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:
Jul. 01, 2003
Filed:
Jul. 26, 2000
Takashi Masuda, Tokyo, JP;
Yasuhide Yoshikawa, Tokyo, JP;
Yamatake Corporation, Tokyo, JP;
Abstract
A sensor signal processing apparatus includes a sensor section, power supply section, switching section, and CPU. The characteristics of the sensor section change in accordance with a change in physical quantity to be measured. The power supply section supplies powers of two systems having different polarities to the sensor section. The switching section is connected between the power supply section and the sensor section to switch combinations of powers of the two systems from the power supply section while preventing mixing of powers of the two systems. The CPU obtains the ratio between the differences between a plurality of signals output from the sensor section for every switching operation of the switching section.