Methods and systems for encoding and decoding data in 2D...

Details Methods and systems for encoding and decoding data in 2D... Methods and systems for encoding and decoding data in 2D...

2006-04-18

2006-04-18

Le, Thien M. (Department: 2876)

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Particular code pattern

C235S462090

Reexamination Certificate

active

07028911

ABSTRACT:
Methods and systems for encoding and decoding a 2D symbol is disclosed. According to one aspect of the 2D symbol, the following characteristics are realized: 1) variable symbol widths and height; 2) variable print resolution, 3) multiple damage protection levels; 4) large information storage; 5) high redundancy; 6) readable by line based scanning devices; 7) recognizable by either contact scanning or non-contact scanning devices. In addition, a set of positioning lines are attached 2D symbol for guiding scanning devices to decode the 2D symbol with proper resolution.

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