Electronic circuit for telephone paystation coin operated trigge

Details Electronic circuit for telephone paystation coin operated trigge Electronic circuit for telephone paystation coin operated trigge

1991-02-21

1992-01-28

Fields, Carolyn E.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502221, 453 4, 379148, H04M 1702, G07F 304

Patent

active

050846132

ABSTRACT:
A circuit operated in response to deposit of a coin through a trigger switch to selectively operate one of a plurality of signal generators. When coins are deposited through said coin trigger switch, blocking light from a light source to a light detection means, an associated signal driver activates a selected tone signal generator.

REFERENCES:
patent: 3680566 (1972-08-01), Tanuka et al.
patent: 4436103 (1984-03-01), Dick
patent: 4988860 (1991-01-01), Wollet et al.

Affiliated with

Also associated with

Rating

Electronic circuit for telephone paystation coin operated trigge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic circuit for telephone paystation coin operated trigge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic circuit for telephone paystation coin operated trigge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1862576