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ELECTRONIC COMBINATION LOCK SYSTEM

  • US 3,660,729 A
  • Filed: 01/11/1971
  • Issued: 05/02/1972
  • Est. Priority Date: 01/11/1971
  • Status: Expired due to Term
First Claim
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1. A electronic combination lock system comprising, in combination:

  • input means for providing control signals for said system, said control signals including a sequence of digit signals representing a combination;

    a decoder including coding means for establisHing a predetermined combination of digits for said system, means for comparing said digit signals with respective digits of said predetermined combination and producing an output signal in response thereto, said comparing means including first means for determining the value of each of said digit signals and second means for determining the sequential position of each of said digit signals such that each of said digit signals can be compared to the corresponding digit in said predetermined combination; and

    locking means responsive to said output signal for moving between locked and unlocked positions.

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