Version update method

• US 20050193387A1
• Filed: 02/11/2005
• Published: 09/01/2005
• Est. Priority Date: 02/12/2004
• Status: Active Grant

• Current Assignee: Pioneer Corporation
• Original Assignee: Pioneer Corporation
• Inventors: Ohkawa, Tomoki, Yamasaki, Toshiyuki, Uramatsu, Naoyuki, Tokunaga, Osamu, Negishi, Wataru
• Granted Patent: US 8,001,095 B2
• Time in Patent Office: Days
• US Class Current: 717/170
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57

Abstract

A version update method is provided for updating a version of a communication system application program installed in a plurality of terminals connected to a communication network and operating between at least two terminals. The method includes: starting communications between the two of the plurality of terminals; exchanging version information of the communication system application program between the two terminals communicating with each other and making a comparison between the version information held in one terminal and that in the other; making a request for transmitting the communication system application program file of the version not held in either terminal; and transmitting the communication system application program file of the specified version to the terminal making the request.

Claims

1. A version update method for updating a version of a communication system application program installed in a plurality of terminals connected to a communication network and operating between at least two terminals, the method comprising:

starting communications between the two of the plurality of terminals;

exchanging version information of the communication system application program between the two terminals communicating with each other and making a comparison between the version information held in one terminal and that in the other;

making a request for transmitting the communication system application program file of the version not held in either terminal; and

transmitting the communication system application program file of the specified version to the terminal making the request.

2. The version update method as claimed in claim 1, wherein the communication system application program is a program for a remote data conference or a videoconference operating between the plurality of terminals connected through the communication network.

3. A version update method for updating a version of a communication system application program installed in a plurality of terminals connected to a communication network and operating between at least two terminals, the method comprising:

starting communications between the two of the plurality of terminals;

exchanging version information of the communication system application program between the two terminals communicating with each other and making a comparison between the version information held in one terminal and that in the other;

starting the communication system application program with the version common to the two terminals among the versions held in the two terminals and executing the communication system application program;

making a request for transmitting the communication system application program file of the version not held in either terminal, after execution of the communication system application program; and

transmitting the communication system application program file of the specified version to the terminal making the request.

4. The version update method as claimed in claim 3, wherein the communication system application program is a program for a remote data conference or a videoconference operating between the plurality of terminals connected through the communication network.

5. A computer-readable program product for updating a version of a communication system application program installed in a plurality of terminals connected to a communication network and operating between at least two terminals, the program product for causing a computer to execute:

starting communications between the two of the plurality of terminals;

exchanging version information of the communication system application program between the two terminals communicating with each other and making a comparison between the version information held in one terminal and that in the other;

making a request for transmitting the communication system application program file of the version not held in either terminal; and

transmitting the communication system application program file of the specified version to the terminal making the request.

6. The program product as claimed in claim 5, wherein the communication system application program is a program for a remote data conference or a videoconference operating between the plurality of terminals connected through the communication network.

7. A computer-readable program product for updating a version of a communication system application program installed in a plurality of terminals connected to a communication network and operating between at least two terminals, the program product for causing a computer to execute:

starting communications between the two of the plurality of terminals;

exchanging version information of the communication system application program between the two terminals communicating with each other and making a comparison between the version information held in one terminal and that in the other;

starting the communication system application program with the version common to the two terminals among the versions held in the two terminals and executing the communication system application program;

making a request for transmitting the communication system application program file of the version not held in either terminal, after execution of the communication system application program; and

transmitting the communication system application program file of the specified version to the terminal making the request.

8. The program product as claimed in claim 7, wherein the communication system application program is a program for a remote data conference or a videoconference operating between the plurality of terminals connected through the communication network.