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SECURED AREA ACCESS SYSTEM, APPARATUS, AND METHOD

  • US 20110153121A1
  • Filed: 01/20/2011
  • Published: 06/23/2011
  • Est. Priority Date: 11/06/2007
  • Status: Abandoned Application
First Claim
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1. A secured area access system, comprising:

  • a) a signal transmitter, the signal transmitter adapted to transmit a encoded optical or acoustic signal;

    b) a detector, the detector adapted to detect the encoded optical or acoustic signal and generate a detector output signal;

    c) an access controller module in communication with the detector and having a processor and a memory, the access controller module adapted to store in the memory an preselected encoded area access code, receive the detector output signal and perform at least one signal processing function, wherein the at least one signal processing function is selected from the group consisting of;

    i) amplifying an amplitude of the detector output signal;

    ii) downconverting the detector output signal;

    iii) demodulating the detector output signal, or;

    iv) correcting phase distortions in the detector output signal, and;

    the access controller module further adapted to compare the processed receiver output signal with the preselected encoded area access code stored in the memory, and wherein the controller outputs an unlock signal if the processed receiver output signal matches the encoded area access code.

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