发明名称 |
Flatbed scanner and method for controlling same |
摘要 |
A flatbed scanner includes a transparent window and an optical ruler close to the transparent window along a scanning direction. The optical ruler has at least one oblique line arranged thereon. The flatbed scanner includes a scanner head having a scanning width larger than the width of the transparent window for capturing an image of the optical ruler while the scanner head is being progressively moved by a step motor. The flatbed scanner further includes a processing unit for calculating a jag width of a captured oblique line in the captured image and a controlling unit for controlling the step motor to adjust the speed of movement of the scanner head according to the jag width of the captured oblique line. |
申请公布号 |
US8717642(B2) |
申请公布日期 |
2014.05.06 |
申请号 |
US201213448499 |
申请日期 |
2012.04.17 |
申请人 |
CHEN CHIA-FU;HUANG KING-LUNG;HON HAI PRECISION INDUSTRY CO., LTD. |
发明人 |
CHEN CHIA-FU;HUANG KING-LUNG |
分类号 |
H04N1/04 |
主分类号 |
H04N1/04 |
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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