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:
Mar. 02, 2021
Filed:
Aug. 18, 2016
Applicants:
Alan Michel, Shanghai, CN;
Sean Gao, Shanghai, CN;
Guangyue LV, Shanghai, CN;
Inventors:
Assignee:
Harman International Industries, Incorporated, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 19/01 (2006.01); H04R 31/00 (2006.01); H04R 1/04 (2006.01); H04R 7/22 (2006.01);
U.S. Cl.
CPC ...
H04R 1/04 (2013.01); H04R 7/22 (2013.01); H04R 19/016 (2013.01); H04R 31/006 (2013.01);
Abstract
An electret condenser microphone is provided. The electret condenser microphone comprises a diaphragm, a backplate with a metal layer on the side facing the diaphragm and an amplifier on the other side, the input of the amplifier electrically connecting the metal layer, a spacer separating the diaphragm and the backplate PWB; and a metal sleeve accommodating the diaphragm, the backplate and the spacer.