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:
Dec. 29, 2015
Filed:
Jan. 25, 2011
Applicant:
Hiroshi Horiuchi, Nagano, JP;
Inventor:
Hiroshi Horiuchi, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); G01R 31/26 (2014.01); G01N 25/00 (2006.01); G01J 5/34 (2006.01); G01J 5/22 (2006.01); G01K 7/00 (2006.01); H01L 37/02 (2006.01); B41M 5/26 (2006.01); H01G 7/02 (2006.01);
U.S. Cl.
CPC ...
G01J 5/34 (2013.01); G01J 5/22 (2013.01); B41M 5/26 (2013.01); G01K 7/003 (2013.01); H01G 7/023 (2013.01); H01L 37/02 (2013.01);
Abstract
A detection device includes a heat sensing element, a detection circuit connected to a detection node of the heat sensing element, and a read circuit connected to a read node of the detection circuit, wherein the detection circuit includes a drive transistor whose gate is controlled by the detection node. In a program period the detection node is programmed to a voltage value corresponding to the threshold voltage of the drive transistor, and in a read period following the program period the read circuit reads the detection result of the detection circuit.