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Apparatus and method of wireless instant messaging

  • US 8,868,047 B2
  • Filed: 02/17/2011
  • Issued: 10/21/2014
  • Est. Priority Date: 09/19/2002
  • Status: Expired due to Term
First Claim
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1. A method of operating a presence information server comprising:

  • receiving an interest from an interested host that is a first client of the presence information server;

    receiving presence information regarding a wireless device that is a second client of the presence information server, wherein the presence information identifies a current location of the wireless device and a current activity state of a user of the wireless device, wherein the activity state is selected from the user currently looking, the user currently shopping and the user currently visiting;

    determining whether there is both (i) proximity between the wireless device'"'"'s current location and a location of the host and (ii) a match between the interest from the interested host and the current activity state of the user; and

    if both the proximity and the match exist, sharing information associated with the received presence information with the interested host.

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