Obstacle detector for a vehicle

Details Obstacle detector for a vehicle Obstacle detector for a vehicle

1980-09-11

1983-05-10

Brigance, Gerald L.

Communications: electrical

Selective

Having indication or alarm

340 34, G01S 966

Patent

active

043832385

ABSTRACT:
A pulse signal generator produces a first pulse signal having a pulse width substantially equal to twice the travel time required for light to travel a braking distance. A light transmitter radiates a light beam signal representing the first pulse signal so as to cover a detection area in which the braking distance is contained. A photoreceptor receives the light signal reflected by an obstacle present in the detection area and converts the received light beam signal to a second corresponding electric pulse signal. A determination device determines whether the time width of a pulse of the first signal is larger than the time interval taken from the time when the corresponding pulse of the light signal is transmitted to the time when the pulse of the light signal is received by the receptor after reflection by the obstacle.

REFERENCES:
patent: 3442347 (1969-05-01), Hodgson et al.
patent: 3749918 (1973-07-01), Jones
patent: 3922629 (1975-11-01), Hayakawa
patent: 3972021 (1976-07-01), Leitz et al.
patent: 4015232 (1977-03-01), Sindle

Affiliated with

Also associated with

Rating

Obstacle detector for a vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Obstacle detector for a vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Obstacle detector for a vehicle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-527955