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:
Sep. 11, 1990
Filed:
Sep. 22, 1989
Hisatsugu Itoh, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An improved fault detector for a vehicle air bag safety system including a balanced wheatstone bridge having a squib resistor at one arm thereof and a G sensor at another arm thereof. Wherein, outputs of the wheatstone bridge are fed alternatively to a single DC amplifier circuit by utilizing switching circuits and a voltage difference of the alternative outputs derived from the DC amplifier circuit is measured for detecting any transition or a fault of the squib resistor without any influence of the input offset voltage for the DC amplifier circuit and of dispersions in circuit constant as well as components of a measuring system, thereby eliminating the precise adjustments which are required in the prior art system during the production stage for providing an inexpensive and highly reliable fault detector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile