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Bi-phase communication demodulation techniques

  • US 10,187,231 B2
  • Filed: 03/23/2015
  • Issued: 01/22/2019
  • Est. Priority Date: 06/23/2011
  • Status: Active Grant
First Claim
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1. A bi-phase communication receiver system comprising:

  • a channel selection controller configured to compare a first bi-phase modulation channel having a first amplitude and a second bi-phase modulation channel having a second amplitude different from the first amplitude, the first and second bi-phase modulation channels associated with a bi-phase modulation signal, the channel selection controller configured to select one of the first and second bi-phase modulation channels for processing and to discard the other of the first and second bi-phase modulation channels based only on a relative amplitude of the first and second bi-phase modulation channels;

    a preamble detector configured to detect a preamble of the selected bi-phase modulation channel and generate a synchronization signal based on the detected preamble; and

    a bi-phase signal decoder coupled to the channel selection controller and the preamble detector, the bi-phase signal decoder configured to decode the selected bi-phase modulation channel aligned by the synchronization signal.

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