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    A scanner system with automatic compensation of positioning errors
    131.
    发明公开
    A scanner system with automatic compensation of positioning errors 失效
    Abtastsystem mit automatischer Positionsfehlerkompensation

    公开(公告)号：EP0849932A1

    公开(公告)日：1998-06-24

    申请号：EP97203908.5

    申请日：1997-12-12

    Applicant: Océ-Technologies B.V.

    Inventor： Classens, Wilhelmus Peter Johannes

    IPC: H04N1/193 ,  H04N1/047

    CPC classification number: H04N1/193 ,  H04N1/047 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/04703 ,  H04N2201/04715 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04749 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

    Abstract: Apparatus for optically scanning a document and in so doing generating digital image data corresponding to local optical densities of the document, comprising a fixed glass plate, one side of which defines an original plane, transport means for transporting the said document in a sub-scanning direction in the original plane, at least two linear sensors situated in a main scanning direction, each comprising an array of opto-electrical converters and each provided with a lens which images on the sensor a linear observation area, situated in the original plane, the observation areas of the sensors being substantially in line and partially overlapping at the ends in the main scanning direction, an aligning element situated between the lenses and the original plane at a short distance from the latter in a position such that its perpendicular projection on to the original plane is situated within the overlapping ends of two adjoining observation areas, wherein the aligning element has a shape such that for each sensor in whose observation area it is situated the aligning element has a width in the main scanning direction which increases or decreases continuously as a function of the sub-scanning direction.

    Abstract translation: 用于光学扫描文件并且产生对应于文档的本地光学密度的数字图像数据的装置，包括固定玻璃板，其一侧限定原始平面，用于在副扫描中传送所述文档的传送装置 在原平面中的至少两个线性传感器，位于主扫描方向上的至少两个线性传感器，每个线性传感器包括光电转换器阵列，并且每个线性传感器设置有在传感器上图像位于原始平面中的线性观察区域的透镜， 传感器的观察区域在主扫描方向上的端部处基本上成一行并且部分地重叠，定位元件位于透镜与原始平面之间的距离较远的距离处，使其垂直投影在 原始平面位于两个相邻的观察区域的重叠端部内，其中对准元件具有形状 e，对于其位于其观察区域的每个传感器，对准元件具有主扫描方向上的宽度，作为副扫描方向的函数而连续地增加或减少。

    Image recorder having automatic alignment method and apparatus
    134.
    发明授权
    Image recorder having automatic alignment method and apparatus 失效
    具有自动对准方法和装置的图像记录器

    公开(公告)号：EP0274447B1

    公开(公告)日：1991-03-13

    申请号：EP88300137.2

    申请日：1988-01-08

    Applicant: MANAGEMENT GRAPHICS, INC.

    Inventor： Kriz, J. Stanley ,  Glass, William H. ,  Olson, Thor A.

    IPC: H04N1/38 ,  G03G15/32

    CPC classification number: G03B27/72 ,  H04N1/047 ,  H04N1/1004 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/0471 ,  H04N2201/04717 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

    Abstract: The apparatus according to the present invention provides an alignment mask disposed in the CRT plane, and the CRT parameters are measured by observation of the light collected through the alignment mask from the CRT and processing the corresponding light intensity signals. The light sensing device provides a signal which is processed typically by a microprocessor controlled geometry engine to derive a set of correction data which is based on a prototype array of initialized data values. The parameters corrected by the apparatus and method according to the present invention include x and y position, focus and relative picture intensity over the surface of the screen (vignette). The above listed parameters are used alone and in combination to provide image centering, image scaling and pincushion correction, correction for non-orthogonality between the x and y deflection coils, image rotation and correction for nonlinear second and third order effects. The set of data can also be deliberately distorted to provide image precompensation such as keystone (trapezoid) and spherical corrections as well as vignette compensation such that, when the final image is projected or displayed, a true (nondistorted) image results.

    Image recorder having automatic alignment method and apparatus
    135.
    发明公开
    Image recorder having automatic alignment method and apparatus 失效
    Bilaufzeichnungsgerätmit automatischer Ausrichtmethode und -vorrichtung。

    公开(公告)号：EP0274447A2

    公开(公告)日：1988-07-13

    申请号：EP88300137.2

    申请日：1988-01-08

    Applicant: MANAGEMENT GRAPHICS, INC.

    Inventor： Kriz, J. Stanley ,  Glass, William H. ,  Olson, Thor A.

    IPC: H04N1/38 ,  G03G15/32

    CPC classification number: G03B27/72 ,  H04N1/047 ,  H04N1/1004 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/0471 ,  H04N2201/04717 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

    Abstract: The apparatus according to the present invention provides an alignment mask disposed in the CRT plane, and the CRT parameters are measured by observation of the light collected through the alignment mask from the CRT and processing the corresponding light intensity signals. The light sensing device provides a signal which is processed typically by a microprocessor controlled geometry engine to derive a set of correction data which is based on a prototype array of initialized data values. The parameters corrected by the apparatus and method according to the present invention include x and y position, focus and relative picture intensity over the surface of the screen (vignette). The above listed parameters are used alone and in combination to provide image centering, image scaling and pincushion correction, correction for non-orthogonality between the x and y deflection coils, image rotation and correction for nonlinear second and third order effects. The set of data can also be deliberately distorted to provide image precompensation such as keystone (trapezoid) and spherical corrections as well as vignette compensation such that, when the final image is projected or displayed, a true (nondistorted) image results.

    Abstract translation: 根据本发明的装置提供了设置在CRT平面中的对准掩模，并且通过观察通过对准掩模从CRT收集的光并处理相应的光强度信号来测量CRT参数。 光感测装置提供信号，其通常由微处理器控制的几何引擎进行处理，以导出基于初始化数据值的原型阵列的一组校正数据。 通过根据本发明的装置和方法校正的参数包括在屏幕表面上的x和y位置，焦点和相对图像强度（小插曲）。 以上列出的参数单独使用并组合使用以提供图像定心，图像缩放和枕形校正，校正x和y偏转线圈之间的非正交性，图像旋转和非线性二阶和三阶效应的校正。 该组数据也可能被故意扭曲，以提供图像预补偿，如梯形（梯形）和球面校正以及晕影补偿，使得当投影或显示最终图像时，会产生真实（非失真）图像。

    Image forming apparatus
    139.
    发明公开
    Image forming apparatus 审中-公开
    成像设备

    公开(公告)号：EP1096780A2

    公开(公告)日：2001-05-02

    申请号：EP00123120.8

    申请日：2000-10-25

    Applicant: KONICA CORPORATION

    Inventor： Ui, Makoto ,  Haibara, Fumio ,  Yokobori, Jun ,  Niitsuma, Tetsuya ,  Joichi, Norio

    IPC: H04N1/23 ,  H04N1/053

    CPC classification number: H04N1/2323 ,  B41J11/003 ,  B41J11/008 ,  B41J11/0095 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/2307 ,  H04N1/233 ,  H04N1/2338 ,  H04N1/2369 ,  H04N2201/03162 ,  H04N2201/04712 ,  H04N2201/04732 ,  H04N2201/04737 ,  H04N2201/04786 ,  H04N2201/04787

    Abstract: The invention concerns an image forming apparatus provided with an automatic writing-position determining device for forming an image always at a correct position on the recording material. The image forming apparatus includes an image forming section to form an image by writing each of scanning lines, an end position detecting section to detect an end position of a recording material in a direction orthogonal to a conveyance direction of the recording material, and a selecting section to select either an automatic writing-position determining mode or a predetermined writing-position determining mode. When the selecting section selects the automatic writing-position determining mode, the image forming section commences an image writing action from a writing start position determined on the basis of a detected result of the end position detecting device. When the selecting section selects the predetermined writing-position determining mode, the image forming section commences the image writing action from a predetermined writing start position set in advance.

    Abstract translation: 本发明涉及一种设置有自动书写位置确定装置的图像形成装置，该装置用于始终在记录材料上的正确位置形成图像。 该图像形成设备包括：图像形成部分，用于通过写入每个扫描线来形成图像;结束位置检测部分，用于检测在与记录材料的传送方向正交的方向上的记录材料的结束位置;以及选择 选择自动书写位置确定模式或预定书写位置确定模式。 当选择部分选择自动书写位置确定模式时，图像形成部分从根据结束位置检测装置的检测结果确定的写入开始位置开始图像写入动作。 当选择部分选择预定的书写位置确定模式时，图像形成部分从预先设置的预定写入开始位置开始图像写入动作。

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