公开(公告)号：US20220070600A1

公开(公告)日：2022-03-03

申请号：US17108433

申请日：2020-12-01

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Anindya BHATTACHARYA ,  Bhoodev KUMAR ,  Jaimin MEHTA ,  Yongsheng SHI ,  Aleksey S. KHENKIN ,  John L. MELANSON

IPC: H04R29/00

Abstract: A method and apparatus for detecting a microphone condition of a microphone, the method comprising: applying an electrical stimulus to a microphone; measuring an electrical response to the electrical stimulus at the microphone; comparing the electrical response to an expected response; and determining the microphone condition based on the comparison.

公开(公告)号：US20170180853A1

公开(公告)日：2017-06-22

申请号：US15131886

申请日：2016-04-18

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jaimin MEHTA ,  James Thomas DEAS ,  Stephen T. HODAPP ,  Brian Parker CHESNEY

IPC: H04R3/00 ,  H04R29/00

CPC classification number: H04R3/007 ,  H04R19/005 ,  H04R29/004 ,  H04R2201/003

Abstract: A system may include control circuitry for detecting a plosive event associated with a microphone transducer and in response to the plosive event, causing restoration of acoustic sense operation of the microphone transducer and a processing circuit associated with the microphone transducer. A system for configuring a filter having at least two frequency response configurations to achieve an effective frequency response configuration intermediate to the at least two frequency response configurations may include control circuitry for rapidly switching between the at least two frequency response configurations such that a weighted average frequency response of the filter corresponds to the effective frequency response configuration.

公开(公告)号：US20230262404A1

公开(公告)日：2023-08-17

申请号：US18187186

申请日：2023-03-21

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Anindya BHATTACHARYA ,  Bhoodev KUMAR ,  Jaimin MEHTA ,  Yongsheng SHI ,  Aleksey S. KHENKIN ,  John L. MELANSON

IPC: H04R29/00

CPC classification number: H04R29/004

Abstract: A method and apparatus for detecting a microphone condition of a microphone, the method comprising: applying an electrical stimulus to a microphone; measuring an electrical response to the electrical stimulus at the microphone; comparing the electrical response to an expected response; and determining the microphone condition based on the comparison.

公开(公告)号：US20170180856A1

公开(公告)日：2017-06-22

申请号：US15131940

申请日：2016-04-18

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jaimin MEHTA ,  Stephen T. HODAPP

IPC: H04R3/04 ,  H03G11/04 ,  H03G5/22

CPC classification number: H04R3/04 ,  H03G5/22 ,  H03G11/04 ,  H03H2017/0295 ,  H03H2210/01 ,  H04R3/007 ,  H04R19/005 ,  H04R19/04

Abstract: A system may include control circuitry for detecting a plosive event associated with a microphone transducer and in response to the plosive event, causing restoration of acoustic sense operation of the microphone transducer and a processing circuit associated with the microphone transducer. A system for configuring a filter having at least two frequency response configurations to achieve an effective frequency response configuration intermediate to the at least two frequency response configurations may include control circuitry for rapidly switching between the at least two frequency response configurations such that a weighted average frequency response of the filter corresponds to the effective frequency response configuration.