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    图像读取装置、多功能打印机、以及图像读取方法
    12.
    发明授权
    图像读取装置、多功能打印机、以及图像读取方法 失效

    公开(公告)号：CN102111524B

    公开(公告)日：2014-01-15

    申请号：CN201010597839.X

    申请日：2010-12-21

    Applicant: 佳能株式会社

    Inventor： 青山泰大 ,  竹内纪子

    IPC: H04N1/028 ,  H04N1/00

    CPC classification number: H04N1/053 ,  H04N1/484 ,  H04N5/3577 ,  H04N5/3694 ,  H04N5/3765 ,  H04N2201/0094 ,  H04N2201/02443 ,  H04N2201/04768 ,  H04N2201/04774 ,  H04N2201/04798

    Abstract: 本发明涉及一种图像读取装置、多功能打印机、以及图像读取方法。本发明针对能够在保持图像质量的同时抑制EMI不想要的辐射的图像读取。为了完成该目的，当光电变换器读取原稿图像时，执行以下处理。更具体地说，从基准信号生成应用了SSCG扩展调制的第一驱动信号以及没有应用SSCG扩展调制的第二驱动信号。选择第一驱动信号或第二驱动信号，并且基于所选择的驱动信号生成用于读取原稿图像的定时信号。使用所述定时信号锁存所述光电变换器所获得的图像信号。传送锁存的图像信号，用于后续图像处理。在读取一行图像原稿时，选择所述第二驱动信号，直到完成所述锁存操作，并且在所述锁存操作之后，选择所述第一驱动信号，用于图像信号传送操作。

    光学扫描系统
    15.
    发明公开
    光学扫描系统 无效

    公开(公告)号：CN1215841A

    公开(公告)日：1999-05-05

    申请号：CN98115992.3

    申请日：1998-07-14

    Applicant: 三星电子株式会社

    Inventor： 朴相信

    IPC: G02B26/10

    CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/4015 ,  H04N2201/02443 ,  H04N2201/04768 ,  H04N2201/04798

    Abstract: 一种光学扫描系统,包括:发射光束的光源;光束偏转单元,用于偏转光束使之顺序地落在一条预定的扫描线上;光源驱动单元,用于驱动光源,按照图像信息,通过控制光束之间的发射间隔以及相应光束的曝光时间,使光束落在沿扫描线以相等间隔排列的象素点上,并且按照包含在图像信息中的灰度值,调整光束在象素点上形成的光点的尺寸。因此,通过在沿扫描线以相等间隔排列的象素点上形成尺寸被调整的光点而表达灰度信息。

    SCANNER WITH A LINEARIZED VCO PIXEL CLOCK
    16.
    发明申请
    SCANNER WITH A LINEARIZED VCO PIXEL CLOCK 审中-公开
    带有线性VCO像素时钟的扫描仪

    公开(公告)号：WO1991020152A1

    公开(公告)日：1991-12-26

    申请号：PCT/US1991004330

    申请日：1991-06-18

    Applicant: S & R TECH DEVELOPMENT, INC.

    Inventor： S & R TECH DEVELOPMENT, INC. ,  SWANBERG, Melvin

    IPC: H04N01/04

    CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04772 ,  H04N2201/04798

    Abstract: A scanner system includes a light source for producing a light beam and scanning components for directing the light beam to a spot on a surface to be scanned that is located at a predetermined location relative to the scanning means, moving the spot across the surface along a scan line of predetermined length in a series of scan cycles. The system includes a pixel clock that produces a train of clock pulses during each of the scan cycles using a VCO circuit for producing the train of clock pulses and a control circuit for varying the timing of the clock pulses. The control circuit includes an waveshaping circuit for causing the control signal to have a waveform such that the timing of the clock pulses varies according to the position of the spot along the scan line in order to compensate for scanner non-linearity in a manner reducing pixel position distortion. One embodiment includes a digital to analog converter circuit, an absolute value circuit, and a multiple-slope amplifier circuit that shape the control signal waveform to a straight line fit of a desired curve, and the pixel clock circuitry is configured to produce exposure control pulses that reduce pixel exposure distortion.

    SCANNER WITH A LINEARIZED PIXEL CLOCK
    17.
    发明申请
    SCANNER WITH A LINEARIZED PIXEL CLOCK 审中-公开
    具有线性像素时钟的扫描仪

    公开(公告)号：WO1991019374A1

    公开(公告)日：1991-12-12

    申请号：PCT/US1991004158

    申请日：1991-06-07

    Applicant: S & R TECH DEVELOPMENT, INC.

    Inventor： S & R TECH DEVELOPMENT, INC. ,  SWANBERG, Melvin, E.

    IPC: H04N01/04

    CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04774 ,  H04N2201/04775 ,  H04N2201/04798

    Abstract: A scanner system includes a light source for producing a light beam and a director that directs the light beam to a spot on a surface to be scanned moving the spot across the surface along a scan line of predetermined length in a series of scan cycles. The scanner system has a pixel clock for producing a train of clock pulses during each of the scan cycles configured so that some of the clock pulses are spaced apart by a first time interval and others are spaced apart by a longer second time interval in order to maintain timing of the clock pulses according to spot position along the scan line in a manner that compensates for scanner non-linearity in order to reduce pixel position distortion. The pixel clock includes a reference clock for producing a train of reference pulses having a period such that at least M reference pulses occur during the time the spot moves from a first end of the scan line to a point along the scan line that is a distance from the first end of the scan line equal to L/N, where L is the length of the scan line, M is a predetermined integer, and N is a predetermined integral number of pixel positions along the scan line. The first time interval represents the occurrence of M reference pulses and the second time interval represents the occurrence of M+I reference pulses, where I is an integer.

    SYSTEM AND METHOD FOR CONTROL OF LASER SCANNERS IN AN IMAGING SYSTEM
    18.
    发明申请
    SYSTEM AND METHOD FOR CONTROL OF LASER SCANNERS IN AN IMAGING SYSTEM 审中-公开
    用于在成像系统中控制激光扫描仪的系统和方法

    公开(公告)号：WO98056164A1

    公开(公告)日：1998-12-10

    申请号：PCT/US1998/011212

    申请日：1998-06-01

    IPC: G02B26/10 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/23 ,  H04N1/50 ,  H04N1/60

    CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04712 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04746 ,  H04N2201/04768 ,  H04N2201/04793 ,  H04N2201/04798

    Abstract: A scanner module for use in an imaging system includes a laser scanner operable under control of the imaging system for scanning a laser spot along a scan line to write a plurality of pixels along the scan line. The scanner further includes a scanner module memory including pixel placement correction data downloadable to the imaging system for use in controlling the placement of pixels along the scan line. The scanner module memory may further include output power correction data downloadable to the imaging system for use in controlling the output power of the laser scanner in the generation of the plurality of pixels along the scan line. Imaging systems use the correction data stored in the one or more replaceable scanner modules for use in controlling the placement of pixels along the scan line and/or for use in controlling output pwer of the laser scanner. Systems and methods for generating the correction data for the laser scanner modules are also described. Scan correction data can be used to reduce differences in the scan profiles of multiple scanners, such that the multiple scanners produce substantially the same scan profile. In this manner, color planes formed using multiple scanners can be placed in substantial registration with one another, thereby alleviating the visual effects of scan profile differences from scanner-to-scanner.

    Abstract translation: 用于成像系统的扫描器模块包括可在成像系统的控制下操作的激光扫描器，用于沿着扫描线扫描激光点，以沿扫描线写入多个像素。 扫描仪还包括扫描器模块存储器，其包括可下载到成像系统的像素布置校正数据，用于控制沿着扫描线的像素的放置。 扫描器模块存储器还可以包括可下载到成像系统的输出功率校正数据，用于在扫描线上生成多个像素时控制激光扫描仪的输出功率。 成像系统使用存储在一个或多个可替换扫描器模块中的校正数据用于控制沿着扫描线的像素的放置和/或用于控制激光扫描器的输出端。 还描述了用于产生激光扫描器模块的校正数据的系统和方法。 可以使用扫描校正数据来减少多个扫描仪的扫描轮廓的差异，使得多个扫描仪产生基本上相同的扫描轮廓。 以这种方式，可以将使用多个扫描仪形成的彩色平面彼此基本配准，从而减轻扫描仪与扫描仪之间的扫描轮廓差异的视觉效果。

    IMAGE READER
    20.
    发明申请
    IMAGE READER 审中-公开
    图像读取器

    公开(公告)号：WO1991004629A1

    公开(公告)日：1991-04-04

    申请号：PCT/EP1990001612

    申请日：1990-09-22

    Applicant: EUROPEAN MOLECULAR BIOLOGY LABORATORY ,  HENDRIX, Jules ,  LENTFER, Arno

    Inventor： EUROPEAN MOLECULAR BIOLOGY LABORATORY

    IPC: H04N01/04

    CPC classification number: H04N1/053 ,  H04N1/029 ,  H04N1/10 ,  H04N2201/02443 ,  H04N2201/0424 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04734 ,  H04N2201/04756 ,  H04N2201/04798

    Abstract: The invention concerns an image reader (10) for a device designed to scan with laser beams a circular image plate (12) which has image elements (40) produced by irradiation with X-rays at a radial distance R from the centre of the plate. The reader has a fixture (13) on which the plate (12) is detachably mounted and which is driven by an adjustable-speed electric motor (11). The reader also has an image-element scanning unit (15; 15) which can be displaced radially by a drive (14; 18) at a pre-selected speed across the plate (12) and includes a laser-light supply (42) and an electro-optical signal-transmission device with an optical image-element scanning device (30a) and a photoelectric multiplier (36). In addition, the reader has a signal-processing device. The aim of the invention is to improve a reader of this kind so that, when the plate is scanned by the laser beam to record the image stored on the plate, the amount of light produced is maximized. In addition, the invention aims to produce a compact reader which is thus easier to use. To achieve this, it is proposed that the image-element scanning unit (15; 115) is moved over the image plate to scan each image element (40) at the same tangential speed. The laser-light supply (42) preferably has two laser sources (43a, 43b) the light from which passes through an optical filter (46) and is subsequently focused by a convergent lens (44). In addition, the drive shaft (18) of the electric motor (11) is preferably connected through gearing (23) to a spindle (26) by means of which the image-element scanning unit (15) is driven to execute translational motion radial to the image plate (12).

    Abstract translation: 本发明涉及一种用于设计成用激光束扫描的设备的图像读取器（10），该圆形图像板（12）具有通过从板的中心以径向距离R照射X射线产生的图像元素（40） 。 读取器具有固定装置（13），板（12）可拆卸地安装在其上，并由可调速电动机（11）驱动。 阅读器还具有一个图像元素扫描单元（15; 15），可以通过驱动器（14; 18）以预先选择的速度横跨板（12）径向移动，并且包括激光供应源（42） 以及具有光学图像元素扫描装置（30a）和光电倍增器（36）的电光信号传输装置。 此外，读取器具有信号处理装置。 本发明的目的在于改进这种阅读器，使得当激光束扫描板以记录存储在板上的图像时，产生的光量最大化。 另外，本发明的目的在于制造一种紧凑的读取器，因此更易于使用。 为了实现这一点，提出了图像元素扫描单元（15; 115）在图像板上移动以以相同的切向速度扫描每个图像元素（40）。 激光供应源（42）优选地具有两个激光源（43a，43b），该光源通过滤光器（46）并随后被会聚透镜（44）聚焦。 此外，电动机（11）的驱动轴（18）优选地通过齿轮（23）连接到主轴（26），通过该主轴驱动图像元素扫描单元（15），以执行平移运动径向 到图像板（12）。

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