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:
Dec. 29, 1992
Filed:
Oct. 10, 1990
Satoshi Shimada, Hitachi, JP;
Seiko Suzuki, Hitachiota, JP;
Shigeki Tsuchitani, Mito, JP;
Seiichi Ugai, Hitachi, JP;
Masayoshi Kaneyasu, Hitachi, JP;
Hiroshi Kuroiwa, Hitachi, JP;
Yoshihiro Yokota, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A detector for detecting a physical quantity as a quantity of electricity has a detection portion, a portion for stimulating the detection portion and a signal processing portion, wherein a calibrating signal is supplied from the signal processing portion to the detection portion via the stimulating portion so as to measure a specific response of the detection portion whereby a self-calibration and a correction of the characteristics are performed in accordance with the amount of the change in the response.