Contents conversion communication terminal, server system, and method

• US 7,720,888 B2
• Filed: 11/28/2005
• Issued: 05/18/2010
• Est. Priority Date: 12/08/2004
• Status: Expired due to Fees

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Kim, Woo-Sik, Kim, Sun-Ja, Kim, Heung-Nam, Kim, Do-Hyung
• Primary Examiner(s): LeRoux; Etienne P
• Assistant Examiner(s): Nguyen; Cindy
• Application Number:
  US11/288,811
• Publication Number:
  US 20060123064A1
• Time in Patent Office: 1,632 Days
• Field of Search: 707201-204
• US Class Current: 707/809
• 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 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, 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 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;

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;

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 to perform the contents conversion;

converting contents for the data file for visual optimization at the communication terminal based at least in part on a display size and resolution of the communication terminal;

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

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

2. The contents conversion method of claim 1, 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.

3. The contents conversion method of claim 1, 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.

4. The contents conversion method of claim 1, 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.

5. The contents conversion method of claim 1, further comprising receiving the contents conversion result from the communication terminal and storing the contents conversion result at the server system.