公开(公告)号：US20090041440A1

公开(公告)日：2009-02-12

申请号：US12228220

申请日：2008-08-11

Applicant: Yasuhiko Yoshihisa

Inventor： Yasuhiko Yoshihisa

IPC: H02P7/285

CPC classification number: H04N1/1017 ,  H04N1/00236 ,  H04N1/0473 ,  H04N1/1026 ,  H04N1/193 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04725 ,  H04N2201/04731 ,  H04N2201/04755 ,  H04N2201/04791 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: The invention provides, as an aspect thereof, an document reading apparatus that includes: a speed calculating unit that calculates a speed related to the rotation of a motor on the basis of a signal that is outputted from an encoder; and a controlling unit that calculates control amount on the basis of the speed calculated by the speed calculating unit so as to control the rotation of the motor in accordance with the calculated control amount. In the configuration of an document reading apparatus according to this aspect of the invention, the above-mentioned controlling unit controls the motor with an increase in the control amount in a case where there occurs no change in the signal that is outputted from the encoder for a certain period of time. The increase in the control amount is based on the length of time that has elapsed since the last change in the signal.

Abstract translation: 本发明的一个方面提供了一种文件读取装置，其包括：速度计算单元，其基于从编码器输出的信号计算与马达的旋转相关的速度; 以及控制单元，其基于由速度计算单元计算的速度来计算控制量，以便根据计算出的控制量来控制电动机的旋转。 在根据本发明的该方面的文件读取装置的结构中，上述控制单元在从编码器输出的信号不发生变化的情况下，随着控制量的增加而控制电动机 一段时间。 控制量的增加是基于从信号的最后一次变化起经过的时间长度的。

公开(公告)号：US20070058234A1

公开(公告)日：2007-03-15

申请号：US11226549

申请日：2005-09-14

Applicant: Eric Oettinger ,  Robert Jansen ,  Arthur Turner

Inventor： Eric Oettinger ,  Robert Jansen ,  Arthur Turner

IPC: G02B26/08

CPC classification number: G02B26/101 ,  H04N1/047 ,  H04N1/113 ,  H04N2201/02416 ,  H04N2201/02425 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: A method for maintaining the amplitude of oscillations of a mirror system comprising a high-Q resonant mirror driven by a high speed drive signal. Sensors monitor the sweep amplitude of the high-Q resonant mirror and a parameter of the drive signal is adjusted to maintain the sweep amplitude of the mirror at a constant value. According to one embodiment, the frequency of the drive signal is adjusted to more closely track the resonant frequency of the mirror, and according to another embodiment, the amplitude of the drive signal is increased to increase the amplitude of the sweep motion of the mirror. According to a third embodiment, the sweep amplitude may be maintained by adjusting both the drive signal amplitude and the drive signal frequency.

Abstract translation: 一种用于维持包括由高速驱动信号驱动的高Q谐振反射镜的反射镜系统的振荡幅度的方法。 传感器监视高Q谐振反射镜的扫描幅度，并调整驱动信号的参数以将反射镜的扫描幅度保持在恒定值。 根据一个实施例，调节驱动信号的频率以更紧密地跟踪反射镜的谐振频率，并且根据另一实施例，增加驱动信号的幅度以增加反射镜的扫描运动的幅度。 根据第三实施例，可以通过调节驱动信号幅度和驱动信号频率来维持扫描振幅。

公开(公告)号：US20030151775A1

公开(公告)日：2003-08-14

申请号：US10224634

申请日：2002-08-20

Applicant: Aetas Technology Inc.

Inventor： Bobo Wang ,  Sheng-Jenq Chang ,  Chun-Chiang Chen

IPC: G06F015/00 ,  B41B001/00 ,  H04N001/29

CPC classification number: G03G15/755 ,  G03G2215/0016 ,  H04N1/047 ,  H04N1/12 ,  H04N2201/02425 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04731 ,  H04N2201/04756 ,  H04N2201/04791

Abstract: The present invention is directed to a method and system for tracking a photoconductor belt loop in an image forming apparatus that effectively monitors and compensates for changes in the OPC belt's speed and position as well as for possible contamination of the code strip and damage to the photo sensors. There is provided a method and system for sensing a code strip on the photoconductor belt loop with a first sensor, producing a first signal, sensing a code strip on the photoconductor belt loop with a second sensor, producing a second signal, computing a phase shift error between the first and second signals; and synchronizing first and second signals.

Abstract translation: 本发明涉及一种用于跟踪成像设备中的感光体带环的方法和系统，其有效地监测和补偿OPC带的速度和位置的变化以及可能的编码条的污染和对照片的损坏 传感器。 提供了一种利用第一传感器感测感光带环上的码带的方法和系统，产生第一信号，用第二传感器感测感光带环上的码带，产生第二信号，计算相移 第一和第二信号之间的误差; 并且同步第一和第二信号。

公开(公告)号：US06529643B1

公开(公告)日：2003-03-04

申请号：US09217224

申请日：1998-12-21

Applicant: Robert P. Loce ,  Martin E. Banton ,  Steven J. Harrington

Inventor： Robert P. Loce ,  Martin E. Banton ,  Steven J. Harrington

IPC: G06K932

CPC classification number: H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: A system for generating a warped contone image that compensates for beam scan trajectory distortions. The system includes an image buffer for storing a portion of a received contone image. An interpolation coefficient generator provides interpolation coefficients associated with a warped pixel within the warped contone image in response to an input identifying the warped pixel. A pixel interpolator is coupled to the image buffer and the interpolation coefficient generator and provides an output signal that identifies the warped pixel within the warped contone image. The pixel interpolator further retrieves pixels from the contone image stored in the image buffer using the interpolation coefficients and generates the warped pixel by combining the retrieved pixels into a single pixel value.

Abstract translation: 用于产生补偿光束扫描轨迹失真的翘曲连续色调图像的系统。 该系统包括用于存储接收的连续色调图像的一部分的图像缓冲器。 内插系数发生器响应于识别扭曲像素的输入，提供与翘曲连续色调图像内的翘曲像素相关联的内插系数。 像素内插器耦合到图像缓冲器和内插系数发生器，并提供识别翘曲的连续色调图像内的翘曲像素的输出信号。 像素内插器还使用内插系数从存储在图像缓冲器中的连续色图像中检索像素，并通过将检索到的像素组合成单个像素值来生成翘曲像素。

公开(公告)号：US20020080336A1

公开(公告)日：2002-06-27

申请号：US09491199

申请日：2000-01-25

Inventor： Takashi Kamada ,  Koji Washio

IPC: G03B027/68

CPC classification number: H04N1/047 ,  H04N1/1013 ,  H04N1/387 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/04703 ,  H04N2201/04717 ,  H04N2201/04732 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: An image reading apparatus includes: a document holder on which a document is placed; a document positioning member, wherein the document is positioned on the document holder according to the document positioning member; an image reading device for reading an image of the document positioned on the document holder; and a correcting device for correcting an inclination of the image read by the image reading device according to an inclination of the document positioning member. The inclination of the document positioning member is an inclination on the document holder for a primary scanning direction.

Abstract translation: 图像读取装置包括：放置文件的文件夹; 文件定位构件，其中所述文件根据文档定位构件定位在文件夹上; 用于读取位于文件夹上的文件的图像的图像读取装置; 以及校正装置，用于根据文件定位构件的倾斜度来校正由图像读取装置读取的图像的倾斜度。 原稿定位构件的倾斜度是原稿保持器在主扫描方向上的倾斜度。

公开(公告)号：US06301022B1

公开(公告)日：2001-10-09

申请号：US09049846

申请日：1998-03-27

Applicant: Koji Washio ,  Yoshiyuki Ichihara

Inventor： Koji Washio ,  Yoshiyuki Ichihara

IPC: H04N104

CPC classification number: H04N1/00721 ,  H04N1/00681 ,  H04N1/00734 ,  H04N1/00745 ,  H04N1/00748 ,  H04N1/00753 ,  H04N1/00758 ,  H04N1/00766 ,  H04N1/047 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04737 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: A correction method of a document inclination angle includes the steps of: first detecting an edge of a document; second detecting an inclination amount of the document corresponding to an inclination angle according to a detected result of the edge of the document. The inclination angle represents an inclination angle of the edge of the document with respect to a first reference direction and a second reference direction perpendicular to the first reference direction. The correction method further includes correcting the inclination angle of image data of the document with respect to the first and second reference directions. The step of the correcting includes a shift processing conducting a first shift processing in which the image data are shifted to one of the first and second reference directions according to the inclination amount and conducting a second shift processing in which the image data are shifted to the other of the first and second reference directions according to the inclination amount.

Abstract translation: 文件倾斜角的校正方法包括以下步骤：首先检测文档的边缘; 根据检测到的文档边缘的结果，二次检测与倾斜角对应的文档的倾斜量。 倾斜角度表示文件的边缘相对于第一参考方向和垂直于第一参考方向的第二参考方向的倾斜角度。 校正方法还包括相对于第一和第二参考方向校正文档的图像数据的倾斜角度。 校正的步骤包括进行第一移位处理的移位处理，其中图像数据根据倾斜量移位到第一和第二参考方向中的一个，并进行其中图像数据移位到第二移位处理 根据倾斜量的第一和第二参考方向中的另一个。

公开(公告)号：US06249360B1

公开(公告)日：2001-06-19

申请号：US09042987

申请日：1998-03-17

Applicant: Stephen Bernard Pollard ,  Richard Oliver Kahn

Inventor： Stephen Bernard Pollard ,  Richard Oliver Kahn

IPC: H04N1024

CPC classification number: H04N1/047 ,  H04N1/107 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/03162 ,  H04N2201/0414 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04737 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: The present invention relates to a method of reconstructing an image from data captured by a sensor, and is particularly applicable to the case of sequential capture in relative movement between a scanning device and the original image. The seanning device comprises navigation means for detecting the position of the sensor relative to the original image. A pixel grid for the reconstructed image is determined, and correspondence between the pixel grid and the sensor data is identified using sensor position detection data. The intensity of pixels is determined from sensor data selected as relevant to the pixel under consideration.

Abstract translation: 本发明涉及一种由传感器捕获的数据重建图像的方法，特别适用于在扫描装置与原始图像之间的相对运动中顺序捕获的情况。 扫掠装置包括用于检测传感器相对于原始图像的位置的导航装置。 确定重建图像的像素网格，并使用传感器位置检测数据来识别像素网格和传感器数据之间的对应关系。 从与所考虑的像素相关的传感器数据确定像素的强度。

公开(公告)号：US06195475B1

公开(公告)日：2001-02-27

申请号：US09153639

申请日：1998-09-15

Applicant: Raymond G. Beausoleil, Jr. ,  Ross R. Allen

Inventor： Raymond G. Beausoleil, Jr. ,  Ross R. Allen

IPC: G06K920

CPC classification number: H04N1/047 ,  H04N1/107 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/04712 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04737 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: A method and apparatus are provided for efficiently obtaining navigational position of a sensor array based on a correlation between images captured by the sensor array at successive points in time. This is achieved by first acquiring a reference frame through said sensor array, successively acquiring a sample frame through said sensor array. Correlation data representing a relationship between the sample frame and the reference frame is then generated and a displacement of a reference feature contained in both the reference frame and the sample frame is determined based on the correlation data. The correlation surface of the correlation data is modeled as a general two-dimensional Taylor series expansion. The method and apparatus of the present invention can be advantageously employed in a scanning device to provide efficient scheme for obtaining navigational information based on a comparison of image frames captured by a sensor array of the scanning device at successive points in time.

Abstract translation: 提供了一种基于传感器阵列在连续时间点捕获的图像之间的相关性来有效地获得传感器阵列的导航位置的方法和装置。 这是通过首先通过所述传感器阵列获取参考帧，通过所述传感器阵列连续获取采样帧来实现的。 然后生成表示采样帧和参考帧之间的关系的相关数据，并且基于相关数据确定包含在参考帧和采样帧中的参考特征的位移。 相关数据的相关表面被建模为一般的二维泰勒级数展开。 本发明的方法和装置可以有利地用于扫描装置中，以提供基于在连续时间点上由扫描装置的传感器阵列捕获的图像帧的比较来获得导航信息的有效方案。

公开(公告)号：US5357098A

公开(公告)日：1994-10-18

申请号：US81156

申请日：1993-06-25

Applicant: Hans M. Van Gent

Inventor： Hans M. Van Gent

IPC: B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  H04N1/028 ,  H04N1/031 ,  H04N5/225 ,  H04N5/335 ,  H01J40/14

CPC classification number: H04N1/1934 ,  H04N1/031 ,  H04N5/2253 ,  H04N2201/02406 ,  H04N2201/0241 ,  H04N2201/02425 ,  H04N2201/02429

Abstract: A scanning head is provided suitable for scanning large-size documents including a plurality of contact type CCDs staggered on a common substrate with overlapping end portions, so that their sensitivity ranges are adjoined to one another, adjacent ends of two CCDs being fixed on the substrate by stops, and the opposite ends of these CCDs being elastically supported to allow for thermal expansion or contraction, there being interposed between the first CCD and the third CCD, a spacer which has a thermal expansion coefficient comparable to that of the CCDs, so that the sensitivity ranges of the second and third CCDs are matched to one another, irrespective of the expansion or contraction of the second CCD.

Abstract translation: 提供扫描头，适用于扫描大尺寸文件，包括多个接触型CCD，它们在具有重叠端部的公共基板上交错布置，使得它们的灵敏度范围彼此相邻，两个CCD的相邻端固定在基板上 并且这些CCD的相对端被弹性支撑以允许热膨胀或收缩，其中插入在第一CCD和第三CCD之间，间隔件具有与CCD的热膨胀系数相当的热膨胀系数，使得 第二CCD和第三CCD的灵敏度范围彼此匹配，而与第二CCD的扩展或收缩无关。

公开(公告)号：US5307090A

公开(公告)日：1994-04-26

申请号：US77656591

申请日：1991-10-15

Applicant: POLAROID CORP

Inventor： SULLIVAN PAUL F

IPC: B41J2/44 ,  G01B11/27 ,  G02B26/10 ,  G02B27/00 ,  H04N1/047 ,  H04N1/10 ,  H04N1/113 ,  H04N1/12 ,  G01D9/42

CPC classification number: G01B11/272 ,  H04N1/047 ,  H04N1/1008 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02416 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/04712 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04746 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: In an electronic image printing apparatus of the type in which a light sensitive image recording layer (53) is exposed by a light beam (60,60',60''), an apparatus (57,92,154) is provided for determining and controlling the position of the light beam (60,60',60'') which comprises one or two alternating pluralities of diffraction grating patterns (4,6,8;18,20,22) disposed in a corresponding relationship with at least a portion of the light sensitive image recording layer (53) to produce a diffraction grid (52) which when irradiated by the light beam (60,60',60'') provides a diffracted beam which is representative of the position of the light beam on the diffraction grid (52). The position of the diffracted beam is detected to provide the requisite signal for controlling the position of the light beam (60,60',60'').