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.

Date of Patent:
Dec. 27, 2011

Filed:

Aug. 27, 2008
Applicant:

Tomoaki Shoda, Yokohama, JP;

Inventor:

Tomoaki Shoda, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 7/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A temperature detection circuit includes: a voltage generator that is connected to a first voltage line having first voltage and a second voltage line having second voltage and to output a third voltage to a third voltage line, the third voltage being obtained by transforming the first voltage to be stepped down as an ambient temperature becomes higher; and a detecting unit that includes: a delay section that is connected to the second voltage line and the third voltage line and to receive a pulse signal, the delay section being configured to output a delayed pulse signal that is obtained by delaying the pulse signal for a delay time set to be longer as the third voltage becomes lower; and a temperature detecting section that is configured to: receive the delayed pulse signal and the pulse signal; latch the delayed pulse signal based on the pulse signal; output the latched signal as a detection result.


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