DATA SYNCHRONIZATION SYSTEM

• US 20110320635A1
• Filed: 01/25/2010
• Published: 12/29/2011
• Est. Priority Date: 03/18/2009
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Araki, Takuya
• Granted Patent: US 9,218,436 B2
• Time in Patent Office: Days
• US Class Current: 709/248
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G06F 16/9574 of access to content, e.g. by caching
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

While a server (110) that executes a first web application program that accomplishes a web application that provides a service over the Internet so as to provide the service is not connected to a client (100) that receives the service, the client (100) executes a second web application program that accomplishes a web application, records a procedure in which the client (100) has executed the second application program, and transmits the recorded procedure to the server (110) just after the client (100) and the server (110) are connected and then the server (110) executes the first web application based on the procedure transmitted from the client (100).

Claims

1. A data synchronization system comprising:

a server that executes a first web application program that accomplishes a web application that provides a service over the Internet so as to provide said service; and

a communication device that receives the service that the server provides,

wherein said communication device has a second web application program that accomplishes said web application, executes said second web application program while said communication device is not connected to said server, records a procedure in which said communication device has executed said second web application program, and transmits said recorded procedure to said server just after said communication device is connected to said server, and

wherein said server executes said first web application program based on the procedure transmitted from said communication device.

2. The data synchronization system as set forth in claim 1,

wherein said communication device has a web browser and a web server, said web server executes said second web application program as said web browser requests said web server to do so while said communication device is not connected to said server, when said web server executes said second web application program, said web server records a data sequence and a chronological order of the data sequence that said web server supplies to said second web application program as said procedure, and just after said communication device is connected to said server, said communication device transmits said recorded data sequence and the chronological order of the data sequence to said server, and

wherein said server executes said first web application program based on the data sequence and the chronological order of the data sequence transmitted from said communication device.

3. The data synchronization system as set forth in claim 2,

wherein said communication device executes a CGI (Common Gateway Interface) program as said second web application program, and

wherein said server executes a CGI program as said first web application program.

4. The data synchronization system as set forth in claim 2,

wherein said communication device also records session identification information that is generated in said second web application program when said second web application program is executed and that identifies a session and transmits said recorded session identification information to said server just after said communication device is connected to said server, and

wherein said server executes said first web application program based on the session identification information transmitted from said communication device.

5. The data synchronization system as set forth in claim 3,

wherein said communication device also records session identification information that is generated in said CGI program when said CGI program is executed and that identifies a session and transmits said recorded session identification information to said server just after said communication device is connected to said server, and

wherein said server executes said CGI program based on the session identification information transmitted from said communication device.

6. A server that executes a web application program that accomplishes a web application that provides a service over the Internet so as to provide said server, comprising:

a reproduction executing section that executes said web application program based on a procedure transmitted from a communication device that receives the service that the server provides.

7. The server as set forth in claim 6,

wherein said reproduction executing section executes said web application program based on a data sequence and a chronological order of the data sequence transmitted from said communication device.

8. The server as set forth in claim 7,

wherein said reproduction executing section executes a CGI (Common Gateway Interface) program as said web application program.

9. The server as set forth in claim 7,

wherein said reproduction executing section executes said web application program based on session identification information that is transmitted from said communication device and that identifies a session.

10. The server as set forth in claim 8,

wherein said reproduction executing section executes said CGI program based on session identification information that is transmitted from said communication device and that identifies a session.

11. A communication device that receives a service from a server that accomplishes a web application that provides the service over the Internet, comprising:

a web application program that accomplishes said web application;

an input recording section that records a procedure of said web application program executed while said communication device is not connected to said server; and

a communication section that transmits the procedure recorded in said input recording section to said server just after said communication device is connected to said server.

12. The communication device as set forth in claim 11, comprising:

a web browser; and

a web server,

wherein said web server executes said web application program as said web browser requests said web server to do so while said communication device is not connected to said server,

wherein said input recording section records a data sequence and a chronological order of the data sequence that said web server supplies to said web application program as said procedure when said web server executes said web application program, and

wherein said communication section transmits the data sequence and the chronological order of the data sequence recorded in said input recording section to said server just after said communication device is connected to said server.

13. The communication device as set forth in claim 12,

wherein said web server executes a CGI (Common Gateway Interface) program as said web application program.

14. The communication device as set forth in claim 12,

wherein said input recording section also records session identification information that is generated in the web application program when said web application program is executed and that identifies a session, and

wherein said communication section transmits the session identification information recorded in said input recording section to said server just after said communication device is connected to said server.

15. The communication device as set forth in claim 13, comprising:

a session ID recording section that records session identification information that is generated in said CGI program when said CGI program is executed and that identifies a session,

wherein said communication section transmits the session identification information recorded in said session ID recording section to said server just after said communication section is connected to said server.

16. A data synchronization method that synchronizes data between a server that executes a first web application program that accomplishes a web application that provides a service over the Internet so as to provide said service and a communication device that receives the service that the server provides, comprising:

a process that causes said communication device to execute a second web application program that accomplishes said web application while said communication device is not connected to said server;

a process that causes said communication device to record a procedure in which said communication device has executed said second web application program while said communication device is not connected to said server;

a process that causes said communication device to transmit said recorded procedure to said server just after said communication device is connected to said server; and

a process that causes said server to execute said first web application program based on the procedure transmitted from said communication device.

17. The data synchronization method as set forth in claim 16, comprising:

a process that causes a web server that said communication device has to execute said second web application program as said web browser that the communication device has requests said web server to do so while said communication device is not connected to said server;

a process that causes said communication device to record a data sequence and a chronological order of the data sequence that said web server supplies to said second web application program as said procedure when said web server executes said second web application program;

a process that causes said communication device to transmit said recorded data sequence and the chronological order of the data sequence to said server just after said communication device is connected to said server, and

a process that causes said server to execute said first web application program based on the data sequence and the chronological order of the data sequence transmitted from said communication device.

18. The data synchronization method as set forth in claim 17, comprising:

a process that causes said communication device to execute a CGI (Common Gateway Interface) program as said second web application program; and

a process that causes said server to execute a CGI program as said first web application program.

19. The data synchronization method as set forth in claim 17, comprising:

a process that causes said communication device to also record session identification information that is generated in said second web application program when said second web application program is executed and that identifies a session;

a process that causes said communication device to transmit said recorded session identification information to said server just after said communication device is connected to said server; and

a process that causes said server to execute said first web application program based on the session identification information transmitted from said communication device.

20. The data synchronization method as set forth in claim 18, comprising:

a process that causes said communication device to also record session identification information that is generated in said CGI program when said CGI program is executed and that identifies a session;

a process that causes said communication device to transmit said recorded session identification information to said server just after said communication device is connected to said server; and

a process that causes said server to execute said CGI program based on the session identification information transmitted from said communication device.

21-30. -30. (canceled)