US 12,456,474 B2
Advanced noise cancellation
Alberto Gozzi, Macquarie University (AU); and Thomas Leroux, Macquarie University (AU)
Assigned to Cochlear Limited, Macquarie University (AU)
Appl. No. 18/026,029
Filed by COCHLEAR LIMITED, Macquarie University (AU)
PCT Filed Sep. 10, 2021, PCT No. PCT/IB2021/058270
§ 371(c)(1), (2) Date Mar. 13, 2023,
PCT Pub. No. WO2022/054008, PCT Pub. Date Mar. 17, 2022.
Claims priority of provisional application 63/077,194, filed on Sep. 11, 2020.
Prior Publication US 2023/0368806 A1, Nov. 16, 2023
Int. Cl. G10L 21/0216 (2013.01); H04R 25/00 (2006.01)
CPC G10L 21/0216 (2013.01) [H04R 25/407 (2013.01); G10L 2021/02165 (2013.01); H04R 2410/05 (2013.01); H04R 2460/01 (2013.01)] 22 Claims
OG exemplary drawing
 
9. A system for reducing noise in a drive signal of a hearing device, comprising:
a microphone operative to receive sound and generate a microphone output signal; and
an accelerometer operative to receive energy and generate an accelerometer output signal, the energy being energy also received at least in part by the microphone and transduced at least in part by the microphone into the microphone output signal, wherein
the system is configured to cancel feedback from the microphone output signal and the accelerometer output signal and output respective cleaner signals, and
the system is configured to combine the respective signals to a modified signal that is a result of subtraction of a signal based on the respective cleaner signal for the accelerometer from a signal based on the respective cleaner signal for the microphone.