CN101267536B - Video and audio partition independent playing and sharing system and method - Google Patents

Abstract

The invention relates to a video and audio partition independent playing and sharing system, which is applied to an automobile and comprises: an audio-video host computer, which has a microprocessor, a storage device to store various digital audio-video data owned by the user for the audio-video sub-computer to play, and a network interface, which can provide at least one digital audio-video data playing service; and several video sub-machines, it has a digital video decoding device, a network interface, a display panel or video output interface and an operation interface; the operation interface is provided with a playing key and a sharing key; so that the audio-visual slave machine can independently and randomly make service request to the audio-visual master machine and obtain the relevant services of the master machine, such as audio-visual playing, or the audio-visual slave machine can invite other audio-visual slave machines to share the service items executed by the display panel by pressing the sharing key. In addition, the invention also discloses a method for sharing the automobile navigation map.

Description

Video and audio partition independent playing and sharing system and method

technical field

The present invention relates to a system and method for independently playing and sharing audio-visual partitions, especially a system and method for independently playing and sharing audio-visual partitions used in automobiles. The service request is made to the audio-visual host and obtained host-related services such as video playback, or the audio-visual sub-unit can invite other audio-visual sub-units to share the service items executed by its display panel by pressing the share button.

Background technique

Please refer to FIG. 1 , which shows a connection schematic diagram of a known car audio and video playback system. As shown in the figure, the known car video playback system, such as DVD or DTV (Digital Television), usually has a host 80 and some display panels 90, usually the display panels 90 are connected to the host 80 via wires 95, so that Receive and play the video and audio signal transmitted by the host 80, such as NTSC or PAL. But the display panel 90 of the above-mentioned known car audio-visual playback system cannot independently display respective contents. For example, user A and user B must watch the same audio-visual signal source, such as DVD video or digital broadcasting, because the host 80 only decodes a single It is a fly in the ointment that user A and user B cannot watch different video and audio signal sources.

Contents of the invention

In order to solve the shortcomings of the above-mentioned known technologies, the object of the present invention is to provide a system and method for independently playing and sharing audio-visual partitions, which uses wired or wireless network interfaces to transmit digital audio-visual files to each display device for independent decoding, so that Users of each display device can play the designated digital audio-visual files as required, or share the media content they are viewing with other users.

Another object of the present invention is to provide a method for car navigation map sharing, so that the driver of the vehicle can share its navigation data with other users, or other users can plan the navigation data according to the driver's needs and share the results Share with drivers to improve driving safety.

Another object of the present invention is to provide a method for recording the state of the audio-visual system before it is shut down, which can record the state of the audio-visual sub-unit when it is turned off, and when it is turned on again, the audio-visual sub-unit can restore its original playback screen.

In order to achieve the above-mentioned purpose, the present invention provides a system for independently playing and sharing video and audio partitions, which is characterized in that it includes:

An audio-visual host with a microprocessor, a storage device and a network interface, which can provide at least one digital audio-visual data playback service; and

Several audio-visual slave machines, which have a digital audio-visual decoding device, a network interface, a display panel or an audio-visual output interface, and an operation interface, which can be connected to the audio-visual host through the network interface, and on the operation interface Has a play button and a share button;

So that the audio-visual sub-unit can make a service request to the audio-visual main unit independently and at any time, and obtain host-related services such as audio-visual playback, or the audio-visual sub-unit can invite other audio-visual sub-units to share its display panel by pressing the share button. Services performed.

Wherein the audio-visual host further includes:

A casing, which has an upper casing and a lower casing, the upper casing and the lower casing can form an accommodating space, and the front end of the upper casing has an opening;

A printed circuit board is placed in the accommodating space for carrying the following components;

A storage device can be inserted into the accommodating space through the opening for storing at least one digital audio-visual file; and

A microprocessor, placed on the printed circuit board and coupled to the storage device, is used to control the operation of the audio-visual host.

Wherein the two sides of this upper shell further have a cooling fin to accelerate the heat dissipation of this shell, and this lower shell further comprises a slot, an exit button and a connection plate, wherein this slot and exit button are Exposed to the opening, the slot can be inserted into the storage device, and the exit button can be used to exit the storage device. The connecting plate is located at the rear side of the slot and is fixed on the lower casing, and further has A connector is used for connecting with the storage device.

Wherein the storage device is a dynamically pluggable hard disk drive or a silicon disk drive.

Wherein the operation interface is a remote controller, a screen touch device or buttons.

Wherein the network interface of the audio-visual main unit and the network interface of the audio-visual sub-machine are both a wireless network or a wired network.

The wireless network interface is Bluetooth, 802.11x wireless LAN, WiMax, Zigbee, or other similar technologies; the wired network interface is RJ-11, RJ-45/PoE, PowerLine, USB cable, 1394 cable line, MOST, IDB-1394 or other similar technologies.

Wherein the display panel is an LCD or other flat display, and the audio-visual output interface is an AV terminal, an S terminal, an HDMI terminal, a VGA terminal, an RGB terminal or similar interfaces.

The playing and sharing function service further includes: a music playing service, a radio broadcasting service, a game service, a navigation service, a digital TV playing service, a video playing service and a photo playing service.

Wherein, on the display panel of the audio-visual sub-machine or an external display, a navigation map, a digital TV, a video, a photo, a music, a game, and a radio broadcast menu pattern are displayed for the user to select and execute through the operation interface. service item, and can share the service item with other audio-visual slave users through the sharing button on the operation interface.

Wherein the digital audio-visual decoding device is a high-speed microprocessor that performs digital audio-visual decoding with software; or a microprocessor and a decoding chip with a special electronic circuit for audio-visual decoding.

Wherein the digital audio-visual file has JPEG, MPEG, H.264, WMV, MP3, WMA, map data or other similar digital audio-visual formats.

Wherein when the play button of the audio-visual sub-machine is pressed, the audio-visual host will send the audio-visual data required by the audio-visual sub-machine to the audio-visual sub-machine; each audio-visual sub-machine has its own independent digital audio-visual decoding device, which is responsible for translating the audio-visual The video and audio data sent by the host is decoded and displayed on the display panel or the audio and video output interface, so as to achieve the purpose of independent playback of audio and video partitions.

In order to achieve the above-mentioned purpose, the present invention provides a method for playing and sharing car audio-visual data, which is characterized in that it includes the following steps:

Provide a video-video host as claimed in claim 1;

Provide several audio-visual sub-machines as claimed in claim 1;

A user of one of the audio-visual sub-units presses the sharing button to provide sharing of audio-visual data playback;

"Share" or similar prompts are displayed on the display panels of other audio-visual sub-units;

If the users of other audio-visual handsets reject the "Share" prompt, the "Share" prompt will disappear after a certain period of time; and

If the users of other audio-visual sub-units accept the “share” prompt, they can press the share button, and the audio-visual host will send the audio-visual data being played by the audio-visual sub-unit that proposed to “share” to the user who accepts the “share”. The audio-visual sub-machine, the same audio-visual data as the display panel of the audio-visual sub-machine that proposes to "share" is played on its display panel.

For reaching above-mentioned object, the present invention provides a kind of method for car navigation map sharing, it is characterized in that, it comprises the following steps:

Provide an audio-visual host as claimed in claim 1;

Provide several audio-visual sub-machines as claimed in claim 1;

A user of one of the audio-visual sub-units presses the sharing button to provide sharing of the navigation map;

"Share" or similar prompts are displayed on the display panels of other audio-visual sub-units;

If the users of other audio-visual handsets reject the "Share" prompt, the "Share" prompt will disappear after a certain period of time; and

If other audio-visual sub-unit users accept the “share” prompt, they can press the share button, and the audio-visual host will send the navigation map and data in use of the audio-visual sub-unit that proposed to “share” to the accepting “share” button. ", the display panel will display the same navigation map data as the display panel of the audio-visual sub-machine that proposes "sharing".

In order to achieve the above-mentioned purpose, the present invention provides a method for recording the state of the audio-visual sub-machine before it is turned off, which is characterized in that it includes the following steps:

Provide a video-video host as claimed in claim 1;

Provide several audio-visual sub-machines as claimed in claim 1;

The user of the audio-visual slave presses the play button to request the audio-visual data playback service from the audio-visual host;

The audio-visual main unit starts the audio-visual data playback service and starts a service monitoring, continuously records the playback status of the audio-visual sub-unit, and stores it in a storage device; and

When the audio-visual sub-unit is turned off and then turned on again, it will automatically request the audio-visual main unit to continue the audio-visual data playback service from the last time the audio-visual sub-unit was turned off. The service monitoring record continues to provide the audio-visual data playback service at the last shutdown point of the audio-visual sub-unit.

Description of drawings

In order for the examiner to easily understand the other features and advantages of the present invention and the effects achieved, the following detailed descriptions are as follows in conjunction with the embodiments and drawings, in which:

FIG. 1 is a schematic diagram showing the connection schematic diagram of a known car audio and video playback system.

FIG. 2 is a schematic diagram, which shows a block diagram of a zone independent playing and sharing system according to the present invention.

FIG. 3 is a schematic diagram showing a block diagram of a partition independent playing and sharing system according to another embodiment of the present invention.

FIG. 4 is a schematic diagram showing the combination of the audio-visual host according to the present invention.

FIG. 5 is a schematic diagram illustrating a schematic diagram of an operation interface according to the present invention.

Fig. 6 is a schematic diagram, which depicts a schematic flow chart of a method for independently playing car audio-visual data partitions according to the present invention;

FIG. 7 is a schematic diagram, which shows the physical schematic diagram of the car audio-visual head unit according to the present invention to play data partitions independently.

FIG. 8 is a schematic diagram illustrating a flow chart of a method for playing and sharing car audio-visual data according to the present invention.

FIG. 9 is a schematic diagram illustrating a flow chart of a method for car navigation data sharing according to the present invention.

FIG. 10 is a schematic diagram illustrating a flow chart of a method for recording the state before the shutdown of the audio-visual system according to the present invention.

Detailed ways

Please refer to FIG. 2 to FIG. 5 together, wherein FIG. 2 shows a schematic block diagram of a partition independent playing and sharing system according to the present invention; FIG. 3 shows a block diagram of a partition independent playing and sharing system according to another embodiment of the present invention Block schematic diagram; FIG. 4 shows a combined schematic diagram of an audio-visual host according to the present invention; FIG. 5 shows a schematic diagram of an operation interface according to the present invention. As shown in FIG. 2 , the audio-visual zone independent playing and sharing system of the present invention is applied in a car, which includes: an audio-visual main unit 10 and several audio-visual sub-units 30 .

Wherein, the audio-visual host 10 has a microprocessor 19, a storage device 11 and a network interface 12, which can provide at least one audio-visual data playback service. In this embodiment, the audio-visual host 10 can provide playback services including : Music playback service, radio playback service, navigation service, digital TV playback service, video playback service, and photo playback service. Wherein, the network interface 12 can be a wireless network or a wired network, and when the network interface 12 is a wireless network, it can be Bluetooth (Bluetooth), 802.11x wireless local area network (WLAN), WiMax , Zigbee, or other similar technologies; when the network interface 12 is a wired network, it can be RJ-11, RJ-45/PoE, Power Line (HomePlug AV), USB cable, 1394 cable, MOST , IDB-1394 or other similar technologies.

The audio-visual sub-machine 30 has a digital audio-visual decoding device 34, a network interface 31, a display panel 32 (please refer to Figure 2) or an audio-visual output interface 35 (please refer to Figure 3) and an operation interface 33, wherein The audio-visual output interface 35 is, for example but not limited to, an AV terminal, S terminal, HDMI terminal, VGA terminal, RGB terminal or the like, which can be externally connected to an LCD display 36; and the operation interface 33 can be, for example but not limited to, a The remote controller, the screen touch device or the buttons are described by taking the remote controller as an example in this embodiment, but it is not limited thereto, and the operation interface 33 has at least a share button 331 and a play button 3332; The digital audio-visual decoding device 34 can be a high-speed microprocessor with software for digital audio-visual decoding or a decoding chip with a microprocessor and a special audio-visual decoding electronic circuit.

The audio-visual slave unit 30 can be connected to the audio-visual host 10 via the network interface 31; wherein, the network interface 31 can be a wireless network or a wired network, when the network interface 31 is a wireless network , which can be Bluetooth (Bluetooth), 802.11x wireless local area network (WLAN), WiMax, Zigbee, or other similar technologies; when the network interface 31 is a wired network, it can be RJ-11, RJ-45 /PoE, Power Line (HomePlug AV), USB cable, 1394 cable, MOST, IDB-1394 or other similar technology. In addition, the network interface 12 of the audio-visual main unit 10 and the network interface 31 of the audio-visual sub-unit 30 have the same network protocol. In this embodiment, a wired RJ-45/PoE network is used as an example for illustration. But not limited to this. Wherein, the display panel 32 is an LCD or other flat-panel display, which can be installed in the car's central control display or the rear end of the seat to facilitate users to watch. The audio-visual sub-machine 30 can also be a device having a digital audio-video decoding device 34 , a network interface 31 , an audio-video output interface 35 , an externally connected LCD display 36 and an operation interface 33 .

As shown in FIG. 4 , the audio-visual host 10 of the present invention further includes: a storage device 11 ; a housing 15 ; a printed circuit board 16 and a microprocessor 19 .

Wherein the casing 15 has an upper casing 151 and a lower casing 152, and the upper casing 151 and the lower casing 152 can form an accommodating space 153 and the front end of the upper casing 151 has an opening 1512, the The casing 15 is preferably made of a heat-conducting material, such as but not limited to metal aluminum formed by stamping, and the two sides of the upper casing 151 are further provided with a cooling fin 1513 to accelerate the heat dissipation of the casing 15 . In addition, the bottom of the lower housing 152 further includes a slot 1521, an exit button 1522 and a connecting plate 1523, wherein the slot 1521 and the exit button 1522 are exposed in the opening 1512, and the slot 1521 can be used for the storage When the device 11 is inserted, the exit button 1522 can be used to withdraw from the storage device 11. The connecting plate 1523 is located at the rear side of the slot 1521 and is fixed on the lower housing 152, and further has a connector 1524 for connecting with the storage device 11. The storage device 11 is connected.

The printed circuit board 16 is placed in the accommodating space 153 for supporting the microprocessor 19 .

The storage device 11 can be inserted into the accommodating space 123 through the opening 1512, and can store at least one digital audio-visual file; wherein the audio-visual file has JPEG, MPEG, H.264, WMV, MP3, WMA, map data or other formats.

The microprocessor 19 is placed on the printed circuit board 16 and coupled to the storage device 11 for controlling the operation of the audio-visual host 10 .

As shown in FIG. 5 , the operation interface 33 of the present invention has at least one share key 331 for providing or accepting sharing, several number keys 332 and other video and audio operation keys 333 , such as direction keys 3331 and play keys 3332 . The share button 331 can be used by the user to activate the digital content sharing mechanism of the present invention. When the sharing button 331 is pressed, a "Sharing" or similar prompt will appear on the display panel 32 or 36 of other audio-visual sub-machines 30, and other users can press it within a few seconds, for example, within 5 seconds. Its sharing key 331 is to accept the sharing of this playing service, if exceed specific time, for example 5 seconds do not press its sharing key 331, then this " sharing " (Sharing) or similar prompt can disappear, and this display panel 32 or 36 will maintain the content of its original service, please refer to the follow-up instructions for details.

Please refer to FIG. 6 and FIG. 7 together, wherein FIG. 6 shows a schematic flow diagram of a method for independent playing of car audio-visual data partitions according to the present invention; FIG.

As shown in Figure 6, the method for independent playing of automobile audio-visual data partitions of the present invention includes the following steps: providing an audio-visual host 10 capable of providing at least one audio-visual data sharing service item (step 1); providing several audio-visual sub-machines 30 ( Step 2); and when the user of the audio-visual sub-machine 30 presses the play button 3332, the audio-visual host 10 promptly transmits the digital audio-visual data to the audio-visual sub-machine 30 according to the user's instruction, by its digital audio-visual decoding device 34 After decoding the received digital audio-visual data into images and sounds, the display panel 32 or the audio-visual output interface 35 is externally connected to an LCD display 36 for playback, and different users can also broadcast in this way on their audio-visual sub-units 30 The audio-visual data that is the same as or different from other users can achieve the purpose of independently playing the audio-visual data on the audio-visual host 10 in different audio-visual sub-units 30 partitions (step 3).

In the step 1, an audio-visual host 10 is provided, which further has a microprocessor 19, a storage device 11 and a network interface 12, which can provide at least one audio-visual data sharing service item; wherein, the network interface 12 can Be a wireless network or a wired network, when the network interface 12 is a wireless network, it can be bluetooth (Bluetooth), 802.11x wireless local area network (WLAN), WiMax, Zigbee or other similar technologies; When the network interface 12 is a wired network, it can be RJ-11, RJ-45/PoE, Power Line (HomePlug AV), USB cable, 1394 cable, MOST, IDB-1394 or other similar technology . And the audio-visual data can be a video data, a photo data, a music data, a digital TV data or a broadcast data. In addition, the audio-visual host 10 further has a casing 15 ; a printed circuit board 16 ; a storage device 11 and a microprocessor 19 , and please refer to the above description for details.

In this step 2, several audio-visual sub-machines 30 are provided, which have a digital audio-visual decoding device 34, a network interface 31, a display panel 32 or an audio-visual output interface 35, which can be externally connected to an LCD display 36 and an operation interface 33 , and there is a play key 3332 on the operation interface 33; wherein, the network interface 31 can be a wireless network or a wired network, which has the same protocol as the network interface 12; the display panel 32 or audio-visual The output interface 35 is externally connected to the LCD display 36, such as but not limited to an LCD or other flat-panel display, which can be installed on the rear end of the car's central control display or seat to facilitate users to watch; the operation interface 33 can be a remote controller 1. The screen touch device or button, in this embodiment, the remote controller is used as an example to illustrate, but it is not limited to this, and the play button 3332 can be used by the user to start the car audio-visual data partition independent playback mechanism of the present invention .

As shown in Figure 8, the method for playing and sharing audio-visual data of the present invention can share the content of media audio-visual data currently being watched, such as movies, music, photos, radio broadcasts, digital TV, etc., with other users, and it includes the following steps: Provide an audio-visual host 10 (step 1); provide several audio-visual slaves 30 (step 2); user A presses the sharing key 331 (step 3); display panels 32 or external monitors 36 of other audio-visual slaves 30 respectively Show " share " or similar prompt (step 4); If the user of other audio-visual sub-machine 30 refuses this " share " prompt, then this " share " prompt will disappear after a specific time (step 5); And if Users of other audio-visual slave machines 30 accept the "share" prompt, then they can press the share button 331, and the audio-visual master will send the audio-visual data played by user A who proposes to share to the slave that accepts "share". machine, its display panel 32 or external display 36 promptly displays the same service information as the display panel 32 of the user A such as movies, music, photos, radio broadcasts or digital TV (step 6).

In this step 1, an audio-visual host 10 is provided, which has a microprocessor 19, a storage device 11 and a network interface 12, and can provide at least one sharing service such as video, music, photos, and digital TV broadcasting. ; Wherein, the network interface 12 can be a wireless network or a wired network, and when the network interface 12 is a wireless network, it can be Bluetooth (Bluetooth), 802.11x wireless local area network (WLAN), WiMax, Zigbee or other similar technologies; when the network interface 12 is a wired network, it can be R.J-11, RJ-45/PoE, PowerLine (HomePlug AV), USB cable, 1394 cable, MOST, IDB-1394 or other similar technology. In addition, the audio-visual host 10 further has a casing 15 ; a printed circuit board 16 ; a storage device 11 and a microprocessor 19 , and please refer to the above description for details.

In this step 2, several audio-visual sub-machines 30 are provided, which have a digital audio-visual decoding device 34, a network interface 31, a display panel 32 or an audio-visual output interface 35, which can be externally connected to an LCD display 36 and an operation interface 33 , and the operation interface 33 has a sharing key 331; wherein, the network interface 31 can be a wireless network or a wired network, which has the same protocol as the network interface 12; the display panel 32 or The audio-visual output interface 35 is externally connected to the LCD display 36, such as but not limited to an LCD or other flat panel display, which can be installed on the rear end of the car's central control display or seat to facilitate users to watch; the operation interface can be a remote controller 1. The screen touch device or button, in this embodiment, the remote controller is used as an example to illustrate, but it is not limited to this, and the sharing button 331 can be used by the user to start the sharing mechanism of the present invention such as video, music, Playback of photographs, radio or digital television broadcasts.

In the step 3, user A presses the sharing button 331 to activate the sharing mechanism of the present invention, so that other users can immediately watch the same video and audio broadcast as user A, such as videos, music, photos, radio or digital TV broadcasting .

In this step 4, "Sharing" or similar prompts will be displayed on the display panels 32 or external monitors 36 of other audio-visual sub-machines 30 to prompt other users whether they are willing to accept the sharing, so as to broadcast the same Content.

In the step 5, if the users of other audio-visual sub-machines 30 reject the "share" prompt, the "share" prompt will disappear after a specific time; wherein the specific time is, for example but not limited to, 5 seconds.

In this step 6, if the users of other audio-visual sub-units 30 accept the "share" prompt, they can press the share button 331, and the audio-visual main unit 10 will display the data such as videos, music, etc. that user A is displaying in step 3. Photos, radio or digital TV broadcasts are also transmitted to user A and the user who accepts the "sharing", and the display panel 32 or external display 36 displays the same image as user A's display panel 32 or external display 36. content.

As shown in Figure 9, the method for sharing navigation maps and data of the present invention includes the following steps: providing an audio-visual host 10 (step 1); providing several audio-visual slaves 30 (step 2); user A presses the share key 331 (step 3); on the display panel 32 or the external monitor 36 of other audio-visual sub-machines 30, "share" or similar prompts are displayed respectively (step 4); if the user of other audio-visual sub-machines 30 rejects the "share" prompt , then the "share" prompt will disappear after a specific time (step 5); The navigation map and data in use by the user A who proposes to share are sent to the handset 30 that accepts "sharing", and the display panel 32 or the external display 36 displays the same content as the display panel 32 of the user A. (step 6).

In this step 1, an audio-visual host 10 is provided, which has a microprocessor 19, a storage device 11 and a network interface 12, which can provide at least one shared service item such as road navigation; wherein, the network interface 12 can Be a wireless network or a wired network, when the network interface 12 is a wireless network, it can be bluetooth (Bluetooth), 802.11x wireless local area network (WLAN), WiMax, Zigbee or other similar technologies; When the network interface 12 is a wired network, it can be RJ-11, RJ-45/PoE, Power Line (HomePlug AV), USB cable, 1394 cable, MOST, IDB-1394 or other similar technology . In addition, the audio-visual host 10 further has a casing 15 ; a printed circuit board 16 ; a storage device 11 and a microprocessor 19 , and please refer to the above description for details.

In this step 2, several audio-visual sub-machines 30 are provided, which have a digital audio-visual decoding device 34, a network interface 31, a display panel 32 or an audio-visual output interface 35 that can be externally connected to an LCD display 36 and an operation interface 33, And there is a sharing key 331 on this operation interface 33; Wherein, this network interface 31 can be a wireless network or a wired network, and it has the protocol identical with this network interface 12; This one display panel 32 or audio-visual The output interface 35 is externally connected to the LCD display 36, such as but not limited to an LCD or other flat panel display, which can be installed in the car's central control display or the rear end of the seat to facilitate the user's viewing; the operation interface can be a remote controller, In this embodiment, a remote controller is used as an example for illustration, but not limited thereto, and the share button 331 can be used by the user to start the navigation map and data sharing of the present invention.

In the step 3, user A Zheng presses the sharing button 331 to activate the sharing mechanism of the present invention when using the navigation map, so that other users can watch the same navigation map and data as user A immediately.

In this step 4, the display panels 32/36 of the other audio-visual sub-machines 30 will respectively display "Sharing" (Sharing) or similar prompts to remind other users whether they are willing to accept the sharing so as to play the same content .

In the step 5, if the users of other audio-visual sub-machines 30 reject the "share" prompt, the "share" prompt will disappear after a specific time; wherein the specific time is, for example but not limited to, 5 seconds.

In this step 6, if the users of other audio-visual sub-units 30 accept the "share" prompt, they can press the share button 331, and the audio-visual main unit 10 will also simultaneously display the navigation map and data displayed by user A in step 3. The content sent to user A and the user who accepts the "share" will be displayed on the display panel 32/36 with the same content as the display panel 32/36 of user A.

Therefore, by the method for car navigation map sharing of the present invention, user A can be the driver of the vehicle and share its navigation data with other users; otherwise user A can also be other passengers, first plan the navigation route and send the results Share with drivers to assist drivers in route navigation, avoiding drivers to operate route search or planning while driving, so as to improve driving safety.

Please refer to FIG. 10 , which shows a schematic flow chart of the method for recording the state before the shutdown of the audio-visual system according to the present invention. As shown in the figure, the method for recording the state before the shutdown of the audio-visual system of the present invention includes the following steps: providing an audio-visual main unit 10 (step 1); providing several audio-visual sub-units 30 (step 2); the user presses the play Key 3332 requests the audio-visual data playback service to the audio-visual main unit 10; the audio-visual main unit 10 starts the audio-visual data playback service and starts a service monitoring, constantly records the playback status of the audio-visual sub-machine 30, and stores it in a storage device 11 (step 3) and when the audio-visual sub-machine 30 is turned off and then turned on, it will automatically request the audio-visual host 10 to continue the audio-visual data playback service from the last shutdown point of the audio-visual sub-machine 30, and the audio-visual host 10 will obtain the audio-visual sub-machine 30 from the monitoring record. The service monitoring record and continue to provide the audio-visual data playback service at the last shutdown point of the audio-visual sub-machine 30 according to the service monitoring record (step 4).

In this step 1, provide an audio-visual host 10, it has a microprocessor 19, a storage device 11 and a network interface 12, can provide at least one audio-visual data playback service item; Wherein, this network interface 12 can be A wireless network or a wired network, when the network interface 12 is a wireless network, it can be Bluetooth (Bluetooth), 802.11x wireless local area network (WLAN), WiMax, Zigbee, or other similar technologies; When the network interface 12 is a wired network, it can be RJ-11, RJ-45/PoE, Power Line (HomePlug AV), USB cable, 1394 cable, MOST, IDB-1394 or other similar technology . In addition, the audio-visual host 10 further has a casing 15 ; a printed circuit board 16 ; a storage device 11 and a microprocessor 19 , and please refer to the above description for details.

In this step 2, several audio-visual sub-machines 30 are provided, which have a digital audio-visual decoding device 34, a network interface 31, a display panel 32 or an audio-visual output interface 35 externally connected to the LCD display 36 and an operation interface 33, and There is a play key 3332 on this operation interface 33; Wherein, this network interface 31 can be a wireless network or a wired network, and it has the protocol identical with this network interface 12; This one display panel 32 or audio-visual output The interface 35 is externally connected to the LCD display 36 such as but not limited to an LCD or other flat panel display, which can be installed on the rear end of the car's central control display or seat to facilitate the user's viewing; the operation interface 33 can be a remote controller, On-screen touch devices or buttons.

In the step 3, the audio-visual main unit 10 starts a service monitoring during the audio-visual data playback service, continuously records the playback status of all audio-visual slave machines 30, and stores them in a storage device 11; wherein the storage device 11 is a permanent storage device, such as but not limited to the storage device 11 mentioned above.

In this step 4, when the audio-visual sub-machine 30 is turned off and then turned on again, it will automatically request the audio-visual host 10 to continue the audio-visual data playback service from the point where the audio-visual sub-machine 30 was shut down last time, and the audio-visual host 10 will obtain the audio-visual data from the monitoring record. The service monitoring record of the audio-visual sub-machine 30 and continue to provide the audio-visual data playback service at the last shutdown point of the audio-visual sub-machine 30 according to the service monitoring record.

Therefore, by the method of recording the state of the audio-visual system before shutdown, the audio-visual sub-unit 30 can be restarted after shutdown, and its display panel 32 will display the picture before shutdown and continue to play.

To sum up, the audio-visual sharing system and its method of the present invention use a wired or wireless network interface to transmit digital audio-visual files from the main unit to each sub-machine, so that users of each sub-machine can share with other users as needed. The media content they are viewing; in addition, the navigation data sharing method of the present invention allows the driver of the vehicle to share its navigation data with other users, and other users can also search and plan navigation data and pass the results to the driver Sharing, to improve the advantages such as the safety of driving, therefore can really improve the shortcoming of known car audio-visual playing device.

What is disclosed in the present invention is a preferred embodiment, and all partial changes or modifications derived from the technical idea of the present invention and easily deduced by those skilled in this technology all fall within the scope of the patent right of the present invention.

Claims (15)

1. audio-visual subregion independent play-out and share system is characterized in that it comprises:

One audio-visual main frame; Has a microprocessor; One storage device and a networking interface, its

provide at least one digital video-audio data to play service; And

Some audio-visual handsets; It has a digital audio-video code translator, a networking interface, a display floater or an audio-visual output interface and an operation-interface; It is connected to this audio-visual main frame via this networking interface, and has a play button on this operation-interface and share key;

So that this audio-visual handset individually, momentarily propose services request to this audio-visual main frame, and obtain the main frame related service, perhaps this audio-visual handset is shared other audio-visual handset of key invitation and is shared the performed service item of its display floater by pressing this;

When wherein this audio-visual handset play button was pressed, audio-visual main frame promptly can transmit the desired audiovisual materials of this audio-visual handset and give this audio-visual handset; Each audio-visual handset all has its independently digital audio-video code translator, is responsible for the audiovisual materials decoding back that audio-visual main frame is sent and is shown in display floater or audio-visual output interface, to reach the purpose of audio-visual subregion independent play-out.

2. audio-visual subregion independent play-out as claimed in claim 1 and share system is characterized in that, wherein this audio-visual main frame further comprises:

One housing, it has a upper shell and a lower house, and the front end that this upper shell and lower house form an accommodation space and this upper shell has an opening;

One printed circuit board (PCB) is to place this accommodation space, in order to carry following assembly;

One storage device is to be inserted in this accommodation space via this opening, supplies to store at least one digital audio-video file; And

One microprocessor is to place on this printed circuit board (PCB) and be coupled to this storage device, in order to control the running of this audio-visual main frame.

3. audio-visual subregion independent play-out as claimed in claim 2 and share system; It is characterized in that; Wherein the both sides of this upper shell further have a radiating fin to quicken the heat radiation of this housing, and this lower house then further comprises a slot, an exit button and a plate, and wherein this slot and exit button are to expose to this opening; This slot supplies this storage device to insert; This exit button then supplies to withdraw from this storage device, and this connecting plate is to be positioned at the rear side of this slot and to be immobilizated on this lower house, further have on it a connector for being connected of this storage device.

4. audio-visual subregion independent play-out as claimed in claim 1 and share system is characterized in that, wherein this storage device is the Winchester disk drive or the silicon chip machine of a dynamic plug.

5. audio-visual subregion independent play-out as claimed in claim 1 and share system is characterized in that, wherein this operation-interface is a remote controller, screen contactor control device or button.

6. audio-visual subregion independent play-out as claimed in claim 1 and share system is characterized in that, wherein the networking interface of the networking interface of this audio-visual main frame and audio-visual handset is all a Wi-Fi or a wired networking.

7. audio-visual subregion independent play-out as claimed in claim 6 and share system is characterized in that, wherein this Wi-Fi interface is to be bluetooth, 802.11x wireless local networking, WiMax or Zigbee; This wired networking interface is to be RJ-11, RJ-45/PoE, Power Line, USB cable, 1394 cables, MOST or IDB-1394.

8. audio-visual subregion independent play-out as claimed in claim 1 and share system; It is characterized in that; Wherein this display floater is to be a LCD or other flat-panel screens, and this audio-visual output interface is an AV terminal, S terminal, HDMI terminal, VGA terminal or RGB terminal.

9. audio-visual subregion independent play-out as claimed in claim 1 and share system; It is characterized in that, wherein this broadcast with share function service and further comprise: a music service, putting service of broadcast receiver broadcasting, a game services, a navigation Service, a DTV are play service, a movie service and a photo and are play and serve.

10. audio-visual subregion independent play-out as claimed in claim 1 and share system; It is characterized in that; Wherein can show the service item that a navigation map, a DTV, a film, a photo, a music, are played, the menu pattern of broadcast receiver broadcasting supplies the user to select desire to carry out through this operation interface on this audio-visual handset display floater or the external display, and share this service item with the user of other audio-visual handset through the key of sharing on this operation interface.

11. audio-visual subregion independent play-out as claimed in claim 1 and share system is characterized in that, wherein this digital audio-video code translator is that high speed microprocessor carries out digital audio-video decoding with software; Or microprocessor and have the coding chip of special electronic circuit with audio-visual decoding.

12. audio-visual subregion independent play-out as claimed in claim 2 and share system is characterized in that, wherein this digital audio-video file have JPEG, MPEG, H.264, WMV, MP3, WMA or map data.

13. automobile audiovisual materials are play the method for sharing, and it is characterized in that it comprises the following steps:

Provide like claim 1 described one an audio-visual main frame;

Provide some like claim 1 a described audio-visual handset;

Wherein the user of an audio-visual handset presses this and shares key be provided sharing that audiovisual materials play;

Show the prompting of " sharing " on the display floater of other audio-visual handset respectively;

If the user of other audio-visual handset refuses this and " shares " prompting, then should " sharing " point out behind a special time and will disappear; And

If the user of other audio-visual handset accepts this and " shares " prompting; Then press this and share key; Audiovisual materials during the audio-visual handset that this audio-visual main frame just will propose " sharing " is play are sent to the audio-visual handset that this acceptance " is shared " in the lump, promptly play the identical audiovisual materials of display floater of the audio-visual handset of " sharing " with this proposition on its display floater.

14. the method that the auto navigation map is shared is characterized in that it comprises the following steps:

Provide just like claim 1 a described audio-visual main frame;

Provide some like claim 1 a described audio-visual handset;

Wherein the user of an audio-visual handset presses this and shares key be provided sharing of navigation map;

Show the prompting of " sharing " on the display floater of other audio-visual handset respectively;

If the user of other audio-visual handset refuses this and " shares " prompting, then should " sharing " point out behind a special time and will disappear; And

If the user of other audio-visual handset accepts this and " shares " prompting; Then press this and share key; Navigation map during the audio-visual handset that audio-visual main frame just will propose " sharing " is used is sent to the handset that this acceptance " is shared " in the lump with data, promptly shows the identical navigation map data of display floater with the audio-visual handset of proposition " sharing " on its display floater.

15. the method for the preceding state of the audio-visual handset shutdown of record is characterized in that it comprises the following steps:

Provide like claim 1 described one an audio-visual main frame;

Provide some like claim 1 a described audio-visual handset;

The user of this audio-visual handset presses this play button and plays service to these audiovisual materials of this audio-visual host requests;

This audio-visual main frame begins audiovisual materials to be play service and starts a service monitoring, constantly notes down the broadcast state of this audio-visual handset, and is stored in a storage device; And

When starting shooting again after this audio-visual handset shutdown; From this audio-visual host requests of trend from last time this audio-visual handset shutdown point continue this audiovisual materials and play service, this audio-visual main frame is obtained the service monitoring record of this audio-visual handset and is continued to provide the audiovisual materials of this audio-visual handset shutdown last time point to play service according to this service monitoring record to this monitoring record.

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