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1.发明授权公开(公告)号：US12108003B2
公开(公告)日：2024-10-01
申请号：US18450276
申请日：2023-08-15
发明人： Keisuke Ikemiya , Norikazu Honda
CPC分类号： H04N1/00774 , H04N1/00689 , H04N1/00692 , H04N1/00708 , H04N1/00734 , H04N1/03
摘要： An image reading apparatus includes a document table, a pressing plate that rotates about a rotation axis between an open position and a closed position, a line sensor that includes an image sensor arranged in a main scanning direction intersecting the rotation axis and outputs data by reading a document on the document table, and a control unit that determines presence or absence of the document based on first data acquired by the line sensor when the pressing plate is in an intermediate position before reaching the closed position and second data acquired by the line sensor when the pressing plate is in the closed position, wherein when the control unit determines the presence or absence of the document based on the first data and the second data, the control unit uses coefficient data that is smaller as a distance from the rotation axis is longer.
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公开(公告)号：US11647142B2
公开(公告)日：2023-05-09
申请号：US17484710
申请日：2021-09-24
CPC分类号： H04N1/0405 , H04N1/00822 , H04N1/031 , H04N2201/0094
摘要： An image reading apparatus comprises a first reading unit configured to output an analog signal by reading an original, a second reading unit different from the first reading unit, a conversion unit configured to convert analog signals outputted from the first reading unit and the second reading unit to digital signals, a wire connection control unit configured to control wire connection between the first reading unit and the second reading unit, and the conversion unit, and an output control unit configured to control an output of an analog signal from the first reading unit.
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公开(公告)号：US10554844B2
公开(公告)日：2020-02-04
申请号：US16280258
申请日：2019-02-20
摘要： An image scanning apparatus determines whether there is an influence of external light from the outside of the image scanning apparatus on scanning; decides a correction value corresponding to each of a plurality of sensors based on received light amounts of at least some of the plurality of sensors; and corrects, using the correction value corresponding to each of the plurality of sensors and decided, data corresponding to a received light amount of each of the plurality of sensors when scanning the original, wherein if it is determined that there is the influence of the external light, the image scanning apparatus decides the correction value corresponding to a first sensor and the correction value corresponding to a second sensor arranged at a position that is readily influenced by the external light based on the received light amount of the first sensor.
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公开(公告)号：US10015325B2
公开(公告)日：2018-07-03
申请号：US14798010
申请日：2015-07-13
发明人： Norikazu Honda
CPC分类号： H04N1/00037 , H04N1/00013 , H04N1/0005 , H04N1/00074 , H04N1/00824 , H04N17/002
摘要： An image reading apparatus includes a reading unit that has multiple pixels for performing image reading, a driving unit that outputs a driving signal to the pixels of the reading unit, and a connection unit that connects the reading unit to the main body of the image reading apparatus. An identification signal is inserted by the driving unit at a specific pixel among ineffective pixels that do not react to external light among the pixels of the reading unit, and detection of whether or not the reading unit is connected correctly to the main body of the image reading apparatus by the connection unit is performed by examining the signal level of the specific pixel.
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公开(公告)号：US20190281179A1
公开(公告)日：2019-09-12
申请号：US16280258
申请日：2019-02-20
摘要： An image scanning apparatus determines whether there is an influence of external light from the outside of the image scanning apparatus on scanning; decides a correction value corresponding to each of a plurality of sensors based on received light amounts of at least some of the plurality of sensors; and corrects, using the correction value corresponding to each of the plurality of sensors and decided, data corresponding to a received light amount of each of the plurality of sensors when scanning the original, wherein if it is determined that there is the influence of the external light, the image scanning apparatus decides the correction value corresponding to a first sensor and the correction value corresponding to a second sensor arranged at a position that is readily influenced by the external light based on the received light amount of the first sensor.
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公开(公告)号：US20220103712A1
公开(公告)日：2022-03-31
申请号：US17484710
申请日：2021-09-24
摘要： An image reading apparatus comprises a first reading unit configured to output an analog signal by reading an original, a second reading unit different from the first reading unit, a conversion unit configured to convert analog signals outputted from the first reading unit and the second reading unit to digital signals, a wire connection control unit configured to control wire connection between the first reading unit and the second reading unit, and the conversion unit, and an output control unit configured to control an output of an analog signal from the first reading unit.
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7.发明申请公开(公告)号：US20160036997A1
公开(公告)日：2016-02-04
申请号：US14798010
申请日：2015-07-13
发明人： Norikazu Honda
CPC分类号： H04N1/00037 , H04N1/00013 , H04N1/0005 , H04N1/00074 , H04N1/00824 , H04N17/002
摘要： An image reading apparatus includes a reading unit that has multiple pixels for performing image reading, a driving unit that outputs a driving signal to the pixels of the reading unit, and a connection unit that connects the reading unit to the main body of the image reading apparatus. An identification signal is inserted by the driving unit at a specific pixel among ineffective pixels that do not react to external light among the pixels of the reading unit, and detection of whether or not the reading unit is connected correctly to the main body of the image reading apparatus by the connection unit is performed by examining the signal level of the specific pixel.
摘要翻译： 图像读取装置包括具有用于执行图像读取的多个像素的读取单元，向读取单元的像素输出驱动信号的驱动单元和将读取单元连接到图像读取主体的连接单元 仪器。 驱动单元在识别单元的像素中不对外界光反应的无效像素中的特定像素插入识别信号，并且检测读取单元是否正确地连接到图像的主体 通过检查特定像素的信号电平来执行连接单元的读取装置。
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