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Communicating information describing activity of computer system users among computer system users

  • US 9,584,460 B2
  • Filed: 04/04/2014
  • Issued: 02/28/2017
  • Est. Priority Date: 12/14/1999
  • Status: Expired due to Term
First Claim
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1. A computer-implemented method comprising:

  • receiving, at a server, a message from a mobile computing device associated with a sender, the message including location information indicating a physical location of the sender at a time when the message was sent to the server;

    determining the sender from the received message;

    identifying the physical location of the sender from the received message;

    determining whether access to the physical location of the sender has a first type or has a second type;

    determining one or more users authorized by the sender to access the physical location of the sender if the event is indicated to have the first type; and

    communicating a message to one or more mobile computing devices associated with each of the determined one or more users, the message including the physical location of the sender.

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