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:
Dec. 10, 2019
Filed:
Nov. 28, 2018
Tdk Corporation, Tokyo, JP;
Tomasz Hanzlik, Szczecin, PL;
Gino Rocca, Copenhagen, DK;
Marco De Blasi, Gentofte, DK;
Henning Petersen, Allerod, DK;
TDK CORPORATION, Tokyo, JP;
Abstract
An electric circuit for regulating a bias voltage for a transducer of a microphone, the electric circuit including a bias voltage generator configured to generate the bias voltage for the transducer of the microphone and including a sound pressure detector configured to detect the sound pressure which impacts the transducer of the microphone. The bias voltage generator is configured to generate the bias voltage with a linear increasing gradient or linear decreasing gradient in response to the sound pressure detected by the sound pressure detector exceeding or falling below at least one threshold value of the sound pressure.