Method and apparatus to read-in bar-coded information

Details Method and apparatus to read-in bar-coded information Method and apparatus to read-in bar-coded information

1976-11-15

1978-02-14

Cook, Daryl W.

Registers

Coded record sensors

Particular sensor structure

250555, G06K 710, G08C 906

Patent

active

040741150

ABSTRACT:
A card on which at least a group of bar-coded information are printed is carried by a motor-driven carrier. The bar-coded information is sensed and converted into a group of parallel digital signals, which is compared with a previously stored data to check coincidence. The same bar-coded information is repeatedly sensed, converted, and compared as above and number of the coincidence times is counted until it has passed a read-in position driven by the card carrier. The card is accepted as readable when the number of coincidence times reaches a preset number. Otherwise, it is rejected by reversing the motor.

REFERENCES:
patent: 3876981 (1975-04-01), Welch
patent: 3932840 (1976-01-01), Hanchett
patent: 3971917 (1976-07-01), Maddox et al.

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