公开(公告)号：US20050179959A1

公开(公告)日：2005-08-18

申请号：US11048706

申请日：2005-02-03

Applicant: Szu Lien

Inventor： Szu Lien

IPC: H04N1/00 ,  H04N1/04 ,  H04N1/203 ,  H04N1/407

CPC classification number: H04N1/2032 ,  H04N1/203 ,  H04N1/4076 ,  H04N2201/044

Abstract: In a sheet-fed scanner capable of scanning multiple scan lines as a calibration standard for an image signal, a scanning module scans a document, which is fed across a scan region by a sheet-feeding mechanism, and a stationary calibration sheet in the scan region. The scanning module includes an image sensor, a lens and at least one reflecting mirror. An actuator actuates the reflecting mirror to enable the image sensor to sense a plurality of scan lines on the calibration sheet through the lens and the reflecting mirror in order to obtain a calibration standard for the image signal of the document. The calibration standard is adopted to calibrate an image signal of the document, and with this invention, it is possible to avert any flaws in image quality caused by the contaminated calibration sheet.

Abstract translation: 在能够扫描多条扫描线作为图像信号的校准标准的单张纸扫描器中，扫描模块扫描通过片材馈送机构在扫描区域上馈送的文档和扫描中的固定校准片 地区。 扫描模块包括图像传感器，透镜和至少一个反射镜。 致动器致动反射镜，使得图像传感器可以通过透镜和反射镜感测校准片上的多条扫描线，以便获得文档图像信号的校准标准。 采用校准标准来校准文件的图像信号，并且通过本发明，可以避免由污染的校准片引起的图像质量的任何缺陷。

公开(公告)号：US06768564B1

公开(公告)日：2004-07-27

申请号：US09519095

申请日：2000-03-06

Applicant: Robert G Gann

Inventor： Robert G Gann

IPC: H04N104

CPC classification number: H04N1/6094 ,  H04N1/02895 ,  H04N1/1013 ,  H04N1/4076 ,  H04N2201/0404 ,  H04N2201/044 ,  H04N2201/0458

Abstract: A light attenuating filter is introduced between a light source and a light sensor in a calibration region of a transparency scanner. The transparency scanner includes a carriage for supporting the light source, a transparent platen, and a housing for supporting the transparent platen. The light attenuating filter is placed in the calibration region either as part of a template resting on the transparent platen, as part of housing, or as part of the carriage. Light from the light source is directed through the light attenuating filter and onto the light sensor. The transparency scanner is calibrated to compensate for the attenuation of light by the light attenuating filter. Calibrating the transparency scanner includes adjusting one or more parameters for controlling the transparency scanner. Examples of parameters used for controlling the transparency scanner include light source intensity, light source exposure time, and analog and digital gain of a signal produced by the light sensor. In order to achieve a color balance in the calibration, the light attenuating filter may attenuate light of one color more than light of another color. When the transparency scanner is calibrated using this filter, color balance of the transparency scanner is adjusted.

Abstract translation: 在透明扫描器的校准区域中的光源和光传感器之间引入光衰减滤光器。 透明扫描器包括用于支撑光源的托架，透明压板和用于支撑透明压板的壳体。 光衰减滤光器作为模板的一部分放置在校准区​​域中，该模板位于透明压板上，作为外壳的一部分，或作为托架的一部分。 来自光源的光通过光衰减滤光器引导到光传感器上。 透明度扫描仪被校准以补偿光衰减滤光器对光的衰减。 校准透明度扫描器包括调整一个或多个参数以控制透明度扫描仪。 用于控制透明扫描仪的参数的实例包括光源强度，光源曝光时间，以及由光传感器产生的信号的模拟和数字增益。 为了在校准中实现色彩平衡，光衰减滤光器可以比另一种颜色的光衰减一种颜色的光。 当使用此滤镜校准透明扫描仪时，会调整透明度扫描仪的色彩平衡。

公开(公告)号：US06765700B1

公开(公告)日：2004-07-20

申请号：US09372564

申请日：1999-08-11

Applicant: Mitsuhiro Naito ,  Yasuyuki Ohiwa

Inventor： Mitsuhiro Naito ,  Yasuyuki Ohiwa

IPC: H04N104

CPC classification number: H04N1/00816 ,  H04N1/00795 ,  H04N2201/044

Abstract: The present invention relates to a method for controlling an image scanner for reading images by moving an image sensor. Specifically, the present invention relates to a control method for detecting the boundary between a white region and a black region formed at a predetermined place in accordance with a signal output from the image sensor and determining the home position of the image sensor in accordance with the position of the boundary. Particularly, the present invention is an invention for providing a control method for preventing erroneous recognition due to influence of external light. The above objects are achieved by methods of the present invention such as a method for confirming whether, when an output signal probably showing a black region is obtained, the same detection result is obtained again at another position in the black region, a method for excluding the vicinity of a housing end subject to external light from a read range, and a method for previously generating a threshold for detecting a black region in accordance with a signal output from an image sensor to use the value of the signal.

Abstract translation: 本发明涉及一种通过移动图像传感器来控制用于读取图像的图像扫描器的方法。 具体而言，本发明涉及一种用于根据从图像传感器输出的信号来检测形成在预定位置的白色区域和黑色区域之间的边界的控制方法，并根据图像传感器的原始位置确定 边界的位置。 特别地，本发明是提供一种用于防止由于外部光的影响而引起的错误识别的控制方法的发明。上述目的通过本发明的方法来实现，例如用于确认当输出信号可能显示为 获得黑色区域，在黑色区域中的另一位置再次获得相同的检测结果，从读取范围排除受外界光的外壳端附近的方法，以及用于预先生成用于检测黑色区域的阈值的方法 黑色区域根据从图像传感器输出的信号来使用信号的值。

公开(公告)号：US20040136036A1

公开(公告)日：2004-07-15

申请号：US10743044

申请日：2003-12-23

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Yoichi Horaguchi

IPC: H04N001/04

CPC classification number: H04N1/04 ,  H04N2201/044 ,  H04N2201/0444 ,  H04N2201/0462

Abstract: An image reading apparatus having a movable image reading unit, a locking mechanism locking the image reading device, and a position sensor. The image reading unit has an engaged portion. The lock mechanism has an engaging portion that engages the engaged portion. A first detected portion changes its position in accordance with the movement of the engaging portion. The position sensor detects the image reading unit when the image reading unit is in a first position, and detects the first detected portion when the engaging portion engages with the engaged portion.

Abstract translation: 具有可移动图像读取单元，锁定图像读取装置的锁定机构和位置传感器的图像读取装置。 图像读取单元具有接合部分。 锁定机构具有接合所接合部分的接合部分。 第一检测部分根据接合部分的移动改变其位置。 当图像读取单元处于第一位置时，位置传感器检测图像读取单元，并且当接合部分与接合部分接合时检测第一检测部分。

公开(公告)号：US06687025B2

公开(公告)日：2004-02-03

申请号：US10305081

申请日：2002-11-26

Applicant: Richard Lehman ,  Lee Batchelder

Inventor： Richard Lehman ,  Lee Batchelder

IPC: H04N104

CPC classification number: H04N1/0287 ,  H04N1/0402 ,  H04N1/0405 ,  H04N1/0429 ,  H04N1/10 ,  H04N1/193 ,  H04N2201/0404 ,  H04N2201/0412 ,  H04N2201/0418 ,  H04N2201/044

Abstract: A digitizer having an illuminator with a mask configured to rotate about a central axis for reducing flare from the illuminator when digitizing a data medium having a width less than an associated length of the illuminator. A page width guide of the digitizer may be operatively coupled to the mask so that movement of the page width guide automatically rotates the mask a predetermined amount. A rare gas, external electrode, cold cathode fluorescent lamp may also be utilized as an illuminator in the digitizer.

Abstract translation: 一种数字化仪，具有一个具有掩模的照明器，该照明器被配置为围绕中心轴线旋转，以便当数字化具有小于照明器相关联的长度的宽度的数据介质时，减少来自照明器的光斑。 数字转换器的页面宽度引导件可以可操作地耦合到掩模，使得页面宽度引导件的移动自动地将掩模旋转预定量。 稀有气体，外部电极，冷阴极荧光灯也可用作数字化仪中的照明器。

公开(公告)号：US06650442B1

公开(公告)日：2003-11-18

申请号：US09618598

申请日：2000-07-17

Applicant: Hui-Hsien Chiu

Inventor： Hui-Hsien Chiu

IPC: G06K936

CPC classification number: H04N1/04 ,  H04N1/00795 ,  H04N1/00819 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/0416 ,  H04N2201/044

Abstract: A multiple non-directional scanning method. A document preview scanning is carried out from one end of the document to the other. The preview image is next analyzed to provide a set of scan parameters. After setting the scan parameters, the scanner performs a backward scanning operation from the other end of the document back to the original start-up position to obtain a final scan image.

Abstract translation: 多重无方向扫描方法。 文档预览扫描从文档的一端执行到另一端。 接下来分析预览图像以提供一组扫描参数。 在设置扫描参数后，扫描仪从文档的另一端执行反向扫描操作，返回原始启动位置，以获得最终的扫描图像。

公开(公告)号：US06606464B2

公开(公告)日：2003-08-12

申请号：US09749542

申请日：2000-12-28

Applicant: Tetsuo Asakawa

Inventor： Tetsuo Asakawa

IPC: G03G15043

CPC classification number: H04N1/0464 ,  H04N1/1013 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/044

Abstract: A method and apparatus for image reading and image forming. A shading operation is performed by initially setting an operation parameter necessary for the shading operation and an image reading operation. The shading operation is then performed, an image reading operation is executed, and a further shading operation is then performed after the image reading operation. An operation parameter is then again set when a preparation of a next image reading operation is completed, an image reading operation is performed, and then a further shading operation is performed.

Abstract translation: 一种用于图像读取和图像形成的方法和装置。 通过初始设置阴影操作和图像读取操作所需的操作参数来执行阴影操作。 然后执行阴影操作，执行图像读取操作，然后在图像读取操作之后执行另外的阴影操作。 当完成下一图像读取操作的准备时，再次设置操作参数，执行图像读取操作，然后执行另外的阴影操作。

公开(公告)号：US06567188B1

公开(公告)日：2003-05-20

申请号：US09449349

申请日：1999-11-24

Applicant: David M. Thompson ,  Ed C. Savage ,  John I. Howard

Inventor： David M. Thompson ,  Ed C. Savage ,  John I. Howard

IPC: H04N140

CPC classification number: H04N1/04 ,  H04N1/1017 ,  H04N1/1215 ,  H04N1/193 ,  H04N1/401 ,  H04N2201/044 ,  H04N2201/0458

Abstract: A non-coplanar calibration system exists when the calibration reference plane is offset from a document plane. Due to size, shape, or other factors attributable to a scanning system, it may not be feasible to place the calibration reference plane on the document plane, i.e., the platen glass. Lamp-fall off represents an effect that occurs as you get closer to the ends of the lamp and light energy is diminished. The profile difference between the calibration plane and the document plane in a non-coplanar system can be corrected for on a pixel by pixel basis. Illumination fall off due to the change in the distance from calibration plane to the document plane represents the main effect that must be corrected for. Also, the platen glass must be taken into account. A single calibration correction factor can be applied to each CCD element in a scanning system to account for the shift from calibration plane to document plane. Or a lumped parameter single calibration correction factor comprised of the average profile shift and the illumination shift can be used.

Abstract translation: 当校准参考平面偏离原稿平面时，存在非共面校准系统。 由于归因于扫描系统的尺寸，形状或其他因素，将校准参考平面放置在原稿平面（即稿台玻璃）上可能是不可行的。 灯掉落表示当您越来越接近灯的端点时发生的效果，光能量减弱。 在非共面系统中的校准平面和原稿平面之间的轮廓差异可以逐个像素地校正。 由于从校准平面到文件平面的距离的变化，照明脱落代表必须纠正的主要影响。 此外，必须考虑稿台玻璃。 单个校准因子可以应用于扫描系统中的每个CCD元件，以考虑从校准平面到文稿平面的偏移。 或者可以使用由平均轮廓偏移和照明偏移组成的集总参数单校准因子。

公开(公告)号：US20030030854A1

公开(公告)日：2003-02-13

申请号：US09927834

申请日：2001-08-10

Inventor： Yin-Chun Huang ,  Chih-Wen Huang

IPC: H04N001/04

CPC classification number: H04N1/0057 ,  H04N2201/044 ,  H04N2201/0458 ,  H04N2201/04715

Abstract: A focusing apparatus of an automatic document feeder, having the automatic document feeder has a scanning zone for an optical chassis to retrieve an image of a document. The focusing apparatus of automatic document feeder comprises at least one focusing chart, which is disposed at a location corresponding to the scanning zone. The focusing chart is comprised of a plurality of focus detecting elements and capable of automatic focusing by the optical chassis.

Abstract translation: 具有自动文件馈送器的自动文件馈送器的聚焦设备具有用于光学机架的扫描区域以检索文档的图像。 自动送纸器的聚焦装置包括至少一个聚焦图，该对焦图被设置在与扫描区相对应的位置处。 聚焦图由多个焦点检测元件组成并且能够由光学底盘自动聚焦。

公开(公告)号：US20030007197A1

公开(公告)日：2003-01-09

申请号：US10082360

申请日：2002-02-26

Inventor： Hyun Kim

IPC: H04N001/04 ,  H04N001/40

CPC classification number: H04N1/00816 ,  H04N1/00795 ,  H04N1/00819 ,  H04N1/047 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/044 ,  H04N2201/04703 ,  H04N2201/0472 ,  H04N2201/04732

Abstract: An apparatus and method for correcting a scanning error in a flatbed scanner, can minimize the scanning error due to deviations in position or scanning of a CCD (charge-coupled device) module by determining a scanning position, a scan region, and a scan rate for each flatbed scanner. The scanning error correcting apparatus includes a white shading plate having a black patch, a reading module for reading the white shading plate and the black patch, and a controller that compares information about the black patch read by the reading module with a predetermined reference value to correct the scanning error in the flatbed scanner. Thus, the apparatus and method can secure a scanning region in horizontal and vertical directions as wide as possible for each flatbed scanner and prevent occurrences of errors in a scanned image due to deviations of the CCD module. Furthermore, the apparatus and method provide an accurately scanned image having a desired scan rate by comparing right and left sizes and the entire scan size for a currently scanned region.

Abstract translation: 用于校正平板扫描仪中的扫描误差的装置和方法可以通过确定扫描位置，扫描区域和扫描速率来最小化由于CCD（电荷耦合器件）模块的位置偏差或扫描的扫描误差 对于每个平板扫描仪。 扫描误差校正装置包括具有黑色贴片的白色遮蔽板，用于读取白色遮蔽板和黑色贴片的读取模块，以及将由读取模块读取的黑色贴片的信息与预定参考值进行比较的控制器， 纠正平板扫描仪中的扫描错误。 因此，该装置和方法可以确保每个平板扫描器尽可能宽的水平和垂直方向上的扫描区域，并且防止由于CCD模块的偏差而在扫描图像中发生错误。 此外，该装置和方法通过比较当前扫描区域的左右尺寸和整个扫描尺寸来提供具有所需扫描速率的精确扫描图像。