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

Claim 8:
9. A wearable audio device comprising:
an electro-acoustic transducer for providing an audio output,
at least one microphone configured to detect noise; and
a controller coupled with the electro-acoustic transducer and the at least one microphone, the controller including an active noise reduction (ANR) system for controlling noise in the audio output, wherein the controller is configured to:
determine a current feedback instability by combining outputs from multiple instability detectors,
apply latch logic to the current feedback instability to determine a current mitigation value, wherein applying the latch logic includes:
applying a baseline mitigation value associated with a baseline instability as the current mitigation value, and
modifying the current mitigation value in response to determining that the current feedback instability exceeds the baseline instability as controlled by a latch mechanism,
wherein the baseline mitigation value is applied to the ANR system until a triggering event is detected, wherein the triggering event includes at least one of: power cycling of the wearable audio device, switching operating modes of the wearable audio device, activating the ANR system, deactivating the ANR system, detecting a donning of the wearable audio device, or detecting doffing of the wearable audio device, and

adjust a driver command signal based on the current mitigation value to mitigate feedback instability.