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Adaptive receiver

  • US 10,599,389 B2
  • Filed: 11/28/2018
  • Issued: 03/24/2020
  • Est. Priority Date: 05/22/2015
  • Status: Active Grant
First Claim
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1. A system for determining a proximity state relating to a proximity of a speaker from an ear of a user, the system comprising:

  • an audio path configured to deliver an audio signal comprising a diagnostic signal to the speaker; and

    proximity estimator circuitry configured to;

    receive a feedback signal from a feedback microphone configured to monitor the output of the speaker in the vicinity of the speaker, wherein the feedback signal is based on the diagnostic signal; and

    analyze the diagnostic signal and the feedback signal to calculate the proximity state, wherein the proximity estimator circuitry is configured to assess a coupling between the speaker and the feedback microphone using a feedback algorithm.

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