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:
Jun. 27, 2017
Filed:
Jan. 05, 2012
Applicants:
Jelena Citakovic Haas-christensen, Valby, DK;
Tomasz Hanzlik, Wroclaw, PL;
Ivan Riis Nielsen, Stenløse, DK;
Daifi Haoues Sassene, Vaerlöse, DK;
Tomasz Marczak, Szczecin, PL;
Inventors:
Jelena Citakovic Haas-Christensen, Valby, DK;
Tomasz Hanzlik, Wroclaw, PL;
Ivan Riis Nielsen, Stenløse, DK;
Daifi Haoues Sassene, Vaerlöse, DK;
Tomasz Marczak, Szczecin, PL;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H04R 19/01 (2006.01); H04R 1/08 (2006.01);
U.S. Cl.
CPC ...
H04R 3/00 (2013.01); H04R 1/08 (2013.01); H04R 19/016 (2013.01);
Abstract
A differential microphone with improved biasing and a well defined common mode output voltage is connected to an amplifier that includes a differential amplifier stage and a common mode feedback circuit. The amplifier is in a feedback configuration.