Decoding method for multicharacter labels

Details Decoding method for multicharacter labels Decoding method for multicharacter labels

1981-08-20

1983-12-20

Pitts, Harold I.

Registers

Coded record sensors

Particular sensor structure

235463, G06K 710

Patent

active

044219784

ABSTRACT:
In decoding a UPC-type label, a partial decode and majority vote technique is employed to select final values for ambiguous characters (i.e., 1-7, 2-8) appearing in the label. During the partial decode phase, character-identifying values are established for every character but a common value is assigned to any ambiguous character in a given subset of such characters. An ambiguity-resolving value is additionally assigned to an ambiguous character each time it appears. Through algebraic summation of the ambiguity-resolving values for each character position occupied by an ambiguous character, the ambiguous character which appears a majority of times in that position is finally selected.

REFERENCES:
patent: 4272675 (1981-06-01), Blanford
patent: 4354101 (1982-10-01), Hester

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