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. 27, 2004
Filed:
Apr. 12, 2002
Applicant:
Inventors:
Junichi Ando, Zama, JP;
Yukiteru Yamamoto, Hiratsuka, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 2/100 ; B60Q 7/00 ; B60R 2/132 ; B60D 7/28 ;
U.S. Cl.
CPC ...
G08B 2/100 ; B60Q 7/00 ; B60R 2/132 ; B60D 7/28 ;
Abstract
A passenger detection system is provided to determine if a passenger is present or not because the weight value corresponding to when the seat is empty has shifted. The passenger detection system detects when the door has changed from the closed state to the open state based on a signal from a door switch. The passenger detection system then senses the decrease in weight that occurs thereafter and stores the weight value obtained after the decrease as the empty seat value.