发明名称 |
Original table for reading images |
摘要 |
According to this invention, since black regions are provided along the advancing direction on an original plate, the dark-time output levels of the linear sensor would not be affected by dust adhered on the original plate or the presence of trimming lines. Since a calibration region is provided, the circuit system can be calibrated with the maximum and minimum values of the signals from the linear sensor to thereby achieve more precise reading of images.
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申请公布号 |
US4974098(A) |
申请公布日期 |
1990.11.27 |
申请号 |
US19880236961 |
申请日期 |
1988.08.26 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
MIYAKAWA, TADASHI;INODA, MASAHIRO;IBA, KUNIO |
分类号 |
H04N1/407 |
主分类号 |
H04N1/407 |
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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