Apparatus for counting the number of passing persons by stature

Details Apparatus for counting the number of passing persons by stature Apparatus for counting the number of passing persons by stature

1991-10-30

1993-10-19

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Counting animate or inanimate entities

377 53, 250221, 340556, G07C 900, G06M 100

Patent

active

052553019

ABSTRACT:
An apparatus for counting the number of passing persons by stature, wherein a projector for radiating light toward the head of a passing person, a light receiving lens for receiving light reflected from the person's head, and a light position detector are arranged as one set at an upper portion of a gateway or a passageway. The light receiving lens converges reflected light to different light-received positions of the light position detector according to the height of the reflective position. The light position detector outputs electric signals which differ according to the reflected light received at the light-received positions and a counting operation is performed discriminatively for every output of the signals.

REFERENCES:
patent: 4278878 (1981-07-01), Kato
patent: 4356387 (1982-10-01), Tsubota et al.
patent: 4384195 (1983-05-01), Nosler
patent: 4628520 (1986-12-01), Menger
patent: 4847485 (1989-07-01), Koelsch
patent: 4993049 (1991-02-01), Cupps
patent: 5138638 (1992-08-01), Frey

Affiliated with

Also associated with

Rating

Apparatus for counting the number of passing persons by stature does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for counting the number of passing persons by stature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for counting the number of passing persons by stature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1358122