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:
Jun. 25, 1996
Filed:
Apr. 26, 1994
Hiromichi Fujishima, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
A passive safety device starting apparatus includes: a sampling unit for sampling a plurality of acceleration values from an automotive vehicle according to periodic interrupt signals; an integration unit for calculating the sum of a plurality of acceleration values sampled within each of a plurality of first time intervals, for storing a number of the sums, each of which is calculated within a second time interval greater than one of the first time intervals, in a corresponding number of data areas of a memory, and for generating a value of an integral based on the number of the sums within each first time interval; and a starting unit for updating the integral value according to the periodic interrupt signals by adding a new acceleration value to the integral value generated by the integration unit after the new acceleration value is sampled by the sampling unit, and for starting a passive safety device when the updated integral value is detected to be greater than a threshold value.