×

Headphone off-ear detection

  • US 10,200,776 B2
  • Filed: 05/18/2018
  • Issued: 02/05/2019
  • Est. Priority Date: 10/24/2016
  • Status: Active Grant
First Claim
Patent Images

1. A signal processor for headphone off-ear detection, the signal processor comprising:

  • an audio generator to create and transmit an audio signal toward a headphone speaker in a headphone cup;

    a feedback (FB) microphone input to receive a FB signal from a FB microphone in the headphone cup; and

    an off-ear detection (OED) signal processor configured to;

    determine an audio frequency response of the FB signal as a received frequency response,generate a difference metric comparing the received frequency response to a modeled off-ear frequency response, anduse the difference metric to detect when the headphone cup is disengaged from an ear.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×