发明名称 |
LABEL FIND METHOD AND CIRCUIT |
摘要 |
<p>LABEL FIND METHOD AND CIRCUIT A method and circuit for finding the beginning of valid coded information from a scanner reading a label such as the Universal Product Code (UPC) label establishes a plurality of counting gates based on a predetermined sequence of discrete signal transitions and counts a plurality of related pulse frequencies during the gating periods under control of the established counting gates. The accumulated counts are compared in a predetermined sequence to determine whether selected counts when compared bear a predetermined relationship to each other and a code generated indicative of the relationship which indicates the beginning of valid label data or invalid label data on a continuous basis</p> |
申请公布号 |
CA1101556(A) |
申请公布日期 |
1981.05.19 |
申请号 |
CA19780305324 |
申请日期 |
1978.06.13 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
COWARDIN, ROBERT L.;LAURER, GEORGE J. |
分类号 |
G06K7/016;G06K7/10;(IPC1-7):06K7/10;06K19/06 |
主分类号 |
G06K7/016 |
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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