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    Image processing apparatus and image scanning apparatus
    131.
    发明公开
    Image processing apparatus and image scanning apparatus 审中-公开
    Bildverarbeitungsvorrichtung undBildlesegerät

    公开(公告)号：EP1307039A2

    公开(公告)日：2003-05-02

    申请号：EP02257427.1

    申请日：2002-10-25

    Applicant: Ricoh Company Ltd.

    Inventor： Fukuda, Hiroaki ,  Miyazaki, Shinya ,  Namizuka, Yoshiyuki ,  Wakahara, Shinichi ,  Baba, Hiroyuki ,  Okimoto, Morihiko

    IPC: H04N1/04 ,  H04N1/19 ,  H04N1/401

    CPC classification number: H04N1/4097 ,  H04N1/04 ,  H04N1/0461 ,  H04N1/19 ,  H04N1/401 ,  H04N2201/046

    Abstract: An image processing apparatus and an image scanning apparatus detect a position of an abnormal pixel caused by obstruction to reflected light from a manuscript due to dust and others and correct the abnormal pixel by using data of normal pixels surrounding the abnormal pixel on the basis of a result of the detection. Based on image data read from a null-image prior to optical reading of a manuscript, an abnormal pixel detecting part detects the position of the abnormal pixel caused by the dust and others lying on a contact glass equipped between the manuscript and a CCD. An abnormal pixel correcting part uses pixel information at the position of the abnormal pixel detected by the abnormal pixel detecting part to correct image data read from the manuscript.

    Abstract translation: 图像处理装置和图像扫描装置检测由于灰尘等引起的来自原稿的反射光的异常像素的位置，并且通过使用围绕异常像素的正常像素的数据来校正异常像素 检测结果。 基于在原稿光学读取之前从零点图像读取的图像数据，异常像素检测部分检测由放置在原稿和CCD之间的接触玻璃上的灰尘等引起的异常像素的位置。 异常像素校正部使用由异常像素检测部检测出的异常像素的位置的像素信息来校正从原稿读取的图像数据。

    Vibration suppression apparatus
    132.
    发明公开
    Vibration suppression apparatus 审中-公开
    装置，用于抑制振动

    公开(公告)号：EP0929177A2

    公开(公告)日：1999-07-14

    申请号：EP99300030.6

    申请日：1999-01-04

    Applicant: XEROX CORPORATION

    Inventor： Nowak, William J.

    IPC: H04N1/04

    CPC classification number: H04N1/00519 ,  H04N1/00559 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/046

    Abstract: An apparatus for suppressing print quality degradation due to vibrations in a printing machine structure. The apparatus comprises a vibration member (15) having a structural resonance, a transducer (28), and means (30) for damping vibrations. The transducer (28) is mounted to the vibration member and produces electrical signals corresponding to mechanical vibrations of the vibration member (15). The damping means (36) is connected across the transducer (28) and is responsive to the electrical signals.

    Scanning method and apparatus for banding suppression
    133.
    发明公开
    Scanning method and apparatus for banding suppression 失效
    用于抑制带效应扫描的方法和装置

    公开(公告)号：EP0740454A3

    公开(公告)日：1999-04-14

    申请号：EP96302857.6

    申请日：1996-04-24

    Applicant: XEROX CORPORATION

    Inventor： Wong, Lam F.

    IPC: H04N1/047 ,  H04N1/191

    CPC classification number: H04N1/1912 ,  G06K15/1261 ,  G06K2215/111 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/046

    Abstract: A method and apparatus for producing within an imaging area (18) of a charged surface (16) and without significant banding, an array of pixel spots forming image scan lines (20,22) including a start-of-image scan line (20a). The method and apparatus include a ROS (24) for generating an even number of light beams. The ROS includes a rotating polygon assembly (40) having a plural number of facets 'F' for each deflecting the even number of light beams onto the imaging area of the charged surface forming scanning beams for simultaneously each producing an image scan line. The method and apparatus also include a controller (50) for controlling the even number of light beams so that a scanning beam spacing "d" is maintained where "d" is equal to 'F'-1, and so that at start-of-producing the pixel spots forming the image scan lines, the beams are offset relative to the start-of-image scan line and only one-half the even number of light beams is deflected onto the imaging area of the charged surface to each form an image scan line.

    Radiation beam scanning apparatus and method
    134.
    发明公开
    Radiation beam scanning apparatus and method 失效
    辐射束扫描装置和方法

    公开(公告)号：EP0847184A1

    公开(公告)日：1998-06-10

    申请号：EP97309828.8

    申请日：1997-12-05

    Applicant: Fujifilm Electronic Imaging Limited

    Inventor： Gouch, Martin Philip

    IPC: H04N1/04 ,  G02B27/00

    CPC classification number: G02B26/10 ,  G02B26/06 ,  H04N1/0607 ,  H04N1/0635 ,  H04N2201/046

    Abstract: Radiation beam scanning apparatus comprises a rotatable reflector (10) for causing an incident radiation beam to undergo a scanning movement; and a compensating device (4) on to which the radiation beam impinges before reaching the rotating reflector. The compensating device modifies the optical path of circumferentially spaced portions of the beam upstream of the reflector (10), in phase with the rotation of the reflector, so as to compensate for distortions in the reflected beam introduced by the reflector.

    Abstract translation: 辐射束扫描装置包括用于使入射辐射束经历扫描运动的可旋转反射器（10） 和补偿装置（4），辐射束在到达旋转反射器之前撞击到补偿装置（4）上。 补偿装置与反射器的旋转同相地修改反射器（10）上游的光束的圆周间隔部分的光路，以便补偿由反射器引入的反射光束的失真。

    Vorrichtung zum Umwandeln von Lichtsignalen in Videosignale
    136.
    发明公开
    Vorrichtung zum Umwandeln von Lichtsignalen in Videosignale 失效
    用于将光信号转换为视频信号的设备

    公开(公告)号：EP0635968A3

    公开(公告)日：1995-02-15

    申请号：EP94116459.2

    申请日：1990-07-06

    Applicant: EASTMAN KODAK COMPANY ,  KODAK AKTIENGESELLSCHAFT

    Inventor： Mutze, Ulrich, Dr. ,  Renner, Meinrad

    IPC: H04N1/393 ,  H04N1/10

    CPC classification number: H04N1/393 ,  H04N1/1008 ,  H04N1/1013 ,  H04N1/1052 ,  H04N1/113 ,  H04N1/193 ,  H04N1/195 ,  H04N2201/0404 ,  H04N2201/0458 ,  H04N2201/046

    Abstract: Es handelt sich um Vorrichtung zum Umwandeln der Lichtsignale eines an einem Gegenstandsträger (21,21a,21b) befindlichen flachen Gegenstandes, der sich im wesentlichen in einer Dingebene erstreckt, in Videosignale mittels eines an einem Träger angeordneten CCD-Sensors (32,32a,32b) und einer ein Objektiv (35,35a,35b) aufweisenden optischen Einrichtung, die einen Strahlengang mit einer optischen Achse (30,30a,30b) definiert und zur Abbildung des Gegenstandes auf dem CCD-Sensor (32,32a,32b) einstellbar ist, wobei die optische Einrichtung einen steuerbaren Strahlversetzer (217,219;317,319) für eine wahlweise planparallele Versetzung der auf den CCD-Sensor (32a, 32b) treffenden Lichtstrahlen längs der Ebene seiner Sensorfläche aufweist, so daß Bildinformationen, die ohne Lichtstrahlversetzung in unwirksame Lücken zwischen aneinandergrenzenden empfindlichen Sensorflächen des CCD-Sensors fallen würden, auf empfindliche Sensorflächen des Sensors auftreffen.

    Abstract translation: 这是用于在一个物品的载体转化的所述光信号（21,21a，21B）位于由设置在支撑CCD传感器32,32A，32B的装置中的事平面内基本上延伸（成视频信号扁平物体 ）和透镜（35,35a和35b），其具有的光学装置，用于具有光轴（30,30A的光路，30B）和用于在CCD传感器（32,32A成像对象定义，32B）是可调节的 ，其中所述光学装置的可控光束置换器（217.219; 317.319）（32A，32B）的光束入射包括CCD传感器的沿其传感器表面的平面内的任选的平行平面位移，从而其邻接于没有光束之间无效间隙偏移的图像信息 CCD传感器的敏感传感器表面会落在传感器的敏感传感器表面上。

    用於半色調影像的掃描之莫而干涉紋圖案縮減技術
    139.
    发明专利
    用於半色調影像的掃描之莫而干涉紋圖案縮減技術 失效
    用于半色调影像的扫描之莫而干涉纹图案缩减技术

    公开(公告)号：TW474099B

    公开(公告)日：2002-01-21

    申请号：TW089108544

    申请日：2000-05-04

    Applicant: 惠普公司

    Inventor： 布萊恩L 哈斯汀 ,  丹恩L 道頓

    IPC: H04N

    CPC classification number: H04N1/0402 ,  H04N1/0414 ,  H04N1/0443 ,  H04N1/0455 ,  H04N2201/046

    Abstract: 莫而圖案被明顯地壓制成連續變化每一英吋之線條數。在與該掃描器與該文件之間相對移動不同方向上每一英吋的點數通常是該光學感應器的特性，但在LPI方向上，在該連續線條之間的距離可以在一最大值與一最小值之間隨機變化。這樣空間地分佈該莫而效應，及防止它的累積成一般可以被確認的二維圖案。

    Abstract in simplified Chinese: 莫而图案被明显地压制成连续变化每一英吋之线条数。在与该扫描仪与该文档之间相对移动不同方向上每一英吋的点数通常是该光学感应器的特性，但在LPI方向上，在该连续线条之间的距离可以在一最大值与一最小值之间随机变化。这样空间地分布该莫而效应，及防止它的累积成一般可以被确认的二维图案。

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