The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2023
Filed:
Jan. 25, 2022
Applicants:
Denso Corporation, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Mirise Technologies Corporation, Nisshin, JP;
Inventors:
Tomoki Tanemura, Nisshin, JP;
Hideyuki Nagai, Nisshin, JP;
Assignees:
DENSO CORPORATION, Kariya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
MIRISE Technologies Corporation, Nisshin, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 19/04 (2006.01); H03G 5/16 (2006.01); H04R 3/04 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
H04R 19/04 (2013.01); H03G 5/165 (2013.01); H04R 3/04 (2013.01); H04R 19/005 (2013.01); H04R 2201/003 (2013.01);
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.