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:
Apr. 15, 1997
Filed:
Jun. 02, 1995
Applicant:
Inventors:
Makoto Watanabe, Nissin, JP;
Yukiyasu Ueno, Nishio, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60R / ;
U.S. Cl.
CPC ...
324502 ; 324550 ; 280735 ;
Abstract
A passenger protection apparatus is provided with a plurality of squibs (activating elements). Transistors are respectively connected in series to these squibs. By switching on these transistors at predetermined differing timing, first monitor currents are conducted via current-controlling resistors to the respective squibs. First monitor currents can be independently conducted to the respective squibs with this structure. For this reason, the voltage levels generated at the squibs by the first monitor currents can be enlarged. Resistance values of the respective squibs can be calculated with high accuracy from these voltage values.