JP4387148B2 - Content distribution system and content reception / playback apparatus - Google Patents

Description

  The present invention relates to an improvement in a content distribution service capable of distributing content to a user according to the user's preference.

  Conventionally, contents such as music data and video data via wireless communication in portable mobile communication terminals such as mobile phones, PHS terminals and PDAs, and communication devices mounted on mobile bodies such as vehicles, ships and airplanes. Can be received and played back. For example, by receiving and reproducing radio broadcast waves for radio, a user can enjoy audio output from a speaker or the like, a wireless communication system that can enjoy audio output from a speaker, a digital communication network, etc. A wireless communication system capable of receiving and playing back digital content such as music data is known.

  However, in a broadcast-type content distribution system such as radio broadcasting, the same program (content) is provided to an unspecified number of users, and the user cannot always enjoy the content he / she wants to view. There was a problem. In order to deal with these problems, many content distribution systems capable of performing on-demand content distribution in consideration of user preferences are known.

For example, in Patent Document 1 below, a user's content preference status is monitored, and content having a high preference level of the user is stored in a content storage unit arranged in a location closest to the user terminal in the network configuration. A content distribution network system for storage is disclosed.
Japanese Patent Laying-Open No. 2003-30087 (paragraphs 0018-0024, FIG. 2)

  However, the conventional content distribution system has a problem that the user cannot always view the desired content when he / she wants to view the content. In addition, content is distributed according to the user's preference. However, when only the user's preference is considered, there is a problem that the same or similar content may always be distributed.

  In addition, since content is distributed without considering the user's content viewable time, for example, when the user is viewing content with an in-vehicle content reception / playback device, the user reaches the destination while the content is being distributed. Therefore, there is a problem that the user has to end the viewing of the content in a halfway state. Further, in a place where the communication environment is bad, the user cannot receive the content and the content is There is a problem that it is cut off in the middle or content distribution becomes impossible.

  In view of the above problems, the present invention provides content distribution capable of performing a program configuration related to content distributed to the user side in accordance with various situations, preferences, communication environment, etc. on the user side who views the content. It is an object of the present invention to provide a system and a content reception / playback apparatus.

In order to achieve the above object, in the present invention, a content server for distributing content, a service server having content candidate list information including identification information of the content that can be distributed from the content server, and the content server for transmitting the content A content distribution system in which a user-side content reception / playback apparatus that receives and plays back is connected via a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content The program guide information is generated by determining the order, the program guide information is transmitted to the service server, and the service server transmits the program guide information received from the content reception / playback device to the content server. Content delivery instructions based on A server distributes the content directly or through the service server to the content reception / playback device, and the content reception / playback device receives and plays back the content according to the program guide information. Configured,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content reception / playback apparatus refers to a predicted required time to the destination by the route guidance function when creating the program guide information, or the time length of the content to be received and played back, or a plurality of the content A content distribution system is provided that is configured to determine a total length of time.
In order to achieve the above object, according to the present invention, a content server for distributing content, a service server having content candidate list information including identification information of the content that can be distributed from the content server, and the content server A content distribution system in which a content reception / playback device on a user side that receives and plays back content is connected by a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content The program guide information is generated by determining the order, the program guide information is transmitted to the service server, and the service server transmits the program guide information received from the content reception / playback device to the content server. Content delivery instructions based on A server distributes the content directly or through the service server to the content reception / playback device, and the content reception / playback device receives and plays back the content according to the program guide information. Configured,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving and reproducing device, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the selection of the content depending on where it is expected to pass by the path information There is provided a content distribution system configured to generate the program guide that reproduces the selected content at a time predicted to pass through the place by a probabilistic analysis technique .
In order to achieve the above object, a content server for distributing content, a service server having content candidate list information including identification information of the content that can be distributed from the content server, and the content server receive the content. A content distribution system in which a content reception / playback device on the user side that performs playback is connected via a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content The program guide information is generated by determining the order, the program guide information is transmitted to the service server, and the service server transmits the program guide information received from the content reception / playback device to the content server. Content delivery instructions based on A server distributes the content directly or through the service server to the content reception / playback device, and the content reception / playback device receives and plays back the content according to the program guide information. Configured,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving / playback apparatus refers to the route information to the destination by the route guidance function when creating the program guide information, and the content according to the communication environment of the place predicted to pass by the route information The content distribution system is configured to generate the program guide that reproduces the selected content at a time when the selection is performed by a method of probabilistic analysis and is predicted to pass the place .

In order to achieve the above object, according to the present invention, a content server for distributing content, a service server having content candidate list information including identification information of the content that can be distributed from the content server, and the content server A content distribution system in which a content reception / playback device on a user side that receives and plays back content is connected by a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content Distribution of the content according to the program guide information to the content reception / playback device by determining the order and creating the program guide information and transmitting the program guide information to the content server And the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content reception / playback apparatus refers to a predicted required time to the destination by the route guidance function when creating the program guide information, or the time length of the content to be received and played back, or a plurality of the content A content distribution system is provided that is configured to determine a total length of time.
In order to achieve the above object, according to the present invention, a content server for distributing content, a service server having content candidate list information including identification information of the content that can be distributed from the content server, and the content server A content distribution system in which a content reception / playback device on a user side that receives and plays back content is connected by a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content Distribution of the content according to the program guide information to the content reception / playback device by determining the order and creating the program guide information and transmitting the program guide information to the content server And the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving and reproducing device, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the selection of the content depending on where it is expected to pass by the path information There is provided a content distribution system configured to generate the program guide that reproduces the selected content at a time predicted to pass through the place by a probabilistic analysis technique .
In order to achieve the above object, according to the present invention, a content server for distributing content, a service server having content candidate list information including identification information of the content that can be distributed from the content server, and the content server A content distribution system in which a content reception / playback device on a user side that receives and plays back content is connected by a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content Distribution of the content according to the program guide information to the content reception / playback device by determining the order and creating the program guide information and transmitting the program guide information to the content server And the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving / playback apparatus refers to the route information to the destination by the route guidance function when creating the program guide information, and the content according to the communication environment of the place predicted to pass by the route information The content distribution system is configured to generate the program guide that reproduces the selected content at a time when the selection is performed by a method of probabilistic analysis and is predicted to pass the place .

In order to achieve the above object, in the present invention, a content server that distributes content, a service server that performs management related to the distribution of content, and content candidate list information indicating content that can be distributed by the content server are stored in advance A content distribution system in which a content reception / playback device on a user side that receives and plays back the content from the content server is connected by a network;
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content to be received and reproduced is selected, the reproduction order of the content is determined, program guide information is generated, the program guide information is transmitted to the service server, and the service server includes the content server In response to the content distribution instruction based on the program guide information received from the content reception / playback device, the content server relays the service server directly or to the content reception / playback device. Distributing content, and the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with the information,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content reception / playback apparatus refers to a predicted required time to the destination by the route guidance function when creating the program guide information, or the time length of the content to be received and played back, or a plurality of the content A content distribution system is provided that is configured to determine a total length of time.
In order to achieve the above object, in the present invention, a content server that distributes content, a service server that performs management related to the distribution of content, and content candidate list information indicating content that can be distributed by the content server are stored in advance. A content distribution system in which a content reception / playback device on a user side that receives and plays back the content from the content server is connected by a network;
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content to be received and reproduced is selected, the reproduction order of the content is determined, program guide information is generated, the program guide information is transmitted to the service server, and the service server includes the content server In response to the content distribution instruction based on the program guide information received from the content reception / playback device, the content server relays the service server directly or to the content reception / playback device. Distributing content, and the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with the information,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving and reproducing device, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the selection of the content depending on where it is expected to pass by the path information There is provided a content distribution system configured to generate the program guide that reproduces the selected content at a time predicted to pass through the place by a probabilistic analysis technique .
In order to achieve the above object, in the present invention, a content server that distributes content, a service server that performs management related to the distribution of content, and content candidate list information indicating content that can be distributed by the content server are stored in advance. A content distribution system in which a content reception / playback device on a user side that receives and plays back the content from the content server is connected by a network;
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content to be received and reproduced is selected, the reproduction order of the content is determined, program guide information is generated, the program guide information is transmitted to the service server, and the service server includes the content server In response to the content distribution instruction based on the program guide information received from the content reception / playback device, the content server relays the service server directly or to the content reception / playback device. Distributing content, and the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with the information,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving / playback apparatus refers to the route information to the destination by the route guidance function when creating the program guide information, and the content according to the communication environment of the place predicted to pass by the route information The content distribution system is configured to generate the program guide that reproduces the selected content at a time when the selection is performed by a method of probabilistic analysis and is predicted to pass the place .

In order to achieve the above object, according to the present invention, a content server for distributing content and content candidate list information indicating content that can be distributed by the content server are held in advance, and the content is received from the content server. A content distribution system in which a content reception / playback device on the user side that performs playback is connected via a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content server selects the content to be received and played, determines the playback order of the content, creates program guide information, and transmits the program guide information to the content server. Delivering the content according to the program guide information to the receiving and reproducing device, and the content receiving and reproducing device is configured to receive and reproduce the content according to the program guide information;
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content reception / playback apparatus refers to a predicted required time to the destination by the route guidance function when creating the program guide information, or the time length of the content to be received and played back, or a plurality of the content A content distribution system is provided that is configured to determine a total length of time.
In order to achieve the above object, according to the present invention, a content server for distributing content and content candidate list information indicating content that can be distributed by the content server are held in advance, and the content is received from the content server. A content distribution system in which a content reception / playback device on the user side that performs playback is connected via a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content server selects the content to be received and played, determines the playback order of the content, creates program guide information, and transmits the program guide information to the content server. Delivering the content according to the program guide information to the receiving and reproducing device, and the content receiving and reproducing device is configured to receive and reproduce the content according to the program guide information;
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving and reproducing device, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the selection of the content depending on where it is expected to pass by the path information There is provided a content distribution system configured to generate the program guide that reproduces the selected content at a time predicted to pass through the place by a probabilistic analysis technique .
In order to achieve the above object, according to the present invention, a content server for distributing content and content candidate list information indicating content that can be distributed by the content server are held in advance, and the content is received from the content server. A content distribution system in which a content reception / playback device on the user side that performs playback is connected via a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content server selects the content to be received and played, determines the playback order of the content, creates program guide information, and transmits the program guide information to the content server. Delivering the content according to the program guide information to the receiving and reproducing device, and the content receiving and reproducing device is configured to receive and reproduce the content according to the program guide information;
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving / playback apparatus refers to the route information to the destination by the route guidance function when creating the program guide information, and the content according to the communication environment of the place predicted to pass by the route information The content distribution system is configured to generate the program guide that reproduces the selected content at a time when the selection is performed by a method of probabilistic analysis and is predicted to pass the place .

In order to achieve the above object, according to the present invention, there is provided a content reception / playback apparatus on the user side that receives and plays back content from the content distribution side,
Content candidate list information receiving means for receiving content candidate list information indicating content that can be distributed from the content distribution side from the content distribution side;
Based on at least one of the user-side condition, the user-side environment condition, and the content-related condition, receiving and receiving the contents described in the received content candidate list information and Selecting the content to be played and determining the playback order of the content to create program guide information;
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
When creating the program guide information, the program composition means refers to the estimated time required to reach the destination by the route guidance function, or the time length of the content to be received and played, or a plurality of the content A content reception / playback apparatus configured to determine a total time length is provided.
In order to achieve the above object, according to the present invention, there is provided a content reception / playback apparatus on the user side that receives and plays back content from the content distribution side,
Content candidate list information receiving means for receiving content candidate list information indicating content that can be distributed from the content distribution side from the content distribution side;
Based on at least one of the user-side condition, the user-side environment condition, and the content-related condition, receiving and receiving the contents described in the received content candidate list information and Selecting the content to be played and determining the playback order of the content to create program guide information;
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
The program structure means, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the probability of selection of the content depending on where it is expected to pass by the path information There is provided a content reception / playback apparatus configured to create the program guide for playing back the selected content at a time predicted by passing through the location by a logical analysis technique .
In order to achieve the above object, according to the present invention, there is provided a content reception / playback apparatus on the user side that receives and plays back content from the content distribution side,
Content candidate list information receiving means for receiving content candidate list information indicating content that can be distributed from the content distribution side from the content distribution side;
Based on at least one of the user-side condition, the user-side environment condition, and the content-related condition, receiving and receiving the contents described in the received content candidate list information and Selecting the content to be played and determining the playback order of the content to create program guide information;
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
The program composition means refers to the route information to the destination by the route guidance function when creating the program guide information, and determines the content of the content according to the communication environment of the place predicted to pass by the route information. There is provided a content receiving / reproducing apparatus configured to generate the program guide for performing the selection at a time when selection is performed by a probabilistic analysis technique and passing the place is predicted .

In order to achieve the above object, according to the present invention, there is provided a content reception / playback apparatus on the user side that receives and plays back content from the content distribution side,
Content candidate list information storage means in which content candidate list information indicating contents that can be distributed from the content distribution side is stored in advance;
Based on at least one of the user-side conditions, the user-side environment conditions, and the content-related conditions, the content candidate list information is stored in the content candidate list information storage unit. Selecting the content to be received and played out from the content, and determining the playback order of the content to create program guide information; and
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
When creating the program guide information, the program composition means refers to the estimated time required to reach the destination by the route guidance function, or the time length of the content to be received and played, or a plurality of the content A content reception / playback apparatus configured to determine a total time length is provided.
In order to achieve the above object, according to the present invention, there is provided a content reception / playback apparatus on the user side that receives and plays back content from the content distribution side,
Content candidate list information storage means in which content candidate list information indicating contents that can be distributed from the content distribution side is stored in advance;
Based on at least one of the user-side conditions, the user-side environment conditions, and the content-related conditions, the content candidate list information is stored in the content candidate list information storage unit. Selecting the content to be received and played from the content, and determining the playback order of the content to create program guide information; and
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
The program structure means, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the probability of selection of the content depending on where it is expected to pass by the path information There is provided a content reception / playback apparatus configured to create the program guide for playing back the selected content at a time predicted by passing through the location by a logical analysis technique .
In order to achieve the above object, according to the present invention, there is provided a content reception / playback apparatus on the user side that receives and plays back content from the content distribution side,
Content candidate list information storage means in which content candidate list information indicating contents that can be distributed from the content distribution side is stored in advance;
Based on at least one of the user-side conditions, the user-side environment conditions, and the content-related conditions, the content candidate list information is stored in the content candidate list information storage unit. Selecting the content to be received and played from the content, and determining the playback order of the content to create program guide information; and
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
The program composition means refers to the route information to the destination by the route guidance function when creating the program guide information, and determines the content of the content according to the communication environment of the place predicted to pass by the route information. There is provided a content receiving / reproducing apparatus configured to generate the program guide for performing the selection at a time when selection is performed by a probabilistic analysis technique and passing the place is predicted .

  The present invention provides a content distribution system or content reception / playback apparatus having the above-described configuration, so that content distributed to the user side according to various situations, preferences, communication environments, etc. on the user side viewing the content It is possible to perform the program configuration according to the above.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the in-vehicle device 1 mounted on the vehicle has a content reception / playback function, and the user side operates the in-vehicle device 1 to receive audio data or text data content. The case of listening to will be described. That is, the in-vehicle device 1 described here can be called a personalized radio capable of receiving a radio broadcast based on program guide information (time table) set in consideration of various conditions on the user side.

  The present invention is not limited to this embodiment. For example, a content reception / playback device independent of the in-vehicle device 1 can be installed, and a PC (Personal Computer) is also possible. It is also possible to install a content reception / playback function in a mobile terminal or the like.

  FIG. 1 is a schematic diagram showing a configuration of a content distribution system in an embodiment of the present invention. The content distribution system shown in FIG. 1 functions as an in-vehicle device 1 that is mounted on a vehicle 3 and has a content reception / playback function, a service server 5 that functions as a service provider that provides a content distribution service, and a content provider that distributes content. The content server 7 is included, and the in-vehicle device 1 and the base station 9 are configured to perform wireless communication. The service server 5, the content server 7, and the base station 9 are connected by a network 10. The service server 5 holds information related to the content that can be distributed from the content server 7, and the content server 7 includes music, music introduction, advertisement, sports relay, variety, event guidance, traffic information, advertisement, time signal. Various contents such as text, still images, audio, and moving images are distributed. Further, in this specification, the service server 5 and the content server 7 belong, the side that provides the content distribution service is called the content distribution side, the in-vehicle device 1 that the user operates belongs, and the side that receives the content distribution service is the user side Sometimes called.

  Next, the configuration of the in-vehicle device 1 mounted on the vehicle 3 will be described. FIG. 2 is a block diagram showing the configuration of the in-vehicle device of the content distribution system in the embodiment of the present invention. As shown in FIG. 2, the in-vehicle device 1 enables a position detection unit 11 that detects the current position of the vehicle 3, a map data input unit 16 that acquires map data from a predetermined map data storage medium, and a user operation. Operation switch group 17 such as a touch switch and a mechanical switch, a control circuit 18 connected thereto, an external memory 19 connected to the control circuit 18, a display unit 20 such as a liquid crystal display for visually displaying information, a speaker, etc. A remote control sensor (remote control) that has the same functions as the audio output unit 21, the external information input / output unit 22 that performs connection and communication with an external network, and the operation switch group 17 and that can be operated by the user from a remote location. Sensor) 23, remote controller (remote controller) 24, speech synthesis unit 25, and program composition unit 26.The control circuit 18 is constituted by a normal computer and is not shown in the figure, but includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Ramdom Access). Memory), I / O (input / output interface), and bus lines for connecting these components.

  The position detection unit 11 includes a geomagnetic sensor 12 that detects an azimuth by detecting geomagnetism, a gyroscope 13 that detects inclination and direction to perform position correction, a distance sensor 14 that detects a travel distance, and a GPS (Global Positioning System) satellite. It has a GPS receiver 15 that detects the current position of the vehicle 3 based on radio waves from. Each of these detection means 12 to 15 has an error having a different property, and is configured to be able to complement each measurement result by a plurality of sensors. Further, depending on the accuracy, only a part of the detection means 12 to 15 described above may be used, and further, a steering rotation sensor, a wheel sensor of each rolling wheel of the vehicle 3, and the like may be used. It is.

  The map data input unit 16 is for acquiring various types of data including so-called map matching data, map data, facility index data, and landmark data for improving the accuracy of position detection. As recording media for recording these various data, CD-ROM (Compact Disc-Read Only Memory) and DVD-ROM (Digital Versatile Disc-Read Only Memory) are generally used because of the amount of data. However, it is also possible to use a recording medium such as an HDD (Hard Disc Drive) or a memory card.

  The display unit 20 is, for example, a color display liquid crystal display. The display screen of the display unit 20 is supplied from a vehicle current position mark based on the current position supplied from the position detection unit 11 and the map data input unit 16. Map data and additional data such as a guide route to be displayed on the map can be displayed in an overlapping manner. Further, for example, by executing a navigation program stored together with the map data in the control circuit 18, the optimum route from the current position to the destination based on the destination input from the operation switch group 17 or the remote control 24. And a route guidance function for calculating the required time and displaying it on the display unit 20. As a method for automatically setting the optimum route, for example, the Dijkstra method is used.

  Further, the external information input / output unit 22 receives information provided from an infrastructure network such as VICS (Vehicle Information Communication System) or a network 10 such as the Internet, and sends information to a communication device connected to the network 10. It is for sending. Information received via the network 10 is processed by the control circuit 18, and information processed by the control circuit 18 can be transmitted from the external information input / output unit 22 to the network 10 as necessary. The voice synthesizer 25 converts text data stored in the external memory 19 or text data received from the network 10 into voice data and outputs the voice data from the voice output unit 21 as voice.

  Moreover, the program structure part 26 is a component for creating the time table (program schedule) of the content received from the network 10 based on a user's operation and various information. The program configuration unit 26 includes a program configuration program 31 that can be executed by the control circuit 18 and program configuration setting information 32 that is used by the program configuration program 31 during program configuration. The program composition program 31 is activated when a request for receiving and playing back content from the content server 7 is made by the user, and the user's preference and situation, the state of the vehicle 3, the road situation, time, weather, and the like are displayed. It is described that a process for determining a time table of contents to be received and reproduced is performed in accordance with various conditions such as the beginning.

  Next, an outline of the operation of the content distribution system in the embodiment of the present invention will be described. FIG. 3 is a sequence chart showing an outline of an example of the operation of the content distribution system in the embodiment of the present invention. First, the vehicle-mounted device 1 is activated when the user gets on the vehicle 3 and turns on the ignition key or starts the engine of the vehicle 3 (step S101: activation).

  Here, if the user wishes to distribute the content from the content server 7 and performs a predetermined content distribution request operation such as pressing a start button assigned to the operation switch group 17, the user can listen. Content candidate request information for requesting a list of content is transmitted from the in-vehicle device 1 to the service server 5 via the base station 9 and the network 10 (step S103: transmission of content candidate request information). At this time, the ID information of the in-vehicle device 1 for identifying the user side is also transmitted together with the content candidate request information.

  Further, at the time of the content distribution request operation, for example, the user can set the ratio of the music and the sound of the content to be listened to. FIG. 4 is a schematic diagram showing an example of a music audio setting bar displayed on the display unit of the in-vehicle device according to the embodiment of the present invention. In the music sound setting bar 41 shown in FIG. 4, for example, when a predetermined button of the operation switch group 17 is pressed, the pointer 42 moves left and right. If the pointer 42 is moved to the left and a predetermined determination button is pressed, the proportion of the audio content in the entire content increases. If the pointer is moved to the right and the predetermined determination button is pressed, the entire content is The proportion of music content in With such a simple configuration, the user can set the ratio between music and voice, and it is possible to reproduce voice data that reflects the atmosphere in the vehicle and the user's preferences.

  On the other hand, the service server 5 conducts a questionnaire on user preferences and attributes (gender, age, address, family structure, etc.) in advance, or obtains a user's response to previously distributed content, so that the in-vehicle device 1 holds the correspondence relationship between the ID information of 1 and the preference information of the user of the in-vehicle device 1. When the content candidate request information is received from the in-vehicle device 1, the user type is determined by referring to the user preference information, and a plurality of content candidates corresponding to the type are extracted (step S501: content candidate). (Extract), the list information of the extracted plurality of content candidates is returned to the in-vehicle device 1 (step S503: reply of content candidate list information).

  The content candidate list information, together with the identification information of the content that can be distributed from the content server 7, includes various titles such as the title of each content, the playback time of each content (the time from the start to the end), the genre of each content, and the like. It contains information, not the content itself. Further, in the above, the service server 5 selects content according to the user type based on user preferences and attributes and creates content candidate list information, thereby suppressing the data capacity of the content candidate list information. Although it is possible to select content based on user preferences and attributes in the in-vehicle device 1, all the list information of distributable content may be transmitted to the in-vehicle device 1.

  The in-vehicle device 1 receives the content candidate list information, refers to various conditions, and selects and distributes the content that is actually distributed from the contents described in the content candidate list information ( The content playback order in the in-vehicle device 1 is determined, and a time table is created based on the selected optimal content (step S105: creation of time table). At this time, the in-vehicle device 1 determines a plurality of contents that are optimal for reception and reproduction in consideration of various conditions. The selection of contents in consideration of these various conditions will be described in detail later. It should be noted that, for example, an optimum content including content stored in a predetermined music data recording medium (local content storage means) of the in-vehicle device 1 such as a CD or a hard disk storing music data inserted in the external memory 19 is used. It is also possible to select content. Further, when the ratio between the sound and the music is set by the music audio setting bar 41, the contents are selected according to this ratio.

  In addition, for example, the time table is set so that the time table has a time length that matches the estimated required time to the destination (that is, a time table in which the total playback time of the plurality of contents matches the expected required time to the destination). Create. As a result, it is possible to avoid the problem that the user has to finish listening to the content in a halfway state (a state during playback) when arriving at the destination.

  Also, for example, the content distribution order is determined according to the route information, and at the time when it is expected to pass through a place with a poor communication environment such as a tunnel, it is expected to receive text data or run on a road along the sea. It is also possible to adjust the timetable so that music that matches the seascape can be received at the time of day. Also, for example, in order to avoid simultaneous audio output of music and a time signal that may cause discomfort to the user, the content to be played at the time when the time signal is output is set to content other than the music (for example, advertisement or news) It is also possible. In addition, with regard to contents such as weather forecasts that are closely related to the region, predictions are made from the in-vehicle device 1 to the content server 7 when the time table is transmitted or when the weather forecast content is received from the content server 7. By transmitting the position information or the current location, the weather forecast at the current location of the vehicle 3 can be reproduced.

  Then, the in-vehicle device 1 transmits this time table together with the content distribution request information to the content server 7 (step S107: transmission of time table). The content server 7 refers to the time table received from the in-vehicle device 1 (step S701: reference to the time table), and distributes the predetermined content at a predetermined time set by the time table (step S703: content). The in-vehicle device 1 performs streaming reproduction of the received content (step S109: content reproduction). As described above, the in-vehicle device 1 can reproduce content that does not make the user bored by creating a timetable that enables reception and reproduction of content suitable for various conditions on the user side. However, it is possible to reduce the trouble of selecting the content by itself, and further, it becomes unnecessary to perform the selection operation of the content during driving.

  In the above description, the case where the in-vehicle device 1 performs streaming playback of content is described. However, since the content server 7 acquires the time table of the content to be distributed, for example, the time table is set by the time table. It is also possible to distribute the content (pre-read distribution) slightly before a certain time, temporarily store the content received by the in-vehicle device 1, and reproduce the temporarily stored content according to the time table. Further, for example, regarding information such as news, the content server 7 distributes (text distribution) to the in-vehicle device 1 with text data having a smaller data capacity than the audio data, and the speech synthesizer 25 of the in-vehicle device 1 performs the distribution. It is also possible to output voice by converting text data to voice data.

  In addition, when text data is converted into voice data, it is possible to convert the content of the text data into an appropriate expression suitable for the current user-side conditions and user-related environment conditions. Thus, for example, if there are multiple passengers according to the number of passengers in the vehicle, the expression “you” is replaced with the expression “everyone”, or information on local heavy rain is transmitted. When using the azimuth from the current position of the vehicle, it is easy to understand for the user, such as “It is raining heavily in the south” and “It is raining heavily in the east”. Or can be replaced.

  The prefetch distribution and text distribution described above are particularly effective in that stable content can be reproduced when the user receiving the content moves and the communication environment changes. For example, even when the communication between the in-vehicle device 1 and the content server 7 is temporarily interrupted due to movement of the vehicle 3 or the like, the in-vehicle device 1 reproduces the content received and stored by the pre-reading distribution, thereby enabling communication. There is no interruption of content playback due to disconnection. Further, when the reproduction of content is interrupted due to the disconnection of communication, it is possible to automatically reproduce the content stored in a predetermined music data recording medium of the in-vehicle device 1. . Further, even when the communication speed between the in-vehicle device 1 and the base station 9 is slow, transmission of text data with a small data capacity is possible without delay, and content reproduction is also performed without interruption.

  Further, in the sequence chart of FIG. 3, the creation of the time table in the in-vehicle device 1 and the transmission of the time table from the in-vehicle device 1 to the content server 7 are performed only once. The in-vehicle device 1 changes the timetable according to changes in conditions accompanying the progress (for example, change of destination or waypoint, boarding or getting off of a passenger, change of driver, change in expected time required due to an accident or traffic jam, etc.) It is also possible to transmit a new time table to the content server 7 by updating the above. In this case, the in-vehicle device 1 can also update the time table based on the content candidate list information received first, and can receive the content candidate list information from the service server 5 again to It is also possible to create a table.

  In addition, when the in-car device 1 selects paid content as the optimum content, the user obtains permission for receiving and playing paid content in advance from the user, or when the paid content is selected It is desirable to confirm the above. In addition, for example, when the time-table creation, the in-vehicle device 1 always selects the content of the advertisement, or the advertisement information is inserted between the contents to be distributed on the content server 7 side. It is also possible for the management side to obtain a price for advertisement distribution from the advertisement sponsor, and to reduce the communication cost paid by the user and the price for the content.

  In the above description, the service server 5 and the content server 7 are described as separate servers. However, the service server 5 and the content server 7 can be realized by a single server. Further, the functions of both the service server 5 and the content server 7 can be realized by, for example, a group of servers (a set of a plurality of servers) installed in a predetermined center on the content distribution side. In the above description, the in-vehicle device 1 has been described with respect to a mode in which a list of contents that can be distributed is acquired from the content server 7 by receiving the content candidate list information from the service server 5. The in-vehicle device 1 can also hold the content candidate list information in advance by setting at the time of shipment or reading from a CD-ROM or DVD-ROM in the in-vehicle device 1. In this case, it is not necessary to install the service server 5, and the processes of step S103, step S501, and step S503 shown in FIG. 3 are omitted.

  Further, the content candidate list information and the content can be transmitted from the service server 5 or the content server 7 regardless of the content candidate request from the in-vehicle device 1 on the user side. As a result, the content distribution side can update the content candidate list information held in the in-vehicle device 1 and can list desired advertisement content in the content candidate list information. It is possible to store desired content in the mobile device 1, and when the time table is created in the in-vehicle device 1, the content distribution side can handle the content desired to be distributed as one of the content candidates. .

  It is also possible to transmit content candidate list information and content from the service server 5 and the content server 7 while a time table is created in the in-vehicle device 1 and content is distributed according to the time table. This allows the content distribution side to re-create the time table so that the content desired to be distributed is included, or content that should be distributed urgently (for example, content related to news such as earthquake disaster information) is given priority. (For forced playback) can be distributed.

  In addition, with regard to charging for pay content, the service server 5 that manages the ID information of the in-vehicle device 1 (that is, the user's personal information) can perform management and aggregation of the charge content. The content server 7 can be configured to manage the ID information (user's personal information) of the in-vehicle device 1 so as to be able to manage and count the price of paid content. Thus, by disclosing ID information (user personal information) of the in-vehicle device 1, the content server 7 can be configured to perform management and tabulation of compensation for paid content.

  In the above-described embodiment, the mode in which content is distributed from the content server 7 when the in-vehicle device 1 transmits the time table to the content server 7 has been described. It is also possible to transmit a time table to 5 and manage content distribution by the service server 5. In this case, the service server 5 holds identification information (identification information on the user side) of all the in-vehicle devices 1 and identification information of all the content servers 7, and distributes content between the in-vehicle device 1 and the content server 7. It has a function to mediate services. In particular, the service server 5 can relay the communication between the in-vehicle device 1 and the content server 7 so that the in-vehicle device 1 and the content server 7 cannot be directly seen from each other. 1 anonymity and the security of the content server 7 can be improved.

  Hereinafter, a case where content distribution management is performed by the service server 5 will be described. FIG. 6 is a sequence chart showing an outline of another example of the operation of the content distribution system in the embodiment of the present invention. In the sequence chart shown in FIG. 6, activation of the in-vehicle device 1 (step S101), transmission of content candidate request information (step S103), extraction of content candidates (step S501), return of content candidate list information (step S503), time Each process up to table creation (step S105) and content reproduction (step S109) are the same as those in the sequence chart shown in FIG. As described above, by causing the in-vehicle device 1 to hold the content candidate list information in advance, it is possible to omit steps S103, S501, and S503.

  After creating the time table, the in-vehicle device 1 transmits the time table together with the content distribution request information to the service server 5 (step S191: transmission of the time table). The service server 5 refers to the time table received from the in-vehicle device 1 (step S591: reference to the time table), and distributes predetermined content at a predetermined time set by the time table. At this time, examples of content distribution methods from the content distribution side include the following three methods.

  In the first method, the service server 5 refers to the time table (step S591: reference to the time table), and transmits distribution instruction information for instructing the content server 7 to distribute the content to the in-vehicle device 1. (Step S593: Content distribution instruction), the content server 7 distributes the content to the in-vehicle device 1 (Step S791: Content distribution).

  In this first method, content information to be distributed and the address of the in-vehicle device 1 to which the content is to be distributed are described in the distribution instruction information from the content server 7 to the in-vehicle device 1. Predetermined content is sent directly. The content needs to be distributed at a predetermined time. In order to realize content distribution at the predetermined time, the content distribution time is described in the distribution instruction information, and the content server 7 is set at the distribution time. It is also possible to distribute the content from the content server 7 by the service server 5 instructing the content server 7 to distribute the content at the content distribution time. Can be distributed.

  In the second method, the service server 5 refers to the time table (step S591: reference to the time table), and distribution instruction information for instructing the content server 7 to distribute the content to the in-vehicle device 1 is provided. The content is transmitted (step S593: content distribution instruction), and the content server 7 relays the content to the in-vehicle device 1 (step S793: content transmission, step S595: content distribution). It is what you want to do.

  In the second method, identification information of content to be distributed is described in the distribution instruction information, and the content server 7 transmits this content to the service server 5. The service server 5 can also temporarily cache the content received from the content server 7 and distribute the cached content to the in-vehicle device 1 at a predetermined distribution time. It is also possible to transfer the content received from the content server 7 to the in-vehicle device 1 by a simple process such as changing the address 1 to the transmission destination address. Thereby, the anonymity of the in-vehicle device 1 and the security of the content server 7 can be improved, and centralized management of the content distribution service by the service server 5 is also possible.

  Further, in the third method, when the same content as the content cached in the service server 5 in the second method is requested from the user side, the service server 5 The distributed content is distributed (step S595: content distribution). Thereby, it is possible to reduce the content distribution load in the content server 7 and the traffic between the service server 5 and the content server 7. In addition, the service server 5 can cache content efficiently with limited resources by preferentially caching content that is frequently distributed or the latest content.

  The method of managing content distribution by the service server 5 in this way is also useful in a system in which a plurality of content servers 7 are distributed on the network 10. For example, a plurality of content servers 7 are distributed on the network 10 such as a content server 7 specializing in music distribution, a content server 7 specializing in news distribution, and a content server 7 specializing in advertisement distribution. Even when the service server 5 is provided, the content distribution to the in-vehicle device 1 according to the time table can be realized by the service server 5 performing an appropriate content distribution instruction to each content server 7.

  Next, a description will be given of determination of content selection in consideration of various conditions, which is performed when the time table is created in step S105. In the real world, the content desired by the user is determined by various intricately intertwined conditions, and the desired content is not determined as a single solution. In other words, when the content to be distributed to the user side is estimated by a computer, various conditions are quantified, which of the various conditions acts as a factor, and how each factor is It is necessary to consider whether there is a dependency.

  As described above, for example, a probabilistic analysis technique is useful as a technique for deriving an optimal solution from various conditions including uncertain information. Probabilistic analysis methods include classical multivariate analysis methods, covariance structure analysis, decision tree methods, neural networks, and Bayesian networks. Here, in particular, in the inference network for evaluating the probability of the actual value that the desired random variable (result) can take from the confirmed value of the observed variable (cause), bi-directional calculation of the causal relationship (a priori and A case will be described in which a probability propagation algorithm that integrates both of them is established and a Bayesian network that is useful when the inference network changes dynamically is described.

FIG. 5 is a schematic diagram for explaining the outline of a Bayesian network used as a probabilistic analysis algorithm of the program composition program shown in FIG. A Bayesian network represents a qualitative dependency of a random variable by a graph structure, and has two random variables (indicated by a circle in FIG. 5) having a dependency (indicated by a link connecting circles in FIG. 5). This is a model in which the quantitative relationship between the two is represented by a conditional probability. For example, FIG. 5 shows a random variable X ₁ and a random variable X ₃ , a random variable X ₂ and a random variable X ₃ , a random variable X ₂ and a random variable X ₄ , a random variable X ₃ and a random variable X ₅ , and a random variable X. A graph structure in which ₄ and the random variable X ₅ have a dependency relationship is illustrated. To each dependency, for example, a random variable X _i and between the random variable X _j, a random variable X _i = random variable in the case of alpha X _j = conditional probability indicating the β become probability P (X _j | X _i ) is set.

According to this Bayesian network, for example, when the random variable X ₁ and the random variable X ₂ are deterministic values that can be estimated or observed, the random variable X ₃ is input by inputting the random variable X ₁ and the random variable X _2. Through the calculation of the random variable X ₄ , the probability of each realization value that the random variable X ₅ can take is output, that is, the probability distribution of the random variable X ₅ to be predicted can be obtained. It is also possible to follow the Bayesian network in the opposite direction, for example, when the random variable X ₅ are determined, through the computation of a probability variable X ₃ and random variable X _4, random variables X ₁ and it is also possible to obtain the probability distribution of the random variable X _2.

  Next, creation of a time table using a Bayesian network in the embodiment of the present invention will be described. The in-vehicle device 1 selects the optimum content from the content described in the content candidate list information in consideration of various conditions in the operation of step S105 in FIG. By making this determination, the time table of the content to be requested for distribution is created. At this time, processing by the program composition program 31 which is application software using the Bayesian network is performed.

  The program composition program 31 is software for constructing a Bayesian network in which quantitative and qualitative dependency relationships of many input / output variables are set. The set value of the conditional probability indicating the quantitative dependency is stored in the program configuration unit 26 as the program configuration setting information 32. Also, the dependence and separation relationship of each random variable and the set value of conditional probability (program configuration setting information 32) are determined by learning based on data accumulated on the producer side of the in-vehicle device 1, for example, Although set in advance at the time of shipment of the apparatus 1, the setting value of the program configuration setting information 32 can be updated in accordance with learning by feedback from the user, as will be described later.

  This Bayesian network consists of conditions relating to the vehicle 3 (conditions on the user side), conditions relating to the environment around the vehicle 3 (conditions relating to the environment on the user side), conditions relating to the user (conditions on the user side), and conditions relating to the content The optimum content is selected from various conditions such as the above, and each piece of information included in these conditions is converted into a numerical value and calculated. For example, the Bayesian network is configured so that the probability distribution of the various information included in the conditions related to the vehicle 3 and the environment and the conditions related to the user can be obtained by inputting various information included in the conditions related to the content to the Bayesian network. To do.

  And by inputting various information included in the conditions related to each content described in the content candidate list information to the Bayesian network, each of the various information included in the conditions related to the vehicle 3 and the environment and the conditions related to the user The probability distribution is calculated, and the degree of equivalence by the filtering method is determined between the calculation result and the values related to the actual vehicle 3 and the environment on the user side and the various information values included in the condition related to the user. It is determined that the content is suitable for distribution in order from the content with the highest equivalence.

  Examples of various information included in the conditions relating to the vehicle 3 and the environment include vehicle type information of the vehicle 3, vehicle width information of the vehicle 3, displacement information of the vehicle 3, fuel type information of the vehicle 3, and vehicle 3 Operation status information, vehicle 3 failure status information, vehicle 3 failure / repair history information, vehicle 3 maintenance information, vehicle speed information, vehicle 3 current location information, vehicle 3 traveling direction information, inter-vehicle distance information, route guidance Boarding information such as destination information, waypoint information, route information, estimated arrival time information, attributes of the number of passengers in the vehicle 3, the gender and age of the passengers, and the relationship with the driver of the vehicle 3 Such as passenger information, road surface information, traffic jam information, accident information, tollgate information, public transportation vehicle information on bus operations, emergency vehicle information such as police cars and ambulances, weather information, communication status information, current time information, etc. .

  In addition, as various information included in the conditions related to the user, for example, user attribute information such as the user's date of birth, gender, blood type, current address, birthplace, educational background, occupation, job title, work location, etc. Favorite color, favorite sound, favorite smell, favorite taste, favorite song, favorite music artist, favorite music genre, favorite book, favorite writer, favorite book genre, favorite TV / radio program, Average daily TV viewing time, average daily radio listening time, favorite food, user preference information such as fashion sensitivity, historical content playback history, main uses of vehicle 3, thoughts on vehicle 3, Examples of the user's weak roads, places where people stop daily, information on daily activities such as frequently used gas stations and gas station card information, and the like.

  Examples of the various information included in the content-related conditions include, for example, content playback history information, content creation date information or last update date information, evaluation information indicating general popularity and evaluation of the content, content consideration Information, content playback time information, content data capacity information, content real-time information, data type information indicating data type such as text, still image, audio, video, etc., content content indicating service type, selling point, etc. Information.

  Note that the various types of information described above are examples, and it is possible to use information other than the above, and it is also possible to use only a part of the various types of information. Further, the above classification method is arbitrary and not restrictive. That is, for example, it is possible to classify the dynamic information that changes with the movement of the vehicle 3 and the passage of time and the static information that does not change without depending on the movement of the vehicle 3 and the passage of time. Can be classified into short-term dynamic information that changes rapidly in a short time and long-term dynamic information that changes slowly over a long time.

  Also, for example, a user's evaluation of the created timetable is obtained by a simple question, and based on this user's evaluation, a conditional probability value in a specific dependency relationship or a conditional probability in all dependency relationships By appropriately modifying the value of, autonomous learning by the Bayesian network is performed, and it is possible to improve the accuracy of content selection suitable for a situation where various conditions are intertwined in a complicated manner.

  The various information included in the conditions relating to the vehicle 3 and the environment and the conditions relating to the user are, for example, static information such as user attribute information and user preference information. Can be stored. In addition, for example, various information can be automatically collected in the in-vehicle device 1 such as storing the location of a gas station or a company name that is frequently used. For dynamic information such as information on destinations, vehicle speed information, and traffic jam information, information is collected via various sensors attached to the vehicle 3 and various information acquisition means, and It is possible to request and obtain input.

  The present invention has an effect that it is possible to perform a program configuration related to content distributed to the user side according to various situations, preferences, communication environment, etc. on the user side who views the content. On the other hand, it is useful for a content distribution service capable of distributing content according to the user's preference.

It is a schematic diagram which shows the structure of the content delivery system in embodiment of this invention. It is a block diagram which shows the structure of the vehicle-mounted apparatus of the content delivery system in embodiment of this invention. It is a sequence chart which shows the outline | summary of an example of operation | movement of the content delivery system in embodiment of this invention. It is a schematic diagram which shows an example of the music audio | voice setting bar displayed on the display part of the vehicle-mounted apparatus in embodiment of this invention. It is a schematic diagram for demonstrating the outline | summary of the Bayesian network utilized as a probabilistic analysis algorithm of the program for program structure shown in FIG. It is a sequence chart which shows the outline | summary of another example of operation | movement of the content delivery system in embodiment of this invention.

Explanation of symbols

1 In-vehicle device (content reception / playback device)
DESCRIPTION OF SYMBOLS 3 Vehicle 5 Service server 7 Content server 9 Base station 10 Network 11 Position detection part 12 Geomagnetic sensor 13 Gyroscope 14 Distance sensor 15 GPS receiver 16 Map data input part 17 Operation switch group 18 Control circuit 19 External memory 20 Display part 21 Voice Output unit 22 External information input / output unit 23 Remote control sensor (remote control sensor)
24 Remote controller (remote control)
25 voice synthesis unit 26 program configuration unit 31 program configuration program 32 program configuration setting information 41 music audio setting bar 42 pointer

Claims (27)

A content server that distributes content, a service server that has content candidate list information including identification information of the content that can be distributed from the content server, and content reception on the user side that receives and reproduces the content from the content server A content distribution system in which a playback device is connected via a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content The program guide information is generated by determining the order, the program guide information is transmitted to the service server, and the service server transmits the program guide information received from the content reception / playback device to the content server. Content delivery instructions based on A server distributes the content directly or through the service server to the content reception / playback device, and the content reception / playback device receives and plays back the content according to the program guide information. Configured,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content reception / playback apparatus refers to a predicted required time to the destination by the route guidance function when creating the program guide information, or the time length of the content to be received and played back, or a plurality of the content A content distribution system configured to determine a total length of time. A content server that distributes content, a service server that has content candidate list information including identification information of the content that can be distributed from the content server, and content reception on the user side that receives and reproduces the content from the content server A content distribution system in which a playback device is connected via a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content The program guide information is generated by determining the order, the program guide information is transmitted to the service server, and the service server transmits the program guide information received from the content reception / playback device to the content server. Content delivery instructions based on A server distributes the content directly or through the service server to the content reception / playback device, and the content reception / playback device receives and plays back the content according to the program guide information. Configured,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving and reproducing device, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the selection of the content depending on where it is expected to pass by the path information A content distribution system configured to generate the program guide that reproduces the selected content at a time predicted to pass through the place by a probabilistic analysis technique . A content server that distributes content, a service server that has content candidate list information including identification information of the content that can be distributed from the content server, and content reception on the user side that receives and reproduces the content from the content server A content distribution system in which a playback device is connected via a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content The program guide information is generated by determining the order, the program guide information is transmitted to the service server, and the service server transmits the program guide information received from the content reception / playback device to the content server. Content delivery instructions based on A server distributes the content directly or through the service server to the content reception / playback device, and the content reception / playback device receives and plays back the content according to the program guide information. Configured,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving / playback apparatus refers to the route information to the destination by the route guidance function when creating the program guide information, and the content according to the communication environment of the place predicted to pass by the route information A content distribution system configured to generate the program guide for performing the selection of the content at a time predicted to pass through the location by performing the selection of the content by a method of probabilistic analysis . A content server that distributes content, a service server that has content candidate list information including identification information of the content that can be distributed from the content server, and content reception on the user side that receives and reproduces the content from the content server A content distribution system in which a playback device is connected via a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content Distribution of the content according to the program guide information to the content reception / playback device by determining the order and creating the program guide information and transmitting the program guide information to the content server And the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content reception / playback apparatus refers to a predicted required time to the destination by the route guidance function when creating the program guide information, or the time length of the content to be received and played back, or a plurality of the content A content distribution system configured to determine a total length of time. A content server that distributes content, a service server that has content candidate list information including identification information of the content that can be distributed from the content server, and content reception on the user side that receives and reproduces the content from the content server A content distribution system in which a playback device is connected via a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content Distribution of the content according to the program guide information to the content reception / playback device by determining the order and creating the program guide information and transmitting the program guide information to the content server And the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving and reproducing device, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the selection of the content depending on where it is expected to pass by the path information A content distribution system configured to generate the program guide that reproduces the selected content at a time predicted to pass through the place by a probabilistic analysis technique . A content server that distributes content, a service server that has content candidate list information including identification information of the content that can be distributed from the content server, and content reception on the user side that receives and reproduces the content from the content server A content distribution system in which a playback device is connected via a network,
The content reception / playback apparatus receives the content candidate list information indicating content that can be distributed from the content server to the content reception / playback apparatus from the service server, and sets the user-side condition and the user-side environment The content to be received and reproduced is selected from the content described in the received content candidate list information and the content is reproduced based on at least one of the condition relating to the content and the condition relating to the content Distribution of the content according to the program guide information to the content reception / playback device by determining the order and creating the program guide information and transmitting the program guide information to the content server And the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving / playback apparatus refers to the route information to the destination by the route guidance function when creating the program guide information, and the content according to the communication environment of the place predicted to pass by the route information A content distribution system configured to generate the program guide for performing the selection of the content at a time predicted to pass through the location by performing the selection of the content by a method of probabilistic analysis . A content server that distributes content, a service server that manages distribution of the content, and content candidate list information indicating content that can be distributed by the content server are held in advance, and the content is received from the content server A content distribution system in which a content reception / playback device on the user side that performs playback is connected via a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content to be received and reproduced is selected, the reproduction order of the content is determined, program guide information is generated, the program guide information is transmitted to the service server, and the service server includes the content server In response to the content distribution instruction based on the program guide information received from the content reception / playback device, the content server relays the service server directly or to the content reception / playback device. Distributing content, and the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with the information,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content reception / playback apparatus refers to a predicted required time to the destination by the route guidance function when creating the program guide information, or the time length of the content to be received and played back, or a plurality of the content A content distribution system configured to determine a total length of time. A content server that distributes content, a service server that manages distribution of the content, and content candidate list information indicating content that can be distributed by the content server are held in advance, and the content is received from the content server A content distribution system in which a content reception / playback device on the user side that performs playback is connected via a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content to be received and reproduced is selected, the reproduction order of the content is determined, program guide information is generated, the program guide information is transmitted to the service server, and the service server includes the content server In response to the content distribution instruction based on the program guide information received from the content reception / playback device, the content server relays the service server directly or to the content reception / playback device. Distributing content, and the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with the information,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving and reproducing device, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the selection of the content depending on where it is expected to pass by the path information A content distribution system configured to generate the program guide that reproduces the selected content at a time predicted to pass through the place by a probabilistic analysis technique . A content server that distributes content, a service server that manages distribution of the content, and content candidate list information indicating content that can be distributed by the content server are held in advance, and the content is received from the content server A content distribution system in which a content reception / playback device on the user side that performs playback is connected via a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content to be received and reproduced is selected, the reproduction order of the content is determined, program guide information is generated, the program guide information is transmitted to the service server, and the service server includes the content server In response to the content distribution instruction based on the program guide information received from the content reception / playback device, the content server relays the service server directly or to the content reception / playback device. Distributing content, and the content receiving / playback apparatus Being configured for receiving and playback of the content in accordance with the information,
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving / playback apparatus refers to the route information to the destination by the route guidance function when creating the program guide information, and the content according to the communication environment of the place predicted to pass by the route information A content distribution system configured to generate the program guide for performing the selection of the content at a time predicted to pass through the location by performing the selection of the content by a method of probabilistic analysis .   The service server is configured to perform selection of the content according to the user-side preference information acquired in advance from the user side, and to create the content candidate list information based on the selection result. Item 10. The content distribution system according to any one of Items 1 to 9.   The content distribution system according to any one of claims 1 to 10, wherein the content server and the service server are configured by a group of servers. A content server for distributing content, and a content reception / playback device on the user side that stores in advance content candidate list information indicating content that can be distributed by the content server, and receives and plays back the content from the content server; Is a content distribution system connected by a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content server selects the content to be received and played, determines the playback order of the content, creates program guide information, and transmits the program guide information to the content server. Delivering the content according to the program guide information to the receiving and reproducing device, and the content receiving and reproducing device is configured to receive and reproduce the content according to the program guide information;
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content reception / playback apparatus refers to a predicted required time to the destination by the route guidance function when creating the program guide information, or the time length of the content to be received and played back, or a plurality of the content A content distribution system configured to determine a total length of time. A content server for distributing content, and a content reception / playback device on the user side that stores in advance content candidate list information indicating content that can be distributed by the content server, and receives and plays back the content from the content server; Is a content distribution system connected by a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content server selects the content to be received and played, determines the playback order of the content, creates program guide information, and transmits the program guide information to the content server. Delivering the content according to the program guide information to the receiving and reproducing device, and the content receiving and reproducing device is configured to receive and reproduce the content according to the program guide information;
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving and reproducing device, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the selection of the content depending on where it is expected to pass by the path information A content distribution system configured to generate the program guide that reproduces the selected content at a time predicted to pass through the place by a probabilistic analysis technique . A content server for distributing content, and a content reception / playback device on the user side that stores in advance content candidate list information indicating content that can be distributed by the content server, and receives and plays back the content from the content server; Is a content distribution system connected by a network,
The content reception / playback apparatus is configured to allow the content of the content described in the content candidate list information based on at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content server selects the content to be received and played, determines the playback order of the content, creates program guide information, and transmits the program guide information to the content server. Delivering the content according to the program guide information to the receiving and reproducing device, and the content receiving and reproducing device is configured to receive and reproduce the content according to the program guide information;
The content reception / playback apparatus is connected so as to be able to transmit / receive data to / from a navigation apparatus having a route guidance function, or is integrated with the navigation apparatus as one function in the navigation apparatus. ,
The content receiving / playback apparatus refers to the route information to the destination by the route guidance function when creating the program guide information, and the content according to the communication environment of the place predicted to pass by the route information A content distribution system configured to generate the program guide for performing the selection of the content at a time predicted to pass through the location by performing the selection of the content by a method of probabilistic analysis .   The content reception / playback apparatus newly creates the program guide information when at least one of the user-side conditions, the user-side environment conditions, and the content-related conditions changes, 15. The content distribution system according to claim 1, wherein the content distribution system is configured to receive and reproduce the content according to the newly created program guide information. A user-side content reception / playback apparatus that receives and plays back content from a content distribution side,
Content candidate list information receiving means for receiving content candidate list information indicating content that can be distributed from the content distribution side from the content distribution side;
Based on at least one of the user-side condition, the user-side environment condition, and the content-related condition, receiving and receiving the contents described in the received content candidate list information and Selecting the content to be played and determining the playback order of the content to create program guide information;
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
When creating the program guide information, the program composition means refers to the estimated time required to reach the destination by the route guidance function, or the time length of the content to be received and played, or a plurality of the content A content reception / playback apparatus configured to determine a total time length. A user-side content reception / playback apparatus that receives and plays back content from a content distribution side,
Content candidate list information receiving means for receiving content candidate list information indicating content that can be distributed from the content distribution side from the content distribution side;
Based on at least one of the user-side condition, the user-side environment condition, and the content-related condition, receiving and receiving the contents described in the received content candidate list information and Selecting the content to be played and determining the playback order of the content to create program guide information;
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
The program structure means, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the probability of selection of the content depending on where it is expected to pass by the path information A content reception / playback apparatus configured to create the program guide for playing back the selected content at a time predicted to pass through the place by a logical analysis technique . A user-side content reception / playback apparatus that receives and plays back content from a content distribution side,
Content candidate list information receiving means for receiving content candidate list information indicating content that can be distributed from the content distribution side from the content distribution side;
Based on at least one of the user-side condition, the user-side environment condition, and the content-related condition, receiving and receiving the contents described in the received content candidate list information and Selecting the content to be played and determining the playback order of the content to create program guide information;
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
The program composition means refers to the route information to the destination by the route guidance function when creating the program guide information, and determines the content of the content according to the communication environment of the place predicted to pass by the route information. A content reception / playback apparatus configured to perform selection by a probabilistic analysis method and to create the program guide for playing back the selected content at a time predicted to pass the place . A user-side content reception / playback apparatus that receives and plays back content from a content distribution side,
Content candidate list information storage means in which content candidate list information indicating contents that can be distributed from the content distribution side is stored in advance;
Based on at least one of the user-side conditions, the user-side environment conditions, and the content-related conditions, the content candidate list information is stored in the content candidate list information storage unit. Selecting the content to be received and played from the content, and determining the playback order of the content to create program guide information; and
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
When creating the program guide information, the program composition means refers to the estimated time required to reach the destination by the route guidance function, or the time length of the content to be received and played, or a plurality of the content A content reception / playback apparatus configured to determine a total time length. A user-side content reception / playback apparatus that receives and plays back content from a content distribution side,
Content candidate list information storage means in which content candidate list information indicating contents that can be distributed from the content distribution side is stored in advance;
Based on at least one of the user-side conditions, the user-side environment conditions, and the content-related conditions, the content candidate list information is stored in the content candidate list information storage unit. Selecting the content to be received and played from the content, and determining the playback order of the content to create program guide information; and
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
The program structure means, when creating the program guide information, by referring to the route information to the destination by the route guidance function, the probability of selection of the content depending on where it is expected to pass by the path information A content reception / playback apparatus configured to create the program guide for playing back the selected content at a time predicted to pass through the place by a logical analysis technique . A user-side content reception / playback apparatus that receives and plays back content from a content distribution side,
Content candidate list information storage means in which content candidate list information indicating contents that can be distributed from the content distribution side is stored in advance;
Based on at least one of the user-side conditions, the user-side environment conditions, and the content-related conditions, the content candidate list information is stored in the content candidate list information storage unit. Selecting the content to be received and played from the content, and determining the playback order of the content to create program guide information; and
Program guide information transmitting means for transmitting the program guide information created by the program composition means to the content distribution side;
Content receiving means for receiving the content distributed from the content distribution side according to the program guide information;
Content reproduction means for reproducing the content;
Have
It is connected so as to be able to send and receive data to and from a navigation device having a route guidance function, or as one function in the navigation device, it is integrated with the navigation device,
The program composition means refers to the route information to the destination by the route guidance function when creating the program guide information, and determines the content of the content according to the communication environment of the place predicted to pass by the route information. A content reception / playback apparatus configured to perform selection by a probabilistic analysis method and to create the program guide for playing back the selected content at a time predicted to pass the place .   Voice synthesis means for converting text data into voice data, and when the text data is received as the content, the voice synthesis means converts the received text data into the voice data and produces voice The content reception / playback apparatus according to any one of claims 16 to 21, wherein the content reception / playback apparatus is configured to output the content.   When converting the text data into audio data, the content of the text data is appropriately determined with reference to at least one of the user-side condition, the user-side environment condition, and the content-related condition. The content reception / playback apparatus according to claim 22, wherein the content reception / playback apparatus is configured to convert into a representation.   Having temporary storage means for temporarily storing the content received from the content server, wherein the content reproduction means is configured to reproduce the content stored in the temporary storage means, or The local content storage unit in which the content is stored in advance is provided, and the content playback unit is configured to play back the content stored in the local content storage unit. The content reception / playback apparatus according to any one of the above.   The content reception / playback apparatus according to any one of claims 16 to 24, wherein the program configuration unit is configured to perform selection of the content by a probabilistic analysis using a Bayesian network.   It has local content storage means for storing the reproducible content, and is described in the content stored in the local content storage means and the content candidate list information when the program guide information is created 26. The content reception / playback apparatus according to claim 16, wherein the content reception / playback apparatus is configured to select the content from both of the content.   Local content storage means for storing the reproducible content, and when the communication with the content server is disconnected and the content cannot be received and played back, the content is stored in the local content storage means. 27. The content reception / playback apparatus according to claim 16, wherein the content reception / playback apparatus is configured to play back the content.

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