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1. 发明授权

US09930212B2 Image reading device generating black correction data for shade correction based on intermediate data acquired at different positions in the sub-scanning direction 有权
公开(公告)号：US09930212B2
公开(公告)日：2018-03-27
申请号：US15346067
申请日：2016-11-08
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Hirotsugu Fusayasu , Ryo Matsubara , Katsuo Inokuchi , Tatsuya Hirota , Yuuichi Tutiya
IPC分类号： H04N1/00 , H04N1/028 , H04N1/031 , H04N1/04 , H04N1/40 , H04N1/401 , H04N1/12 , H04N1/19 , H04N1/191 , H04N1/193
CPC分类号： H04N1/401 , H04N1/00005 , H04N1/00013 , H04N1/00018 , H04N1/00034 , H04N1/00039 , H04N1/00045 , H04N1/00053 , H04N1/00063 , H04N1/00068 , H04N1/00082 , H04N1/00087 , H04N1/028 , H04N1/02855 , H04N1/031 , H04N1/0311 , H04N1/0318 , H04N1/04 , H04N1/12 , H04N1/125 , H04N1/19 , H04N1/191 , H04N1/193 , H04N1/40006 , H04N1/40056 , H04N1/4076 , H04N2201/0081
摘要： An image reading device has an image processor that generates correction data to be used for shading correction and performs the shading correction using the correction data. The image processor generates intermediate data with a predetermined density level, generates intermediate data in different positions in the sub-scanning direction based on image signals of a first reference plate and a second reference plate disposed in the different positions, generates first and second black correction data based on the respective intermediate data, generates black correction data according to the sub-scanning direction based on both the black correction data, and performs the shading correction using the black correction data in the respective positions in the sub-scanning direction.

2. 发明申请

US20170064108A1 LIGHT SCANNING APPARATUS AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：光扫描装置和图像形成装置
公开(公告)号：US20170064108A1
公开(公告)日：2017-03-02
申请号：US15244948
申请日：2016-08-23
申请人： CANON KABUSHIKI KAISHA
发明人： Toshiharu Mamiya , Hiroshi Nakahata , Shinichiro Hosoi , Yuta Okada
IPC分类号： H04N1/00 , H04N1/29 , H04N1/19 , H04N1/028
CPC分类号： H04N1/00525 , H04N1/0283 , H04N1/02885 , H04N1/19 , H04N1/29 , H04N2201/0091
摘要： A light scanning apparatus, including: a first division unit configured to divide light emitted from a light source into a first and a second light beams; a deflection unit configured to deflect the first and second light beams to scan a first and a second scanned surfaces; a detection unit configured to detect the second light beam; a control unit configured to control, based on a detection result of the second light beam detected by the detection unit, a timing of the first light beam and a timing of the second light beam; and a second division unit configured to divide the first light beam into a third light beam and a fourth light beam and to guide the fourth light beam to the detection unit to control light intensity of the light source based on a detection result of the fourth light beam detected by the detection unit.
摘要翻译：一种光扫描装置，包括：第一分割单元，被配置为将从光源发射的光分成第一和第二光束; 偏转单元，被配置为偏转第一和第二光束以扫描第一和第二扫描表面; 检测单元，被配置为检测所述第二光束; 控制单元，被配置为基于由所述检测单元检测到的所述第二光束的检测结果来控制所述第一光束的定时和所述第二光束的定时; 以及第二分割单元，被配置为将第一光束分成第三光束和第四光束，并且将第四光束引导到检测单元，以基于第四光的检测结果来控制光源的光强度光束由检测单元检测。

3. 发明申请

US20160028916A1 IMAGE READING APPARATUS AND IMAGE READING METHOD 有权
标题翻译：图像读取装置和图像读取方法
公开(公告)号：US20160028916A1
公开(公告)日：2016-01-28
申请号：US14754208
申请日：2015-06-29
申请人： CANON KABUSHIKI KAISHA
发明人： Kimihiko Fukawa
IPC分类号： H04N1/12 , H04N1/04 , H04N1/23 , H04N1/19 , H04N1/203 , H04N1/00 , H04N1/10
CPC分类号： H04N1/125 , H04N1/00013 , H04N1/00045 , H04N1/00063 , H04N1/00071 , H04N1/00588 , H04N1/00689 , H04N1/00758 , H04N1/0461 , H04N1/10 , H04N1/19 , H04N1/203 , H04N1/2346 , H04N2201/0081 , H04N2201/0094
摘要： According to an embodiment of this invention, opening/closing of an ADF unit is correctly detected even under the influence of outside light. More specifically, a light source provided in a reading unit is turned on to irradiate a white board, and first data based on reflected light from the white board is obtained. Next, the light source provided in the reading unit is turned off, and second data based on reflected light from the white board is obtained. The difference between the first data and second data is compared with a predetermined threshold. It is determined based on the comparison whether the ADF unit is in an opened or closed state.
摘要翻译：根据本发明的实施例，即使在外部光的影响下也能正确地检测到ADF单元的打开/关闭。更具体地，设置在读取单元中的光源被接通以照射白板，并且获得基于来自白板的反射光的第一数据。接下来，设置在读取单元中的光源被关闭，并且获得基于来自白板的反射光的第二数据。将第一数据和第二数据之间的差与预定阈值进行比较。基于比较确定ADF单元是处于打开还是关闭状态。

4. 发明授权

US08830328B2 Camera-based duplex imaging apparatus for imaging a document having no document ejection mechanism 有权
标题翻译：基于相机的双面成像设备，用于对没有文件排出机构的文档成像
公开(公告)号：US08830328B2
公开(公告)日：2014-09-09
申请号：US13284361
申请日：2011-10-28
申请人： Iuval Hatzav , Ilan Ben-Shahar , Giyora Sharaby , Daniel Hatzav
发明人： Iuval Hatzav , Ilan Ben-Shahar , Giyora Sharaby , Daniel Hatzav
IPC分类号： H04N7/18 , H04N1/19 , H04N1/195 , H04N1/10 , G06K9/20 , G06K9/22 , H04N1/203
CPC分类号： H04N1/19594 , G06K9/2027 , G06K9/2036 , G06K9/228 , H04N1/10 , H04N1/19 , H04N1/203
摘要： A duplex imaging apparatus for imaging at least one side of a document, including a processor and lower and upper imaging devices. Each imaging device includes an optical-chamber, a camera and a light-source-configuration, facilitated to directly illuminate each face of the document from at least two illuminating angles. The lower imaging device is enclosed by a glass-window, wherein the document is operatively disposed on the glass-window. Each of the light source configurations includes at least one cluster of light sources, wherein the clusters of light sources are operated in a preconfigured sequence. Direct illumination forms hotspots in the acquired image frames at preconfigured locations, corresponding to the light sources positioning. The processor is facilitated to cutout preconfigured image frame portions containing the hotspots, forming clean portions of the image frames, and to combine the clean portions to form a clean output image frame.
摘要翻译：一种用于成像文档的至少一侧的双面成像设备，包括处理器和下部和上部成像设备。每个成像装置包括光学室，照相机和光源配置，有助于从至少两个照明角度直接照亮文件的每个面。下部成像装置由玻璃窗包围，其中文件可操作地设置在玻璃窗上。每个光源配置包括至少一组光源，其中光源簇以预先配置的顺序操作。直接照明在预先配置的位置处在所获取的图像帧中形成对应于光源定位的热点。促进处理器来切除包含热点的预配置图像帧部分，形成图像帧的清洁部分，并且组合清洁部分以形成干净的输出图像帧。

5. 发明申请

US20140246570A1 IMAGE READING DEVICE 有权
标题翻译：图像读取装置
公开(公告)号：US20140246570A1
公开(公告)日：2014-09-04
申请号：US14350268
申请日：2012-10-24
申请人： Tadashi Minobe , Takahito Nakanishi , Seiichi Matsumura , Tetsuo Funakura , Hiroyuki Kawano , Tatsuki Okamoto , Taku Matsuzawa , Yasunori Matsumoto
发明人： Tadashi Minobe , Takahito Nakanishi , Seiichi Matsumura , Tetsuo Funakura , Hiroyuki Kawano , Tatsuki Okamoto , Taku Matsuzawa , Yasunori Matsumoto
IPC分类号： H04N1/19
CPC分类号： H04N1/19 , H04N1/0303 , H04N1/0305 , H04N2201/0081 , H04N2201/02456 , H04N2201/0246 , H04N2201/02483 , H04N2201/02485 , H04N2201/02493
摘要： An image reading device including: concave first lens mirrors that are arranged in an array shape along a main scanning direction and that collimate scattered light reflected by an irradiated object and reflect the scattered light as a substantially parallel bundle of rays that are angled in a sub-scanning direction; planar mirrors that reflect light from the first lens mirrors; apertures that are arranged in an array shape and that allow light from the planar mirrors to pass through by way of openings that are arranged in an array shape and that are light-shielded therearound for selectively allowing light to pass through; concave second lens mirrors that are arranged in an array shape into which light from the apertures is incident and that reflect the light from the apertures as converged light; and light receivers that have light receiving areas on which light from the second lens mirrors is incident and that form images that correspond to light from the openings.
摘要翻译：一种图像读取装置，包括：沿着主扫描方向排列成阵列形状的凹形第一透镜镜，并准直由被照射物体反射的散射光，并将散射光反射成基本平行的光束束，扫描方向反射来自第一透镜的光的平面镜; 排列成阵列形状并且允许来自平面镜的光通过排列成阵列形状的开口并且围绕其被光屏蔽以选择性地允许光通过的孔; 凹入的第二透镜镜被布置成阵列形状，来自孔的光入射到其中，并且将来自孔的光作为会聚光反射; 以及光接收器，其具有来自第二透镜镜的光入射的光接收区域，并形成与来自开口的光对应的图像。

6. 发明申请

US20140240791A1 IMAGE READER 审中-公开
标题翻译：图像读取器
公开(公告)号：US20140240791A1
公开(公告)日：2014-08-28
申请号：US14273786
申请日：2014-05-09
申请人： BROTHER KOGYO KABUSHIKI KAISHA
发明人： Hidekazu OKADA
IPC分类号： H04N1/40 , H04N1/19 , H04N1/203 , H04N1/12
CPC分类号： H04N1/40 , H04N1/00954 , H04N1/121 , H04N1/19 , H04N1/193 , H04N1/2032 , H04N2201/0081 , H04N2201/0454
摘要： An image reader is provided, which includes a first analog front end unit configured to perform A/D conversion for analog signals that are output via a first group of channels of a number resulting from rounding up, to a closest whole number, an average value between a number of at least one channel for a first image reading unit and a number of channels for a second image reading unit, among analog signals output from the first image reading unit and the second image reading unit, and a second analog front end unit configured to perform A/D conversion for analog signals that are output via a second group of channels other than the channels in the first group, among the analog signals output from the first image reading unit and the second image reading unit.
摘要翻译：提供了一种图像读取器，其包括：第一模拟前端单元，被配置为对经由由舍入导致的数字的第一组信道输出到模拟信号的A / D转换为最接近的整数，平均值在从第一图像读取单元和第二图像读取单元输出的模拟信号中，在用于第一图像读取单元的多个通道的数量和用于第二图像读取单元的通道的数量之间，以及第二模拟前端单元配置成对从第一图像读取单元和第二图像读取单元输出的模拟信号中经由除第一组中的通道之外的第二组通道输出的模拟信号执行A / D转换。

7. 发明申请

US20140168727A1 IMAGE SENSOR UNIT, IMAGE READING APPARATUS, AND IMAGE FORMING APPARATUS 有权
标题翻译：图像传感器单元，图像读取装置和图像形成装置
公开(公告)号：US20140168727A1
公开(公告)日：2014-06-19
申请号：US14090480
申请日：2013-11-26
申请人： CANON COMPONENTS, INC.
发明人： Takehiro KAWAMURA
IPC分类号： H04N1/19
CPC分类号： H04N1/19 , H04N1/03 , H04N1/031
摘要： An image sensor unit includes: a plurality of sensor substrates that are connected in a main-scan direction and that are provided with sensor chips in the main-scan direction, the sensor chips converting light from an original to electric signals; and a plurality of rod-lens arrays that are connected in the main-scan direction and that are provided with a plurality of rod lenses in the main-scan direction, the rod lenses focusing the light from the original on the sensor chips, wherein connection positions between the plurality of sensor substrates are arranged at positions not overlapping with connection positions between the plurality of rod-lens arrays. A decrease in reading accuracy of an image can be reduced even if short constituent members are connected in the main-scan direction to form an elongated image sensor unit.
摘要翻译：图像传感器单元包括：多个传感器基板，其沿主扫描方向连接并且在主扫描方向上设置有传感器芯片，所述传感器芯片将光从原件转换为电信号; 以及在主扫描方向上连接并且在主扫描方向上设置有多个杆透镜的多个杆透镜阵列，所述杆透镜将来自原稿的光聚焦在传感器芯片上，其中连接多个传感器基板之间的位置被布置在与多个棒状透镜阵列之间的连接位置不重叠的位置处。即使在主扫描方向上连接较短的构成部件以形成细长的图像传感器单元，也可以降低图像的读取精度。

8. 发明申请

US20130250371A1 TWO-DIMENSIONAL CALIBRATION OF IMAGE SENSOR ALIGNMENT IN OPTICAL SCANNERS 有权
标题翻译：光学扫描仪中图像传感器对准的二维校准
公开(公告)号：US20130250371A1
公开(公告)日：2013-09-26
申请号：US13877327
申请日：2010-10-01
申请人： Gerard Verhaegh
发明人： Gerard Verhaegh
IPC分类号： H04N1/00
CPC分类号： H04N1/00031 , H04N1/19 , H04N1/1903 , H04N1/193 , H04N1/1934 , H04N1/195 , H04N1/19584 , H04N1/3876
摘要： Disclosed is a method of processing image signals from a first and a second image sensor, both of a document scanner unit, where the first image sensor provides a first image, and the second image sensor provides a second image. The first and the second image are two-dimensional images wherein said first and second image are recorded at respective areas of a scanned medium, where a portion of the respective areas is recorded also by the other of the respective image sensors. Thereby image data from overlapping and non-overlapping areas are present in the first and the second image. The method comprises: correlating the first image with the second image, creating a correlation image and processing the correlation image to determine a displacement between the first and the second image. Consequently, a versatile calibration method is provided that can determine a displacement between the first and the second image in two dimensions.
摘要翻译：公开了一种处理来自第一图像传感器和第二图像传感器的图像信号的方法，其中第一图像传感器提供第一图像的文档扫描器单元和第二图像传感器提供第二图像。第一和第二图像是二维图像，其中所述第一和第二图像被记录在扫描介质的相应区域，其中各个区域的一部分也由相应图像传感器中的另一个记录。由此，来自重叠区域和非重叠区域的图像数据存在于第一和第二图像中。该方法包括：将第一图像与第二图像相关，创建相关图像并处理相关图像以确定第一图像和第二图像之间的位移。因此，提供了可以确定第一和第二图像在二维中的位移的通用校准方法。

9. 发明授权

US08149473B2 Image reading apparatus 失效
标题翻译：图像读取装置
公开(公告)号：US08149473B2
公开(公告)日：2012-04-03
申请号：US11915945
申请日：2005-12-22
申请人： Haruhisa Oshida , Yuichi Yamamoto , Ayumu Murakami , Takuma Koizumi , Kiyoshi Oyama , Toshifumi Itabashi , Yusuke Imai
发明人： Haruhisa Oshida , Yuichi Yamamoto , Ayumu Murakami , Takuma Koizumi , Kiyoshi Oyama , Toshifumi Itabashi , Yusuke Imai
IPC分类号： H04N1/04
CPC分类号： H04N1/19 , H04N1/0464 , H04N1/1017 , H04N1/1215 , H04N1/125 , H04N1/195 , H04N2201/0436 , H04N2201/0458
摘要： An image reading apparatus is provided that can prevent image streaks due to dirt, stain or the like from being produced in an image of an original that is read while being conveyed. The image reading apparatus (A) includes an ADF (40) having a scanner unit (59) incorporated therein and comprised of a cylinder (60) having an outer peripheral surface thereof on which a plurality of read pixels (61) are arranged in a matrix. In reading an original (D), the scanner unit is rotatably driven in an original conveying direction at a circumferential speed approximately equal to an original conveying speed, and reads image information on the original passing through an image reading position (P1).
摘要翻译：提供一种图像读取装置，其能够防止在被输送时读取的原稿的图像中产生由污垢，污渍等引起的图像条纹。图像读取装置（A）包括具有并入其中的扫描器单元（59）的ADF（40），其包括具有外周表面的圆筒（60），多个读取像素（61）布置在其中矩阵。在读取原稿（D）时，扫描器单元以原始传送速度大致等于圆周速度以原始传送方向旋转驱动，并且读取通过图像读取位置（P1）的原稿上的图像信息。

10. 发明申请

US20110299137A1 OPTICAL SCANNING 有权
标题翻译：光学扫描
公开(公告)号：US20110299137A1
公开(公告)日：2011-12-08
申请号：US13130855
申请日：2008-11-26
申请人： Nis Engholm , Anders Ørbek
发明人： Nis Engholm , Anders Ørbek
IPC分类号： H04N1/04
CPC分类号： H04N1/047 , H04N1/19 , H04N2201/04706 , H04N2201/04755
摘要： Disclosed is a method of adjusting a scanner for scanning of an original, the scanner comprising an image sensor and a light source for emitting light, the method comprising the steps of: a) moving the image sensor in order for it to be located at a predefined scanning position by means of a movable mechanical member; b) determining the difference between the scanning position and the predefined scanning position; where the method further comprises: determining the difference between the scanning position and the predefined scanning position by detecting radiation from at least one fix-point having a fixed position relative to the image sensor.
摘要翻译：公开了一种调整用于扫描原稿的扫描仪的方法，所述扫描仪包括图像传感器和用于发光的光源，所述方法包括以下步骤：a）移动所述图像传感器以使其位于借助可移动机械构件预定的扫描位置; b）确定扫描位置和预定扫描位置之间的差异; 其中所述方法还包括：通过检测来自具有相对于所述图像传感器的固定位置的至少一个固定点的辐射来确定所述扫描位置与所述预定扫描位置之间的差异。

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