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Device detection

  • US 8,899,477 B2
  • Filed: 06/02/2010
  • Issued: 12/02/2014
  • Est. Priority Date: 05/05/2006
  • Status: Active Grant
First Claim
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1. A method comprising:

  • detecting by a receiver a first signal produced by a device associated with a first person, the device comprising a mobile phone, PDA, computer, or mini-computer, the first signal being unique to the device associated with the first person;

    detecting by the receiver a second signal produced by a device associated with a second person, the device associated with the second person comprising a mobile phone, PDA, computer, or mini-computer, the second signal being unique to the device associated with the second person and different than the first signal;

    using a medium, which stores a set of signals each corresponding to a device and a person, to look up an identity of the second person by matching the second signal with one of the signals stored on the medium; and

    causing an output device to produce a third signal which is perceptible to humans, the third signal produced based on the identity of the second person.

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