公开(公告)号：US20230186890A1

公开(公告)日：2023-06-15

申请号：US17856245

申请日：2022-07-01

Applicant: Airoha Technology Corp.

Inventor： Kai-Sheng CHEN ,  En-Tai KUO ,  Dong-Jun LIN ,  Shih-Kai HE

IPC: G10K11/178 ,  H04R1/10

CPC classification number: G10K11/17854 ,  G10K11/17825 ,  G10K11/17881 ,  G10K11/17823 ,  H04R1/1083 ,  G10K2210/3026 ,  G10K2210/3028 ,  G10K2210/3044 ,  G10K2210/3027 ,  G10K2210/1081 ,  H04R2460/01

Abstract: The disclosure provides an audio processing device comprising a first filter and a second filter. The first filter is configured to generate a first filtered signal based on an error signal, the error signal representative of audible sound at a target space. The second filter is configured to generate a second filtered signal based on the error signal. An anti-noise signal is generated based on the first filtered signal and the second filtered signal, and the anti-noise signal is included in the error signal. The first filter is connected to the second filter in parallel.