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:
Jul. 05, 2016
Filed:
Nov. 18, 2014
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventors:
Assignee:
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/00 (2013.01); H03K 17/945 (2006.01); G06F 3/041 (2006.01); H03M 1/06 (2006.01); G06F 3/044 (2006.01); H03M 1/12 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G06F 3/044 (2013.01); H03M 1/0619 (2013.01); H03M 1/0621 (2013.01); H03K 2217/94073 (2013.01); H03K 2217/9607 (2013.01); H03K 2217/96015 (2013.01); H03M 1/124 (2013.01);
Abstract
The claims define a processing circuit for processing input signals from a capacitive transducer structure. A current-to-voltage converter receives two input signals from the capacitive transducer structure, and outputs two output signals to gain stage circuits, and to a reference voltage generator. The gain stages generate from the output voltage signals a differential output signal. The reference voltage generates from the output signals a common mode output signal. The processing circuit generates a digital signal that corresponds to a quotient of the differential output signal and the common mode output signal.