Registers – Records – Particular code pattern
Reexamination Certificate
2006-04-18
2006-04-18
Le, Thien M. (Department: 2876)
Registers
Records
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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Chang Zhi-guo
Cheung Wai
Ding Shillin
Lv Ying-feng
Chu Roger
Le Thien M.
Le Uyen-Chau N.
Shenzhen Syscan Technology Co. Limited
Zheng Joe
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