Patent ID: 11961502
Assignee: BOSE CORPORATION
Field: Other consumer goods (Other fields)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A method of controlling feedback instability in a wearable audio device with an active noise reduction (ANR) system, the method comprising:
determining a current feedback instability by combining outputs from multiple instability detectors,
applying latch logic to the current feedback instability to determine a current mitigation value,
adjusting a driver command signal based on the current mitigation value to mitigate feedback instability, wherein adjusting the driver command signal based on the current mitigation value smooths a transition between ANR settings,
determining an instability error value for the ANR system based on a comparison of the current instability value to a setpoint instability value, and
applying a gain to the instability error value.