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Communication system using geographic position data

  • US 6,512,481 B1
  • Filed: 10/10/1996
  • Issued: 01/28/2003
  • Est. Priority Date: 10/10/1996
  • Status: Expired due to Fees
First Claim
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1. A communication system comprising:

  • a first mobile transceiver having a first processor and a first directional antenna;

    a second transceiver having a second processor and a second antenna;

    a locator coupled to the first transceiver for determining the physical location of the first antenna relative to the second antenna;

    a communication link formed between the first and second transceivers, the link including a first wireless beam from the first antenna to the second antenna and a second wireless beam from the second antenna to the first antenna;

    a first beamformer in the first transceiver for shaping the first wireless beam to be directed toward the second antenna so as to reduce interference, the first beamformer having a first deterministic direction finder to compute an angle of arrival of the second wireless beam;

    the angle of arrival being used by a first steering circuit in the first beamformer to determine a first beam steering direction of a first antenna pattern directed toward the second antenna, and the first beamformer having a first nulling circuit that rejects beams outside the first beam steering direction to the second antenna; and

    a second beamformer in the second transceiver for shaping the second wireless beam to be directed toward the first antenna so as to reduce interference, the second beamformer having a deterministic direction finder to compute an angle of arrival of the first wireless beam, the angle of arrival being used by a second steering circuit in the second beamformer to determine a second beam steering direction of a second antenna pattern directed toward the first antenna, and the second beamformer having a second nulling circuit that rejects beams outside the second beam steering direction to the first antenna.

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