Method and apparatus for decoding bar code symbols using indepen

Details Method and apparatus for decoding bar code symbols using indepen Method and apparatus for decoding bar code symbols using indepen

1993-01-29

1994-10-04

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

235463, 235470, G06K 710

Patent

active

053528786

ABSTRACT:
A bar code reader decodes a bar code symbol, one character at a time, by analyzing the spaces of each character independently from the bars of each character. The reader determines the widths of each space and each bar. The reader then determines a space-width threshold based on the widths of the spaces and a bar-width threshold based on the widths of the bars. The reader then classifies each space as being either narrow or wide by comparing each space to the space-width threshold. The reader also classifies each bar as being either narrow or wide by comparing each bar to the bar-width threshold. The reader then decodes the character according to the narrow/wide classifications.

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