Communication and navigation system incorporating position determination

  • US 6,169,955 B1
  • Filed: 10/14/1999
  • Issued: 01/02/2001
  • Est. Priority Date: 04/16/1997
  • Status: Expired due to Term
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First Claim
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1. An integrated navigation and information system comprising:

  • a computing device located at a service location including data storage and voice synthesis logic such that said computing device computes travel routes and responds to data inquiries by assembling appropriate data from said data storage to generate voice based instructions;

    a communication system for coupling communications between a mobile unit and said service location, said communication system coupling inquiries to said computing device and transmitting said voice based instructions to said mobile unit;

    a receiver disposed within said mobile unit for receiving signals from satellites;

    position signal processing circuitry disposed within said mobile unit and coupled to said receiver for analyzing position determining signals so as to determine the position of said receiver, said position signal processing circuitry coupled to said communication system for coupling said position of said receiver to said service location;

    a speaker coupled to said communication system for communicating information received from said service location to a user; and

    a communication processing device coupled to said position signal processing circuitry, coupled to said communication system and coupled to said speaker for storing information including said voice based instructions and encoded data such that, upon the movement of said mobile unit to locations corresponding to said encoded data, said voice based instructions are incrementally transmitted by said speaker.

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