公开(公告)号：US20020093692A1

公开(公告)日：2002-07-18

申请号：US09761492

申请日：2001-01-16

Applicant: Xerox Corporation

Inventor： Christopher J. Spencer

IPC: H04N001/40 ,  H04N001/04

CPC classification number: H04N1/0071 ,  H04N1/00681

Abstract: A structure and method for improved detection of the edges of a document in a scanner provides for positioning a width detection backer so that it is simultaneously in the field of view of the optical element of the scanner and out of the focal plane of the optical element. A portion of a document is positioned in the optical path between the optical element and the width detection backer and scanned with the optical element. Information from the scanning step is analyzed to identify data indicative of an edge of the document. The out of focus width detection backer, which remains stationary while scanning the document portion presents very little variation in intensity and other data, heightening the contrast between the document and the width detection backer, and reducing the likelihood of erroneously identifying elements of the width detection backer as document edge features.

Abstract translation: 用于改进扫描仪中的文件边缘检测的结构和方法提供了定位宽度检测支持器，使得其同时位于扫描器的光学元件的视野中并且位于光学元件的焦平面之外 。 文档的一部分位于光学元件和宽度检测支架之间的光路中，并用光学元件扫描。 分析来自扫描步骤的信息以识别指示文档边缘的数据。 在扫描文档部分时保持静止的对焦宽度检测支持对象在强度和其他数据上的变化非常小，增加了文档和宽度检测支持者之间的对比度，并且降低了错误地识别宽度检测元素的可能性 支持者作为文档边缘功能。

公开(公告)号：US20020093696A1

公开(公告)日：2002-07-18

申请号：US09761493

申请日：2001-01-16

Applicant: Xerox Corporation

Inventor： Christopher J. Spencer ,  Daniel P. White ,  David A. Bartman

IPC: H04N001/46

CPC classification number: H04N1/0312 ,  H04N1/0315 ,  H04N1/0318 ,  H04N1/121 ,  H04N2201/02406 ,  H04N2201/02408 ,  H04N2201/02414 ,  H04N2201/02427 ,  H04N2201/02429 ,  H04N2201/02445 ,  H04N2201/02449 ,  H04N2201/02456 ,  H04N2201/02474 ,  H04N2201/02479 ,  H04N2201/02493 ,  H04N2201/03112 ,  H04N2201/03141 ,  H04N2201/03145

Abstract: An integrated image module for a document scanner includes a one piece die cast housing having a datum element and a support element. An imaging sensor array is enclosed in the housing. An array bias element urges the imaging sensor array against the datum element to provide accurate placement of the sensor array relative to the housing. A transport mechanism is attached to the housing so that the position of the transport mechanism accurately corresponds to the position of the imaging sensor array. The lens and the lamp for illumination are also attached to the housing so that the primary components of the imaging portion of the scanner are contained in a single module.

Abstract translation: 用于文件扫描器的集成图像模块包括具有基准元件和支撑元件的一体式压铸外壳。 成像传感器阵列封装在外壳中。 阵列偏置元件将成像传感器阵列推向基准元件以提供传感器阵列相对于壳体的精确放置。 传送机构附接到壳体，使得传送机构的位置精确地对应于成像传感器阵列的位置。 透镜和用于照明的灯也附接到壳体，使得扫描仪的成像部分的主要部件被包含在单个模块中。