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. 15, 1984
Filed:
Feb. 09, 1982
Applicant:
Inventors:
Shingo Hashimoto, Tokorozawa, JP;
Mitsuo Sekine, Tokorozawa, JP;
Assignee:
Citizen Watch Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K / ;
U.S. Cl.
CPC ...
374170 ; 374178 ;
Abstract
A temperature sensing device is disclosed which utilizes a temperature sensing circuit which generates a voltage whose level varies linearly in accordance with temperature, this voltage being produced using a pair of MOS field effect transistors which have different values of the ratio Id/K, where Id is drain current and K is the channel pattern ratio of channel width to channel length.