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. 17, 2001
Filed:
May. 26, 1998
Applicant:
Inventors:
Stephen M. Curry, Dallas, TX (US);
Michael L. Bolan, Dallas, TX (US);
Kevin E. Deierling, Dallas, TX (US);
William Lee Payne, II, Garland, TX (US);
Hal Kurkowski, Dallas, TX (US);
Assignee:
Dallas Semiconductor Corporation, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01K 3/04 ;
U.S. Cl.
CPC ...
G01K 3/04 ;
Abstract
A temperature-controlled counter/clock arrangement is provided where th rate or frequency of the counting is temperature dependent. This allows for a measuring of thermal accumulation and/or history. The temperature sensing is based upon the use of the varying current that will flow through a toward biased semiconductor diode. In one embodiment a constant voltage source is used so that the current variation will follow Arrhenius's law.