Automobile navigation system

  • US 5,844,505 A
  • Filed: 04/01/1997
  • Issued: 12/01/1998
  • Est. Priority Date: 04/01/1997
  • Status: Expired due to Term
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First Claim
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1. Automobile navigation system, comprising:

  • means for receiving video signals representing standard road signs being approached by a vehicle;

    means for determining a current direction of travel of said vehicle;

    means for receiving a desired destination of said vehicle;

    audio output means for outputting audio messages to a driver of said vehicle; and

    control means for converting predetermines ones of said video signals to road data indicating a current location of said vehicle based on information including at least one of road sign text, color or shape;

    for determining from said current location of said vehicle and said desired destination a desired route of travel of said vehicle; and

    for controlling said audio output means to output to said driver audio directions based on the current location of said vehicle, the current direction of travel of said vehicle and the determined desired route of travel.

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