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:
Mar. 25, 1997
Filed:
Nov. 02, 1995
Applicant:
Inventor:
Masahiro Yamamoto, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P / ;
U.S. Cl.
CPC ...
7351433 ; 7351436 ;
Abstract
An acceleration sensing device having a cantilevered acceleration sensing beam mounted at one of its ends on a base mounted on a package substrate. Strain caused by the movement of a weight disposed at a free end of the acceleration sensing beam is detected with a bridge circuit. When the base separates from the package substrate, an abnormal state sensing electrode of the weight comes into electrical contact with the package substrate, which is a ground terminal, so that an output from a differential amplifier of the bridge circuit is fixed to a low (or high) level, warning of the abnormal state.