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Relay server, relay communication system, and communication device

  • US 8,005,961 B2
  • Filed: 11/23/2007
  • Issued: 08/23/2011
  • Est. Priority Date: 11/24/2006
  • Status: Active Grant
First Claim
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1. A relay server that is connected to a LAN and that can communicate with a relay server of a different LAN, the relay server comprising:

  • an account information registering unit including hardware and software that stores account information including information on client terminals connected to the LAN;

    a relay group information registering unit that stores relay group information including information on a group of relay servers permitting access to each other; and

    a shared resource information registering unit that stores shared resource information including information on resources and information on the client terminals sharing the resources;

    whereinwhen an operation command for a resource, which can be operated by a client terminal connected to the different terminal, is received from the client terminal stored in the account information registering unit on the basis of the shared resource information, the operation of the resource is relayed on the basis of the relay group information;

    the shared resource information includes information indicating essences of the resources, information on owner client terminals which can operate the essences of the resources, and information on user client terminals which can indirectly operate the essences of the resources through the owner client terminals; and

    the relay server further comprises;

    a terminal selecting unit that selects the owner client terminal of a resource on the basis of the shared resource information when receiving an operation command for the resource, which can be operated by the client terminal connected to the different LAN, from the user client terminal stored in the account information registering unit; and

    an operation command transmitting unit that selects a relay server connected to the same LAN as the selected owner client terminal is connected on the basis of the relay group information and that transmits the operation command for the resource to the owner client terminal through the selected relay server.

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