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    • 11. 发明授权
    • Image reading apparatus
    • 图像读取装置
    • US08310733B2
    • 2012-11-13
    • US12555284
    • 2009-09-08
    • Nobuo SekiguchiShigemichi HamanoKenji MoritaAkiko KannoSatoshi Seki
    • Nobuo SekiguchiShigemichi HamanoKenji MoritaAkiko KannoSatoshi Seki
    • H04N1/04H04N1/46H04N1/60H04N1/40G06F3/12G06K15/00G06K9/00G03G15/08G03G15/00
    • H04N1/40
    • An image reading apparatus that, in a case where the light amount of light illuminated from an image reading lamp has decreased, maintains the quality of a read image without decreasing productivity, and a method for controlling that image reading apparatus, are provided. To accomplish this, this image reading apparatus is provided with RGB line sensors that read a color image, and a monochrome line sensor that reads a monochrome image and has a faster horizontal transfer speed than the RGB line sensors. Further, this image reading apparatus reads a monochrome image using the RGB line sensors even in a monochrome mode in a case where the light amount of the lamp for illuminating an original decreases and so an output level for reading an image with good quality cannot be obtained from the monochrome line sensor.
    • 一种图像读取装置,在从图像读取灯照射的光的光量减少的情况下,保持读取图像的质量而不降低生产率,并且提供了一种用于控制该图像读取装置的方法。 为了实现这一点,该图像读取装置设置有读取彩色图像的RGB线传感器和读取单色图像并且具有比RGB线传感器更快的水平传送速度的单色线传感器。 此外,即使在用于照亮原稿的灯的光量减少的情况下,即使在单色模式下,该图像读取装置也使用RGB线传感器读取单色图像,因此不能获得用于读取质量好的图像的输出电平 从单色线传感器。
    • 17. 发明申请
    • DOCUMENT READER
    • 文件阅读器
    • US20120154879A1
    • 2012-06-21
    • US13316048
    • 2011-12-09
    • Kenji MoritaAkiko KannoSatoshi SekiYohei Katto
    • Kenji MoritaAkiko KannoSatoshi SekiYohei Katto
    • G03F3/08H04N1/40
    • H04N1/407
    • Generation of shading correction data is started before an instruction to start reading of the document is input in a case in which time to generate shading correction data corresponding to a document reading mode is longer than time since the instruction to start reading of the document is received until the document is fed to reach a reading point, and generation of shading correction data is started after an instruction to start reading of the document is input in a case in which time to generate shading correction data corresponding to a document reading mode is shorter than time since the instruction to start reading of the document is received until the document is fed to reach a reading point.
    • 在从开始读取文档的指令被接收到的情况下,在生成与文档读取模式相对应的阴影校正数据的时间长于时间的情况下,在开始读取文档的指令之前开始阴影校正数据的生成 直到文件被馈送以到达读取点,并且在生成对文档读取模式相对应的阴影校正数据的时间短的情况下,在开始读取文档的指令之后开始阴影校正数据的生成 从文件开始读取的指示开始到文件被馈送到达读取点之前的时间。