Presence information management system and presence information management server

• US 8,086,717 B2
• Filed: 03/31/2010
• Issued: 12/27/2011
• Est. Priority Date: 04/01/2005
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Miyata, Tatsuhiko, Kasuga, Kenji
• Primary Examiner(s): JACOBS, LASHONDA T
• Application Number:
  US12/662,124
• Publication Number:
  US 20100191802A1
• Time in Patent Office: 636 Days
• Field of Search: 709/223, 709/224, 709/227, 709/229, 709/203, 709/204, 709/217, 709/219, 709/206, 455/406, 455/414.1, 455/435.1, 455/518
• US Class Current: 709/223
• CPC Class Codes: H04L 67/54 Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users

Abstract

When starting subscribe for acquiring presence information, there is no need of acquiring an identifier of the presentity or an identifier of the group, which have been conventionally indispensable. There is provided a state information management system including a management server for managing state information on a plurality of terminals. Instead of specifying a presentity, a condition of the presentity, such as a value of presence, is specified for subscribing. For example, when subscribe is established by specifying the identical current position as a condition, subscribe for the user matched with the condition is automatically started and the presence can be acquired. When the presence of a partner or user himself/herself is changed to a different value, the presentity is automatically changed.

Claims

1. A state information management system comprising:

a server for managing state information on a plurality of terminals,

wherein the server includes;

a memory unit which stores the state information so as to correspond with at least one of information identifying the terminals, information identifying users of the terminals and information identifying a group to which the terminals or the users of the terminal belong;

a reception unit which receives a state information disclosure request from a first terminal among the plurality of terminals;

a control unit which extracts a state information extraction condition from the state information disclosure request; and

a transmission unit which transmits state information on one or a plurality of other terminals matched with the state information extraction condition among the state information stored in the memory unit, to the first terminal,

wherein when the number of other terminals matched with the state information extraction condition is increased or decreased, the transmission unit again transmits new state information on the one or more other terminals reflecting the increased or decreased number of other matching terminals to the first terminal.

2. A state information management system according to claim 1, wherein the state information extraction condition is a relative location condition in relation to said first terminal.

3. A state information management system according to claim 1, wherein the new state information is transmitted to the first terminal when the state information in the first terminal is updated.

4. A state information management system according to claim 1, wherein the new state information is transmitted to the first terminal when the state information in a terminal other than the first terminal is updated.

5. A state information management server for managing state information on a plurality of terminals,

wherein the server comprising:

a memory unit which stores the state information so as to correspond with at least one of information identifying the terminals, information identifying users of the terminals and information identifying a group to which the terminals or the users of the terminal belong;

a reception unit which receives a state information disclosure request from a first terminal among the plurality of terminals;

a control unit which extracts a state information extraction condition from the state information disclosure request; and

a transmission unit which transmits state information on one or a plurality of other terminals matched with the state information extraction condition among the state information stored in the memory unit, to the first terminal,

wherein when the number of other terminals matched with the state information extraction condition is increased or decreased, the transmission unit again transmits new state information on the one or more other terminals reflecting the increased or decreased number of other matching terminals to the first terminal.

6. A state information management server according to claim 5, wherein the state information extraction condition is a relative location condition in relation to said first terminal.

7. A state information management server according to claim 5, wherein the new state information is transmitted to the first terminal when the state information in the first terminal is updated.

8. A state information management server according to claim 5, wherein the new state information is transmitted to the first terminal when the state information in a terminal other than the first terminal is updated.