Communications: electrical – Land vehicle alarms or indicators – Of relative distance from an obstacle
Patent
1991-05-16
1993-06-01
Swarthout, Brent A.
Communications: electrical
Land vehicle alarms or indicators
Of relative distance from an obstacle
340903, 358126, B60Q 100
Patent
active
052164080
ABSTRACT:
An inter-vihicle distance detecting device for automatic tracking of a foregoing car which comprises: image sensors for taking images of a foregoing car; displaying means for displaying one of the images of the foregoing car being taken by the image sensors; an image taking window which repeats forward and backward movement horizontally from an end to the other end of a display of the displaying means at a predetermined speed; an image tracking starting switch being operable by a driver; image tracking means for tracking the image of the foregoing car, activated by the image tracking starting switch when the image of the foregoing car enters in the image taking window; and detecting means for detecting an inter-vehicle distance between a car of the driver and the foregoing car being displayed on the image taking window.
REFERENCES:
patent: 4709264 (1987-11-01), Tamura et al.
patent: 4847772 (1989-07-01), Michalopoulos et al.
patent: 5023712 (1991-06-01), Kajiwara
patent: 5062056 (1991-10-01), Lo et al.
patent: 5161632 (1992-11-01), Asayama
patent: 5165108 (1992-11-01), Asayama
Mitsubishi Denki K.K.
Swarthout Brent A.
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