Electronic access control device

  • US 20040246098A1
  • Filed: 07/07/2004
  • Published: 12/09/2004
  • Est. Priority Date: 11/15/1994
  • Status: Active Grant
First Claim
Patent Images

1. An electronic control device comprising:

  • a circuit having a portion deactivated during a first time period;

    the portion of the circuit enabled during a second time period, the portion of the circuit having an enable output signal generated in response to a sensed signal;

    the portion of the circuit being enabled for an extended time period that is greater than the second time period;

    the portion of the circuit having an input code output generated in response to the signal and during the extended time period;

    a microprocessor having an output signal generated if the input code matches an authorization code; and

    , a driver having an output generated in response to the output signal generated by the microprocessor.

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