Invention Application
- Patent Title: MICROPHONE
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Application No.: US17583749Application Date: 2022-01-25
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Publication No.: US20220377466A1Publication Date: 2022-11-24
- Inventor: Tomoki TANEMURA , Hideyuki NAGAI
- Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , MIRISE Technologies Corporation
- Applicant Address: JP Kariya-city; JP Toyota-shi; JP Misshin-shi
- Assignee: DENSO CORPORATION,TOYOTA JIDOSHA KABUSHIKI KAISHA,MIRISE Technologies Corporation
- Current Assignee: DENSO CORPORATION,TOYOTA JIDOSHA KABUSHIKI KAISHA,MIRISE Technologies Corporation
- Current Assignee Address: JP Kariya-city; JP Toyota-shi; JP Misshin-shi
- Priority: JP2021-086362 20210521
- Main IPC: H04R19/04
- IPC: H04R19/04 ; H03G5/16 ; H04R3/04 ; H04R19/00
Abstract:
A microphone has a MEMS device, a driver, and a control unit. The MEMS device outputs a first electrical signal according to an acoustic pressure. The driver vibrates the MEMS device by a drive signal. The control unit calculates a correction value for correcting the first electric signal based on a second electric signal output from the MEMS device when the MEMS device is vibrated by the drive signal.
Public/Granted literature
- US11825267B2 Microphone Public/Granted day:2023-11-21
Information query
