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:
Nov. 03, 1998
Filed:
Dec. 23, 1996
Applicant:
Inventors:
Hector Sanchez, Cedar Park, TX (US);
Jose Alvarez, Leander, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01K / ;
U.S. Cl.
CPC ...
374178 ;
Abstract
A temperature sensor (1800) incorporates two diodes (1802, 1804). The voltage difference across each diode is a linear function of temperature. The voltage difference between the two diodes is also a function of the ratio of their respective sizes. These relationships can be used to build a sensor that is inexpensive, reliable, and whose process variance is predictable.