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Avoiding interference to a GPS receiver from wireless transmissions by time multiplexing GPS reception

  • US 6,825,802 B2
  • Filed: 11/18/2002
  • Issued: 11/30/2004
  • Est. Priority Date: 11/18/2002
  • Status: Expired due to Fees
First Claim
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1. A GPS receiver comprising:

  • correlation circuitry adapted to receive a control signal and provide data corresponding to a correlation of a signal with a generated frequency and a generated code at a plurality of time offsets based on said control signal, wherein said control signal is based on an occurrence of a transmission of an interference signal; and

    circuitry adapted to provide said generated frequency and said generated code at said plurality of time offsets to said correlation circuitry;

    wherein said correlation circuitry comprises accumulation circuitry adapted to accumulate results of said correlation based on said control signal to provide said data, stop accumulation of said correlation when said control signal is in a first state, and resume accumulation when said control is in a second state.

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