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VEHICLE SPEED INDICATOR SYSTEM

  • US 3,597,730 A
  • Filed: 12/23/1968
  • Issued: 08/03/1971
  • Est. Priority Date: 12/23/1968
  • Status: Expired due to Term
First Claim
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1. A speed-indicating device for indicating the speed of a vehicle externally of the vehicle, comprising:

  • a. means for forming a pulse train having a frequency proportional to speed of a vehicle;

    b. counter means connected to said pulse-forming means for storing pulses therefrom;

    c. decode matrix means connected to said counter means and responsive to the count stored in said counter means falling within predetermined count ranges;

    d. output means connected to said decode matrix and responsive to a count falling within such predetermined count ranges and forming a signal indicative of a particular count range; and

    , e. lamp means operated by the signal from said output means and illuminated thereby to signal the speed of such vehicle in accordance with a predetermined code.

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