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Determining the context of surroundings

  • US 7,133,663 B2
  • Filed: 12/20/2001
  • Issued: 11/07/2006
  • Est. Priority Date: 12/20/2001
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • detecting, short range wireless signals from at least one device, wherein said device comprises at least one of one or more context-determining devices and one or more subscriber units;

    recovering, from said detected short range wireless signals, information that conveys at least the presence of said at least one device;

    deriving contextual information from said recovered information; and

    forwarding said derived contextual information to a remote data collector using a long range wireless transmitter.

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