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:
Apr. 03, 2018
Filed:
Nov. 25, 2014
Applicant:
Invensense, Inc., San Jose, CA (US);
Inventor:
Omid Oliaei, Sunnyvale, CA (US);
Assignee:
INVENSENSE, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H03G 5/00 (2006.01); H04R 1/40 (2006.01); H03F 3/183 (2006.01); H04R 29/00 (2006.01);
U.S. Cl.
CPC ...
H04R 1/406 (2013.01); H03F 3/183 (2013.01); H04R 3/005 (2013.01); H04R 29/005 (2013.01); H03F 2200/03 (2013.01); H04R 2201/003 (2013.01); H04R 2499/11 (2013.01); H04R 2499/15 (2013.01);
Abstract
Microelectromechanical systems (MEMS) acoustic sensors are implemented with dedicated preamplifiers. Provided implementations can comprise an array of MEMS acoustic sensor elements each having a dedicated preamplifier. A summation node can add outputs of each preamplifier and an analog to digital converter (ADC) can receive the summed outputs. Other implementations can comprise an array of MEMS acoustic sensors each having dedicated preamplifiers. Some of the preamplifiers receive an invert signal and an ADC can subtract inverted signals from non-inverted signals.