Presence information management system, presence server device, gateway device and client device
First Claim
1. A presence server device managing presence information of a plurality of presentities, comprising:
- a delegating unit sending delegating notification of presence information management function related to at least one of the plurality of presentities, to another device becoming a delegatee of the presence information management function.
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Accused Products
Abstract
The present invention provides a presence information management system, a presence server device, a gateway device and a client device, which notify of presence information in realtime while restraining communications traffic. The presence server device managing presence information of a plurality of presentities, comprises a delegating unit sending delegating notification of presence information management function related to at least one of the plurality of presentities, to another device becoming a delegatee of the presence information management function. The gateway device comprises a managing unit managing presence information of a presentity, and a control unit performing control so that, when receiving the delegating notification of the presence information management function about at least one of the plurality of presentities from a presence server, the managing unit is executed with respect to the function-delegated presentity.
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Citations
15 Claims
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1. A presence server device managing presence information of a plurality of presentities, comprising:
a delegating unit sending delegating notification of presence information management function related to at least one of the plurality of presentities, to another device becoming a delegatee of the presence information management function. - View Dependent Claims (2, 3)
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4. A gateway device comprising:
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a managing unit managing presence information of a presentity; and a control unit performing control so that, when receiving delegating notification of presence information management function about at least one of a plurality of presentities from a presence server managing the presence information of the plurality of presentities, wherein the managing unit is executed with respect to the function-delegated presentity for which the presence information management function is delegated. - View Dependent Claims (5, 6)
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7. A client device providing presence information of a self-device, comprising:
a change notifying unit transmitting, when receiving notification purporting that a server function of managing the presence information provided from the client device itself is delegated, presence information changing notification to a device to which the server function is delegated.
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8. A client device provided with presence information of another client device, comprising:
a notification receiving unit receiving, when receiving notification purporting that a server function of managing presence information of a client device being requested by the self-device is delegated, presence notification of the client device being requested by the client device itself from a delegatee device to which the server function is delegated.
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9. A presence information management system including a first presence server and a second presence server managing presence information of a presentity so as not to be overlapped with each other,
the presentity comprising: -
a request transmitting unit transmitting, when starting providing presence information of the presentity itself, a registration request for using presence service to the second presence server that should manage the presence information of the presentity itself, the second presence server comprising; a managing unit starting, when receiving the registration request for using the presence service, management of the presence information of the presentity becoming a sender of the registration request; and a start notifying unit notifying the first presence server that the second presence server itself starts the management of the presence information of the presentity, the first presence server comprising; a retaining unit retaining information showing that the second presence server starts the management of the presence information of the presentity. - View Dependent Claims (10, 11)
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12. A gateway device comprising:
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a request receiving unit receiving a plurality of presence disclosure requests with respect to the same presentity from a plurality of watchers; a transferring unit transferring, to a presence server, at least one of the plurality of presence disclosure requests received by the request receiving unit as a presence disclosure request from a virtual watcher associated with the plurality of watchers; and a transmitting unit transmitting, when receiving presence information changing notification to the virtual watcher, the received presence information changing notification respectively to the plurality of watchers associated with the virtual watcher. - View Dependent Claims (13)
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14. A presence server device comprising:
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a receiving unit receiving a presence disclosure request from a virtual watcher with respect to a predetermined presentity; and a transmitting unit transmitting, when receiving presence information changing notification from the predetermined presentity, the received presence information changing notification to the virtual watcher. - View Dependent Claims (15)
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Specification