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1. 发明授权

US06175429B1 Document reader and method for adjusting its focus 失效
标题翻译：文件阅读器和调整焦点的方法
公开(公告)号：US06175429B1
公开(公告)日：2001-01-16
申请号：US09040402
申请日：1998-03-18
申请人： Kenichi Nagaharu , Noriyuki Nouda
发明人： Kenichi Nagaharu , Noriyuki Nouda
IPC分类号： H04N104
CPC分类号： H04N1/00013 , G02B7/04 , H04N1/00031 , H04N1/00045 , H04N1/00063 , H04N1/00082 , H04N1/02409 , H04N1/03 , H04N1/1013 , H04N1/193
摘要： A focus adjusting plate 10 serving as a reference for focus adjustment is attached to a glass plane of a document stand 11, and a lens carriage 19 in a reading unit 1 is made movable minutely in a sub-scanning direction. The lens carriage is moved one pitch by one pitch within a minute movement range to read black stripes and white areas of the focus adjusting plate 10. The position of the lens carriage providing a maximum contrast is obtained, and the lens carriage 19 is fixed at the position. Thus, the optical path length L from the upper face of the glass plane of the document stand 11 to the lens 17 via mirrors 14, 15 and 16 is focus-adjusted. Accordingly, errors such as variations in accuracy in fabrication can be canceled to provide an image data in focus.
摘要翻译：作为焦点调整的基准的聚焦调整板10被安装在原稿支架11的玻璃平面上，读取单元1中的透镜滑架19沿副扫描方向微小地移动。镜头托架在微小运动范围内以一个间距移动一个间距，以读取焦点调节板10的黑色条纹和白色区域。获得提供最大对比度的透镜托架的位置，并将透镜托架19固定在的位置因此，通过焦点调整从文件支架11的玻璃面的上表面到透镜17的光路长度L经由镜14,15和16。因此，可以消除诸如制造精度的变化的错误以提供焦点上的图像数据。

2. 发明授权

US06765696B1 Image reading apparatus 有权
标题翻译：图像读取装置
公开(公告)号：US06765696B1
公开(公告)日：2004-07-20
申请号：US09716966
申请日：2000-11-22
申请人： Yoshihisa Motominami , Noriyuki Nouda
发明人： Yoshihisa Motominami , Noriyuki Nouda
IPC分类号： H04N140
CPC分类号： H04N1/00885 , H04N1/00891 , H04N1/00896
摘要： When an image reading apparatus (1) shifts from a standby condition to a power economizing state, a buffer (15) electrically disconnects a connection path 14. Subsequently, a switch 13 electrically disconnects a power supply path 12. When the image reading apparatus 1 shifts from a power economizing state to a standby condition, the switch 13 electrically connects the power supply path 12, thereby commencing the supply of power to an image pickup section 20. Subsequently, the buffer 15 electrically connects the connection path 14. Consequently, even in a case where the supply of power to the image pickup section 20 is stopped, an electric current will not flow from the image processing section 6 to an analog-to-digital converter 22. Thus, breakage of elements included in the analog-to-digital converter 22 can be prevented. Further, when the image reading apparatus 1 is in a power economizing state, the supply of power to the image pickup section 20 and the fan 10 as well as to a light source 51 is stopped. Therefore, the image reading apparatus 1 can reduce power consumption by a greater amount than does a related image reading apparatus which extinguishes only a light source.
摘要翻译：当图像读取装置（1）从待机状态转移到功率节省状态时，缓冲器（15）电连接路径14.电路断开电源路径12.当图像读取装置1 开关13将功率节省状态切换到备用状态，电连接供电路径12，从而开始向摄像部20供电。接着，缓冲器15电连接连接路径14.因此，在停止向摄像部20供电的情况下，电流不会从图像处理部6流向模数转换器22.因此，模拟到可以防止数字转换器22。此外，当图像读取装置1处于功率节省状态时，停止向摄像部20和风扇10以及光源51的供电。因此，与仅消除光源的相关图像读取装置相比，图像读取装置1能够减少功耗。

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