Head for optical card reader

Details Head for optical card reader Head for optical card reader

1982-11-03

1985-07-09

Pitts, Harold I.

Registers

Coded record sensors

Particular sensor structure

235454, G06K 712

Patent

active

045284458

ABSTRACT:
This invention is directed to an optical card reader in which the cards to be read have a format arranged in columns and rows. A row of timing marks or slots is formed in the card for each column of data. The card is driven past a read head block that directs the light to the card in which the reflected light is received through a shaped aperture or orifice so that a positive indication of the marked area is detected. The signal is applied to an operational amplifier for further treatment. There are a plurality of light sources and sensors transversely arranged in the read head block.

REFERENCES:
patent: 3643066 (1972-02-01), Coliz
patent: 4047023 (1977-09-01), Key

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