Encoded symbol reader which determines the uniformity of brightn

Details Encoded symbol reader which determines the uniformity of brightn Encoded symbol reader which determines the uniformity of brightn

1995-03-16

1997-04-15

Hajec, Donald T.

Registers

Coded record sensors

Particular sensor structure

348364, G06K 710

Patent

active

056212020

ABSTRACT:
In an encoded symbol that is read by an encoded symbol reader, an image of the encoded symbol is read and a ratio of a minimum and maximum values of the electrical signals corresponding to the image is determined. If the ratio is larger than a predetermined value, the brightness of the image is determined to be uniform.

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