发明名称 |
Multi-line scan mark verification circuit |
摘要 |
In a document scanning scheme where data is preceded on the document by a preprinted document scan mark, circuitry is employed to utilize multiple line scans of the scan mark by a line scan camera to verify the presence of a scan mark and avoid erroneous response to random marks on the document.
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申请公布号 |
US4357596(A) |
申请公布日期 |
1982.11.02 |
申请号 |
US19800154742 |
申请日期 |
1980.05.30 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
FEILCHENFELD, MICHAL M. |
分类号 |
G06K7/10;(IPC1-7):G06K7/14 |
主分类号 |
G06K7/10 |
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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