公开(公告)号：US07995251B2

公开(公告)日：2011-08-09

申请号：US12055666

申请日：2008-03-26

申请人： Jun Tanabe ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori

发明人： Jun Tanabe ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori

IPC分类号： H04N1/04

CPC分类号： G02B26/123 ,  G02B26/124 ,  H04N1/40068

摘要： A light-source drive control unit divides each pixel of the image data into a plurality of subpixels, deletes certain subpixels from the image data in accordance with predetermined correction data, shifts remaining subpixels in the sub-scanning direction thereby obtaining reduced image data, and controls a plurality of light sources based on the reduced image data in such a manner that one line of the subpixels is formed with a light beam emitted from a corresponding one of the light sources.

摘要翻译： 光源驱动控制单元将图像数据的每个像素分成多个子像素，根据预定的校正数据从图像数据中删除某些子像素，在副扫描方向上移动剩余的子像素，从而获得缩小的图像数据，以及 基于缩小图像数据控制多个光源，使得一行子像素由从相应的一个光源发射的光束形成。

公开(公告)号：US07701480B2

公开(公告)日：2010-04-20

申请号：US12029115

申请日：2008-02-11

申请人： Atsufumi Omori ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Jun Tanabe

发明人： Atsufumi Omori ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Jun Tanabe

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： B41J2/45

摘要： A circuit for driving a plurality of light emitting units includes a current biasing unit that biases a light emitting current with an overshoot current and supplies the resultant current to each of the light emitting units. The light emitting current is determined based on an amount of light emitted from each of the light emitting units.

摘要翻译： 用于驱动多个发光单元的电路包括：电流偏置单元，其利用过冲电流偏置发光电流，并将所得到的电流提供给每个发光单元。 基于从每个发光单元发射的光量来确定发光电流。

公开(公告)号：US20090195635A1

公开(公告)日：2009-08-06

申请号：US12358867

申请日：2009-01-23

申请人： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Dan Ozasa ,  Jun Tanabe

发明人： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Dan Ozasa ,  Jun Tanabe

IPC分类号： B41J15/14

CPC分类号： G02B26/127

摘要： A deflector deflects a light beam emitted from a light source including a plurality of light-emitting units. A scanning optical system focuses the light beam deflected by the deflector on a scanning target surface. A monitoring photoreceiver receives a part of a light beam deflected by the deflector and directed toward an area within a scanning area outside an image area. A detecting unit individually detects emission powers of at least two light-emitting units based on an output signal of the monitoring photoreceiver in a single sweep of scanning.

摘要翻译： 偏转器偏转从包括多个发光单元的光源发射的光束。 扫描光学系统将由偏转器偏转的光束聚焦在扫描目标表面上。 监视光接收器接收由偏转器偏转并被指向图像区域外的扫描区域内的区域的一部分光束。 检测单元在单次扫描扫描中基于监视光接收器的输出信号单独地检测至少两个发光单元的发射功率。

公开(公告)号：US20090174915A1

公开(公告)日：2009-07-09

申请号：US12348618

申请日：2009-01-05

申请人： YASUHIRO NIHEI ,  Masaaki Ishida ,  Atsufumi Omori ,  Dan Ozasa ,  Jun Tanabe

发明人： YASUHIRO NIHEI ,  Masaaki Ishida ,  Atsufumi Omori ,  Dan Ozasa ,  Jun Tanabe

IPC分类号： H04N1/04

CPC分类号： H04N1/053 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04784 ,  H04N2201/04789

摘要： A write control circuit includes a first data switching circuit that sets a correspondence relationship between signals from line buffers and input signals to a delay circuitry, based on a signal from a CPU; and a second data switching circuit that sets a correspondence relationship between output signals of the delay circuitry and drive signals, based on a signal from the CPU. This enables a plurality of light emitting sections to be driven properly, regardless of a main scanning direction and an arrangement of a plurality of light spots being in any of CASE-1 to CASE-4 in an optical scanning device.

摘要翻译： 写控制电路包括：第一数据切换电路，其基于来自CPU的信号，将来自线缓冲器的信号和输入信号之间的对应关系设置为延迟电路; 以及第二数据切换电路，其基于来自CPU的信号来设置延迟电路的输出信号和驱动信号之间的对应关系。 这使得能够适当地驱动多个发光部，而不管主扫描方向和在光学扫描装置中的CASE-1至CASE-4中的任何一个的多个光点的布置。

公开(公告)号：US20080088893A1

公开(公告)日：2008-04-17

申请号：US11882691

申请日：2007-08-03

申请人： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Jun Tanabe

发明人： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Jun Tanabe

IPC分类号： H04N1/46

CPC分类号： H04N1/40037 ,  G06K15/1219 ,  G06K15/1261 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04787 ,  H04N2201/04794

摘要： An optical scanning device of the invention includes: n-odd (n≧2) light sources disposed at different positions at least in a sub scanning direction; a light source driving control part configured to control a light emitting state of the light source; and a sub-scanning pixel position detecting part configured to depict one pixel with m-odd (n≧m≧2) light sources of the n-odd (n≧2) light sources and to detect a deviation in position of the one pixel in a sub scanning direction, wherein the light source driving control part is configured to correct the deviation in position of the one pixel in the sub scanning direction at a resolution equal to or higher than a density of the pixel, depicted with the m-odd light sources, by controlling the light emitting state of the m-odd light sources on the basis of a result of detection with the sub-scanning pixel position detecting part.

摘要翻译： 本发明的光学扫描装置包括：至少在副扫描方向上设置在不同位置的n奇数（n> = 2）个光源; 被配置为控制所述光源的发光状态的光源驱动控制部; 以及副扫描像素位置检测部，被配置为用n个奇数（n> = 2）个光源的m奇数（n> = m> = 2）个光源描绘一个像素，并且检测位于 在副扫描方向上的一个像素，其中光源驱动控制部被配置为以等于或高于像素的密度的像素的像素的像素的像素的像素的像素的像素的像素的像素的像素的像素的像素的像素的像素的像素的像素 通过基于用副扫描像素位置检测部分的检测结果控制m个奇数光源的发光状态，可以获得m个奇数光源。

公开(公告)号：US20070132828A1

公开(公告)日：2007-06-14

申请号：US11565315

申请日：2006-11-30

申请人： Masaaki ISHIDA ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Jun Tanabe

发明人： Masaaki ISHIDA ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Jun Tanabe

IPC分类号： B41J2/455

CPC分类号： B41J2/473 ,  B41J2/455 ,  G02B26/123 ,  G02B26/124

摘要： A disclosed optical scanner includes a light source unit and a control unit configured to control the light source unit. Light emitted from the light source unit is scanned to expose a scan object surface and form an image on the scan object surface. The light source unit includes plural light sources arranged at a density equal to N (N being an integer of two or more) times higher than a density of pixels on the scan object surface. The control unit controls the light source unit such that one pixel is formed by at least two of the light sources.

摘要翻译： 所公开的光学扫描器包括光源单元和被配置为控制光源单元的控制单元。 从光源单元发射的光被扫描以暴露扫描对象表面并在扫描对象表面上形成图像。 光源单元包括以等于扫描对象面上的像素密度的N（N为2以上的整数）的密度排列的多个光源。 控制单元控制光源单元，使得一个像素由至少两个光源形成。

公开(公告)号：US08446444B2

公开(公告)日：2013-05-21

申请号：US12358867

申请日：2009-01-23

申请人： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Dan Ozasa ,  Jun Tanabe

发明人： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Dan Ozasa ,  Jun Tanabe

IPC分类号： B41J2/435 ,  B41J2/455 ,  B41J2/47

CPC分类号： G02B26/127

摘要： A deflector deflects a light beam emitted from a light source including a plurality of light-emitting units. A scanning optical system focuses the light beam deflected by the deflector on a scanning target surface. A monitoring photoreceiver receives a part of a light beam deflected by the deflector and directed toward an area within a scanning area outside an image area. A detecting unit individually detects emission powers of at least two light-emitting units based on an output signal of the monitoring photoreceiver in a single sweep of scanning.

摘要翻译： 偏转器偏转从包括多个发光单元的光源发射的光束。 扫描光学系统将由偏转器偏转的光束聚焦在扫描目标表面上。 监视光接收器接收由偏转器偏转并被指向图像区域外的扫描区域内的区域的一部分光束。 检测单元在单次扫描扫描中基于监视光接收器的输出信号单独地检测至少两个发光单元的发射功率。

公开(公告)号：US08310516B2

公开(公告)日：2012-11-13

申请号：US11913558

申请日：2006-08-30

申请人： Jun Tanabe ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori

发明人： Jun Tanabe ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori

IPC分类号： B41J2/45 ,  B41J2/47

CPC分类号： G02B26/123 ,  B41J2/455 ,  B41J2/473 ,  H04N1/1135 ,  H04N1/40031

摘要： A light scanning apparatus having plural light sources includes a light source control unit configured to control the light sources to form L (L≧2) light beam arrays aligned in a sub scanning direction each of which L light beam arrays are formed by causing M ((N−1)≧M≧1) light sources out of N (N≧2) light sources assigned to each of the L light beam arrays to emit light as M light emitting sources, wherein each of the L light beam arrays forms a pixel and a total of L pixels aligned in the sub scanning direction are formed.

摘要翻译： 具有多个光源的光扫描装置包括光源控制单元，被配置为控制光源以形成沿副扫描方向排列的L（L≥2）个光束阵列，每个L光束阵列通过使M（ （N-1）≥M≥1）分配给每个L光束阵列的N（N≥2）个光源中的光源作为M个发光源发光，其中L个光束阵列中的每一个形成 形成在副扫描方向上对齐的L个像素和总共L个像素。

公开(公告)号：US08253768B2

公开(公告)日：2012-08-28

申请号：US11565315

申请日：2006-11-30

申请人： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Jun Tanabe

发明人： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Jun Tanabe

IPC分类号： B41J2/47 ,  B41J2/385 ,  B41J15/14

CPC分类号： B41J2/473 ,  B41J2/455 ,  G02B26/123 ,  G02B26/124

摘要： A disclosed optical scanner includes a light source unit and a control unit configured to control the light source unit. Light emitted from the light source unit is scanned to expose a scan object surface and form an image on the scan object surface. The light source unit includes plural light sources arranged at a density equal to N (N being an integer of two or more) times higher than a density of pixels on the scan object surface. The control unit controls the light source unit such that one pixel is formed by at least two of the light sources.

摘要翻译： 所公开的光学扫描器包括光源单元和被配置为控制光源单元的控制单元。 从光源单元发射的光被扫描以暴露扫描对象表面并在扫描对象表面上形成图像。 光源单元包括以等于扫描对象面上的像素密度的N（N为2以上的整数）的密度排列的多个光源。 控制单元控制光源单元，使得一个像素由至少两个光源形成。

公开(公告)号：US20080239336A1

公开(公告)日：2008-10-02

申请号：US12055666

申请日：2008-03-26

申请人： Jun TANABE ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori

发明人： Jun TANABE ,  Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori

IPC分类号： G06F15/00

CPC分类号： G02B26/123 ,  G02B26/124 ,  H04N1/40068

摘要： A light-source drive control unit divides each pixel of the image data into a plurality of subpixels, deletes certain subpixels from the image data in accordance with predetermined correction data, shifts remaining subpixels in the sub-scanning direction thereby obtaining reduced image data, and controls a plurality of light sources based on the reduced image data in such a manner that one line of the subpixels is formed with a light beam emitted from a corresponding one of the light sources.

摘要翻译： 光源驱动控制单元将图像数据的每个像素分成多个子像素，根据预定的校正数据从图像数据中删除某些子像素，在副扫描方向上移动剩余的子像素，从而获得缩小的图像数据，以及 基于缩小图像数据控制多个光源，使得一行子像素由从相应的一个光源发射的光束形成。