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    Image reading device, image forming apparatus, and image reading method
    3.
    发明授权
    Image reading device, image forming apparatus, and image reading method 有权
    图像读取装置，图像形成装置和图像读取方法

    公开(公告)号：US09319554B2

    公开(公告)日：2016-04-19

    申请号：US14690650

    申请日：2015-04-20

    Applicant: Kohya Etoh ,  Masafumi Kishi

    Inventor： Kohya Etoh ,  Masafumi Kishi

    IPC: H04N1/04 ,  H04N1/10 ,  H04N1/028 ,  H04N1/00 ,  H04N1/047

    CPC classification number: H04N1/1039 ,  H04N1/0071 ,  H04N1/00737 ,  H04N1/00896 ,  H04N1/00928 ,  H04N1/02815 ,  H04N1/0473 ,  H04N2201/0471 ,  H04N2201/04713 ,  H04N2201/04731 ,  H04N2201/04755 ,  H04N2201/04791 ,  H04N2201/04794

    Abstract: An image reading device includes: a moving body that moves to convey at least any of a light source that irradiates a document, a reflecting member that reflects reflected light from the document, and a photoelectric conversion element that performs photoelectric conversion on the reflected light; a driving unit that drives the moving body such that the moving body moves from a stop position to a target stop position in a sub-scanning direction; a detecting unit that is arranged at a position away from the target stop position in the sub-scanning direction, and detects arrival of the moving body; and a control unit that controls the driving unit such that the driving unit is switched from a state of being driven in a synchronizing operation region to a state of being driven in a self-starting region before the detecting unit detects arrival of the moving body.

    Abstract translation: 图像读取装置包括：移动体，其移动以传送照射文档的光源中的至少一种;反射来自原稿的反射光的反射部件;以及对反射光进行光电转换的光电转换元件; 驱动单元，其驱动移动体，使得移动体在副扫描方向上从停止位置移动到目标停止位置; 检测单元，其设置在远离所述目标停止位置的副扫描方向的位置，并且检测所述移动体的到达; 以及控制单元，其在所述检测单元检测到所述移动体的到达之前，控制所述驱动单元使得所述驱动单元从在同步操作区域中被驱动的状态切换到在自启动区域中被驱动的状态。

    Pixel clock generating device and image forming apparatus
    4.
    发明授权
    Pixel clock generating device and image forming apparatus 有权
    像素时钟发生装置和图像形成装置

    公开(公告)号：US09030517B2

    公开(公告)日：2015-05-12

    申请号：US13042006

    申请日：2011-03-07

    Applicant: Naruhiro Masui

    Inventor： Naruhiro Masui

    IPC: B41J2/435 ,  H04N1/053 ,  G02B26/12 ,  G06K15/12 ,  H04N1/113 ,  H04N1/50 ,  G03G15/04

    CPC classification number: H04N1/053 ,  G02B26/123 ,  G02B26/127 ,  G03G15/04072 ,  G06K15/1219 ,  H04N1/1135 ,  H04N1/506 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04772 ,  H04N2201/04774 ,  H04N2201/04775 ,  H04N2201/04784 ,  H04N2201/04789 ,  H04N2201/04793 ,  H04N2201/04794 ,  H04N2201/04798

    Abstract: A pixel clock generating device includes a time interval detection unit detecting a time interval between a first signal and a second signal in each of cyclically repeating N (≧2) time periods; a comparing unit cyclically selecting a target value from N target values corresponding to the N time periods and outputting an error indicating a difference between the detected time interval and the selected target value for each of the N time periods; a frequency calculation unit correcting a frequency of the pixel clock signal based on the error and cyclically generating a frequency specification signal indicating the corrected frequency for each of the N time periods; a high-frequency clock generating unit generating a high-frequency clock signal; and a pixel clock generating unit generating a pixel clock signal based on the frequency specification signal and the high-frequency clock signal.

    Abstract translation: 像素时钟发生装置包括时间间隔检测单元，其检测周期性地重复的N（≥2）个时间段中的每一个中的第一信号和第二信号之间的时间间隔; 比较单元，从与N个时段对应的N个目标值周期性地选择目标值，并且输出针对所述N个时间段中的每一个的所述检测到的时间间隔与所选择的目标值之间的差异的误差; 频率计算单元，基于所述误差校正所述像素时钟信号的频率，并且循环地生成指示所述N个时间段中的每一个的校正频率的频率指定信号; 产生高频时钟信号的高频时钟发生单元; 以及像素时钟生成单元，其基于频率指定信号和高频时钟信号生成像素时钟信号。

    Optical scanning device in image forming apparatus, and control method thereof
    5.
    发明授权
    Optical scanning device in image forming apparatus, and control method thereof 有权
    图像形成装置中的光学扫描装置及其控制方法

    公开(公告)号：US09025197B2

    公开(公告)日：2015-05-05

    申请号：US12125386

    申请日：2008-05-22

    Applicant: Hitoshi Iwai

    Inventor： Hitoshi Iwai

    IPC: G06F15/00 ,  H04N1/04 ,  B41J2/47 ,  B41J15/14 ,  H04N1/047 ,  H04N1/50

    CPC classification number: H04N1/0473 ,  H04N1/506 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04731 ,  H04N2201/04787 ,  H04N2201/04791 ,  H04N2201/04793

    Abstract: An optical scanning device which forms a plurality of scanning lines in parallel in a main scanning direction on a photosensitive member by a plurality of laser beams detects the curvature values in the sub-scanning direction of the scanning lines, and corrects a curvature value in the sub-scanning direction corresponding to each of the scanning lines. When detecting the curvature value, the optical scanning device detects the curvature values in the sub-scanning direction of two scanning lines, and calculates the curvature value in the sub-scanning direction of a scanning line between the two scanning lines based on the detected curvature values in the sub-scanning direction of the two scanning lines. With this arrangement, the curvatures in the sub-scanning direction of scanning lines are corrected effectively with high accuracy for all laser beams in a multi-beam optical scanning device using a VCSEL or the like.

    Abstract translation: 通过多个激光束在感光构件上沿主扫描方向并行地形成多条扫描线的光学扫描装置检测扫描线的副扫描方向上的曲率值，并校正扫描线的曲率值 副扫描方向对应于每条扫描线。 当检测曲率值时，光学扫描装置检测两条扫描线的副扫描方向上的曲率值，并且基于检测到的曲率计算两条扫描线之间的扫描线的副扫描方向上的曲率值 两个扫描线的副扫描方向的值。 利用这种布置，使用VCSEL等的多光束光学扫描装置中的所有激光束的扫描线的副扫描方向上的曲率以高精度被有效地校正。

    Image forming apparatus, pattern position determining method, and image forming system
    6.
    发明授权
    Image forming apparatus, pattern position determining method, and image forming system 有权
    图像形成装置，图案位置确定方法和图像形成系统

    公开(公告)号：US08960835B2

    公开(公告)日：2015-02-24

    申请号：US13558627

    申请日：2012-07-26

    Applicant: Atsushi Yamazaki ,  Tatsuhiko Okada ,  Mamoru Yorimoto ,  Daisaku Horikawa ,  Makoto Moriwaki

    Inventor： Atsushi Yamazaki ,  Tatsuhiko Okada ,  Mamoru Yorimoto ,  Daisaku Horikawa ,  Makoto Moriwaki

    IPC: B41J29/38 ,  H04N1/047

    CPC classification number: B41J29/38 ,  H04N1/047 ,  H04N2201/0471 ,  H04N2201/04718 ,  H04N2201/04767

    Abstract: A disclosed image forming apparatus includes a reading unit including a light emitting element for emitting light to a record medium, and a light receiving element for receiving reflected light; a print data storing unit storing print data of a uniform pattern which has a color different from a color of the test pattern and is provided in an area including the test pattern, a pattern forming unit printing the test pattern on the uniform pattern after the uniform pattern is printed, a relatively moving unit moving the record medium or the reading unit relatively at a constant speed, a first detection data obtaining unit obtaining first detection data received as the reflection light while the light moves and impinges on the test pattern, and a position detecting unit providing a calculation for determining a position of a line of the test pattern to detect the test pattern.

    Abstract translation: 公开的图像形成装置包括读取单元，其包括用于向记录介质发射光的发光元件和用于接收反射光的光接收元件; 打印数据存储单元，其存储具有与测试图案的颜色不同的颜色的均匀图案的打印数据，并且设置在包括测试图案的区域中;图案形成单元，在均匀图案之后在均匀图案上印刷测试图案 打印图形，相对移动单元以恒定速度相对移动记录介质或读取单元，第一检测数据获取单元获取在光移动并撞击测试图案时作为反射光接收的第一检测数据，以及 位置检测单元提供用于确定测试图案的线的位置以检测测试图案的计算。

    APPARATUS AND METHOD OF APPARATUS
    7.
    发明申请
    APPARATUS AND METHOD OF APPARATUS 有权
    装置和装置的方法

    公开(公告)号：US20140300908A1

    公开(公告)日：2014-10-09

    申请号：US14214378

    申请日：2014-03-14

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Kazushi Fujimoto

    IPC: H04N1/00

    CPC classification number: G06K15/00 ,  H04N1/0473 ,  H04N1/12 ,  H04N1/1911 ,  H04N1/407 ,  H04N2201/0471 ,  H04N2201/04725 ,  H04N2201/04734

    Abstract: In an apparatus including a first acquisition unit configured to acquire information of an operation amount of a conveyance unit configured to convey a printing medium, a second acquisition unit configured to acquire information of a density of an image printed by a printhead, and a specify unit configured to specify the density of the image based on histogram collection on the information of the density of the image acquired by the second acquisition, the following correction is made. More specifically, a correction value of the information of the operation amount based on a histogram on the acquired information of the operation amount is decided. Then, based on the decided correction value, the acquired information of the operation amount is corrected.

    Abstract translation: 在包括第一获取单元的装置中，第一获取单元被配置为获取被配置为传送打印介质的输送单元的操作量的信息，第二获取单元被配置为获取由打印头打印的图像的浓度的信息，以及指定单元 被配置为基于对通过第二次获取获取的图像的浓度的信息的直方图收集来指定图像的浓度，进行以下校正。 更具体地，确定基于获取的操作量信息的直方图的操作量的信息的校正值。 然后，基于所确定的校正值，校正所获取的操作量的信息。

    IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS
    9.
    发明申请
    IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS 有权
    图像读取装置和图像形成装置

    公开(公告)号：US20140226172A1

    公开(公告)日：2014-08-14

    申请号：US14142561

    申请日：2013-12-27

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Mizue Kadobayashi

    IPC: H04N1/00 ,  H04N1/10

    CPC classification number: H04N1/00896 ,  H04N1/00013 ,  H04N1/00037 ,  H04N1/00551 ,  H04N1/00588 ,  H04N1/00689 ,  H04N1/00708 ,  H04N1/00737 ,  H04N1/00928 ,  H04N1/0473 ,  H04N1/10 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/0091 ,  H04N2201/0471 ,  H04N2201/04739

    Abstract: An image reading apparatus includes a carriage, a carriage detector, and a control unit. The carriage detector outputs a detection signal of the carriage when the carriage is at the home position, and outputs a non-detection signal of the carriage when the carriage is located closer to a document size reading position than a predetermined position between the home position and the document size reading position. The control unit moves the carriage to the home position when the image reading apparatus enters a sleep mode, keeps the carriage detained while performing initialization after the sleep mode is cancelled, and moves the carriage, upon receipt of a scanning instruction after the initialization is completed, toward the document size reading position in the case where the carriage detector outputs the detection signal of the carriage.

    Abstract translation: 图像读取装置包括滑架，滑架检测器和控制单元。 滑架检测器在托架处于原始位置时输出托架的检测信号，并且当托架位于比原始位置和原始位置之间的预定位置更靠近原稿尺寸读取位置时，输出托架的非检测信号 文档大小读数位置。 当图像读取装置进入睡眠模式时，控制单元将滑架移动到原始位置，在睡眠模式被取消之后，在执行初始化时保持托架停留，并且在初始化完成之后接收到扫描指令时移动滑架 在滑架检测器输出托架的检测信号的情况下朝向原稿尺寸读取位置。

    Image reading device capable of reading skew sheet without image loss
    10.
    发明授权
    Image reading device capable of reading skew sheet without image loss 有权
    图像读取装置能够读取没有图像丢失的偏斜片

    公开(公告)号：US08773739B2

    公开(公告)日：2014-07-08

    申请号：US13619004

    申请日：2012-09-14

    Applicant: Toshiki Motoyama

    Inventor： Toshiki Motoyama

    IPC: H04N1/04

    CPC classification number: H04N1/047 ,  H04N1/00705 ,  H04N1/00745 ,  H04N1/00774 ,  H04N1/121 ,  H04N2201/0081 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04737 ,  H04N2201/04786 ,  H04N2201/04794

    Abstract: An image reading device includes a conveying unit, reading unit, detecting unit, and control unit. The conveying unit conveys two sheets of the original one by one. The reading unit reads a sheet passing past a reading position. The detecting unit detects a sheet passing past a detection position upstream of the reading position in a conveying direction. The control unit controls the reading unit to start a reading process when a leading edge of sheet reaching a position upstream of the reading position by a first distance, controls the reading unit to stop the reading process when a trailing edge of sheet reaching a position downstream of the reading position by a second distance, determines an interspace between the trailing edge of sheet and a leading edge of a subsequently-conveyed sheet, and updates the first distance and the second distance based on the interspace.

    Abstract translation: 图像读取装置包括输送单元，读取单元，检测单元和控制单元。 输送单元一张一张地传送原稿的两张。 读取单元读取经过阅读位置的纸张。 检测单元检测在输送方向上经过读取位置上游的检测位置的纸张。 当片材的前端到达读取位置上游位置第一距离的位置时，控制单元控制读取单元开始读取处理，当片材的后缘到达下游位置时，控制读取单元停止读取过程 确定读取位置的第二距离，确定片材的后缘和随后传送的片材的前缘之间的间隙，并且基于间隙更新第一距离和第二距离。

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