公开(公告)号：US08508807B2

公开(公告)日：2013-08-13

申请号：US12568219

申请日：2009-09-28

申请人： Akihiko Tanaka ,  Kazuaki Shintani ,  Shinichi Gono ,  Yosuke Takebe ,  Mitsugu Kamio ,  Mayumi Tada

发明人： Akihiko Tanaka ,  Kazuaki Shintani ,  Shinichi Gono ,  Yosuke Takebe ,  Mitsugu Kamio ,  Mayumi Tada

IPC分类号： H04N1/04 ,  H04N1/40

CPC分类号： H04N1/401

摘要： The present invention provides an image reading apparatus that includes: a photoelectric sensor including plural reading pixels aligned in one direction and output an electric signal depending on the amount of light from an image on the document; a read control section that reads a document image with the photoelectric sensor in accordance with a read instruction, and obtains image data; a black correction section that performs a black correction to adjust an output under dark condition of each reading pixel to a value within a predetermined range, the output under dark condition being an electric signal output when the amount of light input is zero; and a black correction execution determining section that determines whether to perform the black correction, when the read interval between each two document sheets of the multi-page document is equal to or shorter than a predetermined period of time.

摘要翻译： 本发明提供一种图像读取装置，其特征在于，包括：光电传感器，其包括沿一个方向排列的多个读取像素，并根据来自所述文件上的图像的光量输出电信号; 读取控制部分，其根据读取的指令用光电传感器读取文档图像，并获得图像数据; 黑色校正部，其执行黑色校正，以将每个读取像素的黑暗条件下的输出调整到预定范围内的值，在黑色条件下的输出是当光输入量为零时的电信号输出; 以及当所述多页文档的每两个文档页之间的读取间隔等于或短于预定时间段时，确定是否执行黑色校正的黑色校正执行确定部分。

公开(公告)号：US20100182652A1

公开(公告)日：2010-07-22

申请号：US12568219

申请日：2009-09-28

申请人： Akihiko TANAKA ,  Kazuaki Shintani ,  Shinichi Gono ,  Yosuke Takebe ,  Mitsugu Kamio ,  Mayumi Tada

发明人： Akihiko TANAKA ,  Kazuaki Shintani ,  Shinichi Gono ,  Yosuke Takebe ,  Mitsugu Kamio ,  Mayumi Tada

IPC分类号： H04N1/40

CPC分类号： H04N1/401

摘要： The present invention provides an image reading apparatus that includes: a photoelectric sensor including plural reading pixels aligned in one direction and output an electric signal depending on the amount of light from an image on the document; a read control section that reads a document image with the photoelectric sensor in accordance with a read instruction, and obtains image data; a black correction section that performs a black correction to adjust an output under dark condition of each reading pixel to a value within a predetermined range, the output under dark condition being an electric signal output when the amount of light input is zero; and a black correction execution determining section that determines whether to perform the black correction, when the read interval between each two document sheets of the multi-page document is equal to or shorter than a predetermined period of time.

摘要翻译： 本发明提供一种图像读取装置，其特征在于，包括：光电传感器，其包括沿一个方向排列的多个读取像素，并根据来自所述文件上的图像的光量输出电信号; 读取控制部分，其根据读取的指令用光电传感器读取文档图像，并获得图像数据; 黑色校正部，其执行黑色校正，以将每个读取像素的黑暗条件下的输出调整到预定范围内的值，在黑色条件下的输出是当光输入量为零时的电信号输出; 以及当所述多页文档的每两个文档页之间的读取间隔等于或短于预定时间段时，确定是否执行黑色校正的黑色校正执行确定部分。