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. 22, 1994
Filed:
Dec. 14, 1993
Applicant:
Inventors:
Seiko Suzuki, Hitachioota, JP;
Kazuo Kato, Toukai, JP;
Masahiro Matsumoto, Hitachi, JP;
Shigeki Tsuchitani, Mito, JP;
Masayuki Miki, Katsuta, JP;
Yoshihiro Yokota, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; G01D / ; G01P / ;
U.S. Cl.
CPC ...
73 / ; 73497 ; 7351 / ; 73708 ; 364566 ; 36457101 ;
Abstract
A signal processor (5) is coupled to a detector (6) for detecting a physical quantity. The signal processor has a zero adjustment memory (14) and a sensitivity adjustment memory (16). The zero adjustment memory and the sensitivity adjustment memory have a number of switches (20, 20A, 20', 20'), respectively. These switches are changed over digitally using a zener zapping method or a polysilicon fuse method at each switch to adjust the characteristics of the detector.