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

1976-03-18

1979-02-20

Canney, Vincent P.

Registers

Coded record sensors

Particular sensor structure

235456, 235463, G06K 710

Patent

active

041402715

ABSTRACT:
Bar symbols having different bar width for representing information are grouped and recorded on a surface of an object. A light-responsive sensor is swept automatically to repetitively scan the density of the surface-reflected light along the direction in which thegrouped bar symbols are arranged, while the object is moved orthogonally thereto. Electrical signals indicative of the bar width derived from the sensor are processed thereafter for the read-in of the coded data.

REFERENCES:
patent: 3627991 (1971-02-01), Beall et al.
patent: 3743819 (1973-07-01), Kapsambelis
patent: 3774014 (1973-11-01), Berler
patent: 3868634 (1975-02-01), Dolch
patent: 3870865 (1975-03-01), Schneiderham et al.
patent: 3876981 (1975-04-01), Welch
patent: 3879693 (1975-04-01), Roscoe et al.
patent: 3949363 (1976-04-01), Holm
patent: 4070584 (1978-01-01), Chartraire et al.

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