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ACTIVE NOISE-CANCELLATION FEEDBACK SIGNAL TRANSMISSION

  • US 20160284335A1
  • Filed: 06/06/2016
  • Published: 09/29/2016
  • Est. Priority Date: 01/06/2012
  • Status: Active Grant
First Claim
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1. An electronic audio device comprising:

  • (a) a user interface controller;

    (b) a headset interface having a right audio lead, a left audio lead, and a microphone lead;

    (c) an audio system coupled to the user interface controller and having a right audio output and a left audio output; and

    (d) a decoder including;

    i. a left ultrasonic demodulator having an input connected to the microphone lead and an output;

    ii. a left mixer having an input connected to the left audio output, an input connected to the output of the left ultrasonic demodulator, and an output connected to the left audio lead;

    iii. a right ultrasonic demodulator having an input connected to the microphone lead and an output; and

    ii. a right mixer having an input connected to the right audio output, an input connected to the output of the right ultrasonic demodulator, and an output connected to the right audio lead.

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