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    IMAGE SCANNER
    1.
    发明申请
    IMAGE SCANNER 审中-公开

    公开(公告)号：US20190191054A1

    公开(公告)日：2019-06-20

    申请号：US16216050

    申请日：2018-12-11

    申请人： BROTHER KOGYO KABUSHIKI KAISHA

    发明人： Takashi MATSUMI

    IPC分类号： H04N1/401 ,  H04N1/00

    CPC分类号： H04N1/401 ,  H04N1/00551 ,  H04N1/00835 ,  H04N1/00997

    摘要： A circuit acquires, as white correction data, read image data generated by reading an image of a reference member when light of each of three colors of a light source is sequentially emitted to the reference member; acquires, as original document image data, the read image data generated by moving the image sensor and by reading, with an image sensor, an image of an original document; determines, as an original document non-existence position, a position of a pixel at which all of the original document image red, green, and blue data have a same value; converts the original document image data to output image data by performing shading correction on the original document image data based on white correction data; and replaces the output image data at the original document non-existence position with a value closer to data indicative of white color than a value of the output image data.

    System and method for low light document capture and binarization with multiple flash images
    3.
    发明授权
    System and method for low light document capture and binarization with multiple flash images 有权

    公开(公告)号：US09807269B2

    公开(公告)日：2017-10-31

    申请号：US14713077

    申请日：2015-05-15

    申请人： Xerox Corporation

    发明人： Jayant Kumar ,  Raja Bala ,  Martin S. Maltz ,  Phillip J Emmett

    IPC分类号： H04N1/024 ,  H04N1/387 ,  H04N1/00 ,  G06T5/00 ,  G06T5/50 ,  H04N1/028

    CPC分类号： H04N1/00997 ,  G06T5/007 ,  G06T5/50 ,  G06T2207/20221 ,  G06T2207/30176 ,  H04N1/028

    摘要： The embodiments include systems and methods for guiding a user to capture two flash images of a document page, and selectively fuse the images to produce a binary image of high quality and without loss of any content. Each individual image may have an FSR where the content is degraded/lost due to the flash light. The idea is to first guide the user to take two images such that there is no overlap of flash-spots in the document regions. The flash spots in both images are detected and assessed for quality and extent of degradation in both images. The image with lower degradation is chosen as the primary image and the other image as secondary, to minimize fusing artifacts. The region in secondary image corresponding to the FSR in the primary is aligned to the primary region using a multiscale alignment technique. The primary image and aligned FSR are binarized and fused in the vicinity of the flashspot in the primary using an intelligent technique that minimizes fusion boundary artifacts such as cutting of characters and words.

    Image scanner with dividing member
    5.
    发明授权
    Image scanner with dividing member 有权
    图像扫描器与分割成员

    公开(公告)号：US09473664B2

    公开(公告)日：2016-10-18

    申请号：US14845718

    申请日：2015-09-04

    申请人： Brother Kogyo Kabushiki Kaisha

    发明人： Takahiro Ikeno ,  Yoichi Susaki

    IPC分类号： H04N1/00 ,  H04N1/10 ,  H04N1/193 ,  H04N1/407 ,  H04N1/04 ,  H04N1/12

    CPC分类号： H04N1/00997 ,  H04N1/00615 ,  H04N1/0313 ,  H04N1/0464 ,  H04N1/1017 ,  H04N1/1061 ,  H04N1/12 ,  H04N1/123 ,  H04N1/193 ,  H04N1/4076 ,  H04N2201/0081 ,  H04N2201/0094 ,  H04N2201/0422 ,  H04N2201/044

    摘要： An image scanner includes a transparent plate, a scanning device, a driving device, a positioning member, a light absorbing portion and a white reference portion. The transparent plate has an original placing surface. The scanning device irradiates an original with light by means of a light source and scans reflected light from the original. The driving device reciprocates the scanning device along the transparent plate. The positioning member positions the original placed on the original placing surface of the transparent plate. The light absorbing portion, which is disposed on the original placing surface side of the positioning member and at substantially a central portion of the positioning member in moving directions of the scanning device, absorbs ambient light entering to the original placing surface side of the positioning member through the transparent plate. The white reference portion is provided to the original placing surface side of the positioning member.

    摘要翻译： 图像扫描器包括透明板，扫描装置，驱动装置，定位构件，光吸收部分和白色基准部分。 透明板具有原始放置面。 扫描装置利用光源照射原稿并扫描来自原稿的反射光。 驱动装置沿着透明板往复移动扫描装置。 定位构件使放置在透明板的原始放置表面上的原稿定位。 设置在定位构件的原始放置面侧的光吸收部和位于扫描装置的移动方向上的定位构件的大致中央部的吸光部吸收进入定位构件的原始放置面侧的环境光 通过透明板。 白色基准部分设置在定位部件的原始放置面侧。

    SEMICONDUCTOR MEMORY WITH THRESHOLD CURRENT SETTING CIRCUIT
    6.
    发明申请
    SEMICONDUCTOR MEMORY WITH THRESHOLD CURRENT SETTING CIRCUIT 审中-公开
    具有阈值电流设定电路的半导体存储器

    公开(公告)号：US20160134250A1

    公开(公告)日：2016-05-12

    申请号：US15000158

    申请日：2016-01-19

    申请人： Renesas Electronics Corporation

    发明人： Hitoshi Imai ,  Hirotatsu Tanaka

    IPC分类号： H03F3/08

    CPC分类号： H03F3/087 ,  H03F3/082 ,  H04N1/00997 ,  H04N2201/02497 ,  H04N2201/03166

    摘要： A semiconductor device includes a first trans-impedance amplifier, a second trans-impedance amplifier, a peak hold circuit, a comparator and a threshold current setting circuit. The first trans-impedance amplifier converts a first current signal generated by a first photodiode, into which an optical signal is input, into a first voltage signal. The second trans-impedance amplifier converts a second current signal generated by a second photodiode, to which an optical signal is blocked, into a second voltage signal. The peak hold circuit holds the peak value of the first voltage signal. The comparator outputs a pulse on the basis of the first and second voltage signals. The threshold current setting circuit draws out a threshold current.

    摘要翻译： 半导体器件包括第一跨阻抗放大器，第二跨阻抗放大器，峰值保持电路，比较器和阈值电流设置电路。 第一跨阻抗放大器将由输入光信号的第一光电二极管产生的第一电流信号转换为第一电压信号。 第二跨阻抗放大器将由光信号被阻挡的第二光电二极管产生的第二电流信号转换为第二电压信号。 峰值保持电路保持第一电压信号的峰值。 比较器基于第一和第二电压信号输出脉冲。 阈值电流设定电路抽出阈值电流。

    Semiconductor memory with threshold current setting circuit
    8.
    发明授权
    Semiconductor memory with threshold current setting circuit 有权
    具有阈值电流设定电路的半导体存储器

    公开(公告)号：US09270237B2

    公开(公告)日：2016-02-23

    申请号：US14063747

    申请日：2013-10-25

    申请人： Renesas Electronics Corporation

    发明人： Hitoshi Imai ,  Hirotatsu Tanaka

    IPC分类号： H03F3/08 ,  H04N1/00

    CPC分类号： H03F3/087 ,  H03F3/082 ,  H04N1/00997 ,  H04N2201/02497 ,  H04N2201/03166

    摘要： A semiconductor device includes a first trans-impedance amplifier, a second trans-impedance amplifier, a peak hold circuit, a comparator and a threshold current setting circuit. The first trans-impedance amplifier converts a first current signal generated by a first photodiode, into which an optical signal is input, into a first voltage signal. The second trans-impedance amplifier converts a second current signal generated by a second photodiode, to which an optical signal is blocked, into a second voltage signal. The peak hold circuit holds the peak value of the first voltage signal. The comparator outputs a pulse on the basis of the first and second voltage signals. The threshold current setting circuit draws out a threshold current.

    摘要翻译： 半导体器件包括第一跨阻抗放大器，第二跨阻抗放大器，峰值保持电路，比较器和阈值电流设置电路。 第一跨阻抗放大器将由输入光信号的第一光电二极管产生的第一电流信号转换为第一电压信号。 第二跨阻抗放大器将由光信号被阻挡的第二光电二极管产生的第二电流信号转换为第二电压信号。 峰值保持电路保持第一电压信号的峰值。 比较器基于第一和第二电压信号输出脉冲。 阈值电流设定电路抽出阈值电流。

    Light source unit of image-reading apparatus and image-reading apparatus with light source unit
    9.
    发明授权
    Light source unit of image-reading apparatus and image-reading apparatus with light source unit 有权
    图像读取装置的光源单元和具有光源单元的图像读取装置

    公开(公告)号：US09253363B2

    公开(公告)日：2016-02-02

    申请号：US14243595

    申请日：2014-04-02

    申请人： PFU Limited

    发明人： Hideaki Shibata ,  Keisuke Kokuma

    IPC分类号： H04N1/04 ,  H04N1/32

    CPC分类号： H04N1/32646 ,  H04N1/00997 ,  H04N1/02845 ,  H04N1/0289

    摘要： An image-reading apparatus includes a light source unit that includes, a light source section on which a plurality of light-emitting elements that emit light toward a medium whose image is read by an image-capturing unit are arranged in a main-scanning direction, and a diffusion unit that diffuses therein the light emitted from the light-emitting elements, wherein a rib provided in a frame of the image-reading apparatus, the rib being capable of being fitted with a cutout portion, the light source section includes a connector provided at one end of the main-scanning direction and the cutout portion provided at the other end of the main-scanning direction, the diffusion unit has a shape through which the light source section is inserted, and a size of the diffusion unit in the main-scanning direction is equal to or shorter than a distance between the connector and the cutout portion.

    摘要翻译： 一种图像读取装置，包括光源单元，该光源单元包括：光源部，其上朝向其图像被图像拍摄单元读取的图像发射光的多个发光元件沿主扫描方向排列 以及漫射单元，其在其中漫射从发光元件发射的光，其中设置在图像读取装置的框架中的肋，所述肋能够装配有切口部，所述光源部包括： 连接器设置在主扫描方向的一端和设置在主扫描方向另一端的切口部分，扩散单元具有插入光源部的形状，扩散单元的尺寸在 主扫描方向等于或短于连接器和切口部分之间的距离。

    Image reader and image processing apparatus
    10.
    发明授权
    Image reader and image processing apparatus 有权
    图像读取器和图像处理装置

    公开(公告)号：US09225865B2

    公开(公告)日：2015-12-29

    申请号：US14664942

    申请日：2015-03-23

    申请人： KYOCERA Document Solutions Inc.

    发明人： Shinya Matsui

    IPC分类号： H04N1/46 ,  H04N1/00 ,  H04N1/024 ,  H04N1/028

    CPC分类号： H04N1/00997 ,  H04N1/00835 ,  H04N1/04

    摘要： An image reader includes a platen, a carriage, a light shielding unit, a positioning mark, an ambient light detecting unit, and a control unit. The positioning mark is arranged in an area in which the light shielding unit is disposed or in an area adjacent in a main scanning direction to the area in which the light shielding unit is disposed, at a position falling within the range that can be read by the carriage. When the ambient light detecting unit detects the presence of ambient light, the control unit causes the carriage to move with the exposure lamp turned off to detect a position of the positioning mark. When the ambient light detecting unit detects the absence of ambient light, the control unit causes the carriage to move with the exposure lamp turned on to detect the position of the positioning mark.

    摘要翻译： 图像读取器包括压板，滑架，遮光单元，定位标记，环境光检测单元和控制单元。 定位标记布置在其中设置有遮光单元的区域中，或者在与主扫描方向相邻的区域中布置有遮光单元的区域处于位于可以被遮光单元读取的范围内的位置 马车。 当环境光检测单元检测到环境光的存在时，控制单元使得滑架随着曝光灯关闭而移动，以检测定位标记的位置。 当环境光检测单元检测到没有环境光时，控制单元使得滑架随着曝光灯开启而移动以检测定位标记的位置。