公开(公告)号：US06879415B2

公开(公告)日：2005-04-12

申请号：US09773584

申请日：2001-02-02

Applicant: Yuichi Kurosawa

Inventor： Yuichi Kurosawa

IPC: G03B27/46 ,  G06T1/00 ,  H02P8/22 ,  H04N1/00 ,  H04N1/04 ,  H04N1/10 ,  H04N1/17 ,  H04N1/193 ,  H04N5/253 ,  H04M1/04

CPC classification number: H04N1/0414 ,  H04N1/0402 ,  H04N1/0443 ,  H04N1/0455 ,  H04N1/10 ,  H04N1/1008 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/02416 ,  H04N2201/03108 ,  H04N2201/0408 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04791

Abstract: A film scanner performs a main-scan of a film by an imaging device and performs a sub-scan of the imaging device so as to enable scanning at any resolution using a simple configuration. The scanning mechanism, for the sub-scan of the film with respect to the imaging device, has a transport table for supporting the film held by a film holder and transporting it in a sub-scan direction and a transport mechanism for moving the transport table in the sub-scan direction. The source of the drive power of the transport mechanism is a scan motor (stepper motor) driven by a pulse signal output from a motor drive circuit. The motor drive circuit is configured to enable micro-stepping of the scan motor.

Abstract translation: 胶片扫描仪通过成像装置执行胶片的主扫描并执行成像装置的副扫描，以便能够以任何分辨率使用简单的配置进行扫描。 用于相对于成像装置的薄膜副扫描的扫描机构具有用于支撑由胶片保持器保持并且沿副扫描方向传送的胶片的传送台和用于移动传送台的传送机构 在副扫描方向。 传送机构的驱动力的来源是由从电动机驱动电路输出的脉冲信号驱动的扫描电动机（步进电动机）。 电动机驱动电路构成为能够进行扫描电动机的微步进。

公开(公告)号：US06816178B2

公开(公告)日：2004-11-09

申请号：US10214742

申请日：2002-08-09

Applicant: Yasufumi Yamada ,  Mitsuru Takahashi ,  Takuroh Kamiya ,  Mikio Kamoshita ,  Koichi Kudo

Inventor： Yasufumi Yamada ,  Mitsuru Takahashi ,  Takuroh Kamiya ,  Mikio Kamoshita ,  Koichi Kudo

IPC: B41J2385

CPC classification number: H04N1/506 ,  G03G15/0121 ,  G03G15/0173 ,  G03G2215/0158 ,  G03G2215/0177 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04756 ,  H04N2201/04772 ,  H04N2201/04791

Abstract: An image forming apparatus including a drum, an optical scanning mechanism, a development mechanism, an intermediate transfer member, movement detecting mechanisms, and a controller. The intermediate transfer member is rotated in synchronism with a rotation of the drum and receives color toner image multiple times to form thereon a composite color toner image including multiple images of different color toners overlaying one to another. The movement detecting mechanisms detect respective movements of the drum and the intermediate transfer member. The controller controls respective rotations of the drum and the intermediate transfer member with results of respective detection performed by the movement detecting mechanisms.

公开(公告)号：US20040179217A1

公开(公告)日：2004-09-16

申请号：US10389576

申请日：2003-03-14

Inventor： Alexander L. Chapman ,  David G. King ,  Patrick L. Kroger ,  Michael A. Marra III ,  Randall D. Mayo ,  Barry B. Stout

IPC: G06F015/00 ,  H04N001/46

CPC classification number: H04N1/128 ,  B41J11/46 ,  H04N1/0473 ,  H04N1/12 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04717 ,  H04N2201/04725 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: Methods and systems for calibrating media indexing errors in a printing device are provided. In one embodiment, the method comprises feeding a calibration media through a printing device, sensing the position of the media as it moves through the printing device, sensing positions of a media indexing component as the media moves through the printing device, determining media indexing position errors based upon the sensed positions, and calculating a compensation factor to be applied based upon the errors. In some embodiments, parameters of a line and/or other function are determined from the error data and the parameters are utilized to calculate a compensation factor. Moreover, in some embodiments, it is determined what range the data fits within, and a predetermined compensation factor is determined based upon the range.

Abstract translation: 提供了用于校准印刷装置中的介质分度误差的方法和系统。 在一个实施例中，所述方法包括通过打印装置馈送校准介质，当介质移动通过打印装置时感测介质的位置，当介质移动通过打印装置时检测介质索引部件的位置，确定介质索引位置 基于感测到的位置的误差，以及基于误差计算要应用的补偿因子。 在一些实施例中，从误差数据确定线和/或其他功能的参数，并且使用参数来计算补偿因子。 此外，在一些实施例中，确定数据适合的范围，并且基于该范围确定预定的补偿因子。

公开(公告)号：US20040084529A1

公开(公告)日：2004-05-06

申请号：US10625664

申请日：2003-07-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshito Haba

IPC: G06K007/10 ,  G06K007/14

CPC classification number: H04N1/00241 ,  H04N1/00236 ,  H04N1/3263 ,  H04N1/32683 ,  H04N2201/0015 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/04756 ,  H04N2201/04791 ,  H04N2201/04794 ,  H04N2201/329

Abstract: An image reading apparatus prevents degradation of image quality and a delay in the image reading time which are caused by interruption of reading of image data. A speed at which a host computer reads image-data from an image reading apparatus and temporarily stores it therein is examined. If the resulting speed is lower than a reference value which has been set so that an operation to avoid an overflow of a buffer RAM in the image reading apparatus may not be caused, the sub-scanning speed of the image reading apparatus is set lower, and the image is read at the lower speed.

Abstract translation: 图像读取装置防止由图像数据的读取中断引起的图像质量的劣化和图像读取时间的延迟。 检查主计算机从图像读取装置读取图像数据并暂时存储在其中的速度。 如果所得到的速度低于已被设置为使得可能不会引起避免图像读取装置中的缓冲RAM溢出的操作的参考值，则将图像读取装置的副扫描速度设置得较低， 并以较低的速度读取图像。

公开(公告)号：US06648226B2

公开(公告)日：2003-11-18

申请号：US09938572

申请日：2001-08-27

Applicant: Yoshito Haba

Inventor： Yoshito Haba

IPC: G06K710

CPC classification number: H04N1/00241 ,  H04N1/00236 ,  H04N1/3263 ,  H04N1/32683 ,  H04N2201/0015 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/04756 ,  H04N2201/04791 ,  H04N2201/04794 ,  H04N2201/329

Abstract: An image reading apparatus prevents degradation of image quality and a delay in the image reading time which are caused by interruption of reading of image data. A speed at which a host computer reads image data from an image reading apparatus and temporarily stores it therein is examined. If the resulting speed is lower than a reference value which has been set so that an operation to avoid an overflow of a buffer RAM in the image reading apparatus may not be caused, the sub-scanning speed of the image reading apparatus is set lower, and the image is read at the lower speed.

公开(公告)号：US20030043256A1

公开(公告)日：2003-03-06

申请号：US09682379

申请日：2001-08-27

Inventor： Brian R. Conrow ,  David M. Kerxhalli

IPC: B41J002/435

CPC classification number: H04N1/4095 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/00092 ,  H04N1/047 ,  H04N1/12 ,  H04N2201/03108 ,  H04N2201/04717 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04756 ,  H04N2201/04768 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: The relationship between first and second side images is evaluated to determine how the position of the paper and/or the size and arrangement of an image can be manipulated to compensate for paper shrinkage caused by fusing. Show through is reduced by performing setup to adjust a pixel clock frequency and/or a photoreceptor speed, determining a residual magnification error, determining margin shifts to compensate for the residual magnification error, and applying the margin shifts. Paper shrink effects on registration can be compensated for using determinations made during a typical printer setup. Show through errors can be reduced without using a paper conditioner to pre-shrink or re-wet the paper. In simplex and duplex printing, the show through errors worsen as the image moves away from the registration edge. Using information obtained during setup, a margin shift is determined that results in a significant reduction in the maximum show through for each image.

公开(公告)号：US20020080420A1

公开(公告)日：2002-06-27

申请号：US09964577

申请日：2001-09-28

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Atsushi Yokochi

IPC: H04N001/40

CPC classification number: H04N1/047 ,  H04N2201/03108 ,  H04N2201/04725 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04756 ,  H04N2201/04786 ,  H04N2201/04791

Abstract: The invention provides an image reading apparatus that produces a precise image of an original document to prevent the read image from having distortion or irregular density, by driving a DC motor, which drives an image reading unit in a scanning direction, at a constant speed suitable for a document to be read. In addition, the image reading apparatus prevents position errors or misalignment at the start of the image reading, or at a restart of the image reading after the image reading is paused. A speed control circuit provides feedback to a DC motor to synchronize a time interval detected by a pulse interval detecting circuit with a time interval set by an interval setting register, so that the DC motor is operated at a constant speed. A counter counts the number of signals output from an encoder. After the speed of the DC motor is stabilized, a timing of signals output from a CCD drive unit to the image reading unit is synchronized with a timing of the signals generated by the encoder. As a count in the counter reaches a predetermined number, an actual image reading is started. Thus, the position errors or misalignment are prevented in the produced image.

Abstract translation: 本发明提供了一种图像读取装置，其通过以恒定速度驱动沿扫描方向驱动图像读取单元的DC马达，产生原始文档的精确图像，以防止读取图像具有失真或不规则的浓度 要阅读的文件。 此外，图像读取装置防止在图像读取开始时的位置错误或未对准，或者在图像读取暂停之后重新启动图像读取。 速度控制电路向DC电动机提供反馈以使由脉冲间隔检测电路检测的时间间隔与由间隔设置寄存器设置的时间间隔同步，使得DC电动机以恒定速度运行。 计数器对从编码器输出的信号数进行计数。 在DC电机的速度稳定后，从CCD驱动单元输出到图像读取单元的信号的定时与由编码器产生的信号的定时同步。 当计数器中的计数达到预定数量时，开始实际的图像读取。 因此，在产生的图像中防止位置误差或未对准。

公开(公告)号：US20010012042A1

公开(公告)日：2001-08-09

申请号：US09775829

申请日：2001-02-05

Inventor： Atsushi Suganuma

IPC: B41J002/435 ,  B41J002/47

CPC classification number: H04N1/0678 ,  B41J19/202 ,  H04N1/047 ,  H04N1/06 ,  H04N2201/02443 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04756 ,  H04N2201/04772 ,  H04N2201/04789 ,  H04N2201/04798

Abstract: An image is accurately recorded by a light beam on a PS plate wound on a drum which is rotating at a constant speed. A rotary encoder detects information of a recording position in a main scanning direction by the light beam that is emitted from an optical unit to the PS plate. Based on the detected information, a PLL circuit of a recording synchronizing signal generating unit generates an original clock. Pulses of the original clock are counted by a decimating counter, which outputs a decimating instruction to decimate a pulse from the original clock each time the count reaches a preset count. Based on the decimating instruction, a pulse is decimated from the original clock, and a decimated clock is frequency-divided at a fixed frequency-dividing ratio by a frequency divider, which outputs a pixel clock for recording the image. Since the frequency of the pixel clock is varied by decimating the original clock based on the preset count, the image can accurately be recorded on the PS plate by determining in advance the preset count depending on the positional relationship between the PS plate and the optical unit.

Abstract translation: 通过光束将图像精确地记录在缠绕在以恒定速度旋转的滚筒上的PS板上。 旋转编码器通过从光学单元发射到PS板的光束来检测在主扫描方向上的记录位置的信息。 基于检测到的信息，记录同步信号生成单元的PLL电路产生原始时钟。 原始时钟的脉冲由抽取计数器计数，该计数器在每次计数达到预设计数时输出抽取指令以从原始时钟抽取脉冲。 基于抽取指令，从原始时钟脉冲被抽取，并且抽取的时钟以分频器以固定的分频比进行分频，分频器输出用于记录图像的像素时钟。 由于通过基于预设计数来抽取原始时钟来改变像素时钟的频率，所以可以通过根据PS板和光学单元之间的位置关系预先确定预设计数来将图像准确地记录在PS板上 。

公开(公告)号：US6160630A

公开(公告)日：2000-12-12

申请号：US78567

申请日：1998-05-14

Applicant: Toshihiro Takayanagi

Inventor： Toshihiro Takayanagi

IPC: B65H5/00 ,  H02P8/00 ,  H04N1/04 ,  H04N1/047 ,  H04N1/12 ,  H04N1/193 ,  H04N1/21

CPC classification number: H04N1/047 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/03108 ,  H04N2201/04756 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04791

Abstract: An image reading apparatus for reading out images on an image carrying paper sheet is provided. The apparatus includes a motor for feeding the image carrying paper sheet. The motor is driven by a motor driving unit on the basis of motor controlling data. The image reading apparatus further includes a generator for generating the motor controlling data, a photoelectric converter for generating image signals corresponding to the images. The apparatus also includes a register for holding the motor controlling data from the motor controlling data generator. The motor controlling data held by the register are advantageously supplied to the motor driving unit after a predetermined delay time by way of a delay unit which includes a latch circuit for holding the motor controlling data from the register, and a counter associated with the latch circuit.

Abstract translation: 提供一种用于读取图像载体纸上的图像的图像读取装置。 该装置包括用于馈送图像传送纸张的马达。 基于电机控制数据，电机由电机驱动单元驱动。 图像读取装置还包括用于产生电机控制数据的发生器，用于产生对应于图像的图像信号的光电转换器。 该装置还包括用于保持来自马达控制数据发生器的马达控制数据的寄存器。 由寄存器保持的电动机控制数据有利地通过延迟单元在预定的延迟时间之后提供给电动机驱动单元，该延迟单元包括用于保持来自寄存器的电动机控制数据的锁存电路和与锁存电路相关联的计数器 。

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'').