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:
Aug. 26, 1997
Filed:
Jan. 26, 1996
Applicant:
Inventor:
Toshifumi Koshizawa, Fujisawa, JP;
Assignee:
Isuzu Motors Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G / ;
U.S. Cl.
CPC ...
340901 ; 340903 ; 340904 ; 340937 ; 364461 ; 348118 ;
Abstract
An off-lane alarm apparatus quantizes an image signal provided from a line camera mounted on a car roof is into a corresponding binary image by an image processing device to detect a lane on a road surface, so that an alarm is generated when an off-lane state of the car from the lane is detected. After mounting a line camera on a car, markers preset at predetermined positions outside of the car are shot and preliminarily stored as binary image signals and the positional information is used as car side positional information for alarm determinations.