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System providing location information in a sports game

  • US 20050159252A1
  • Filed: 02/22/2005
  • Published: 07/21/2005
  • Est. Priority Date: 08/09/1999
  • Status: Abandoned Application
First Claim
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1. A system for providing location information of mobile units in a sports game, comprising:

  • a central unit (20) comprising a central transceiver (9) and associated antenna;

    plural fixed transmitters (1), each transmitter sending position signals at a first frequency in the 2.4 GHz band;

    a transmitter antenna (2) attached to each transmitter, the transmitter antenna being fixed in an exact surveyed position;

    plural mobile units (3), each mobile unit comprising a receiver (13) for the receiving the position signals from fixed transmitters, the mobile units being mountable on sports game players and equipment, a receiver antenna (4) attached to the receiver, the receiver and receiver antenna tuned to the first frequency, a transceiver (6) and associated antenna (7), and a data processor (8), operatively connected to the receiver (13) and the transceiver (6), to process one-way communication from fixed transmitters to the mobile unit and two-way communications between the central unit and the mobile unit, so that data from fixed transmitters to the mobile unit are processed in the data processor for determining for a position of the mobile unit relative to the fixed transmitters, and sending the relative position to the central unit.

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