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:
Oct. 23, 1984
Filed:
Dec. 10, 1981
Hiromitsu Takai, Kariya, JP;
Akira Shibata, Okazaki, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A detecting apparatus for compensating for changes in supply voltage to a physical parameter sensor. The apparatus includes an input element, such as a heatsensitive resistor connected to a voltage source to produce a voltage signal (C.sub.S) corresponding to a physical factor, e.g., a temperature. A constant voltage circuit or a voltage divider connected to the same voltage source as the input element produces a reference voltage signal (C.sub.R) corresponding to a predetermined reference value of the input element. Both voltage signals (C.sub.S, C.sub.R) are applied to a microcomputer in which a correction value (C.sub.C) is calculated on the basis of the both voltage signals (C.sub.S, C.sub.R) and a theoretical set value (C.sub.O) of the reference voltage signal (C.sub.R). The detected physical factor by the input element is corrected by the correction value (C.sub.C).