Contents conversion communication terminal, server system, and method

• US 20060123064A1
• Filed: 11/28/2005
• Published: 06/08/2006
• Est. Priority Date: 12/08/2004
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Kim, Woo-Sik, Kim, Heung-Nam, Kim, Do-Hyung, Kim, Sun-Ja
• Granted Patent: US 7,720,888 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/1794 Details of file format conversion

Abstract

A contents conversion communication terminal, a contents conversion supporting server system, and a contents conversion supporting method are provided. In a protocol structure of the communication terminal, a distribution file system layer supports a server system and at least one other communication terminal connected through a network to share a data file therebetween, an adaptation layer performs a contents conversion to use a data file in the communication terminal, the adaptation layer being placed on the distribution file system layer, and a virtual file system layer receives a system call message and transmits the system call message to the adaptation layer, the virtual file system layer being placed on the adaptation layer.

Claims

1. A protocol structure of a contents conversion communication apparatus, comprising:

a distribution file system layer for controlling a server system and at least one other communication terminal connected through a network to share data files therebetween;

an adaptation layer for performing a contents conversion of a data file appropriately to in the communication terminal, the adaptation layer being placed on the distribution file system layer; and

a virtual file system layer for receiving a system call message and transmitting the system call message to the adaptation layer, the virtual file system layer being placed on the adaptation layer.

2. A contents conversion communication terminal, comprising:

a distribution file system layer for supporting a server system and at least one other communication terminal connected through a network to share a data file therebetween;

an adaptation layer for performing a contents conversion to use a data file in the communication terminal, the adaptation layer being placed on the distribution file system layer; and

a virtual file system layer for receiving a system call message and transmitting the system call message to the adaptation layer, the virtual file system layer being placed on the adaptation layer.

3. The contents conversion communication terminal of claim 2, wherein the adaptation layer includes a terminal profile for storing at least one information from among ID information, and hardware and software information of the communication terminal;

a contents conversion module for converting a data file into a format available in the communication terminal; and

a controlling module for calling the contents conversion module and controlling a data file conversion based on the information stored in the terminal profile.

4. The contents conversion communication terminal of claim 3, wherein the terminal profile stores at least one information among type of the communication network connected to the communication terminal, bandwidth of an available channel, data rate, and data rate error.

5. The contents conversion communication terminal of claim 4, wherein the contents conversion module includes at least one conversion unit for performing a contents conversion according to a format of the data file.

6. A server system for supporting a distribution file system based contents conversion, comprising:

a distribution file system layer for supporting a server system and at least one other communication terminal connected through a network to share a data file therebetween;

an adaptation layer for performing a contents conversion to use a data file in the communication terminal, the adaptation layer being placed on the distribution file system layer; and

a virtual file system layer for receiving a system call message and transmitting the system call message to the adaptation layer, the virtual file system layer being placed on the adaptation layer.

7. The server system for supporting a distribution file system based contents conversion of claim 6, wherein the adaptation layer includes a terminal profile for storing at least one information from among ID information, and hardware and software information of the communication terminal;

a contents conversion module for converting a data file into a format available in the communication terminal; and

a controlling module for calling the contents conversion module and controlling a data file conversion based on the stored information.

8. The server system for supporting a distribution file system based contents conversion of claim 7, wherein the contents conversion module includes at least one conversion unit for performing a contents conversion according to a format of the data file.

9. The server system for supporting a distribution file system based contents conversion of claim 7, wherein the adaptation layer performs a contents conversion with reference to the communication network information stored at the terminal profile.

10. The server system for supporting a distribution file system based contents conversion of claim 9, wherein the adaptation layer stores the converted data file and conversion information thereof.

11. A contents conversion method of a server system sharing a data file with at least one communication terminal connected through a network, comprising:

generating a mount point, based on a distribution file system, for the at least one communication terminal;

receiving a data file transmission request through the mount point from the communication terminal;

determining whether the communication terminal is established to perform a contents conversion based on the communication terminal information;

converting contents for the data file and transmitting the converted data file to the communication terminal in the case of the communication terminal not being established; and

storing the data file and the conversion information thereof and sharing files of other communication terminals.

12. The contents conversion method of claim 11, wherein generating the mount point includes:

performing an authentication for the communication terminal;

receiving at least one type of information among terminal ID information, hardware information, software information, and communication network information from the communication terminal;

generating a list of data files accessible to the communication terminal and a list of directories stored at the corresponding file based on the received the terminal information; and

generating a data file access path by linking the generated list with one directory in the server system and transmitting the list and the access path information to the communication terminal.

13. The contents conversion method of claim 12, wherein the server system performs the data file conversion based on the hardware and software information of the corresponding communication terminal which requests a data file transmission.

14. The contents conversion method of claim 12, wherein the server system performs the data file conversion based on at least one information among type, available channel bandwidth, and data error rate information concerning the communication network with which the communication terminal is connected.

15. The contents conversion method of claim 11, further comprising transmitting a copy of the data file to the communication terminal so that the communication terminal performs a contents conversion in the case of the communication terminal being suitably established.

16. The contents conversion method of claim 15, further comprising extracting desired conversion unit information for converting contents based on the communication terminal information and transmitting the corresponding conversion unit to the communication terminal.

17. The contents conversion method of claim 15, further comprising receiving the contents conversion result from the communication terminal and storing the contents conversion result at the server system.

18. A contents conversion method sharing a data file between a server system and at least one other communication terminal connected through a network, comprising:

receiving an available file list and corresponding file access path information from the server system;

transmitting the data file through the received file access path;

performing a contents conversion for the received data file; and

transmitting the converted data file to the server system.

19. The contents conversion method of claim 18 further comprising receiving a conversion unit for converting the data file from the server system, and applying the conversion unit to an internal protocol structure.