发明名称 |
Method of decoding coding pattern comprising control symbols |
摘要 |
A method of decoding a coding pattern disposed on or in a substrate. The method comprises the steps of: (a) operatively positioning an optical reader relative to a surface of the substrate; (b) capturing an image of a portion of the coding pattern; (c) sampling and decoding control symbols contained in the imaged portion to provide r1 registration symbols and r2 second symbols; (d) constructing an imaged registration codeword of length r1 using the registration symbols ordered in a defined sequence; (e) identifying a distinct registration codeword corresponding to the imaged registration codeword; (f) determining a registration corresponding to the identified registration codeword; (g) constructing an imaged format codeword of length m using the determined registration and some of the r2 second symbols; (h) identifying a distinct format codeword corresponding to the imaged format codeword; (i) determining a distinct format corresponding to the identified format codeword; and (j) using the determined registration and the determined format to decode data symbols sampled from the imaged portion. |
申请公布号 |
US8276828(B2) |
申请公布日期 |
2012.10.02 |
申请号 |
US20100694275 |
申请日期 |
2010.01.27 |
申请人 |
LAPSTUN PAUL;NAPPER JONATHON LEIGH;SILVERBROOK RESEARCH PTY LTD |
发明人 |
LAPSTUN PAUL;NAPPER JONATHON LEIGH |
分类号 |
G06K19/06 |
主分类号 |
G06K19/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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