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, 2012
Filed:
Sep. 10, 2008
Applicants:
Tomoyuki Goto, Kawasaki, JP;
Shin-ichi Kubota, Minoo, JP;
Koichi Yano, Yokohama, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A temperature sensing circuit that detects a given temperature includes a first differential input circuit and a second differential input circuit connected to the first differential input circuit. The first differential input circuit is configured to provide a first offset voltage with no temperature coefficient. The second differential input circuit is configured to provide a second offset voltage with a non-zero temperature coefficient. The given temperature is detected based on the first offset voltage and the second offset voltage. An electronic device using such a temperature sensing circuit is also disclosed.