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:
Aug. 16, 2022
Filed:
Feb. 27, 2020
Applicant:
Db Hitek Co., Ltd., Seoul, KR;
Inventors:
Assignee:
DB Hitek Co., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 19/04 (2006.01); H04R 1/04 (2006.01); H04R 7/16 (2006.01); H04R 7/04 (2006.01);
U.S. Cl.
CPC ...
H04R 19/04 (2013.01); H04R 1/04 (2013.01); H04R 7/04 (2013.01); H04R 7/16 (2013.01); H04R 2201/003 (2013.01);
Abstract
A back plate is disposed in a vibration area of a MEMS microphone. The back plate includes a central area located at a central portion of the back plate and having a plurality of acoustic holes formed therein, and a peripheral area located to surround the central area. The acoustic holes are arranged to be spaced apart from each other by the same interval.