Image reading apparatus and image forming apparatus
    3.
    发明授权
    Image reading apparatus and image forming apparatus 有权
    图像读取装置和图像形成装置

    公开(公告)号:US08564859B2

    公开(公告)日:2013-10-22

    申请号:US13202132

    申请日:2010-01-28

    IPC分类号: H04N1/46

    摘要: An image reading apparatus comprises: an image reading unit that includes a platen glass and a color contact image sensor configured by a line image sensor for reading red, a line image sensor for reading green, and a line image sensor for reading blue, the line image sensors being disposed in a sub-scanning direction of an original; and an automatic original feeder. In the image reading apparatus, the line image sensor for reading red and the line image sensor for reading green are disposed so that a line gap therebetween is two lines, and in a monochrome mode in which a color original is read and output as a monochrome image, the color original is read using the line image sensor for reading red and the line image sensor for reading green.

    摘要翻译: 一种图像读取装置,包括:图像读取单元,其包括台板玻璃和由用于读取红色的线形图像传感器构成的彩色接触图像传感器,用于读取绿色的线形图像传感器和用于读取蓝色的线形图像传感器, 图像传感器沿原稿的副扫描方向设置; 和自动原稿进纸器。 在图像读取装置中,用于读取红色的线形图像传感器和用于读取绿色的线形图像传感器被布置成使得它们之间的线间隔为两条线,并且在以单色方式读取并输出彩色原稿作为单色 图像,使用用于读取红色的线路图像传感器和用于读取绿色的线形图像传感器读取彩色原稿。

    Document read apparatus and image forming apparatus
    4.
    发明授权
    Document read apparatus and image forming apparatus 有权
    文件读取装置和图像形成装置

    公开(公告)号:US08228568B2

    公开(公告)日:2012-07-24

    申请号:US12469038

    申请日:2009-05-20

    IPC分类号: H04N1/04 H04N1/46

    摘要: The document read apparatus according to the present invention has a light source unit that includes a linear first light and second light sources, both light sources aligned parallel to the sub scanning direction (moving direction). When the light source unit is scanning a book document in a second region shifted toward a side of the first light source from a center position for emitting light to the center of the document, a light quantity of the second light source becomes larger than a light quantity of the first light source. When the light source unit is scanning the book document in a third region shifted toward a side of the second light source from the center position, the light quantity of the first light source becomes larger than the light quantity of the second light source. A sum of both light quantities is controlled to be constant.

    摘要翻译: 根据本发明的文件读取装置具有光源单元,其包括线性第一光和第二光源,两个光源平行于副扫描方向(移动方向)排列。 当光源单元从用于发射光的中心位置到文档的中心的第二区域中扫描第二区域中的书本文档时,第二光源的光量变得大于光 第一光源的数量。 当光源单元从从中心位置向第二光源侧移动的第三区域扫描书本文档时,第一光源的光量变得大于第二光源的光量。 将两个光量的总和控制为恒定。

    IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS INCUDING THE SAME
    5.
    发明申请
    IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS INCUDING THE SAME 审中-公开
    图像读取装置和形成装置的图像形成装置

    公开(公告)号:US20110181921A1

    公开(公告)日:2011-07-28

    申请号:US12987385

    申请日:2011-01-10

    IPC分类号: H04N1/04

    摘要: An image reading apparatus of the present invention includes a photoelectric transducer that performs reading scanning along a main scanning line and reads an original, the image reading apparatus obtaining a white shading level of pixels based on an output level of the photoelectric transducer obtained when a reference white is read, obtaining a black shading level of the pixels based on an output level of the photoelectric transducer obtained when a black reference is read or obtained in a dark condition, and correcting the output level of the photoelectric transducer obtained when an original image is read with the use of the white shading level and the black shading level, and the image reading apparatus further comprising a correction unit that obtains a variation amount of the white shading level between a pixel and other pixels in the vicinity of that pixel for each of pixels on the main scanning line, determines whether the variation amount exceeds a pre-set threshold value, and when the correction unit determines that the variation amount exceeds the threshold value, corrects the black shading level of the pixel subject to that determination to increase the black shading level.

    摘要翻译: 本发明的图像读取装置具有:沿着主扫描线进行读取扫描并读取原稿的光电变换器,所述图像读取装置基于当基准时获得的光电转换器的输出电平获得像素的白色阴影电平 基于当在黑暗条件下读取或获得黑色参考时获得的光电转换器的输出电平,并且校正当原始图像为原始图像时获得的光电转换器的输出电平,从而获得黑色黑色阴影电平 通过使用白色阴影电平和黑色阴影电平来读取,并且图像读取装置还包括校正单元,该校正单元获得像素与该像素附近的其他像素之间的白色阴影电平的变化量, 主扫描线上的像素,确定变化量是否超过预设阈值a 当校正单元确定变化量超过阈值时,校正经过该确定的像素的黑色阴影水平以增加黑色阴影水平。

    Document reading apparatus and image processing method
    6.
    发明授权
    Document reading apparatus and image processing method 有权
    文件阅读装置和图像处理方法

    公开(公告)号:US07924476B2

    公开(公告)日:2011-04-12

    申请号:US11784265

    申请日:2007-04-06

    IPC分类号: H04N1/04

    摘要: A document table is provided with a first chart portion and a second chart portion. In each of the first chart portion and the second chart portion, a reference chart is formed. The first chart portion is disposed at an upstream chart position, and the second chart portion is disposed at a downstream-side position located away in a sub-scanning direction from the upstream chart position. On the basis of respective chart images of the first chart portion and second chart portion obtained from respective reference charts of the first and second chart portions read by a document reading portion, the image processing portion obtains respective sharpening levels for respective image areas of a document image of a document read by the document reading portion and, based on the respective sharpening levels, processes the document image.

    摘要翻译: 文件表具有第一图表部分和第二图表部分。 在第一图表部分和第二图表部分的每一个中,形成参考图。 第一图表部分设置在上游图表位置,第二图表部分设置在远离上游图表位置的副扫描方向上的下游位置。 基于由文件读取部分读取的第一和第二图表部分的各个参考图表获得的第一图表部分和第二图表部分的各个图表图像,图像处理部分获得文档的各个图像区域的相应锐化水平 由文档读取部分读取的文档的图像,并且基于相应的锐化级别处理文档图像。

    Document reading apparatus and method of calculating position adjustment amount
    7.
    发明授权
    Document reading apparatus and method of calculating position adjustment amount 有权
    文件阅读装置和计算位置调整量的方法

    公开(公告)号:US07688483B2

    公开(公告)日:2010-03-30

    申请号:US11829158

    申请日:2007-07-27

    IPC分类号: H04N1/04

    摘要: A document reading apparatus including: a first scanning section that moves in a scanning direction along a document surface, for supporting a first mirror to reflect an image of a document in a direction parallel to the scanning direction; an intermediate scanning section that moves synchronous with the first scanning section, for supporting an intermediate mirror to reflect the image of the document reflected by the first mirror in a direction opposite from an incident direction of the image; a reading section including an imaging sensor for reading the image of a scanned document and a focusing lens for focusing the image of the document reflected by the intermediate mirror on the imaging sensor; a driving wire for pulling the first scanning section in the scanning direction; a supporting pulley for supporting the driving wire at a starting side for scanning or at an ending side for scanning; a position adjustment section capable of adjusting a position of the supporting pulley in its axial direction; a control section for performing such control that the image for adjustment is read by the reading section when the first scanning section is located at a first position and at a second position in the scanning direction, and an adjustment amount of the position adjustment section is calculated based on a readout result of the image; and an output section for outputting the calculated adjustment amount.

    摘要翻译: 一种文件读取装置,包括:第一扫描部,其沿文件表面沿扫描方向移动,用于支撑第一反射镜以在与扫描方向平行的方向上反射原稿的图像; 中间扫描部,其与第一扫描部同步移动,用于支撑中间反射镜,以反射与第一反射镜反射的文件的图像在与图像的入射方向相反的方向上; 读取部分,包括用于读取扫描文档的图像的成像传感器和用于将由中间反射镜反射的原稿的图像聚焦在成像传感器上的聚焦透镜; 用于沿扫描方向拉动第一扫描部分的驱动线; 用于在用于扫描的起始侧支撑驱动线的支撑皮带轮或用于扫描的终止侧; 位置调整部,其能够调整所述支撑皮带轮的轴向位置; 控制部分,用于当第一扫描部分位于扫描方向上的第一位置和第二位置时,由读取部分读取调节图像,并且计算位置调整部分的调整量 基于图像的读出结果; 以及输出部,用于输出计算出的调整量。

    DOCUMENT READING APPARATUS AND METHOD OF CALCULATING POSITION ADJUSTMENT AMOUNT
    9.
    发明申请
    DOCUMENT READING APPARATUS AND METHOD OF CALCULATING POSITION ADJUSTMENT AMOUNT 有权
    文件读取装置和计算位置调整金额的方法

    公开(公告)号:US20080024839A1

    公开(公告)日:2008-01-31

    申请号:US11829158

    申请日:2007-07-27

    IPC分类号: H04N1/028

    摘要: A document reading apparatus including: a first scanning section that moves in a scanning direction along a document surface, for supporting a first mirror to reflect an image of a document in a direction parallel to the scanning direction; an intermediate scanning section that moves synchronous with the first scanning section, for supporting an intermediate mirror to reflect the image of the document reflected by the first mirror in a direction opposite from an incident direction of the image; a reading section including an imaging sensor for reading the image of a scanned document and a focusing lens for focusing the image of the document reflected by the intermediate mirror on the imaging sensor; a driving wire for pulling the first scanning section in the scanning direction; a supporting pulley for supporting the driving wire at a starting side for scanning or at an ending side for scanning; a position adjustment section capable of adjusting a position of the supporting pulley in its axial direction; a control section for performing such control that the image for adjustment is read by the reading section when the first scanning section is located at a first position and at a second position in the scanning direction, and an adjustment amount of the position adjustment section is calculated based on a readout result of the image; and an output section for outputting the calculated adjustment amount.

    摘要翻译: 一种文件读取装置,包括:第一扫描部,其沿文件表面沿扫描方向移动,用于支撑第一反射镜以在与扫描方向平行的方向上反射原稿的图像; 中间扫描部,其与第一扫描部同步移动,用于支撑中间反射镜,以反射与第一反射镜反射的文件的图像在与图像的入射方向相反的方向上; 读取部分,包括用于读取扫描文档的图像的成像传感器和用于将由中间反射镜反射的原稿的图像聚焦在成像传感器上的聚焦透镜; 用于沿扫描方向拉动第一扫描部分的驱动线; 用于在用于扫描的起始侧支撑驱动线的支撑皮带轮或用于扫描的终止侧; 位置调整部,其能够调整所述支撑皮带轮的轴向位置; 控制部分,用于当第一扫描部分位于扫描方向上的第一位置和第二位置时,由读取部分读取调节图像,并且计算位置调整部分的调整量 基于图像的读出结果; 以及输出部,用于输出计算出的调整量。

    Document reading apparatus and image processing method
    10.
    发明申请
    Document reading apparatus and image processing method 有权
    文件阅读装置和图像处理方法

    公开(公告)号:US20070242319A1

    公开(公告)日:2007-10-18

    申请号:US11784265

    申请日:2007-04-06

    IPC分类号: H04N1/04

    摘要: A document table is provided with a first chart portion and a second chart portion. In each of the first chart portion and the second chart portion, a reference chart is formed. The first chart portion is disposed at an upstream chart position, and the second chart portion is disposed at a downstream-side position located away in a sub-scanning direction from the upstream chart position. On the basis of respective chart images of the first chart portion and second chart portion obtained from respective reference charts of the first and second chart portions read by a document reading portion, the image processing portion obtains respective sharpening levels for respective image areas of a document image of a document read by the document reading portion and, based on the respective sharpening levels, processes the document image.

    摘要翻译: 文件表具有第一图表部分和第二图表部分。 在第一图表部分和第二图表部分的每一个中,形成参考图。 第一图表部分设置在上游图表位置,第二图表部分设置在远离上游图表位置的副扫描方向上的下游位置。 基于由文件读取部分读取的第一和第二图表部分的各个参考图表获得的第一图表部分和第二图表部分的各个图表图像,图像处理部分获得文档的各个图像区域的相应锐化水平 由文档读取部分读取的文档的图像,并且基于相应的锐化级别处理文档图像。