公开(公告)号：US06806894B2

公开(公告)日：2004-10-19

申请号：US10631473

申请日：2003-07-31

Applicant: Yuichi Seki

Inventor： Yuichi Seki

IPC: B41J2385

CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04758 ,  H04N2201/04798

Abstract: There is provided an image forming apparatus that is capable of securing required printing quality by properly correcting a main scanning scale. In a pixel division modulating process, for each of one or more correction points (at l-th, m-th, and n-th pixels) on each of lines along which scanning is carried out on a photosensitive drum 11 by laser light, the final bit data of pixel-division-modulated pixel data of a pixel immediately preceding each correction point is added to the pixel data of a pixel located at the correction point as the leading bit data of the pixel-division-modulated pixel data of this pixel. The same processing as above is sequentially performed on pixel data of pixels located subsequently to the correction point to sequentially shift predetermined bit data of pixel data of pixels to pixel data of the respective following pixels, to thereby generate pixel data of a new pixel. The generated pixel data of the new pixel is outputted in synchronism with an image clock of a fixed frequency.

Abstract translation: 提供了一种图像形成装置，其能够通过适当地校正主扫描标尺来确保所需的打印质量。 在像素分割调制处理中，对于通过激光在感光鼓11上进行扫描的每条线上的一个或多个校正点（第1，第m和第n像素）中的每一个， 紧接在每个校正点之前的像素的像素分割调制像素数据的最终比特数据被添加到位于校正点的像素的像素数据，作为该像素分割调制像素数据的前导比特数据 像素。 对位于校正点后面的像素的像素数据顺序执行与上述相同的处理，以将像素的像素数据的预定位数据顺序地移位到各个跟随像素的像素数据，从而生成新像素的像素数据。 所生成的新像素的像素数据与固定频率的图像时钟同步输出。

公开(公告)号：US06700597B2

公开(公告)日：2004-03-02

申请号：US09987371

申请日：2001-11-14

Applicant: Takeshi Fujii

Inventor： Takeshi Fujii

IPC: B41J2435

CPC classification number: H04N1/047 ,  H04N1/06 ,  H04N1/195 ,  H04N2201/02425 ,  H04N2201/02441 ,  H04N2201/02443 ,  H04N2201/0426 ,  H04N2201/0471 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04762 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04796 ,  H04N2201/04798

Abstract: The image recording method and apparatus deflect light from a group of two-dimensionally disposed light source elements to move an image formed on a recording medium in accordance with a movement of the recording medium, or shift modulation data of the group of two-dimensionally disposed light source elements in a first moving direction of the recording medium on the group of two-dimensionally disposed light source elements in synchronism with the movement of the recording medium, and thereby have the image remain stationary relatively to the recording medium in the main scanning direction, as well as shift sequentially modulation data of the group of two-dimensionally disposed light source elements in a direction opposite to a second moving direction of the optical system in synchronism with a movement of the optical system in the auxiliary scanning direction, and thereby having the image also remain stationary relatively to the recording medium in the auxiliary scanning direction.

Abstract translation: 图像记录方法和装置使来自一组二维设置的光源元件的光偏转，以根据记录介质的移动移动形成在记录介质上的图像，或者二维设置的组的移位调制数据 记录介质的第一移动方向上的光源元件与二维布置的光源元件组同步地与记录介质的运动同步，从而使图像在主扫描方向上相对于记录介质保持静止 并且与辅助扫描方向上的光学系统的移动同步地沿着与光学系统的第二移动方向相反的方向顺序地移动二维设置的光源元件组的调制数据，从而具有 图像也在辅助扫描方向上相对于记录介质保持静止。

公开(公告)号：US20030118141A1

公开(公告)日：2003-06-26

申请号：US10024416

申请日：2001-12-21

Applicant: Xerox Corporation

Inventor： Michael B. Neary

IPC: H03D003/24

CPC classification number: H03L7/189 ,  H03L7/199 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04758 ,  H04N2201/04772 ,  H04N2201/04794 ,  H04N2201/04798

Abstract: A method for calibrating a VCO within a phase locked loop circuit is disclosed. First, a DAC output voltage is set to its minimum, and a counter M is adjusted until a comparator is its threshold voltage. Next, the DAC is set to another voltage, and counter M is again adjusted to the comparator threshold. This process is repeated for as many steps as desired. When the phase locked loop circuit requests an instantaneous frequency, an interpolation of the requested frequency against the curve created by the above-described method gives the value required by the DAC.

Abstract translation: 公开了一种在锁相环电路内校准VCO的方法。 首先，将DAC输出电压设置为最小值，并且调整计数器M直到比较器为其阈值电压。 接下来，将DAC设置为另一电压，并且将计数器M再次调整为比较器阈值。 根据需要重复这个步骤。 当锁相环电路请求瞬时频率时，根据上述方法产生的曲线对所请求频率的插值给出DAC需要的值。

公开(公告)号：US20030067533A1

公开(公告)日：2003-04-10

申请号：US10259769

申请日：2002-09-30

Inventor： Atsufumi Omori ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Yoshinori Hayashi

IPC: B41J002/435 ,  B41J027/00

CPC classification number: G02B26/122 ,  B41J2/471 ,  G06K15/1219 ,  H04N1/053 ,  H04N2201/02443 ,  H04N2201/04768 ,  H04N2201/04798

Abstract: A pixel clock generating apparatus comprises a data offset circuit and a pixel generator. The data offset circuit defines multiple data blocks, each data block consisting of a predetermined number of successive clocks, and produces phase data for each data block. The phase data represents an amount and a direction of phase shift to be carried out for a certain clock in each data block. The pixel generator receives the phase data from the data offset circuit and generates a phase-shifted pixel clock a predetermined number of times in each data block based on the phase data.

Abstract translation: 像素时钟产生装置包括数据偏移电路和像素发生器。 数据偏移电路定义多个数据块，每个数据块由预定数量的连续时钟组成，并产生每个数据块的相位数据。 相位数据表示对于每个数据块中的某个时钟执行的相移的量和方向。 像素生成器从数据偏移电路接收相位数据，并且基于相位数据在每个数据块中产生预定次数的相移像素时钟。

公开(公告)号：US20020135668A1

公开(公告)日：2002-09-26

申请号：US10093753

申请日：2002-03-08

Applicant: Konica Corporation

Inventor： Kouichi Takaki ,  Shinji Morita

IPC: B41J002/385 ,  B41J002/435 ,  B41J002/40 ,  B41J002/405 ,  G03G013/04

CPC classification number: H04N1/053 ,  G06K15/1219 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04774 ,  H04N2201/04798

Abstract: The invention concerns a clock-generating circuit, which generates dot clock pulses for driving a light-emitting element employed in an optical-writing section of an image-forming apparatus and has a function of canceling fnull property errors caused by a fnull lens employed in the image-forming apparatus. The clock-generating circuit includes a digital-delay dot clock adjusting section to adjust timings of rising-edges or falling-edges of the dot clock pulses generated by changing a selection for a plurality of delayed-clock pulses, which are generated by delaying clock-pulses, outputted from a reference oscillator, in slightly different delay times; and a controlling section to control a selecting operation for the plurality of delayed clock pulses, performed in the digital-delay dot clock adjusting section, so as to compensate for fnull property errors caused by the fnull lens employed in the optical-writing section.

Abstract translation: 本发明涉及一种时钟发生电路，其产生用于驱动图像形成装置的光学写入部分中使用的发光元件的点时钟脉冲，并且具有消除由在 图像形成装置。 时钟发生电路包括数字延迟点时钟调整部分，用于通过改变多个延迟时钟脉冲的选择来产生的点时钟脉冲的上升沿或下降沿的定时，这些延迟时钟脉冲是通过延迟时钟 从参考振荡器输出的脉冲在稍微不同的延迟时间内; 以及控制部分，用于控制在数字延迟点时钟调整部分中执行的多个延迟时钟脉冲的选择操作，以便补偿由光学写入部分中采用的晶片透镜引起的最佳属性误差。

公开(公告)号：US06448996B2

公开(公告)日：2002-09-10

申请号：US09775829

申请日：2001-02-05

Applicant: Atsushi Suganuma

Inventor： Atsushi Suganuma

IPC: B41J2435

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.

公开(公告)号：US20020093585A1

公开(公告)日：2002-07-18

申请号：US08848097

申请日：1997-04-28

Inventor： GUY LEMSTROM ,  MIKKO RISTOLAINEN

IPC: H04N005/225

CPC classification number: H04N1/00013 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/02409 ,  H04N1/03 ,  H04N5/2254 ,  H04N2201/02429 ,  H04N2201/02443 ,  H04N2201/04798

Abstract: The present invention relates to a method for adjusting a photodetector array, and a beam-splitting and detector structure for a line scan camera, which structure comprises a photodetector array which is protected by a casing (10) from at least the back, and adjusted to the focus plan of an objective and glued to the exit surface focus plane of an objective and glued to the exit surface of the beam-splitting prism (2) by means of a support and adjusting structure. According to the invention, the supporting and adjusting structure comprising a glue layer (6) arranged between edges (19) surrounding the photodetector array (1) in the casing (10) and the exit surface (4) of the beam-splitting prism.

Abstract translation: 本发明涉及一种用于调整光电检测器阵列的方法，以及用于线扫描照相机的分束和检测器结构，该结构包括光电检测器阵列，其被至少从后面的壳体（10）保护并被调整 到目标的聚焦方案，并粘合到物镜的出射表面聚焦平面上，并通过支撑和调节结构胶合到分束棱镜（2）的出射表面。 根据本发明，支撑和调节结构包括布置在壳体（10）中围绕光电检测器阵列（1）的边缘（19）和分束棱镜的出射表面（4）之间的胶层（6）。

公开(公告)号：US06373515B1

公开(公告)日：2002-04-16

申请号：US09635177

申请日：2000-08-09

Applicant: Robert D. Morrison

Inventor： Robert D. Morrison

IPC: B41J2435

CPC classification number: H04N1/053 ,  G06K15/1223 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02443 ,  H04N2201/04767 ,  H04N2201/04798

Abstract: A variable resolution transition placement circuit in an electrophotographic imaging device allows transitions to be placed within a stream of video data so that the pixel resolution achieved over a scan line is adjustable on a pixel by pixel basis using a system clock. Pixel data defines transition positions relative to a synthesized video clock defining pixel time periods. A converter converts positions of the transitions relative to the synthesized video clock to positions relative to the system clock using a value provided by a synthesized video clock to system clock transform generator. The value can change between synthesized video clock cycles to change the pixel resolution. A synthesized video generator generates values of a synthesized video clock relative to the system clock. Offset values generated from values of the synthesized video clock, the positions of the transitions relative to the system clock, and phase difference values from a phase measuring device are combined to determine the positions at which the transitions will be generated relative to the system clock. The values representing the positions at which the transitions will be generated are stored in a transition queue. The integer portions of these values are decremented on each system clock cycle. When the integer portions of these values reach zero, the fractional portion of these values (representing the position of transitions within system clock clock cycles) are provided to transition generation logic to generate transitions at the specified positions in system clock cycles.

Abstract translation: 电子照相成像装置中的可变分辨率转移放置电路允许将转变放置在视频数据流内，使得使用系统时钟逐像素地在扫描线上实现的像素分辨率是可调节的。 像素数据定义了相对于定义像素时间段的合成视频时钟的转换位置。 A转换器使用由合成视频时钟提供给系统时钟变换发生器的值将相对于合成视频时钟的转变的位置转换为相对于系统时钟的位置。 该值可以在合成的视频时钟周期之间改变以改变像素分辨率。 合成视频发生器产生相对于系统时钟的合成视频时钟的值。 从合成视频时钟的值，相对于系统时钟的转变位置和相位测量装置的相位差产生的偏移值被组合以确定相对于系统时钟将产生转换的位置。 表示将生成转换的位置的值存储在转换队列中。 这些值的整数部分在每个系统时钟周期内递减。 当这些值的整数部分达到零时，这些值的小数部分（表示系统时钟周期内的转换位置）被提供给转换生成逻辑，以在系统时钟周期中的指定位置产生转换。

公开(公告)号：US20020018251A1

公开(公告)日：2002-02-14

申请号：US09888599

申请日：2001-06-26

Applicant: RICOH COMPANY, LTD.

Inventor： Tatsuya Tsuyuki

IPC: H04N001/04

CPC classification number: H04N1/03 ,  H04N2201/02414 ,  H04N2201/02429 ,  H04N2201/02443 ,  H04N2201/02449 ,  H04N2201/02458 ,  H04N2201/0247 ,  H04N2201/02481 ,  H04N2201/04798

Abstract: The present invention is made to provide a fixing structure for solid state image forming device made inexpensively and easily by simple caulking adhering method with keeping high positional accuracy, by which it is achieved that the solid state image forming device can be separated easily from the image focusing lens holding member when the image focusing lens holding member has a defect, In the fixing structure of present invention, an image focusing lens holding member 3 and an intermediate holding member 6 are adhered by caulking adhering method. Because one or more projecting portion 3c for painting adhesive material formed on the image focusing lens holding member 3, have smaller area than that of bottom surface 6a of the intermediate holding member 6, a space 10 is formed between the image focusing lens holding member 3 and the intermediate holding member 6, the solid state image forming device 1 fixed on the intermediate holding member 6 can be easily separated from the image focusing lens holding member 3 by inserting and turning a tool 11 whose width of top portion is smaller than the width of space 10.

Abstract translation: 本发明提供一种通过简单的铆接粘合方法廉价且容易地制造的固态成像装置的固定结构，并且保持高位置精度，通过该固定结构可以使固体图像形成装置容易地从图像中分离 在图像聚焦透镜保持构件具有缺陷的情况下，聚焦透镜保持构件。在本发明的固定结构中，通过铆接粘合方法粘合图像聚焦透镜保持构件3和中间保持构件6。 由于形成在图像聚焦透镜保持部件3上的涂布粘合剂材料的一个或多个突出部分3c的面积小于中间保持部件6的底面6a的面积，所以在图像聚焦透镜保持部件3之间形成有空间10 并且中间保持构件6，固定在中间保持构件6上的固态图像形成装置1能够容易地从图像聚焦透镜保持构件3与顶部的宽度小于宽度的工具11的插入和转动 的空间10。

公开(公告)号：US06243126B1

公开(公告)日：2001-06-05

申请号：US09521954

申请日：2000-03-09

Applicant: Sueo Ueno

Inventor： Sueo Ueno

IPC: B41J2435

CPC classification number: G02B26/127 ,  B41J2/471 ,  G02B3/08 ,  H04N1/047 ,  H04N1/1135 ,  H04N2201/02441 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04712 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04762 ,  H04N2201/04768 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04796 ,  H04N2201/04798

Abstract: An image carrier is scanned with a laser beam emitted by a semiconductor laser. Part of the laser beam is focused on a photoelectric converter immediately before it scans the image carrier. The laser beam position is adjusted in a direction perpendicular to the laser beam scanning direction in accordance with the output from the photoelectric converter.

Abstract translation: 用半导体激光器发射的激光束扫描图像载体。 在扫描图像载体之前，激光束的一部分聚焦在光电转换器上。 根据光电转换器的输出，在垂直于激光束扫描方向的方向上调整激光束位置。