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1. 发明授权

US5457489A Image forming apparatus using pulse width modulation 失效
标题翻译：使用脉冲宽度调制的图像形成装置
公开(公告)号：US5457489A
公开(公告)日：1995-10-10
申请号：US47963
申请日：1993-04-15
申请人： Hiroyuki Yamamoto , Satoshi Haneda , Kouichi Takaki , Kouichi Sawada
发明人： Hiroyuki Yamamoto , Satoshi Haneda , Kouichi Takaki , Kouichi Sawada
IPC分类号： B41J2/44 , G06K15/12 , H04N1/23 , H04N1/405 , H04N1/21
CPC分类号： G06K15/1204
摘要： An image forming machine in which an image is formed on a recording material by an imagewise exposure to a light source that is modulated in accordance with to an image signal. The machine includes a device for generating a reference wave with a predetermined frequency, a generator for generating a pulse width modulating signal to modulate the light source in accordance with the image signal and the reference wave. A ratio of the frequency of the image signal to the predetermined frequency of the reference wave is set based on a relationship 1:(1+n/m) where n and m are positive integers and n is less than m.
摘要翻译：一种图像形成机，其中通过对根据图像信号调制的光源进行成像曝光而在记录材料上形成图像。该机器包括用于产生具有预定频率的参考波的装置，用于根据图像信号和参考波产生脉宽调制信号以调制光源的发生器。基于其中n和m是正整数且n小于m的关系1：（1 + n / m）来设置图像信号的频率与参考波的预定频率的比率。

2. 发明授权

US5583557A Image forming apparatus which corrects a deviation in a distance between plural light beams 失效
标题翻译：图像形成装置，其校正多个光束之间的距离的偏差
公开(公告)号：US5583557A
公开(公告)日：1996-12-10
申请号：US264784
申请日：1994-06-23
申请人： Hiroyuki Yamamoto , Toshihiro Motoi , Kouichi Takaki
发明人： Hiroyuki Yamamoto , Toshihiro Motoi , Kouichi Takaki
IPC分类号： G02B26/10 , B41J2/44 , G02B27/00 , G06K15/12 , H04N1/047 , H04N1/113 , H04N1/12 , H04N1/191 , H04N1/21
CPC分类号： H04N1/1911 , G02B27/0031 , G06K15/1261 , H04N1/047 , H04N1/1135 , H04N1/12 , H04N2201/04729 , H04N2201/04731 , H04N2201/04789 , H04N2201/04791
摘要： In an image forming apparatus for simultaneously recording plural image lines on a recording medium by scanning simultaneously with plural light beams along parallel scanning lines in a primary scanning direction, two light beam detectors each having a starting-side are arranged in such a way that the starting-sides are not in parallel to each other so that the distance between the starting-sides differs depending on the scanning line. The difference in the distances of two light beams is measured, and the deviation between the two light beams is determined on the basis of the difference in the distances.
摘要翻译：在通过沿主扫描方向沿并行扫描线与多个光束同时扫描在记录介质上同时记录多个图像行的图像形成装置中，具有起始侧的两个光束检测器被布置成使得起始侧彼此不平行，使得起始侧之间的距离根据扫描线而不同。测量两个光束的距离的差异，并且基于距离的差异来确定两个光束之间的偏差。

3. 发明授权

US07538809B2 CCD pulse generator 失效
标题翻译： CCD脉冲发生器
公开(公告)号：US07538809B2
公开(公告)日：2009-05-26
申请号：US10780604
申请日：2004-02-19
申请人： Kouichi Takaki , Hiroyuki Yamamoto , Takeshi Yoshino
发明人： Kouichi Takaki , Hiroyuki Yamamoto , Takeshi Yoshino
IPC分类号： H04N3/14 , H04N5/335
CPC分类号： H04N5/335
摘要： This invention relates to a CCD pulse generator capable of generating a CCD driving signal and CCD output processing signal at accurate timings. The pulse generator includes a digital delay type pulse control section which finely delays a transfer signal for driving a CCD, thereby generating a plurality of delay signals, and changes selection of these delay signals, thereby generating a CCD driving signal and/or CCD output processing signal corresponding to set rise and fall timings, an inverted/non-inverted signal generating section which generates the inverted signal and non-inverted signal of the generated signal, a selection section which selects the inverted signal and non-inverted signal of the generated signal, a blanking section which temporarily disables the generated signal, an output section which has an output enable function and outputs the signal selected by the selection section, and an output signal condition setting section which sets pieces of condition setting information that determine the operations of the respective sections.
摘要翻译：本发明涉及能够在精确定时产生CCD驱动信号和CCD输出处理信号的CCD脉冲发生器。脉冲发生器包括数字延迟型脉冲控制部分，其精细地延迟用于驱动CCD的传送信号，从而产生多个延迟信号，并改变这些延迟信号的选择，从而产生CCD驱动信号和/或CCD输出处理对应于设定的上升和下降定时的信号;反相/非反相信号产生部分，其产生所生成的信号的反相信号和非反相信号;选择部分，其选择产生的信号的反相信号和非反相信号，暂时禁止产生的信号的消隐部分，具有输出使能功能并输出由选择部分选择的信号的输出部分，以及输出信号条件设置部分，其设置条件设置信息，各部分。

4. 发明授权

US5426528A Correction device of light beam deviation of primary scanning direction thereof in image forming apparatus 失效
标题翻译：图像形成装置中其主扫描方向的光束偏差校正装置
公开(公告)号：US5426528A
公开(公告)日：1995-06-20
申请号：US213956
申请日：1994-03-16
申请人： Hiroyuki Yamamoto , Kouichi Takaki
发明人： Hiroyuki Yamamoto , Kouichi Takaki
IPC分类号： B41J2/44 , G02B26/10 , G06K15/12 , H04N1/053 , H04N1/113 , H04N1/12 , H04N1/191 , G02B26/08
CPC分类号： H04N1/053 , G06K15/1261 , H04N1/1911 , H04N1/1135 , H04N1/12 , H04N2201/04712 , H04N2201/04784 , H04N2201/04786
摘要： A correction device for correcting the deviation of light beams of a primary scanning direction used for an image forming apparatus in which a plurality of light beams are simultaneously scanned on a recording medium in the primary scanning direction so that a plurality of lines are simultaneously recorded. A plurality of beam detectors, the number of which corresponds to the number of beams of light, are disposed in a scanning region in parallel with the primary scanning direction. Only one light beam is incident upon each beam detector, and a difference of detection time between the plurality of beam detectors is detected by a same beam detection interval detector. A different beam detection interval detector detects a time difference between detection of different light beams are detected. Based on the time differences detected by the same beam detection interval detector and by the different beam detection interval detector, a deviation time calculator calculates the deviation of a plurality of light beams of the primary scanning direction. Based on the calculation result of the deviation time calculator, a deviation corrector controls the phase of a printing clock for the image formation conducted by the plurality of light beams and also controls a timed relation of the start of image formation.
摘要翻译：一种用于校正用于图像形成装置的主扫描方向上的光束偏离的校正装置，其中在主扫描方向上在记录介质上同时扫描多个光束，以便同时记录多条线。多个光束检测器的数量对应于光束数量，被设置在与主扫描方向平行的扫描区域中。只有一个光束入射到每个光束检测器上，并且通过相同的光束检测间隔检测器检测多个光束检测器之间的检测时间差。不同的光束检测间隔检测器检测不同光束的检测之间的时间差。基于由同一光束检测间隔检测器和不同的光束检测间隔检测器检测的时间差，偏差时间计算器计算主扫描方向的多个光束的偏差。基于偏差时间计算器的计算结果，偏差校正器控制由多个光束进行的图像形成的打印时钟的相位，并且还控制图像形成开始的定时关系。

5. 发明授权

US07986433B2 Image printing apparatus and method of adjusting and correcting main-scanning offset in image printing apparatus 有权
标题翻译：图像打印装置和图像打印装置中的主扫描偏移的校正和校正方法
公开(公告)号：US07986433B2
公开(公告)日：2011-07-26
申请号：US12268326
申请日：2008-11-10
申请人： Kouichi Takaki
发明人： Kouichi Takaki
IPC分类号： G06K15/00 , B41J2/205
CPC分类号： H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/02443 , H04N2201/0471 , H04N2201/04717 , H04N2201/04732 , H04N2201/04744 , H04N2201/04749 , H04N2201/04768 , H04N2201/04774 , H04N2201/04798
摘要： This invention is directed to an image printing apparatus which can print images without any halfway offset or obverse/reverse pixel offset at a low cost. An image printing apparatus includes a clock generating section which generates a dot clock as the basis of each pixel forming an image, an image printing section which prints a one-line image in a main scanning direction in accordance with image data with reference to the dot clock output from the clock generating section, and prints a one-page image by repeating in the sub-scanning direction one-line image printing performed in the main scanning direction, and a clock control section which changeably controls the frequency of the dot clock during scanning of one line in the main scanning direction.
摘要翻译：本发明涉及一种图像打印设备，其可以以低成本打印图像而没有任何中途偏移或正面/反向像素偏移。一种图像打印设备包括：时钟产生部分，其生成点时钟作为形成图像的每个像素的基础，图像打印部分，根据图像数据参照点来在主扫描方向上打印单行图像从时钟产生部分输出的时钟，并且通过在副扫描方向上重复在主扫描方向上执行的一行图像打印来打印单页图像，以及时钟控制部分，其可变地控制点时钟频率在主扫描方向扫描一行。

6. 发明授权

US07110017B2 Signal controlling circuit 有权
公开(公告)号：US07110017B2
公开(公告)日：2006-09-19
申请号：US10383048
申请日：2003-03-06
申请人： Takeshi Yoshino , Kenji Izumiya , Kouichi Takaki
发明人： Takeshi Yoshino , Kenji Izumiya , Kouichi Takaki
IPC分类号： B41J2/435
CPC分类号： H03K5/1506 , G06K15/1219 , H03K5/135 , H04N1/053 , H04N2201/04784 , H04N2201/04789
摘要： There is described a signal controlling circuit particularly used in a printer or copier. The circuit includes a delay chain section to generate a plurality of delayed clock signals, a synchronized signal detecting section to detect a number of delay stages, a total delay time of which is equivalent to a single period of the reference clock signal, based on delayed clock signals synchronized with an index signal and are selected from the plurality of delayed clock signals, an index signal counting section to count index signals inputted into the index signal counting section, a phase shift calculating section to calculate a phase shift amount in respect to the reference clock signal, and a delayed clock selecting section to select a specific delayed clock signal out of the plurality of delayed clock signals in an alternative way, so as to output the specific delayed clock signal to an external section.

7. 发明授权

US08368903B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08368903B2
公开(公告)日：2013-02-05
申请号：US12632346
申请日：2009-12-07
申请人： Kouichi Takaki
发明人： Kouichi Takaki
IPC分类号： G06K15/02
CPC分类号： H04N1/04 , B41J11/008 , G03G15/0131 , G03G15/5058 , G03G2215/00059
摘要： An image forming apparatus including a control section which detects an offset of a recording sheet being conveyed, the offset being in a main scanning direction perpendicular to a conveyance direction of the recording sheet; performs an offset regulation control which adjusts a main scanning direction image area signal in accordance with the offset; and forms a patch at a non-transfer area on an image carrier, wherein the control section performs a first control based on the offset of the recording sheet for the offset regulation control while a sub scanning direction image area signal is active for image forming on the recording sheet, and performs a second control for the offset regulation control while the image area signal in the sub scanning direction is inactive.
摘要翻译：一种图像形成装置，包括：控制部分，其检测正被传送的记录纸张的偏移，所述偏移在垂直于所述记录纸张的传送方向的主扫描方向上; 执行偏移调整控制，其根据偏移调整主扫描方向图像区域信号; 并且在图像载体上的非传送区域上形成贴片，其中控制部分基于用于偏移调节控制的记录纸张的偏移执行第一控制，而副扫描方向图像区域信号对图像形成有效记录纸，并且在副扫描方向上的图像区域信号无效时，执行偏移调节控制的第二控制。

8. 发明授权

US07940421B2 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US07940421B2
公开(公告)日：2011-05-10
申请号：US11283695
申请日：2005-11-22
申请人： Kouichi Takaki
发明人： Kouichi Takaki
IPC分类号： H04N1/60 , H04N1/54 , H04N1/56 , G03G15/01 , G03G15/04 , G03G15/23 , G03G15/24 , B41J2/47 , B41J2/455
CPC分类号： G03G15/238 , G03G15/0194 , G03G2215/0119
摘要： A tandem type color image forming apparatus, which can continuously form color images each containing two or more colors, including: a signal creating section having, for each color, two or more image area setting counters for generating an image valid area signal to set a starting position and a width of an image formation area in a sub-scanning direction; and a control section for executing color image formation control on a predetermined face of paper, based on an image top signal for controlling writing of an image on an image carrier and the image valid area signal for each color, wherein the control section sets each of the outputs of the image area setting counters independently according to a preset image formation mode, and selects and controls one of the image area setting counters for each image formation of each color.
摘要翻译：一种串联型彩色图像形成装置，其可以连续地形成每个包含两种或更多种颜色的彩色图像，包括：信号产生部分，其具有用于每种颜色的两个或更多个图像区域设置计数器，用于产生图像有效区域信号以设置起始位置和副扫描方向上的图像形成区域的宽度; 以及控制部分，用于基于用于控制对图像载体上的图像的写入的图像顶部信号和每种颜色的图像有效区域信号，在纸张的预定面上执行彩色图像形成控制，其中控制部分将每个图像区域设置计数器的输出根据预设图像形成模式独立地选择并控制每种颜色的每个图像形成的图像区域设置计数器之一。

9. 发明授权

US07471411B2 Image printing apparatus and method of adjusting and correcting main-scanning offset in image printing apparatus 失效
标题翻译：图像打印装置和图像打印装置中的主扫描偏移的校正和校正方法
公开(公告)号：US07471411B2
公开(公告)日：2008-12-30
申请号：US10692268
申请日：2003-10-23
申请人： Kouichi Takaki
发明人： Kouichi Takaki
IPC分类号： G06K15/00 , B41J2/205
CPC分类号： H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/02443 , H04N2201/0471 , H04N2201/04717 , H04N2201/04732 , H04N2201/04744 , H04N2201/04749 , H04N2201/04768 , H04N2201/04774 , H04N2201/04798
摘要： This invention is directed to an image printing apparatus which can print images without any halfway offset or obverse/reverse pixel offset at a low cost. An image printing apparatus includes a clock generating section which generates a dot clock as the basis of each pixel forming an image, an image printing section which prints a one-line image in a main scanning direction in accordance with image data with reference to the dot clock output from the clock generating section, and prints a one-page image by repeating in the sub-scanning direction one-line image printing performed in the main scanning direction, and a clock control section which changeably controls the frequency of the dot clock during scanning of one line in the main scanning direction.
摘要翻译：本发明涉及一种图像打印设备，其可以以低成本打印图像而没有任何中途偏移或正面/反向像素偏移。一种图像打印设备包括：时钟产生部分，其生成点时钟作为形成图像的每个像素的基础，图像打印部分，根据图像数据参照点来在主扫描方向上打印单行图像从时钟产生部分输出的时钟，并且通过在副扫描方向上重复在主扫描方向上执行的一行图像打印来打印单页图像，以及时钟控制部分，其可变地控制点时钟频率在主扫描方向扫描一行。

10. 发明授权

US07287700B2 Light emitting timing adjustment method, laser scanning apparatus, and image formation apparatus 有权
标题翻译：发光定时调整方法，激光扫描装置和图像形成装置
公开(公告)号：US07287700B2
公开(公告)日：2007-10-30
申请号：US11195741
申请日：2005-08-03
申请人： Kouichi Takaki , Kenji Izumiya , Toshihiro Motoi
发明人： Kouichi Takaki , Kenji Izumiya , Toshihiro Motoi
IPC分类号： G06K7/10
CPC分类号： H04N1/053 , G02B26/123 , H04N1/1135 , H04N1/1911 , H04N2201/02439 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744 , H04N2201/04781 , H04N2201/04786 , H04N2201/04794
摘要： A laser scanning apparatus includes: a plurality of laser light sources including a first laser light source and a second laser light source; a scanner for scanning laser lights emitted from the plurality of laser light sources in a main scanning direction; a light receiving sensor for receiving the laser lights deflected and scanned by the scanner; and a signal generation unit for generating a first signal which is in synchronization with a pixel clock for the second laser light source based on an output from the light receiving sensor obtained by a laser light emitted from the first laser light source, and for generating a second signal which is in synchronization with a pixel clock for the first laser light source based on an output from the light receiving sensor obtained by a laser light emitted from the second laser light source.
摘要翻译：激光扫描装置包括：多个激光源，包括第一激光光源和第二激光光源; 扫描器，用于沿主扫描方向扫描从所述多个激光光源发射的激光; 用于接收由扫描仪偏转和扫描的激光的光接收传感器; 信号产生单元，用于基于从由第一激光光源发射的激光获得的光接收传感器的输出，产生与第二激光光源的像素时钟同步的第一信号，并产生第二信号，其基于从由第二激光光源发射的激光获得的光接收传感器的输出与第一激光光源的像素时钟同步。

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