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Apparatus and method for a universal electronic locking system

  • US 4,931,789 A
  • Filed: 05/12/1988
  • Issued: 06/05/1990
  • Est. Priority Date: 11/01/1983
  • Status: Expired due to Fees
First Claim
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1. An electronically actuated locking system comprising a signal transmitting unit energized by a self-contained power source;

  • said signal transmitting unit comprising first electromagnetic radiation emitting means, other than light emitting means, a first controller which activates said electromagnetic radiation emitting means so as to transmit an encoded electromagnetic signal, other than an optical signal, to a signal receiving unit, said first controller including a first programmable memory unit for storing data corresponding to a plurality of different encoded signals and means for entering said data into said first memory unit, said signal receiving unit comprising first means for receiving said encoded electromagnetic signal, means for comparing a received encoded signal to one or more codes contained in a second programmable memory unit capable of storing data corresponding to a plurality of different encoded signals, means for entering said data into said second memory unit and means for deactivating a lock mechanism when said encoded signal matches one of said one or more codes contained in said second memory unit.

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