公开(公告)号：US08159732B2

公开(公告)日：2012-04-17

申请号：US12262884

申请日：2008-10-31

Applicant: Chengwu Cui ,  Adam Christopher Kelty ,  Charles Brandon Langrel

Inventor： Chengwu Cui ,  Adam Christopher Kelty ,  Charles Brandon Langrel

IPC: H04N1/04 ,  G06F15/00 ,  B41J2/47 ,  G06K7/10 ,  E05D7/04

CPC classification number: H04N1/00002 ,  H04N1/00013 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00047 ,  H04N1/0005 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00076 ,  H04N1/1017 ,  H04N1/103 ,  H04N2201/02402 ,  H04N2201/02495 ,  Y10T16/53253

Abstract: An apparatus and methods of use for adjusting a sliding guide rod for an imaging device of a flatbed scanner to improve scanner skew misalignment comprising an attachment member movably mounting the sliding guide rod at one end thereof to one side of the flatbed scanner so as to allow skew-adjusting movement of the sliding guide rod at an opposite end thereof relative to the flatbed scanner and a skew adjustment assembly attached to an opposite side of the flatbed scanner and movably coupling and supporting the opposite end of the sliding guide rod to the opposite side of the flatbed scanner and being actuatable to cause the sliding guide rod to undergo skew adjustment relative to the flatbed scanner to correct scanner skew misalignment of the imaging device. The skew adjustment assembly includes a skew adjustment bracket mounted to the opposite side of the flatbed scanner and movably coupled to and supporting the opposite end of the sliding guide rod to the opposite side of the flatbed scanner and a tension spring and a plurality of bracket locking fasteners coacting with the skew adjustment bracket and movably actuatable relative thereto to move the sliding guide rod to undergo the skew adjustment relative to the flatbed scanner.

Abstract translation: 一种用于调整用于平板扫描器的成像装置的滑动导杆的装置和方法，以改善扫描器偏斜错位，包括可将滑动导杆的一端可移动地安装到平板扫描仪的一侧的附接构件，以允许 滑动导杆相对于平板扫描器的相对端处的偏斜调整运动，以及安装在平板扫描仪的相对侧上的歪斜调节组件，可滑动地将滑动导杆的相对端支撑到相对侧 并且可致动以使滑动导杆相对于平板扫描器进行倾斜调整，以校正成像装置的扫描器偏斜不对准。 倾斜调节组件包括安装在平板扫描仪的相对侧上的歪斜调节支架，并且可移动地联接到滑动导杆的相对端并支撑到平板扫描仪的相对侧，并且拉伸弹簧和多个支架锁定 紧固件与偏斜调节支架共同作用并且可相对于其移动地移动，以使滑动导杆相对于平板扫描器进行倾斜调节。

公开(公告)号：US20110292473A1

公开(公告)日：2011-12-01

申请号：US12790392

申请日：2010-05-28

Applicant: Chengwu Cui ,  Charles Brandon Langrel

Inventor： Chengwu Cui ,  Charles Brandon Langrel

IPC: H04N1/04

CPC classification number: H04N1/121 ,  H04N1/1017 ,  H04N1/123 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/0442 ,  H04N2201/0446

Abstract: An imaging apparatus includes an automatic document feeder having a media feeding section, a media collecting section and a media conveying path extending from the media feeding section to the media collecting section. The imaging apparatus includes a scan head adjacent to the automatic document feeder. The scan head is moveable to a raised position aligned with a portion of the media conveying path for scanning a media sheet in the portion of the media conveying path.

Abstract translation: 一种成像装置包括具有介质供给部，介质收集部和从介质供给部延伸到介质收集部的介质输送路径的自动进纸器。 成像装置包括与自动文件进给器相邻的扫描头。 扫描头可移动到与介质输送路径的一部分对准的升高位置，以便在介质输送路径的该部分中扫描介质片。

公开(公告)号：US20090153920A1

公开(公告)日：2009-06-18

申请号：US11954807

申请日：2007-12-12

Applicant: Chengwu Cui ,  Charles Brandon Langrel

Inventor： Chengwu Cui ,  Charles Brandon Langrel

IPC: H04N1/04

CPC classification number: H04N1/00543 ,  H04N1/024 ,  H04N2201/0094 ,  H04N2201/02489

Abstract: A detachable transparent plate for a scan head assembly in a document scanning system that allows an operator to detach the transparent plate from the scan head assembly located above a media feed path to clean a top face of the transparent plate and easily reattach it to the scan head assembly. The scan head assembly has an optical system and a sealing member detachably mounted to a bottom end of the optical system. The transparent plate is received and supported by the sealing member and defines a portion of a bottom surface of the sealing member. The sealing member is detachable from the bottom end of the optical system to allow an operator access to the top face of the transparent plate of the sealing member for cleaning the top face of the transparent plate.

Abstract translation: 用于文件扫描系统中的扫描头组件的可拆卸透明板，其允许操作者将透明板从位于介质进给路径上方的扫描头组件分离，以清洁透明板的顶面并且容易地将其重新附着到扫描 头组件。 扫描头组件具有光学系统和可拆卸地安装到光学系统的底端的密封构件。 透明板由密封构件容纳并支撑，并限定密封构件底面的一部分。 密封构件可从光学系统的底端拆卸，以允许操作者进入密封构件的透明板的顶面，以清洁透明板的顶面。

公开(公告)号：US20080285096A1

公开(公告)日：2008-11-20

申请号：US11748664

申请日：2007-05-15

Applicant: Chengwu Cui ,  Phillip Daniel Erwin, JR. ,  Charles Brandon Langrel ,  Mark Lane Mayberry ,  Stephen Ray Wilson

Inventor： Chengwu Cui ,  Phillip Daniel Erwin, JR. ,  Charles Brandon Langrel ,  Mark Lane Mayberry ,  Stephen Ray Wilson

IPC: H04N1/04

CPC classification number: H04N1/121 ,  H04N1/00005 ,  H04N1/00018 ,  H04N1/00092 ,  H04N1/193 ,  H04N2201/04737 ,  H04N2201/04767

Abstract: A scanning system for generating an image includes a scanning device configured to receive light reflected from a document and to output a signal corresponding to the received light to collect image data for use in generating an image. An automatic document feed system is configured to move the document from a position upstream of the scanning device toward a position downstream of the scanning device along a document feed path in proximity to the scanning device to allow the scanning device to receive light reflected from the document. A processor includes logic that compensates for changes in document movement past the scanning device using document motion data to reduce motion error induced image defects.

Abstract translation: 用于生成图像的扫描系统包括：扫描装置，被配置为接收从文档反射的光并输出与​​所接收的光对应的信号，以收集用于生成图像的图像数据。 自动文件馈送系统被配置为沿着扫描设备附近的原稿馈送路径将文档从扫描设备的上游位置移动到扫描设备下游的位置，以允许扫描设备接收从文档反射的光 。 处理器包括通过使用文档运动数据补偿通过扫描装置的文档移动的变化以减少运动误差引起的图像缺陷的逻辑。

公开(公告)号：US20130271975A1

公开(公告)日：2013-10-17

申请号：US13444322

申请日：2012-04-11

Applicant: Chengwu Cui ,  Joshua Tyler Strow

Inventor： Chengwu Cui ,  Joshua Tyler Strow

IPC: F21V7/04 ,  F21V7/20

CPC classification number: F21V7/04 ,  F21V29/505 ,  H04N1/0281 ,  H04N1/0285 ,  H04N1/02865

Abstract: An illumination assembly for a scanner comprising a light source, a primary reflector and a secondary reflector. The primary reflector comprises a lower member and upper member spaced away from the lower member. The upper member has a heatsink for dissipating the heat of the light source. The light source is positioned between the lower and upper members and is attached to the upper member allowing for decreased vertical height for the illumination assembly.

Abstract translation: 一种用于扫描器的照明组件，包括光源，主反射器和次反射器。 主反射器包括下部构件和与下部构件间隔开的上部构件。 上部构件具有用于耗散光源的热量的散热器。 光源位于下部和上部构件之间并且附接到上部构件，允许照明组件的垂直高度减小。

公开(公告)号：US20090279178A1

公开(公告)日：2009-11-12

申请号：US12117834

申请日：2008-05-09

Applicant: Chengwu Cui

Inventor： Chengwu Cui

IPC: G02B27/00

CPC classification number: G02B27/0988 ,  H04N1/03 ,  H04N1/0303 ,  H04N1/0305 ,  H04N1/1013 ,  H04N1/12 ,  H04N2201/02493

Abstract: A scanhead of an imaging apparatus for providing image illumination uniformity for imaging of a media sheet, and a method thereof, are disclosed. The scanhead includes a lens, a lens shading plate and a sensor array. The lens is capable of receiving light reflected from the media sheet and focusing the received light. The lens shading plate is capable of assuming a lens shading plate position of a plurality of lens shading plate positions between the lens and the sensor array for receiving the light focused by the lens. The lens shading plate, on assuming the lens shading plate position, is capable of adjusting the light received from the lens for focusing the light onto the sensor array, thereby providing image illumination uniformity, for the imaging of the media sheet.

Abstract translation: 公开了一种用于提供用于对介质片进行成像的图像照明均匀性的成像装置的扫描头及其方法。 扫描头包括透镜，透镜遮光板和传感器阵列。 透镜能够接收从介质片反射的光并聚焦接收到的光。 透镜遮光板能够在透镜和传感器阵列之间设置多个透镜遮蔽板位置的透镜遮光板位置，用于接收由透镜聚焦的光。 透镜遮光板在假设透镜遮光板位置时能够调节从透镜接收的光以将光聚焦到传感器阵列上，从而提供图像照明均匀性，用于介质片的成像。

公开(公告)号：US20090153919A1

公开(公告)日：2009-06-18

申请号：US11954714

申请日：2007-12-12

Applicant: Charles B. Langrel ,  Chengwu Cui ,  Allen W. Waugerman

Inventor： Charles B. Langrel ,  Chengwu Cui ,  Allen W. Waugerman

IPC: H04N1/04

CPC classification number: H04N1/1013 ,  H04N2201/0422

Abstract: A method for providing a visible reference marker on a scanning unit for orienting an item to be scanned or copied includes the steps of emitting a light from a light source, guiding the light to a scanning unit having a contact glass scanning surface, and redirecting the light to define an illuminated reference marker substantially adjacent to the contact glass. A reference marker assembly for accomplishing that method is provided, including a light source, a waveguide for guiding light emitted from the light source to a scanning unit having a contact glass, and a redirector for redirecting the light to define an illuminated reference marker adjacent to the contact glass, for orienting an item to be copied or scanned. The light source may be a light emitting diode, and the redirector may be a light diffuser for redirecting the collected light to define an illuminated reference marker adjacent to the contact glass.

Abstract translation: 一种用于在扫描单元上提供可视参考标记以定向待扫描或复制的物品的方法包括以下步骤：从光源发射光，将光引导到具有接触玻璃扫描表面的扫描单元，并且重定向 光以限定基本上与接触玻璃相邻的照明参考标记。 提供了一种用于实现该方法的参考标记组件，包括光源，用于将从光源发射的光引导到具有接触玻璃的扫描单元的波导和用于重定向光的重定向器，以限定与...相邻的照明参考标记 接触玻璃，用于定向要复制或扫描的物品。 光源可以是发光二极管，并且重定向器可以是用于重定向收集的光以限定与接触玻璃相邻的照明参考标记的光漫射器。

公开(公告)号：US07423789B2

公开(公告)日：2008-09-09

申请号：US11217744

申请日：2005-09-01

Applicant: Jesse R. Borders ,  Chengwu Cui ,  Larry L Kiser

Inventor： Jesse R. Borders ,  Chengwu Cui ,  Larry L Kiser

IPC: H04N1/00 ,  H04N1/46 ,  G06K9/38 ,  G06K9/40

CPC classification number: H04N1/00002 ,  H04N1/00013 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/0009 ,  H04N1/4076

Abstract: Methods of identifying the location and dimensions of a contaminant particle on a calibration strip comprise imaging a calibration strip comprising a plurality of channels and a plurality of pixel columns. The method also includes generating a normalized local average pixel intensity value and locating a contaminant particle in a pixel column by comparing the intensity of an individual pixel in the pixel column to the normalized local average pixel intensity value. An intensity value of an individual pixel less than a predefined limit set below the normalized local average pixel intensity value corresponds to a location of a contaminant particle. The method further includes identifying the number of adjacent pixels in a pixel column less than a predefined limit set below the normalized local average pixel intensity value.

Abstract translation: 识别校准条上的污染物颗粒的位置和尺寸的方法包括成像包括多个通道和多个像素列的校准条。 该方法还包括通过将像素列中的各个像素的强度与归一化的局部平均像素强度值进行比较来生成归一化的局部平均像素强度值并将像素列中的污染物颗粒定位。 小于低于归一化局部平均像素强度值的预定义限度的单个像素的强度值对应于污染物颗粒的位置。 所述方法还包括识别像素列中小于规范化局部平均像素强度值之下的预定极限集合的相邻像素的数量。

公开(公告)号：US20060252023A1

公开(公告)日：2006-11-09

申请号：US11120934

申请日：2005-05-03

Applicant: Chengwu Cui

Inventor： Chengwu Cui

IPC: G09B3/00 ,  G09B7/00

CPC classification number: G09B7/06

Abstract: Methods for automatically grading multiple choice tests using test question sheets marked by a test-taker. Image processing algorithms automatically recognize the circled answer selections on the test question sheets. Using the invention multiple choice tests may be scanned and graded automatically without the use of bubble sheets, thereby simplifying and reducing the cost of testing.

Abstract translation: 使用由测试者标记的测试问题表自动分级多项选择测试的方法。 图像处理算法自动识别测试问题单上的圆圈答案选择。 使用本发明，可以在不使用气泡片的情况下自动扫描和分级多项选择测试，从而简化和降低测试成本。

公开(公告)号：US20060119898A1

公开(公告)日：2006-06-08

申请号：US11006425

申请日：2004-12-07

Applicant: Chengwu Cui

Inventor： Chengwu Cui

IPC: H04N1/40

CPC classification number: H04N1/32203 ,  H04N1/32325 ,  H04N2201/0081 ,  H04N2201/0082

Abstract: Information on a document may be encoded using indicia, such as end-to-end line segments, that form one or more visually non-intrusive borders. The coded borders may be decoded from the document using a scanner, such as an optical scanner. The coded borders also serve as a visually non-intrusive way to separate and identify content in the document.

Abstract translation: 可以使用形成一个或多个视觉上非侵入性边界的标记（例如端对端线段）对文档的信息进行编码。 可以使用诸如光学扫描仪的扫描仪从文档解码编码边界。 编码边界也用作视觉上非侵入式的方式来分离和识别文档中的内容。