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:
May. 19, 2015
Filed:
Oct. 20, 2011
Applicant:
Mitsuhiro Yamamura, Nagano, JP;
Inventor:
Mitsuhiro Yamamura, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 5/34 (2006.01); G01J 1/44 (2006.01); H01L 37/02 (2006.01); G08B 13/191 (2006.01);
U.S. Cl.
CPC ...
G01J 5/34 (2013.01); G01J 1/44 (2013.01);
Abstract
A detection circuit includes a pyroelectric element; a first P-type transistor provided between an output node and a low-potential-side power node of the detection circuit, a detection signal being inputted from the pyroelectric element to a gate of the first P-type transistor; and a second P-type transistor provided between a high-potential-side power node and the output node, a gate of the second P-type transistor being set to a reference voltage.