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Presence IndicativeTerminal Device and Presence Managing System

  • US 20090292769A1
  • Filed: 10/17/2006
  • Published: 11/26/2009
  • Est. Priority Date: 10/21/2005
  • Status: Active Grant
First Claim
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1. A presence indicative terminal device, comprising:

  • a registration unit to register presence-enabled targets;

    an update information receiving unit to receive update information, which represents presence information of the presence-enabled targets being registered is updated;

    a display control unit to display predetermined presence-enabled targets among the presence-enabled targets being registered; and

    an updated presence information obtaining unit to judge as to whether the presence information of the presence-enabled targets to be displayed by the display control unit should be updated based on the update information and obtain updated presence information of the presence-enabled targets of which presence information is judged to be updated.

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