发明名称 |
Coded label and code reader for the coded label |
摘要 |
A coded label comprising a code pattern in which first and second segments respectively being substantially square and having reflection factors different from each other are arranged in at least four rows and two columns, and in which at least two of either of the first and second segments are arranged in each column and at least one is arranged in each of the uppermost and lowermost rows.
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申请公布号 |
US4286146(A) |
申请公布日期 |
1981.08.25 |
申请号 |
US19790003011 |
申请日期 |
1979.01.12 |
申请人 |
HITACHI, LTD. |
发明人 |
UNO, TAKESHI;UEDA, HIROTADA;IKEDA, SADAHIRO;EJIRI, MASAKAZU;MATSUOKA, SHINJI |
分类号 |
G06K19/00;G06K19/06;(IPC1-7):G06K7/10;G06K9/00 |
主分类号 |
G06K19/00 |
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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