Distributed service provider

• US 7,260,596 B1
• Filed: 09/07/2000
• Issued: 08/21/2007
• Est. Priority Date: 09/08/1999
• Status: Expired due to Fees

• Current Assignee: Sony United Kingdom Limited (Sony Group Corp.)
• Original Assignee: Sony United Kingdom Limited (Sony Group Corp.)
• Inventors: Zhou, Yiming
• Primary Examiner(s): Jaroenchonwanit; Bunjob
• Assistant Examiner(s): WIDHALM, ANGELA M
• Application Number:
  US09/656,969
• Time in Patent Office: 2,539 Days
• Field of Search: 705/51, 709/106, 709/229, 709/104, 709/225, 395/800, 712/30, 370/338, 710/6, 714/712, 713/201
• US Class Current: 709/200
• CPC Class Codes: G06F 9/505 considering the load
• CPC Class Codes: Y10S 707/99939 Privileged access

Abstract

A station for a network apparatus, which includes interconnected by a communication link, includes a network connection; a self assessment module operable to determine a current status of the station including a measure of the stations available resources; a trust list that includes a station identifier for each other station which is designated as trusted to perform tasks for the station; and a broadcast unit operable to transmit service requests to the network. The service requests are directed to each other station in the trust list and request each other station to perform a task. The station also includes an answer unit operable to receive service requests from the network and transmit an acceptance or refusal message in response to the service request. The acceptance or refusal is decided based on the current status of the station as determined by the self assessment module.

Claims

1. A station for a network apparatus, said network apparatus comprising said station and a plurality of other stations, all interconnected in a network by a communication link, said station comprising:

a network connection;

a self assessment module operable to determine a current status of said station,

wherein said current status is a measure of available hardware resources of said station, and

wherein said current status includes a determination of a dynamic status for said station based on current usage of said hardware resources of said station;

a trust list that includes a station identifier for each other station of said plurality of other stations which is designated as trusted to perform tasks for said station;

a broadcast unit operable to transmit service requests to said network connection and via said network, said service requests being directed to said each other station identified in said trust list and constituting a request to said each other station to perform a task for said station;

an answer unit operable to receive service requests via network through said network connection and, in response thereto, to transmit via network through said network connection an acceptance or refusal message in respect of said service request, said acceptance or refusal being decided based on said current status of said station, as determined by said self assessment module; and

a service requirement analysis module and a software resource repository in which a plurality of software modules are stored, said service requirement analysis module being operable to maintain said software resource repository by importing and exporting software modules to and from other stations having regard to demand in said station for such software modules.

2. The station according to claim 1, wherein said self assessment module is operable to determine a static status for said station based on said hardware resources of said station.

3. The station according to claim 1, further comprising a system security module operable to handle encryption between said station and each other trusted station.

4. The station according to claim 1, further comprising a task execution, monitoring and reporting module operable to broadcast to said network progress updates on tasks accepted by and being performed in said station on behalf of an other station.

5. The station according to claim 1, further comprising a task scheduler module arranged to monitor all tasks being performed in said station, including tasks initiated by said station for said station and tasks being performed in response to receipt of a service request from one of said other stations.

6. The station according to claim 1, wherein said station is further operable to broadcast messages to said network offering software modules held in said software resource repository to each other trusted station.

7. The station according to claim 1, further comprising a service/performance history learning analysis module operable to apply artificial intelligence to find task bottlenecks in said station and said other station, and to bring these to the attention of a network administrator if it can not solve them itself.

8. The station according to claim 1, further comprising a task failure management module, operable to transmit to said network a failure message in response to failure of said station successfully to complete a task being performed for one of said other stations.

9. The station according to claim 8, wherein said task failure management module is further operable to monitor for failure messages transmitted by one of its trusted stations and, in response thereto, to handle said failure message as said service request message for said failed task.

10. A network comprising a plurality of stations according to claim 1 interconnected by a communication link.

11. A network according to claim 10, wherein there is no central server for said network.

12. A network according to claim 10, wherein said network operates to a protocol that permits stations to be removed from and added to said network dynamically.

13. A method of distributing tasks in a network comprising a plurality of stations, all interconnected by respective network connections to a communication link, said method comprising:

transmitting a service request by a first station to its network connection and via said network, said service request being directed to a trusted sub-group of said stations identified by a trust list and specifying a task to be performed for said first station; and

receiving said service request by a second station, that is one of said trusted sub-group of stations, through its network connection and, in response thereto, transmitting via said network through its network connection an acceptance or refusal message in respect of said service request, said acceptance or refusal being decided having regard to said current status of said second station, as determined by a self assessment of said second stations,

wherein said self assessment is operable to determine available hardware resources of said second station and a dynamic status for said second station based on current usage of hardware resources of said second station;

carrying out said task specified in said service request by said second station and returning a service result to said first station; and

maintaining a software resource repository by importing and exporting software modules to and from other stations having regard to demand in said second station for such software modules.

14. A method according to claim 13, wherein said carrying out of said service request by said second station involves further distribution of said service by transmitting further service requests to a sub-group of said stations trusted by said second station.

15. Computer program storage medium storing program instructions, which when executed on a computer, cause the computer to perform steps for carrying out a method according to claim 13.