Systematic error correction in bar code scanner

Details Systematic error correction in bar code scanner Systematic error correction in bar code scanner

1981-05-18

1983-11-08

Pitts, Harold I.

Registers

Coded record sensors

Particular sensor structure

235463, G06K 710

Patent

active

044144687

ABSTRACT:
A technique for compensating for systematic errors in printing or reading bar codes is disclosed. Label decoding always begins with a center character and proceeds one character at a time toward a margin. When bar-space pair measurements indicate an ambiguous character (which can only be fully decoded using bar width measurements) error correction is based on the characteristics of the adjacent, previously decoded character.

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

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