公开(公告)号：US08405889B2

公开(公告)日：2013-03-26

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：US20120162725A1

公开(公告)日：2012-06-28

申请号：US12979685

申请日：2010-12-28

Applicant: Eugene David Allen ,  Chengwu Cui ,  Joshua Tyler Strow

Inventor： Eugene David Allen ,  Chengwu Cui ,  Joshua Tyler Strow

IPC: H04N1/04

CPC classification number: H04N1/0303 ,  H04N1/0305

Abstract: Disclosed is an optical system for a scanner that includes at least one light source to illuminate a document, and a plurality of mirrors including a first mirror, a second mirror, a third mirror, a fourth mirror and a fifth mirror. The first mirror is positioned in a direction of the document to receive a light beam therefrom. The second mirror is adapted to receive the light beam reflected from the first mirror. The third mirror is positioned in proximity to the document and is adapted to receive the light beam reflected from the second mirror. The fourth mirror is positioned substantially opposite to the third mirror for receiving the light beam reflected therefrom. The fifth mirror is positioned adjacent to the second mirror and is adapted to receive the light beam reflected from the fourth mirror. The optical system further includes an imaging lens unit and an image sensor.

Abstract translation: 公开了一种用于扫描器的光学系统，其包括至少一个照明文件的光源，以及包括第一反射镜，第二反射镜，第三反射镜，第四反射镜和第五反射镜的多个反射镜。 第一反射镜位于文件的方向上以从其接收光束。 第二镜适于接收从第一反射镜反射的光束。 第三个反射镜位于文件附近，并适于接收从第二个反射镜反射的光束。 第四反射镜被定位成基本上与第三反射镜相对，用于接收从其反射的光束。 第五反射镜位于第二反射镜附近并且适于接收从第四反射镜反射的光束。 光学系统还包括成像透镜单元和图像传感器。

公开(公告)号：US20090180160A1

公开(公告)日：2009-07-16

申请号：US11972116

申请日：2008-01-10

Applicant: Chengwu Cui

Inventor： Chengwu Cui

IPC: H04N1/04

CPC classification number: H04N1/02815 ,  H04N1/0285 ,  H04N1/02875 ,  H04N1/193

Abstract: A method for uniformly illuminating a predetermined scan line position on a media sheet containing an image includes defining an optical path from a media sheet to a sensor, selecting a predetermined scan line position on the media sheet, and emitting a light beam from a light source whereby a portion of the light beam illuminates a first portion of the predetermined scan line and a portion of the light beam is reflected from a reflector to illuminate a second, opposed portion of the predetermined scan line position. A method for imaging a scan line on a media sheet includes these steps and also collecting at least a portion of the light beam reflected from or transmitted through the media sheet to image the portion of the media sheet defined by the predetermined scan line position. Still further, an optical imaging module is provided for accomplishing the described method.

Abstract translation: 用于均匀地照射包含图像的介质片上的预定扫描线位置的方法包括限定从介质片到传感器的光路，选择介质片上的预定扫描线位置，以及从光源发射光束 由此一部分光束照射预定扫描线的第一部分，并且一部分光束从反射器反射以照亮预定扫描线位置的第二相对部分。 用于对介质片上的扫描线进行成像的方法包括这些步骤，还收集从介质片反射或透过介质片的至少一部分光束，以对由预定扫描线位置限定的介质片的部分进行成像。 此外，提供了一种用于实现所述方法的光学成像模块。

公开(公告)号：US20070046930A1

公开(公告)日：2007-03-01

申请号：US11217815

申请日：2005-09-01

Applicant: Chengwu Cui ,  Larry Kiser

Inventor： Chengwu Cui ,  Larry Kiser

IPC: G01J1/42

CPC classification number: G01J1/42 ,  G01J3/50 ,  G01J2001/4247

Abstract: A method of estimating light output of a lamp in a scanner prior to the lamp being fully warmed-up. The method includes measuring a spectral characteristic of light emitted by a lamp in a scanner at a time t0 prior to the lamp being fully warmed-up and estimating the light output of the lamp at a time t1 based on the measured spectral characteristic, wherein t1 is greater than t0. A method of scanning, as well as a scanning apparatus is also provided.

Abstract translation: 一种在灯完全预热之前估计扫描仪中的灯的光输出的方法。 该方法包括在灯被完全预热之前的时间t 0℃处测量由扫描仪中的灯发出的光的光谱特性，并在时间t 1估计灯的光输出， 基于所测量的光谱特性，其中t 1> 1> 1 <1>大于t 0 0。 还提供了扫描方法以及扫描装置。

公开(公告)号：US20060256397A1

公开(公告)日：2006-11-16

申请号：US11127884

申请日：2005-05-12

Applicant: Chengwu Cui

Inventor： Chengwu Cui

IPC: H04N1/387

CPC classification number: H04N1/3876 ,  G06T7/33 ,  G06T11/00 ,  G06T2200/32 ,  G06T2207/10008 ,  G06T2207/30176

Abstract: A method and system for combining a first image and a second image where the first image and second image include an overlap portion. The method includes selecting a first stitch location for a line of pixels, calculating a first line edge value for the first stitch location, selecting a second stitch location, calculating a second line edge value for the second stitch location and comparing the line edge values. The final stitch location is selected based upon the line edge values. A second embodiment provides a method and system for selecting an algorithm for combining a first image and second image including an overlap portion. The method includes applying a first stitching algorithm to the overlap portion, calculating an overlap edge value, and comparing the overlap edge value to a predetermined threshold. If the overlap edge value is greater than the threshold, a second stitching algorithm is applied.

Abstract translation: 一种用于组合第一图像和第二图像的方法和系统，其中第一图像和第二图像包括重叠部分。 该方法包括选择一行像素的第一针迹位置，计算第一缝合位置的第一线边缘值，选择第二针迹位置，计算第二针迹位置的第二线边缘值并比较线边缘值。 根据线边缘值选择最后的针迹位置。 第二实施例提供了一种用于选择用于组合包括重叠部分的第一图像和第二图像的算法的方法和系统。 该方法包括将第一拼接算法应用于重叠部分，计算重叠边缘值，并将重叠边缘值与预定阈值进行比较。 如果重叠边缘值大于阈值，则应用第二个拼接算法。

公开(公告)号：US20060250660A1

公开(公告)日：2006-11-09

申请号：US11120932

申请日：2005-05-03

Applicant: Chengwu Cui

Inventor： Chengwu Cui

IPC: G06K9/00

CPC classification number: G06K9/2063 ,  G06K9/00442 ,  G06K2209/01

Abstract: To reduce errors introduced by a scanner, an unmarked, digital master document may be generated and stored in digital form so that subsequent scanning of the document is unnecessary to place it in digital form for comparison to a marked version of the document. Additionally, regions or fields, rather than the entire digital master document, may be individually created, stored, and subsequently used for comparison to corresponding portions of a marked version. Further, test targets or patterns may be inserted into the content of a digital master document. Characteristics of image quality degeneration and distortion can be extracted from printed versions of the test targets or patterns and used to effect closed loop control to digitally reduce image quality degeneration caused by the scanner.

Abstract translation: 为了减少由扫描仪引入的错误，可以生成并以数字形式存储未标记的数字主文档，使得文档的后续扫描不需要以数字形式放置，以与文档的标记版本进行比较。 此外，区域或字段，而不是整个数字主文档可以被单独地创建，存储，并随后用于与标记版本的对应部分进行比较。 此外，可以将测试目标或模式插入到数字主文档的内容中。 可以从打印版本的测试对象或图案中提取图像质量退化和失真的特征，并用于实现闭环控制，以数字化降低扫描仪引起的图像质量退化。

公开(公告)号：US08422096B2

公开(公告)日：2013-04-16

申请号：US12329697

申请日：2008-12-08

Applicant: Chengwu Cui ,  Charles Brandon Langrel

Inventor： Chengwu Cui ,  Charles Brandon Langrel

IPC: H04N1/04

CPC classification number: H04N1/1017 ,  H04N1/00814 ,  H04N1/00832 ,  H04N1/00978 ,  H04N1/00981 ,  H04N1/193 ,  H04N2201/0081

Abstract: Disclosed are a method and a computer program product for dissipating heat produced in a scan head assembly of an imaging apparatus during scanning of media sheets in the imaging apparatus. The method includes determining at least one of a temperature of the scan head assembly and a media sheet scan count. The method further includes moving the scan head assembly between a first position of the scan head assembly and a second position of the scan head assembly for dissipating heat, based on at least one of the temperature of the scan head assembly and the media sheet scan count.

Abstract translation: 公开了一种用于在扫描成像设备中的介质片材时消散成像设备的扫描头组件中产生的热量的方法和计算机程序产品。 该方法包括确定扫描头组件的温度和介质薄片扫描计数中的至少一个。 该方法还包括：基于扫描头组件的温度和介质片扫描计数中的至少一个，扫描头组件在扫描头组件的第一位置和扫描头组件的第二位置之间移动以消散热量 。

公开(公告)号：US20120162722A1

公开(公告)日：2012-06-28

申请号：US12980059

申请日：2010-12-28

Applicant: Eugene David Allen ,  Chengwu Cui ,  Joshua Tyler Strow

Inventor： Eugene David Allen ,  Chengwu Cui ,  Joshua Tyler Strow

IPC: H04N1/04 ,  B23Q17/00 ,  H05K7/14

CPC classification number: H04N1/02481 ,  H04N1/0249 ,  H04N2201/02414 ,  H04N2201/02416 ,  H04N2201/02429 ,  H04N2201/02439 ,  H04N2201/02456 ,  H04N2201/02466 ,  H04N2201/02485 ,  Y10T29/49764

Abstract: A mounting bracket for an image sensing unit of a scanner according to one example embodiment includes a first portion and a second portion extending from the first portion. The first portion has a plurality of elongated holes therein each for receiving a fastener to mount the mounting bracket to a scan head frame. The second portion includes a cutout section therein for allowing an image sensor of the image sensing unit to receive an image from an optical unit of the scanner. A pivot hole in the first portion is centered about a width of the cutout section. When the mounting bracket is mounted on the scan head frame, the elongated holes in the first portion permit linear adjustment of the mounting bracket relative to the scan head frame and the pivot hole permits angular adjustment of the mounting bracket relative to the scan head frame.

Abstract translation: 根据一个示例实施例的用于扫描仪的图像感测单元的安装支架包括从第一部分延伸的第一部分和第二部分。 第一部分在其中具有多个细长的孔，用于接收紧固件以将安装支架安装到扫描头框架。 第二部分包括其中允许图像感测单元的图像传感器从扫描仪的光学单元接收图像的切口部分。 第一部分中的枢轴孔围绕切口部分的宽度居中。 当安装支架安装在扫描头框架上时，第一部分中的细长孔允许安装支架相对于扫描头框架线性调节，并且枢轴孔允许安装支架相对于扫描头框架进行角度调节。

公开(公告)号：US08081353B2

公开(公告)日：2011-12-20

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管，以及重定向器，用于重定向光以限定邻近的照明参考标记 接触玻璃，用于定向待复制或扫描的物品。 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：US07911654B2

公开(公告)日：2011-03-22

申请号：US11217815

申请日：2005-09-01

Applicant: Chengwu Cui ,  Larry L. Kiser

Inventor： Chengwu Cui ,  Larry L. Kiser

IPC: H04N1/00 ,  H04N1/46

CPC classification number: G01J1/42 ,  G01J3/50 ,  G01J2001/4247

Abstract: A method of estimating light output of a lamp in a scanner prior to the lamp being fully warmed-up. The method includes measuring a spectral characteristic of light emitted by a lamp in a scanner at a time t0 prior to the lamp being fully warmed-up and estimating the light output of the lamp at a time t1 based on the measured spectral characteristic, wherein t1 is greater than t0. A method of scanning, as well as a scanning apparatus is also provided.

Abstract translation: 一种在灯完全预热之前估计扫描仪中的灯的光输出的方法。 该方法包括在灯被完全预热之前的时刻t0测量由扫描器中的灯发出的光的光谱特性，并且基于测量的光谱特性估计在时间t1的灯的光输出，其中t1 大于t0。 还提供了扫描方法以及扫描装置。