KR100774930B1 - Mobile communication terminal, system and content sharing method - Google Patents

Abstract

The present invention provides a method, a mobile communication terminal, and a system for allowing users to easily share content.

The transmitting-side mobile communication terminal according to the present invention includes a storage unit for storing content, and a shared middlelet unit for recording the information of the content in the content list including the content list and sharing the content. In addition, the receiving side mobile communication terminal, a shared middlelet unit for downloading the corresponding content from the terminal in the content list containing the list of shared content, and the digital right management (DRM) processing unit for checking whether the downloaded content is abnormal It includes.

Description

Mobile communication terminal, system, and method for sharing contents}

1 is a diagram illustrating a network configuration for sharing content in a Java environment according to an embodiment of the present invention.

2 is a conceptual diagram illustrating a platform structure of the mobile communication terminal shown in FIG. 1.

3 is a flowchart illustrating a middlelet installation process according to an embodiment of the present invention.

4 is a flowchart illustrating a process of downloading shared content according to an embodiment of the present invention.

The present invention relates to a mobile communication terminal, and more particularly, to a method of sharing content, a terminal, and a system supporting the same.

In recent years, as the functions of mobile communication terminals are diversified, SMS messages, phone books, schedule management, calculators, telephone books, in addition to voice call processing, which are the functions of mobile communication terminals, Along with additional functions such as games, functions for implementing multimedia are being adopted.

However, since mobile communication terminals are commonly used, there is a desire to share the contents stored in the terminals. The proposed method to solve this problem was to insert software modules into NATIVE terminal.

In this case, each terminal manufacturer has to implement a separate, not only takes a lot of time and manpower, but also causes a copyright problem due to indiscriminate sharing.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a method, a mobile communication terminal, and a system for enabling users to easily share content.

The present invention also provides a method, a mobile communication terminal, and a system for preventing copyright infringement due to indiscriminate sharing when sharing contents.

In order to achieve the above object, the present invention provides a mobile communication side including a storage unit for storing the content, and a shared middlelet unit for recording the information of the content in the content list containing the content list and sharing the content. Provide a terminal.

In addition, the receiving side mobile communication terminal including a shared middlelet unit for downloading the corresponding content from the terminal in the content list containing the list of shared content, and a digital right management (DRM) processing unit for checking whether the downloaded content is abnormal To provide.

In this case, the mobile communication terminal may further include a storage unit for storing the checked content.

In addition, the shared middlelet is characterized in that it can be received in the form of a MIDlet program.

On the other hand, the present invention, receiving the content information from the first terminal to create a content list and share the content, and transmitting the content list to the second terminal as the second terminal requests the content list And downloading the corresponding content from the first terminal to the second terminal as the corresponding content is selected.

In this case, the method may further include checking whether the downloaded content is abnormal, and if there is no abnormality, storing the downloaded content.

In this case, the content may be transmitted by wire or wirelessly, and the content list may include an IP address of the corresponding terminal.

In addition, the content sharing is characterized by using a peer to peer (P2P).

On the other hand, the present invention provides a system comprising a mobile communication terminal of claim 1 or claim 2, a shared server for transmitting a content information to a communication network or a content server receiving content information and having a content list.

Therefore, the content list is provided by the server and the content transmission uses the P2P method, so that users of the mobile communication terminal period can easily share the content. In addition, by limiting the content by using the DRM when sharing the content has the effect of preventing indiscriminate sharing.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment according to the present invention.

1 is a diagram illustrating a network configuration for sharing content in a Java environment according to an embodiment of the present invention. Referring to FIG. 1, the network configuration includes a shared server 110, a communication network 120, and mobile communication terminals 130 and 140.

The shared server 110 is connected to the communication network 120 and has a content stored in the mobile communication terminals 130 and 140 and a list of IP (Internet Protocol) addresses of the terminals 130 and 140. Of course, for this purpose, the shared server 110 may constitute a database 111 in the server. Table 1 constituting the database 111 is shown in Table 1.

IP address of the terminal Content 10.10.10.1 Content 1 10.10.10.1 Content 5 10.10.10.2 Content 4 10.10.10.2 Content6

The IP address of the terminal is a unique address for distinguishing the terminals 130 and 140. That is, for example, the terminal 130 has an IP address of 10.10.10.1, and the terminal 140 has an IP address of 10.10.10.2. Of course, it is also possible to configure a separate database server that manages only the database and connect the server to the shared server 110. In addition, the shared server 110 is preferably configured as a WAP (Wireless Application Protocol) server. In addition, the shared server 110 may be provided with a shared MIDlet program to allow the terminals to share content among the terminals so that the shared MIDlet program can be downloaded to the terminal.

The communication network 120 includes a base station, a base station controller (BSC), a home location register (HLR), a visit location register (VLR), and a mobile communication switching center (Mobile). Switching Center (MSC), etc. Since these components are already well known, additional descriptions will be omitted for easy understanding of the present invention.

In addition, in FIG. 1, the terminals 130 and 140 are connected to the communication network 120 using wireless communication. However, the terminals 130 and 140 may be connected to the communication network 120 using satellite communication (not shown). In addition, the mobile communication network 120 may be a communication network such as a global system for mobile communication (GSM) network, a universal mobile telecommunications system (UMTS) network, a general packet radio service (GPRS) network, or the like, and a wireless LAN network is also possible. .

The mobile communication terminals 130 and 140 include shared MIDlets 131 and 141 for accessing the shared server 110 through the communication network 120 and storage units 132 and 142 for storing contents. The shared MIDlets 131 and 141 are tools for sharing, downloading, and managing content when a user installs a program called a shared MIDlet.

In addition, the terminal 130, 140 is configured with a browser (Browser) to search for information by accessing the wireless Internet, WAP (Wireless Application Protocol), ME (Mobile Explorer), Stinger, UP (Unwired Planet) browser, i -mode, Binary Runtime Environment for Wireless (BREW), and the like. Therefore, the user can access the shared server 110 using a browser.

The storage units 132 and 142 may be configured as a storage device such as a flash memory, a RAM, an electrically erasable programmable read only memory (EEPROM), or the like. The storage units 132 and 142 store the contents described in Table 1. That is, the content 130 and the content 5 are stored in the terminal 130, and the content 4 and 6 are respectively stored in the terminal 140.

The content may be a picture, a video, or a music file directly taken or downloaded by the terminal user. Therefore, it is preferable to allow unlimited sharing of pictures taken by the user and to share the content only when the user is allowed in the case of content having copyright.

2 is a conceptual diagram illustrating a platform structure of the mobile communication terminal shown in FIG. 1.

As a platform according to an embodiment of the present invention, it is preferable to use a Java 2 Micro Edition (J2ME) platform. J2ME platform is characterized by a structure that can satisfy the unity and diversity of the platform by defining a profile that can accommodate the functions of each device and user requirements. J2ME consists of Java Virtual Machine (JVM) and Core Application Programming Interfaces (APIs). Profiles are libraries of higher classes and standard API sets. Therefore, MIDlets of various functions are used.

Accordingly, referring to FIG. 2, the shared MIDlet 210 is installed, managed, and operated by a Java Application Manager (JAM) as a MIDP (Mobile Information Device Profile) application. JAM is a Java Application Manager that manages applications on the CLDC / MIDP platform.

Therefore, JAM has a function of downloading, installing, upgrading, deleting, and executing the shared MIDlet 210. The shared MIDlet 210 includes startApp (), pauseApp (), and destroyApp () similarly to an applet to handle execution, stop, and termination. Therefore, file sharing, transmission, and search are possible.

The MIDP 230 is a profile made for a specific device in the CLDC 240 and mainly consists of a user interface (UI) of the terminal.

CLDC 240 defines a basic set of application programming interfaces. That is, the CLDC 240 executes the device in limited memory when coupled with the profile of the MIDP 230, and executes power processing, input / output, networking, and core Java libraries (java.lang. *, Java. util. *), graphics capability processing, and so on.

In addition to the MIDP 230, the OEM class 220 is configured to enable the shared MIDlet 210 to implement DRM (Digital Right Management) in order to limit the sharing of content according to an embodiment of the present invention. The OEM class 220 is a separate class that enables the MIDlet to use the support not included in the Java specification.

KVM 250 is a virtual machine (Virtual Machine), and performs a function to run Java in the mobile communication terminal. Therefore, it is system software that executes class files with compiled Java executable code. That is, software that acts as an interface between binary code and a microprocessor (or hardware platform). Therefore, the KVM 250 transmits a command executed by the shared MIDlet 210 to the native OS 260 using the native operating system (260). The native OS 260 includes an OS used for a terminal and various device libraries. Native OSs include programs such as Symian, Rex, and EOS.

The DRM processing unit 270 performs a function of processing content download, usage control, and management. In other words, by limiting the content sharing to prevent indiscriminate sharing. DRM is Digital Rights Management. Contents Provider (SP) / SP (Service Provider) that provides content in a new way of selling, distributing, and consuming content can be previewed, limited in number of usage or expiration dates, and Usage rules can be applied to allow various business models, such as subscriptions, content downloads, or streaming services.

There are three contents delivery methods using dual DRM. Forward lock, combined delivery with which content and rights objects are packaged together, and content and rights object to different devices through different channels. There is a separate delivery method.

3 is a flowchart illustrating a middlelet installation process according to an embodiment of the present invention. Referring to FIG. 3, the terminal user executes a swap browser to access the sharing server 110 shown in FIG. 1 (step S310). Of course, in order to access the shared server 110, there may be an authentication process requiring an ID and password. This authentication process is already well known, so further description will be omitted.

Using the swap browser, the user moves to the shared middlelet (MIDlet) down page (step S320). To do this, the user accesses the wireless Internet through the terminal and browses from the access screen.

The shared middlelet is downloaded from the shared middlelet down page (step S330). That is, when the user selects the download of the shared middlelet from the downpage, the sharing server 110 transmits the shared middlelet program to the corresponding terminal.

When the transmission of the shared middlelet is completed, the shared middlelet is installed (step S340). Of course, the shared middlelet is not installed as it is downloaded, but can be selectively installed by the user.

The above-described process describes that the user accesses a server using a terminal to download a shared middlelet, but an embodiment of the present invention is not limited thereto. That is, it is possible to install in advance from the terminal manufacturing, it is also possible to connect to a personal computer and to receive and install from the computer.

4 is a flowchart illustrating a process of downloading shared content according to an embodiment of the present invention. Referring to FIG. 4, the terminal user executes the shared middlelet installed according to the flowchart shown in FIG. 3. Execution method can be selected by using specific key button or menu method. That is, if My games & apps is configured in the upper menu, and there is a "shared middlelet" as a list in the lower menu, it is selected.

At this time, it is preferable to check whether the user is a legitimate user by performing an authentication process while the "shared middlelet" is executed. That is, the ID and password are input (step S405).

When the login process is performed, the IP address of the terminal and the content list of the storage unit 132 shown in FIG. 1 are stored in the sharing server 110. Of course, with this, the user can check the content list that other users have. To this end, the shared server 110 transmits the IP address and the content list of the terminal stored in the database 111 to the user terminal.

The terminal user searches the displayed content list (step S410). The content list preferably displays a list of the terminal currently being accessed, but is not limited thereto. If the user has logged in, the content list may be displayed.

In the case of a user who is registered in the content list in the server but does not currently perform the middlelet, the server may ask whether to allow the content to be transmitted by executing the middlelet by pushing.

The user selects and downloads the corresponding content from the content list (step S420). Of course, at this time, the sharing server 110 shown in FIG. 1 provides only a content list and actual transmission is performed between the corresponding terminals. In other words, the P2P method is used.

For example, referring to the drawing shown in FIG. 1, when the user of the terminal 130 selects "content 4 112" from the content list in the sharing server 110, the user has "content 4 112". The terminal 140 transmits the corresponding content. That is, a channel is formed between the terminal 130 and the terminal 140 to transmit the content. Of course, it is preferable to use the IP address method.

When the download of the corresponding content is completed, the DRM processing unit 270 shown in FIG. 2 checks whether the downloaded content is abnormal (step S430). That is, as described above, in order to prevent indiscriminate sharing of the content, a process of checking whether the content is abnormal is required. For example, a process of checking a right object of a content and checking a valid time / download count and the like is performed.

As a result of the check, if there is no abnormality in the downloaded content, the downloaded content is stored in the storage units 132 and 142 shown in FIG. 1 (step S440). On the contrary, if there is an error in the downloaded content, the DRM processing unit 270 deletes the downloaded content (step S450).

Meanwhile, in one embodiment of the present invention, the content is downloaded from the corresponding terminal using the P2P method, but it is also possible to receive the data through a personal computer (PC). In other words, by connecting a mobile communication terminal and a personal computer using a serial cable, USB cable, Bluetooth, it may be to transfer the contents stored in the other terminal to the mobile communication terminal.

In addition, although an embodiment of the present invention described as sharing content between connected terminals, it may be possible to form a group so that content sharing is possible only between specific group members.

As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to a specific Example, If the person who acquired the ordinary knowledge in this technical field, without departing from the range of this invention, It should be understood that many modifications and variations are possible. Therefore, the protection scope of the present invention will be preferably interpreted by the appended claims.

As described above, according to the present invention, the content list is provided by the server, and the content is transmitted by using the P2P method, so that users of the mobile communication terminal period can easily share the content.

In addition, by limiting the content by using the DRM when sharing the content has the effect of preventing indiscriminate sharing.

Claims (13)

A storage unit for storing contents; And The information of the stored content is transmitted to a server through a network to be shared as a list on the server, and if there is a request for transmission of the shared content from another terminal through the server, the storage corresponding to the shared content. A control unit which controls to transmit the corresponding content of the unit to the other terminal directly; Mobile terminal comprising a. delete The method of claim 1, A sharing middlelet for transmitting the information of the content to the server so as to share the content with the server through the network, or receiving a list of the shared content from the server; Mobile terminal, characterized in that it further comprises. The method of claim 3, wherein The shared middlelet, characterized in that for receiving the shared content corresponding to the list selected by the user in the list of shared content in the server directly from the counterpart terminal. The method of claim 3, wherein The shared middlelet includes a mobile information device profile (MIDP) application that performs file sharing, transmission, and retrieval. The method of claim 3, wherein Additionally includes a Java Application Manager (JAM) to manage applications on the CLDC / MIDP platform, And the JAM downloads, installs, upgrades, deletes, and executes the shared middlelet. The method of claim 1, The storage unit, characterized in that for storing the shared content received directly from the counterpart terminal. The method of claim 6, The controller may display the list of the shared content received from the server through the network through the JAM. Transmitting the information of the stored content to the server through the network such that the content stored therein is shared with the server through the network; Requesting the server to transmit the shared content; And Directly receiving the shared content from a terminal storing the shared content; Content sharing method of a mobile terminal comprising a. The method of claim 9, Sending to the server, requesting the transmission and directly receiving the transmission, A content sharing method of a mobile terminal, characterized in that performed through a sharing middlelet including a mobile information device profile (MIDP) application that performs file sharing and transmission and retrieval. The method of claim 9, The directly receiving may include storing the shared content directly received in a storage unit. The method of claim 9, The directly receiving may include receiving the shared content corresponding to the list selected by the user from the list of the shared content in the server, directly from the terminal. The method of claim 9, The requesting of the transmission may include displaying a list of the shared content received from the server through the network, and requesting the server to transmit the shared content selected by the user from the displayed list of the shared content. Content sharing method of a mobile terminal, characterized in that.

Images