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Radio direction finder for gaming chip and/or player tracking

  • US 7,701,344 B2
  • Filed: 03/21/2007
  • Issued: 04/20/2010
  • Est. Priority Date: 03/21/2007
  • Status: Active Grant
First Claim
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1. A system for facilitating tracking locations of players and/or wireless communication devices in a casino network, the system comprising:

  • a first processor;

    memory;

    at least one interface; and

    a first antenna array including a first antenna and a second antenna;

    the system being operable to;

    detect, at the first antenna array, a first wireless signal from a first signal source, wherein the detecting comprises receiving the first wireless signal at the first antenna at a first time T1 and receiving the first wireless signal at the second antenna at a second time T2;

    detect a change in frequency of the first wireless signal using information relating to the wireless signal received at times T1 and T2;

    generate, using information relating to the change in frequency of the first wireless signal, first bearing information which includes a first directional bearing to the first signal source; and

    determine, using at least a portion of the first bearing information, a first location of the first signal source.

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