Apparatus for storing and reading data

Details Apparatus for storing and reading data Apparatus for storing and reading data

1978-06-06

1979-10-30

Cook, Daryl W.

Registers

Coded record sensors

Particular sensor structure

235465, 235494, 250555, G06K 714, G06K 1906, G06K 1908, G08C 906

Patent

active

041725549

ABSTRACT:
Apparatus for storing and reading data in association with a card which has a timing track comprising at least three different kinds of optically-readable timing markings arranged in the timing track in a cyclic sequence, and a data track, the apparatus including three optical timing sensors respectively responsive to the three different kinds of timing markings, and a reading direction detector controlled by the timing sensors.

REFERENCES:
patent: 2952008 (1960-09-01), Mitchell et al.
patent: 3418456 (1966-12-01), Hamisch et al.
patent: 3562494 (1971-02-01), Schmidt
patent: 3798421 (1974-03-01), Gilberg et al.
patent: 3852572 (1974-12-01), Nicoud
patent: 3891829 (1975-06-01), Dobras
patent: 3898689 (1975-08-01), D'Orazio et al.

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