Image reader for use in image forming apparatus
    93.
    发明授权
    Image reader for use in image forming apparatus 失效
    用于图像形成装置的图像读取器

    公开(公告)号:US06788435B2

    公开(公告)日:2004-09-07

    申请号:US09749549

    申请日:2000-12-28

    Abstract: An image reader of the present invention comprises a fluctuation detector that can be connected to the external equipment by means of an image data input-output section, and can subject image data, continuous in a first direction and outputted as image information on a test chart is photoelectrically converted by means of a CCD sensor when a mirror set or the test chart is moved in the first direction, to Fourier conversion, thereby obtaining the frequency of a fluctuation of the obtained image data and a maximum value of the amplitude thereof. If the obtained maximum value of the fluctuation amplitude is greater than a given value, the fluctuation detector is used to compare the frequency of the fluctuation and the natural frequency of a drive motor for generating driving force for moving the mirror set or the image. If the fluctuation frequency and the natural frequency are not equal, the value of current supplied to the drive motor is increased.

    Abstract translation: 本发明的图像读取装置包括:波动检测器,其能够通过图像数据输入输出部连接到外部设备,并且可以将图像数据沿第一方向连续地作为图像信息输出到测试图上 当反射镜组或测试图沿​​第一方向移动时,通过CCD传感器进行光电转换,进行傅里叶变换,从而获得所获得的图像数据的波动频率和其幅度的最大值。 如果获得的波动幅度的最大值大于给定值,则波动检测器用于比较用于产生用于移动镜像组或图像的驱动力的驱动马达的波动频率和固有频率。 如果波动频率和固有频率不相等,则提供给驱动马达的电流值增加。

    Tension adjustable mechanism for reciprocatingly moving print/read head device
    94.
    发明授权
    Tension adjustable mechanism for reciprocatingly moving print/read head device 有权
    用于往复运动的打印/读取头装置的张力可调机构

    公开(公告)号:US06690494B1

    公开(公告)日:2004-02-10

    申请号:US09357660

    申请日:1999-07-20

    Inventor: Noriyuki Yamada

    Abstract: The invention includes a driving pulley mounted to a carriage driving motor fixed to a chassis frame of a facsimile apparatus, a following pulley mounted to a bracket that is movably mounted along a guide groove provided in a chassis frame, and a timing belt rotated around the driving pulley and the following pulley. The top end of a guide shaft protruded from a base block of the bracket, is movably supported by a support portion uniformly protruded from the chassis frame. A compression spring provided to the guide shaft is arranged between the support portion and the bracket, and presses the bracket to apply tension to the timing belt. The bracket is restricted so as not to approach the driving pulley using a stopper fixed to the chassis frame. Therefore, the tension of the timing belt for reciprocatingly moving the carriage mounting the print head, is not loosened.

    Abstract translation: 本发明包括安装到固定到传真机的机架框架上的滑架驱动马达的驱动滑轮,安装在托架上的随动滑轮,其沿着设置在底盘框架中的引导槽可移动地安装, 驱动滑轮和下一个滑轮。 从支架的基座突出的引导轴的顶端由从底盘框架均匀地突出的支撑部分可移动地支撑。 设置在引导轴上的压缩弹簧被布置在支撑部分和支架之间,并且按压支架以向同步带施加张力。 支架被限制,以便不使用固定在底盘框架上的止动件接近驱动滑轮。 因此,用于使安装打印头的托架往复移动的同步带的张力不松动。

    Planar focus correction
    95.
    发明授权
    Planar focus correction 失效
    平面对焦校正

    公开(公告)号:US06567126B1

    公开(公告)日:2003-05-20

    申请号:US09346201

    申请日:1999-07-01

    Abstract: The present invention relates to the correction of planar focus in an electronic still or video camera. The camera includes: a detector array an objective lens arranged to direct optical radiation from an object plane onto the detector the lens defining an optical axis of the camera and the object plane being at an oblique angle to the optical axis movement device to change the relative orientation of the detector with respect to the lens so that the detector and lens may be moved relatively toward or away from each other along the optical axis and also tilted with respect to each other with at least one degree of freedom and focus detection device connected to the detector to detect when a portion of an image falling on the detector is in focus. The camera also includes a processor device to control the movement device according to the detected focus, the processor device bringing the image into focus on the detector by first changing the relative orientation of the lens and detector until a first portion of the image is in focus, and then holding said first portion in focus whilst continuing to change the relative orientation of the lens and detector until a second portion of the image is also in focus.

    Abstract translation: 本发明涉及电子静态或摄像机中的平面焦点校正。 照相机包括:检测器阵列,物镜,被布置成将来自物平面的光辐射引导到检测器上,所述透镜限定照相机的光轴,并且物平面与光轴运动装置成倾斜的角度,以改变相对 检测器相对于透镜的取向,使得检测器和透镜可以沿着光轴相对移动或相互移动,并且还相对于彼此倾斜,并且至少一个自由度并且焦点检测装置连接到 用于检测落在检测器上的图像的一部分是否被聚焦的检测器。 照相机还包括处理器装置,以根据检测到的焦点来控制移动装置,处理器装置通过首先改变透镜和检测器的相对取向使图像聚焦在检测器上,直到图像的第一部分处于焦点 ,然后将所述第一部分保持在对焦状态,同时继续改变透镜和检测器的相对定向,直到图像的第二部分也被聚焦。

    Image processing apparatus and image scanning apparatus
    96.
    发明申请
    Image processing apparatus and image scanning apparatus 审中-公开
    图像处理装置和图像扫描装置

    公开(公告)号:US20030090742A1

    公开(公告)日:2003-05-15

    申请号:US10279878

    申请日:2002-10-25

    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空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处的像素信息来校正从原稿读取的图像数据。

    System for minimizing image defects in a hard-copy input scanner
    97.
    发明授权
    System for minimizing image defects in a hard-copy input scanner 有权
    用于最小化硬拷贝输入扫描仪图像缺陷的系统

    公开(公告)号:US06522431B1

    公开(公告)日:2003-02-18

    申请号:US09298888

    申请日:1999-04-26

    CPC classification number: H04N1/04 H04N2201/046

    Abstract: In a document handler associated with a scanner, such as for a digital copier or facsimile machine, an image-bearing sheet is moved over a window, through which the image is recorded by a photosensitive chip. When a spot of dirt attaches to the window, a streak results in the image data. This streaking problem is minimized by having the scan line viewed by the photosensitive chip move a small distance within the window of the document handler, so that any spot on the window will not be repeatedly exposed by the photosensitive chip.

    Abstract translation: 在与扫描仪相关联的文件处理器(例如数字复印机或传真机)中,图像承载片材在窗口上移动,通过该窗口,图像由感光芯片记录。 当污垢附着在窗户上时,条纹会导致图像数据。 通过使由感光芯片观察到的扫描线在文件处理器的窗口内移动一小段距离使得该条纹问题被最小化,使得窗口上的任何点都不会被感光芯片重复曝光。

    Image reader for use in image forming apparatus
    98.
    发明申请
    Image reader for use in image forming apparatus 审中-公开
    用于图像形成装置的图像读取器

    公开(公告)号:US20020191230A1

    公开(公告)日:2002-12-19

    申请号:US09749549

    申请日:2001-04-04

    Abstract: An image reader of the present invention comprises a fluctuation detector that can be connected to the external equipment by means of an image data input-output section, and can subject image data, continuous in a first direction and outputted as image information on a test chart is photoelectrically converted by means of a CCD sensor when a mirror set or the test chart is moved in the first direction, to Fourier conversion, thereby obtaining the frequency of a fluctuation of the obtained image data and a maximum value of the amplitude thereof. If the obtained maximum value of the fluctuation amplitude is greater than a given value, the fluctuation detector is used to compare the frequency of the fluctuation and the natural frequency of a drive motor for generating driving force for moving the mirror set or the image. If the fluctuation frequency and the natural frequency are not equal, the value of current supplied to the drive motor is increased.

    Abstract translation: 本发明的图像读取装置包括:波动检测器,其能够通过图像数据输入输出部连接到外部设备,并且可以将图像数据沿第一方向连续地作为图像信息输出到测试图上 当反射镜组或测试图沿​​第一方向移动时,通过CCD传感器进行光电转换,进行傅里叶变换,从而获得所获得的图像数据的波动频率和其幅度的最大值。 如果获得的波动幅度的最大值大于给定值,则波动检测器用于比较用于产生用于移动镜像组或图像的驱动力的驱动马达的波动频率和固有频率。 如果波动频率和固有频率不相等,则提供给驱动马达的电流值增加。

    Multibeam scanning device for scanning a photosensitive material with a multi-spot array, and method of correcting the position of image points of the multi-spot array
    99.
    发明申请
    Multibeam scanning device for scanning a photosensitive material with a multi-spot array, and method of correcting the position of image points of the multi-spot array 审中-公开
    用于利用多点阵列扫描感光材料的多光束扫描装置,以及校正多点阵列的图像点的位置的方法

    公开(公告)号:US20020135745A1

    公开(公告)日:2002-09-26

    申请号:US10073848

    申请日:2002-02-11

    CPC classification number: H04N1/04 G02B6/4221 G02B6/425 H04N2201/046

    Abstract: A multibeam scanning device for scanning a photosensitive material with a multi-spot array includes a plurality of fiber exits, which are in each case detachably inserted into a holder of a mount of the multibeam scanning device. The fiber exits are aligned in order to generate a precise multi-spot array. A method for correcting the position of image points of a multi-spot array is also provided. The fiber exits are inserted into the holder such that they have a defined rotational angle in relation to their axis and such that all image points have substantially the same angular alignment in relation to their desired position. Then the distances of the individual image points from their desired positions are reduced by deflecting the laser beams and/or by delaying the time of incidence of the laser beams on the photosensitive material.

    Abstract translation: 用于以多点阵列扫描感光材料的多光束扫描装置包括多个光纤出口,每个光纤出口可拆卸地插入多光束扫描装置的支架的支架中。 光纤出口被对准以产生精确的多点阵列。 还提供了用于校正多点阵列的图像点的位置的方法。 纤维出口被插入到保持器中,使得它们相对于其轴线具有限定的旋转角度,并且使得所有图像点相对于其期望位置具有基本上相同的角度对准。 然后通过使激光束偏转和/或延迟激光束在感光材料上的入射时间来减小各个图像点与其所需位置的距离。

    Stochastic scanning documents to change moire effects
    100.
    发明授权
    Stochastic scanning documents to change moire effects 失效
    随机扫描文件改变莫尔效应

    公开(公告)号:US06320680B1

    公开(公告)日:2001-11-20

    申请号:US09099864

    申请日:1998-06-18

    Abstract: An additional motion is introduced into a scanning operation. This additional motion is in addition to the motion that is inherent in any document scanning operation. For example, in a flatbed scanner a linear array of scanning devices is positioned across the document in a first or “x” direction and this array is moved across the document in a perpendicular or “y” direction. In a flatbed scanner the position of the scanning devices are fixed in the “x” direction. In a drum scanner a light beam moves across the document in an “x” direction and the document is moved in the “y” direction. The light reflected from the document is directed to a fixed photoreceptor. With the present invention an additional vibratory motion is introduced into the scanning process. With a flatbed scanner the array of detector devices is moved or vibrated. The vibratory motion can for example be in the “x” direction. With a drum scanner the photoreceptor is moved or vibrated. For example the photodetector can be moved or vibrated in the “x” direction. The amount and direction of the vibratory movement can vary up to about one half the distance between units in the scanner's resolution (i.e. one half a pixel). If one is trying to eliminate Moiré patterns the vibratory movement can be a pseudo random series of movements. If one is trying to introduce a special pattern into the document or to otherwise create special effects, various other type of motion can be used. Movement of the CCD array in a flatbed scanner or movement of the photoreceptor in a drum scanner can be done by a simple piezo electric transducer or by a simple mechanical cam.

    Abstract translation: 在扫描操作中引入了一个附加的动作。 这种额外的运动是除了任何文件扫描操作中固有的运动之外。 例如,在平板扫描器中,扫描装置的线性阵列以第一或“x”方向跨过文件定位,并且该阵列沿垂直或“y”方向移动穿过文件。 在平板扫描仪中,扫描装置的位置固定在“x”方向。 在鼓式扫描仪中,光束以“x”方向跨过文件移动,原稿沿“y”方向移动。 从文件反射的光被引导到固定的感光体。 利用本发明,在扫描过程中引入了额外的振动运动。 使用平板扫描器,检测器装置的阵列被移动或振动。 振动运动可以例如在“x”方向。 使用鼓式扫描器,感光体被移动或振动。 例如,光电检测器可以在“x”方向移动或振动。 振动运动的量和方向可以在扫描仪的分辨率(即,一半像素)内的单位之间的距离上变化大约一半。 如果一个人试图消除莫尔图案,振动运动可以是一个伪随机的运动系列。 如果试图在文件中引入特殊的图案或者另外产生特殊效果,则可以使用各种其他类型的运动。 CCD阵列在平板扫描仪中的移动或感光体在鼓式扫描器中的移动可以通过简单的压电换能器或简单的机械凸轮进行。

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