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:
Aug. 30, 2016
Filed:
Aug. 31, 2012
Applicants:
Isao Niwa, Kyoto, JP;
Youichiro Noguchi, Kyoto, JP;
Inventors:
Isao Niwa, Kyoto, JP;
Youichiro Noguchi, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/113 (2006.01); H01L 41/09 (2006.01); G01S 7/526 (2006.01); G01F 1/66 (2006.01); G01S 7/523 (2006.01); G01S 15/93 (2006.01); G01S 7/52 (2006.01);
U.S. Cl.
CPC ...
G01S 7/526 (2013.01); G01F 1/667 (2013.01); G01S 7/523 (2013.01); G01S 7/52017 (2013.01); G01S 15/931 (2013.01);
Abstract
A receiving circuit () includes an amplifier () which amplifies receiving signals (SP, SN) of a piezoelectric sensor (), and a plurality of transistors () or (), which are connected in parallel to between one end of the piezoelectric sensor () and one end of the amplifier (), and are turned on with phase shift when switching is performed to receiving operations.