Automatic film searching and retrieval system

Details Automatic film searching and retrieval system Automatic film searching and retrieval system

1974-05-08

1976-03-02

Cook, Daryl W.

Registers

Calculators

Input-output calculator to indicator, printer, etc.

353 26R, 235 92V, 235 617R, G03B 2312, G06G 728, G06K 710

Patent

active

039419789

ABSTRACT:
An automatic film retrieval system of the type which utilizes film having a plurality of frames, each frame including document images and an adjacent frame marker to facilitate sensing and counting of the frames has an improved film speed drive control circuit which causes the film to be driven at high speed when a desired film frame is greater than a fixed given number of frames away from the actual present frame and at low speed when the desired film frame is less than or equal to a fixed given number of frames away from the actual present frame. The system additionally has an automatic film drive direction control circuit and a stop-go and reset control circuit.

REFERENCES:
patent: 3299272 (1967-01-01), Furukawa
patent: 3700320 (1972-10-01), Brewer
patent: 3785728 (1974-01-01), Peters
patent: 3793508 (1974-02-01), Maggi
patent: 3802771 (1974-04-01), Mickelson
patent: 3812532 (1974-05-01), Crosser
patent: 3820884 (1974-06-01), Sone

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