Method and apparatus for recognizing code information

Details Method and apparatus for recognizing code information Method and apparatus for recognizing code information

1977-07-25

1979-01-30

Kilgore, Robert M.

Registers

Coded record sensors

Particular sensor structure

235454, 235437, 250568, 354 25, G06K 714, G03B 708, G06K 500

Patent

active

041368215

ABSTRACT:
A light source, a converging lens and a light responsive image sensor are optically coupled to recognize the code information such as bar codes recorded on an object. The light source supplies the code information with illumination light and the image sensor receives the reflected light through the converging lens to convert it into the image signal. The distance between the lens and the image sensor is adjusted automatically in response to the image signal such that clear reflected light is received by the image sensor, whereby correct information recognizing operation is attained.

REFERENCES:
patent: 2928953 (1960-03-01), Bassler
patent: 3643066 (1972-02-01), Coliz
patent: 3676645 (1972-07-01), Fickenscher
patent: 3896304 (1975-07-01), Aoki

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