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Hearing assistance devices with echo cancellation

  • US 9,294,851 B2
  • Filed: 06/09/2014
  • Issued: 03/22/2016
  • Est. Priority Date: 03/12/2009
  • Status: Active Grant
First Claim
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1. A hearing assistance device, comprising:

  • a housing configured to be worn on or in an ear of a wearer;

    a microphone in the housing;

    an output from the housing;

    a receiver connected to the output;

    an adaptive filter in the housing configured to perform acoustic feedback cancellation for the hearing assistance device;

    a signal processor in the housing programmed to include feedback cancellation; and

    a wireless communication antenna in the housing, a wireless communication receiver in the housing, and a wireless communication transmitter in the housing;

    wherein the hearing assistance device is configured to operate in multiple reception modes including a wireless communication mode;

    wherein in the wireless communication mode, the microphone is electrically decoupled from the output and a received wireless signal is used as a training signal for the adaptive filter, wherein the signal processor is configured to modify the feedback cancellation by changing an adaptation coefficient of the adaptive filter such that echo cancellation of the wireless signal is performed by the adaptive filter.

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