Communications: electrical – Vehicle detectors – With camera
Reexamination Certificate
2008-03-21
2010-12-28
Swarthout, Brent (Department: 2612)
Communications: electrical
Vehicle detectors
With camera
C340S435000, C340S903000, C340S942000, C348S148000
Reexamination Certificate
active
07859432
ABSTRACT:
The present invention relates to a collision avoidance system based on the detection of obstacles (e.g., other vehicles and obstructive objects) in the blind spots of a vehicle. The collision avoidance system includes: a turn signal lamp detector for detecting an activation of a turn signal lamp of the vehicle; a charge-coupled device (CCD) camera for capturing an image for a road environment, outputting the captured image as road environment data, and measuring a winding or curvature degree of a current road; a steering angle detector for detecting a steering angle of the vehicle and outputting a resulting signal as a steering angle signal; an infrared sensor for transmitting or receiving infrared light to or from an obstacle present in a blind spot of the vehicle, and outputting an obstacle detection signal; a warning device configured to warn the possibility of collision between the obstacle and the vehicle to a driver; and a controller configured to operate the warning device upon detection of the activation of the turn signal lamp by the turn signal lamp detector, followed by activation of the infrared sensor to determine presence of an obstacle in the blind spot, the controller further configured to operate the warning device upon detection of a progress of lane change based on comparison between the road environment data and the steering angle signal output, followed by activation of the infrared sensor to determine presence of an obstacle in the blind spot.
REFERENCES:
patent: 7061373 (2006-06-01), Takahashi
patent: 7477137 (2009-01-01), Matsumoto et al.
patent: 2002/0005778 (2002-01-01), Breed et al.
patent: 2006/0006988 (2006-01-01), Harter et al.
patent: 2006/0182312 (2006-08-01), Nakai et al.
Hur Won Moo
Kim Heung Seop
Kim Hwa Sik
Kim Young Hoon
Park Jong Sup
Che Il Electric Wireing Devices Co., Ltd.
Che Il Electronics Ind. Co., Ltd.
Park & Associates IP Law LLC
Swarthout Brent
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