| 发明名称 |
CCD Imager |
| 摘要 |
A CCD imager is provided with an adaptive threshold circuit. The variations in the illumination across the document being read by the imager are compensated for by the adaptive threshold circuit to accurately provide an accurate digital representation of the image on the document.
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| 申请公布号 |
US4351004(A) |
申请公布日期 |
1982.09.21 |
| 申请号 |
US19800117178 |
申请日期 |
1980.01.31 |
| 申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
CHOATE, WILLIAM C.;HO, DAVID S. |
| 分类号 |
G06K7/10;G06K9/38;H04N5/372;H04N5/376;(IPC1-7):H04N3/14 |
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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