公开(公告)号：US5883731A

公开(公告)日：1999-03-16

申请号：US781596

申请日：1997-01-09

Applicant: Toshio Kasai

Inventor： Toshio Kasai

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/191 ,  G02B26/08

CPC classification number: H04N1/053 ,  G02B26/123 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/0471 ,  H04N2201/04786

Abstract: Disclosed is a multi-beam laser scanning device which scans a surface to be scanned with a plurality of laser beams in accordance with an image data. Each image data includes driving pulses which periodically occur in each image data, and are representative of intensity of laser beams. Phase of the image signals are shifter with each other so that the driving pulses do not overlap within a period of the driving pulses.

Abstract translation: 公开了一种多光束激光扫描装置，其根据图像数据用多个激光束扫描要扫描的表面。 每个图像数据包括周期性地出现在每个图像数据中的驱动脉冲，并且代表激光束的强度。 图像信号的相位彼此移动，使得驱动脉冲在驱动脉冲的周期内不重叠。

公开(公告)号：US5808658A

公开(公告)日：1998-09-15

申请号：US829269

申请日：1997-03-31

Applicant: Martin E. Hoover

Inventor： Martin E. Hoover

IPC: H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  B41J2/47

CPC classification number: H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04755

Abstract: An imaging system for forming multiple superimposed image exposure frames on a photoconductive member moving in a process direction including a rotating polygon having a plurality of facets. A raster output scanner forms a plurality of scanlines in a transverse direction across the photoconductive member by reflecting modulated beams from the rotating polygon. A method of providing scanning speed and phase shift control by providing a signal representing image exposure frame registration and a start of scan (SOS) signal representing the beginning of a scanline. The relative phase between the start of scan signal and the signal representing image exposure frame registration is determined and converted into a digital signal along with a speed determination signal by use of a fast clock timer. The digital signals are summed and inverted in polarity in order to change the speed of the rotating polygon to synchronize the signal representing image exposure frame registration with the SOS signal.

Abstract translation: 一种用于在包括具有多个面的旋转多边形的处理方向上移动的感光体上形成多个叠加的图像曝光框的成像系统。 栅格输出扫描器通过反射来自旋转多边形的调制光束在横跨光束元件的横向上形成多条扫描线。 通过提供表示图像曝光帧配准的信号和表示扫描线的开始的扫描开始（SOS）信号来提供扫描速度和相移控制的方法。 通过使用快速时钟定时器，确定扫描信号的开始和表示图像曝光帧配准的信号之间的相对相位，并将其与速度确定信号一起转换为数字信号。 数字信号的极性相加和反转，以便改变旋转多边形的速度，以将表示图像曝光帧配准的信号与SOS信号同步。

公开(公告)号：US5790164A

公开(公告)日：1998-08-04

申请号：US535463

申请日：1995-09-28

Applicant: Yasushi Kamo

Inventor： Yasushi Kamo

IPC: B41J29/38 ,  B41J2/385 ,  G06T1/60 ,  H04N1/00 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12

CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04767

Abstract: A method and apparatus which writes image information into a memory and reads the image information out of the memory using different synchronizing signals. A first synchronizing signal which is used to write scanned image data into the memory is generated to have a predetermined regularity, for example using a clock signal. The second synchronizing signal is based on an output of a photosensor which detects laser light reflecting off a polygonal mirror and is based on the rotating speed of the motor. The image information in the memory is read out in synchronism with the writing of the image information by the laser beam and polygonal mirror onto the photoconductive element using the second synchronizing signal. Therefore, it is not necessary for the polygonal mirror and the motor driving the polygonal mirror to be at a predetermined stable speed during the scanning operation.

Abstract translation: 将图像信息写入存储器并使用不同的同步信号从存储器读出图像信息的方法和装置。 生成用于将扫描图像数据写入存储器的第一同步信号，例如使用时钟信号，具有预定的规律性。 第二同步信号基于检测从多面镜反射的激光的光传感器的输出，并且基于电动机的转速。 与使用第二同步信号的激光束和多面镜将图像信息写入光电元件的同步读出存储器中的图像信息。 因此，在扫描操作期间，多角镜和驱动多角镜的电动机不必处于预定的稳定速度。

公开(公告)号：US5726776A

公开(公告)日：1998-03-10

申请号：US578560

申请日：1996-02-02

Applicant: Michael Auer ,  Hans-Peter Grossmann ,  Joachim Ihlefeld ,  Michael Pester ,  Gunther Uhlig ,  Lutz Wenert

Inventor： Michael Auer ,  Hans-Peter Grossmann ,  Joachim Ihlefeld ,  Michael Pester ,  Gunther Uhlig ,  Lutz Wenert

IPC: H04N1/19 ,  H04N1/047 ,  H04N1/12 ,  H04N1/193 ,  H04N1/04 ,  H04N1/23 ,  H04N1/36

CPC classification number: H04N1/0473 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/0471 ,  H04N2201/04786

Abstract: The invention relates to a method and to an arrangement for the synchronization of the image recording of monochrome recordings and color recordings with photosensitive line sensors. A line-scanning pattern is generated by a programmable counter arrangement, wherein the timer measures the phase position of the line-scanning pattern, generated by the counter arrangement, with the aid of the computer and the programmable counter arrangement at the point in time of the impinging of a pulse of the incremental transmitter, wherein the timer compares these with a coordinated calculated or tabulated reference value, and wherein the timer employs the thus obtained phase difference in order to influence a counter, preconnected to the line counter CT2, in its count volume (FIGS. 1 and 2). The timer splits the measurement lines of the image recording device into two or more scanning lines if the integration time of the photosensitive lines within the measurement line results in an exposure higher than the operating limit of the sensors.

Abstract translation: PCT No.PCT / DE94 / 00725 Sec。 371日期1996年2月22日 102（e）日期1996年2月22日PCT提交1994年6月27日PCT公布。 公开号WO95 / 01042 日期1995年1月5日本发明涉及一种用于与感光线传感器同步单色记录和彩色记录的图像记录方法和装置。 行扫描图案由可编程计数器装置产生，其中定时器借助于计算机和可编程计数器装置来测量由计数器装置产生的行扫描图案的相位位置，在时间点 冲击增量发射机的脉冲，其中定时器将这些与协调的计算或列表参考值进行比较，并且其中定时器采用如此获得的相位差，以便影响预先连接到线计数器CT2的计数器 计数体积（图1和图2）。 如果感测线在测量线内的积分时间导致曝光高于传感器的操作极限，则定时器将图像记录装置的测量线分解成两条或更多条扫描线。

公开(公告)号：US5677726A

公开(公告)日：1997-10-14

申请号：US446408

申请日：1995-05-22

Applicant: Takanobu Fuse

Inventor： Takanobu Fuse

IPC: G03B27/50 ,  B41J2/47 ,  G02B26/10 ,  H04N1/04 ,  H04N1/047 ,  H04N1/10 ,  H04N1/193

CPC classification number: B41J2/471 ,  G02B26/10 ,  H04N1/0473 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/0471 ,  H04N2201/04755

Abstract: In an image reading apparatus, an optical unit goes out from a reference stop position, reads an image from a document, and returns to the reference stop position. A position sensor detects a position of the optical unit and output a trigger signal when the optical unit comes to a predetermined position. There is provided a frequency divider to divide a frequency of a pulse signal used to detect the rotations of a driving motor, a pulse width detector to detect the divided pulse width in response to the trigger signal, and a rectifier to rectify an braking amount applied onto the driving motor in accordance with the pulse width so that the optical unit is stopped at the reference stop position.

Abstract translation: 在图像读取装置中，光学单元从参考停止位置离开，从文档读取图像，并返回到基准停止位置。 当光学单元到达预定位置时，位置传感器检测光学单元的位置并输出触发信号。 提供了分频器，用于分频用于检测驱动电动机的旋转的脉冲信号的频率，脉冲宽度检测器，以响应于触发信号检测分频的脉冲宽度;以及整流器，对施加的制动量进行整流 按照脉冲宽度将驱动马达驱动到驱动马达上，使得光学单元停在基准停止位置。

公开(公告)号：US5671069A

公开(公告)日：1997-09-23

申请号：US417252

申请日：1995-04-05

Applicant: Kouichi Kodama

Inventor： Kouichi Kodama

IPC: B41J2/44 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/19 ,  H04N1/40 ,  H04N1/36 ,  H04N1/04

CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04774

Abstract: A pixel clock generator in which the frequency of a pixel clock signal is changed over for every scanning face prior to start of image record scanning, comprises a first scanning time detection circuit for detecting scanning period of time from the start of image scanning to the end of the image scanning; a reference clock signal generation circuit for generating a reference clock signal to make the frequency of the reference clock signal variable; a number-of-pixel-clocks setting circuit for setting the number of pixel clocks corresponding to forecast scanning time; a second scanning time detection circuit for counting the pixel clocks generated based the reference clock signal by the number set by the number-of-pixel-clocks setting circuit to detect the scanning time corresponding to the forecast scanning time; a comparison circuit for comparing the time detected by the first scanning time detection circuit with the time detected by the second scanning time detection circuit to obtain a comparison result; a correction data storage circuit for storing data for correcting the second scanning time for every scanning face; a renewal circuit for renewing the correction data of the correction data storage circuit according to the result of the comparison result; and a correction circuit to perform variable control by correcting the frequency of the reference clock signal outputted from the reference clock signal generator according to the data renewed by the renewal circuit.

Abstract translation: 在图像记录扫描开始之前，对每个扫描面改变像素时钟信号的频率的像素时钟发生器包括：第一扫描时间检测电路，用于检测从图像扫描开始到结束的扫描时间段 的图像扫描; 参考时钟信号产生电路，用于产生参考时钟信号以使参考时钟信号的频率变化; 用于设置与预测扫描时间相对应的像素时钟数目的像素数时钟设置电路; 第二扫描时间检测电路，用于对由基准时钟信号产生的像素时钟进行计数，所述像素时钟由所述像素数时钟设置电路设置的数量进行计数，以检测对应于所述预测扫描时间的扫描时间; 比较电路，用于将由第一扫描时间检测电路检测的时间与由第二扫描时间检测电路检测的时间进行比较，以获得比较结果; 校正数据存储电路，用于存储用于校正每个扫描面的第二扫描时间的数据; 更新电路，用于根据比较结果的结果更新校正数据存储电路的校正数据; 以及校正电路，通过根据由更新电路更新的数据校正从基准时钟信号发生器输出的基准时钟信号的频率来执行可变控制。

公开(公告)号：US5634171A

公开(公告)日：1997-05-27

申请号：US412007

申请日：1995-03-28

Applicant: Hakaru Muto

Inventor： Hakaru Muto

IPC: B41J2/44 ,  G03G15/01 ,  G03G15/04 ,  G03G21/00 ,  G03G21/14 ,  G03G21/16 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H04N1/29 ,  H04N1/50

CPC classification number: G03G15/0152 ,  G03G15/0121 ,  G03G15/0163 ,  H04N1/0473 ,  H04N1/506 ,  G03G15/0173 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04756 ,  H04N2201/0476

Abstract: An image recording apparatus includes a rotationally driven image carrier; a position signal output device for outputting a position signal indicating that the image carrier is at a predetermined rotational position; a scanning device for scanning a photosensitive drum with a light beam which is modulated in accordance with the image signal; a beam detection signal generating device for generating a beam detection signal upon detection of the light beam at a predetermined position, so as to regulate the timing of the light beam modulation by the image signal for each line of scan; an image transferring/superposing device for successively transferring and superposing on the image carrier a plurality of color image components which are successively formed on the photosensitive drum based on the image signals which are input in response to the position signals for formation of respective color image components; a measuring device for measuring the time difference between the position signal and the detection signal for each color image component, and a control device for controlling at least the rotation of the image carrier based on the time difference measured by the measuring device.

Abstract translation: 图像记录装置包括旋转驱动图像载体; 位置信号输出装置，用于输出指示图像载体处于预定旋转位置的位置信号; 用于根据图像信号调制的光束扫描感光鼓的扫描装置; 光束检测信号发生装置，用于在预定位置检测到光束时产生光束检测信号，以便通过每行扫描的图像信号来调节光束调制的定时; 图像传送/重叠装置，用于基于响应于用于形成各个彩色图像分量的位置信号而输入的图像信号，在图像载体上依次传送和叠加多个依次形成在感光鼓上的彩色图像分量 ; 用于测量每个彩色图像分量的位置信号和检测信号之间的时间差的测量装置，以及用于基于由测量装置测量的时间差至少控制图像载体的旋转的控制装置。

公开(公告)号：US5631691A

公开(公告)日：1997-05-20

申请号：US5564

申请日：1993-01-19

Applicant: Hideya Furuta ,  Yoshihiro Sakai ,  Kazushige Taguchi ,  Mitsuru Mamizuka

Inventor： Hideya Furuta ,  Yoshihiro Sakai ,  Kazushige Taguchi ,  Mitsuru Mamizuka

IPC: B41J2/435 ,  G03G15/01 ,  H04N1/047 ,  H04N1/113 ,  H04N1/193 ,  H04N1/32 ,  H04N1/50 ,  B41J2/385 ,  B41J2/47 ,  G03G13/04

CPC classification number: H04N1/0473 ,  B41J2/435 ,  G03G15/0131 ,  H04N1/32 ,  H04N1/508 ,  G03G2215/0174 ,  H04N1/1135 ,  H04N1/193 ,  H04N2201/0471 ,  H04N2201/04756

Abstract: An image forming apparatus has an image scanner, a sensor for determining that the image sensor has scanned the front edge of a document, and a controller using main scanning line synchronizing signals and an output signal of the sensor as reference signals. In response to the reference signals, the controller causes at least a writing unit to start writing each image data of particular color and causes a transfer medium driving circuit to start driving a transfer medium. The apparatus allows image components of different colors to be transferred to the transfer medium one above the other in accurate registration.

Abstract translation: 图像形成装置具有图像扫描器，用于确定图像传感器已经扫描原稿的前边缘的传感器，以及使用主扫描线同步信号和传感器的输出信号作为参考信号的控制器。 响应于参考信号，控制器使至少一个写入单元开始写入特定颜色的每个图像数据，并使转印介质驱动电路开始驱动转印介质。 该装置允许不同颜色的图像分量以准确的配准传输到另一种之上。

公开(公告)号：US5625183A

公开(公告)日：1997-04-29

申请号：US490572

申请日：1995-06-15

Applicant: Atsushi Kashitani ,  Satoshi Segawa

Inventor： Atsushi Kashitani ,  Satoshi Segawa

IPC: H04N1/047 ,  H04N1/113 ,  H04N1/193 ,  H04N1/04 ,  G03B3/00

CPC classification number: H04N1/0473 ,  H04N1/113 ,  H04N1/193 ,  H04N2201/0436 ,  H04N2201/0471 ,  H04N2201/04755

Abstract: In a scanner unit for An overhead image scanner, a rotatably mounted mirror reflects light from a surface to be scanned off to a focusing lens to form an optical image of a scanned line on a linear image sensor. An extension arm is connected to the minor for rotation therewith. To one end of the arm is attached an electromagnetic drive system and to the other end a light reflecting member which is formed with a multiplicity of microscopically spaced apart tracks running parallel to the length of the extension arm. A laser beam spot is formed on the reflecting member and a photodiode array detects reflections therefrom to produce a plurality of output signals representative of the amounts of reflections incident on different areas of the array. The outputs of the photodiode array are processed to produce a tracking error pulse when the minor is rotated by a predetermined amount of arc and a control current is supplied to the electromagnetic drive system so that the mirror is driven at a substantially constant speed. The tracking error pulse is supplied to the linear image sensor to cause the optical image of the scanned line to be converted to an electrical signal.

Abstract translation: 在顶置图像扫描仪的扫描仪单元中，可旋转地安装的镜将来自要扫描的表面的光反射到聚焦透镜，以在线性图像传感器上形成扫描线的光学图像。 延伸臂与未成型机连接以与其一起旋转。 臂的一端安装有电磁驱动系统，另一端安装有光反射构件，该反射构件形成有平行于延伸臂的长度延伸的多个微观间隔开的轨道。 激光束点形成在反射构件上，并且光电二极管阵列检测其反射，以产生表示入射在阵列的不同区域上的反射量的多个输出信号。 处理光电二极管阵列的输出以产生跟踪误差脉冲，当小灯旋转预定量的电弧时，控制电流被提供给电磁驱动系统，使得反射镜以基本恒定的速度被驱动。 将跟踪误差脉冲提供给线性图像传感器，以将扫描线的光学图像转换成电信号。

公开(公告)号：US5619599A

公开(公告)日：1997-04-08

申请号：US439841

申请日：1995-05-12

Applicant: James M. Wilson ,  Girmay K. Girmay

Inventor： James M. Wilson ,  Girmay K. Girmay

IPC: G02B6/00 ,  G02B6/04 ,  H04N1/047

CPC classification number: H04N1/047 ,  G02B26/103 ,  G02B2006/0098 ,  G02B6/0001 ,  H04N2201/0471

Abstract: A remote split scan detector is disclosed which utilizes two rectangular cross section light pipes to transfer the light beam from a raster output scanner (ROS) housing onto two light sensors outside of the housing. Each one of the light pipes is designed to receive a light beam at its input end and transfer the light beam to an output end where the light beam exits the light pipe through a diffused portion of a side wall. Two sensors are placed in such a manner that each faces one diffused surface to receive the light beam exiting the diffused surface.

Abstract translation: 公开了一种远程分割扫描检测器，其利用两个矩形截面光管将光束从光栅输出扫描器（ROS）壳体传送到壳体外部的两个光传感器。 每个光管被设计成在其输入端处接收光束并将光束传递到光束通过侧壁的扩散部分离开光管的输出端。 两个传感器以这样的方式放置，即每个传感器面对一个扩散表面以接收离开扩散表面的光束。