Error correction in macro bar code symbols

Details Error correction in macro bar code symbols Error correction in macro bar code symbols

1998-01-28

2000-10-03

Lee, Michael G

Registers

Coded record sensors

Particular sensor structure

23546209, 235494, G06K 710, G06K 714

Patent

active

061260746

ABSTRACT:
A data encoding/decoding scheme includes a plurality of bar code symbols each carrying a portion of the data in which improved error correction capabilities are incorporated. According to one aspect, once data codewords have been derived to form the symbols, a first set of data correction elements are derived from a first field, then a second set of error correction elements are derived from the data elements and the first set of error correction elements using a second, wider field.

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