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Access control using serial discretely coded RF transmissions initiated by a single event

  • US 5,926,106 A
  • Filed: 05/12/1997
  • Issued: 07/20/1999
  • Est. Priority Date: 05/12/1997
  • Status: Expired due to Fees
First Claim
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1. A controller for operation of RF transmitting means having first and second transmission channels communicating at an entryway with RF controlled actuating means remotely receiving different ones of RF access control transmissions from the first and second transmission channels and, responsive thereto, initiating required first and second serial accesss control functions, said controller comprising:

  • user actuatable input means for selectively generating a single electrical initiation signal;

    first and second signal conditioning means connected to receive said single electrical initiation signal and, responsive thereto, for providing first and second conditioned output signals;

    first and second means for coupling said first and second conditioned output signals with the RF transmission means for enabling the first and second transmitting channels, respectively; and

    signal delay means at said second signal conditioning means for delaying output of said second conditioned output signal relative to output of said first conditioned output signal.

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