公开(公告)号：US06333762B1

公开(公告)日：2001-12-25

申请号：US09226130

申请日：1999-01-07

申请人： Joong-Sun Yoo ,  Chang-Wan Hong ,  Jong-Chul Choi ,  Yeon-Mo Jeong ,  Jae-Jun Lee

发明人： Joong-Sun Yoo ,  Chang-Wan Hong ,  Jong-Chul Choi ,  Yeon-Mo Jeong ,  Jae-Jun Lee

IPC分类号： H04N701

CPC分类号： G06T3/4007 ,  G09G1/16 ,  H04N7/0135

摘要： A scan format converter for converting a video format by bi-sigmoid interpolation. In the scan format converter, a memory controller has a look-up table at which first and second displacement values for pixel points of a video format to be converted are stored, controls transmission of color signals input from an external device, and reads the first and second displacement values for the pixel points of the color signals from the look-up table. A mode detector detects horizontal and vertical sync signals input from the external device and outputs a video format detection signal representing a mode of the currently input video format to the memory controller. A memory temporarily stores the color signals. A color signal logic circuit has a plurality of bi-sigmoid interpolation tables at which sigmoid interpolation values according to a color signal level difference between two pixel points are stored, and bi-sigmoid-interpolates the color signal levels of the input pixel points with respect to an x-axis and a y-axis according to the first and second displacement values input from the memory controller. A sync generator generates a sync signal to the color signal logic circuit.

摘要翻译： 一种用于通过双S形插值转换视频格式的扫描格式转换器。 在扫描格式转换器中，存储器控制器具有用于存储要转换的视频格式的像素点的第一和第二位移值的查找表，控制从外部设备输入的彩色信号的传输，并且读取第一 以及来自查找表的彩色信号的像素点的第二位移值。 模式检测器检测从外部设备输入的水平和垂直同步信号，并将表示当前输入的视频格式的模式的视频格式检测信号输出到存储器控制器。 存储器暂时存储颜色信号。 彩色信号逻辑电路具有多个双S形内插表，其中存储根据两个像素点之间的颜色信号电平差的S形内插值，并且双S形相互插入输入像素点的颜色信号电平 根据从存储器控制器输入的第一和第二位移值到x轴和y轴。 同步发生器产生到彩色信号逻辑电路的同步信号。

公开(公告)号：US08471877B2

公开(公告)日：2013-06-25

申请号：US12634239

申请日：2009-12-09

申请人： Jong-Chul Choi ,  Young-Jin Park ,  Jin-Ho Lee

发明人： Jong-Chul Choi ,  Young-Jin Park ,  Jin-Ho Lee

IPC分类号： G03G15/01 ,  B41J2/47

CPC分类号： G03G15/326 ,  B41J2/473 ,  G02B26/085 ,  G02B26/105 ,  G02B26/123 ,  G03G15/0435 ,  G03G2215/0158

摘要： Disclosed is an image forming apparatus capable of, and a method of, correcting a color registration error. The image forming apparatus corrects a color registration error by adjusting a scan start time of, and/or the distance in a sub-scanning direction between, multiple light beams that are scanned by a light scanning unit onto several photosensitive media.

摘要翻译： 公开了能够进行颜色配准误差校正的图像形成装置和校正方法。 图像形成装置通过将由光扫描单元扫描的多个光束之间的扫描开始时间和/或在副扫描方向上的距离调整到多个光敏介质上来校正颜色配准误差。

公开(公告)号：US20060087619A1

公开(公告)日：2006-04-27

申请号：US10510281

申请日：2003-04-04

申请人： Dae-sik Kim ,  Yung-Jun Park ,  Kun-Ho Cho ,  Hee-Joona Lee ,  Chong-Sam Chung ,  Jong-Chul Choi ,  Tae-Hee Kim

发明人： Dae-sik Kim ,  Yung-Jun Park ,  Kun-Ho Cho ,  Hee-Joona Lee ,  Chong-Sam Chung ,  Jong-Chul Choi ,  Tae-Hee Kim

IPC分类号： G03B21/00

CPC分类号： G02B3/06 ,  F21V7/0025 ,  F21V11/08 ,  F21V11/16 ,  G02B26/0875 ,  G02B27/1033 ,  G02B27/1053 ,  G02B27/1086 ,  G02B27/148 ,  G03B21/005 ,  G03B21/2066 ,  G03B21/208 ,  H04N9/3117 ,  H04N9/3152

摘要： A highly efficient lighting system, a scrolling unit, and a projection system adopting the highly efficient lighting system and the scrolling unit are provided. The scrolling unit has at least one lens cell. From the viewpoint of light incident upon the at least one lens cell, the rotation of the at least one lens cell is converted into a rectilinear motion of a lens array, such that incident light is scrolled. The projection system includes a light source, an optical splitter, at least one scrolling unit, and a light valve. The optical splitter splits light emitted from the light source according to wavelenght. The at least one scrolling unit has at least one lens cell. The lens cell has an incident side and an emitting side and divides incident light into light beams. The rotation of the lens cell causes a rectilinear motion of the light beams, thereby scrolling incident light. The light emitted from the light source is separated into color beams by the optical splitter and the scrolling unit, and the color beams are focused on the light valve. The light valve processes incident light according to an input image signal in order to form a color image.

摘要翻译： 提供了一种高效率的照明系统，滚动单元和采用高效照明系统和滚动单元的投影系统。 滚动单元具有至少一个透镜单元。 从入射到至少一个透镜单元的光的角度来看，将至少一个透镜单元的旋转转换成透镜阵列的直线运动，使得入射光被滚动。 投影系统包括光源，光分路器，至少一个滚动单元和光阀。 光分路器根据波长分离从光源发射的光。 至少一个滚动单元具有至少一个透镜单元。 透镜单元具有入射侧和发射侧，并将入射光分为光束。 透镜单元的旋转导致光束的直线运动，从而滚动入射光。 从光源发射的光被分光器和滚动单元分离成彩色光束，并且彩色光束聚焦在光阀上。 光阀根据输入图像信号处理入射光，以形成彩色图像。

公开(公告)号：US08570633B2

公开(公告)日：2013-10-29

申请号：US12511688

申请日：2009-07-29

申请人： Hee-Moon Jeong ,  Jin-Ho Lee ,  Jun-O Kim ,  Jong-Chul Choi

发明人： Hee-Moon Jeong ,  Jin-Ho Lee ,  Jun-O Kim ,  Jong-Chul Choi

IPC分类号： G02B26/08

CPC分类号： G02B26/085 ,  G02B26/105 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0082

摘要： Disclosed are several embodiments of a micro-electro-mechanical systems (MEMS) mirror and a mirror scanner employing the same. An optical scanning unit employing such mirror scanner and an image forming apparatus including the optical scanning unit are also disclosed. The MEMS mirror may include a movable unit, which may in turn include a mirror portion and a magnet frame portion. The mirror portion may have mirror surfaces on the face surface(s) thereof. The magnet frame portion may include an opening into which a magnet is received. The MEMS mirror may also include a first fixing end and a second fixing end, to which the moving unit may be elastically supported by one or more elastic members that allows oscillating or pivoting movement of the moving unit.

摘要翻译： 公开了微机电系统（MEMS）反射镜和使用其的反射镜扫描仪的若干实施例。 还公开了采用这种镜像扫描仪的光学扫描单元和包括光学扫描单元的图像形成设备。 MEMS反射镜可以包括可移动单元，其可以依次包括镜部分和磁体框架部分。 镜部分可以在其表面上具有镜面。 磁体框架部分可以包括接收磁体的开口。 MEMS反射镜还可以包括第一固定端和第二固定端，移动单元可以由允许移动单元的摆动或枢转运动的一个或多个弹性构件弹性支撑到该固定端。

公开(公告)号：US07367677B2

公开(公告)日：2008-05-06

申请号：US10510281

申请日：2003-04-04

申请人： Dae-Sik Kim ,  Yung-Jun Park ,  Kun-Ho Cho ,  Hee-Joong Lee ,  Chong-Sam Chung ,  Jong-Chul Choi ,  Tae-Hee Kim

发明人： Dae-Sik Kim ,  Yung-Jun Park ,  Kun-Ho Cho ,  Hee-Joong Lee ,  Chong-Sam Chung ,  Jong-Chul Choi ,  Tae-Hee Kim

IPC分类号： G03B21/14

CPC分类号： G02B3/06 ,  F21V7/0025 ,  F21V11/08 ,  F21V11/16 ,  G02B26/0875 ,  G02B27/1033 ,  G02B27/1053 ,  G02B27/1086 ,  G02B27/148 ,  G03B21/005 ,  G03B21/2066 ,  G03B21/208 ,  H04N9/3117 ,  H04N9/3152

摘要： A highly efficient lighting system, a scrolling unit, and a projection system adopting the highly efficient lighting system and the scrolling unit are provided. The scrolling unit has at least one lens cell. From the viewpoint of light incident upon the at least one lens cell, the rotation of the at least one lens cell is converted into a rectilinear motion of a lens array, such that incident light is scrolled. The projection system includes a light source, an optical splitter, at least one scrolling unit, and a light valve. The optical splitter splits light emitted from the light source according to wavelength. The at least one scrolling unit has at least one lens cell. The lens cell has an incident side and an emitting side and divides incident light into light beams. The rotation of the lens cell causes a rectilinear motion of the light beams, thereby scrolling incident light. The light emitted from the light source is separated into color beams by the optical splitter and the scrolling unit, and the color beams are focused on the light valve. The light valve processes incident light according to an input image signal in order to form a color image.

摘要翻译： 提供了一种高效率的照明系统，滚动单元和采用高效照明系统和滚动单元的投影系统。 滚动单元具有至少一个透镜单元。 从入射到至少一个透镜单元的光的角度来看，将至少一个透镜单元的旋转转换成透镜阵列的直线运动，使得入射光被滚动。 投影系统包括光源，光分路器，至少一个滚动单元和光阀。 光分路器根据波长分离从光源发射的光。 至少一个滚动单元具有至少一个透镜单元。 透镜单元具有入射侧和发射侧，并将入射光分为光束。 透镜单元的旋转导致光束的直线运动，从而滚动入射光。 从光源发射的光被分光器和滚动单元分离成彩色光束，并且彩色光束聚焦在光阀上。 光阀根据输入图像信号处理入射光，以形成彩色图像。

公开(公告)号：US06943756B1

公开(公告)日：2005-09-13

申请号：US09628168

申请日：2000-07-28

申请人： Jong-Chul Choi

发明人： Jong-Chul Choi

IPC分类号： G02F1/13 ,  G09F9/00 ,  G09G3/00 ,  H04N5/74 ,  H04N9/31

CPC分类号： H04N9/3126 ,  H04N9/3182

摘要： A device for enhancing contrast for a liquid crystal display (LCD) projection system is provided. The contrast enhancing device includes an image driver supplying an image signal, a LCD panel for converting the input image signal into an optical image signal, and a contrast control portion positioned on the same optical axis as that of the LCD panel, for controlling an amount of scanned light according to the brightness of a corresponding image. Accordingly, the projection system adopting an image display device as a liquid crystal device provides a remarkably enhanced contrast enhancement effect. In particular, as the brightness of the total image is brighter, the contrast enhancement effect becomes larger.

摘要翻译： 提供了一种用于增强液晶显示（LCD）投影系统的对比度的装置。 对比度增强装置包括提供图像信号的图像驱动器，用于将输入图像信号转换为光学图像信号的LCD面板和位于与LCD面板相同的光轴上的对比度控制部分，用于控制量 根据相应图像的亮度进行扫描。 因此，采用图像显示装置作为液晶装置的投影系统提供显着增强的对比度增强效果。 特别地，随着总图像的亮度更亮，对比度增强效果变大。

公开(公告)号：US20100118682A1

公开(公告)日：2010-05-13

申请号：US12528163

申请日：2007-08-28

申请人： Moon-Il Jung ,  Jong-Chul Choi ,  Taek-Seong Jeong

发明人： Moon-Il Jung ,  Jong-Chul Choi ,  Taek-Seong Jeong

IPC分类号： G11B7/135 ,  G11B7/004

CPC分类号： G11B7/0065 ,  G03H1/26 ,  G03H1/265 ,  G03H2001/0224 ,  G11B7/083 ,  G11B7/128

摘要： Provided is an apparatus and method for recording data on a holographic storage medium. The apparatus includes: a light a light processing unit comprising the holographic storage medium and a light modulator, and recording data on the holographic storage medium using a reference beam and a signal beam modulated by the light modulator; and a control unit controlling the light processing unit to record the data on the holographic storage medium, wherein the light modulator is arranged so that an image formed on a surface of the light modulator is shorter in a radial direction that is a scanning direction of the reference beam than in a tangential direction that is perpendicular to the radial direction.

摘要翻译： 提供了一种用于在全息存储介质上记录数据的装置和方法。 该装置包括：光源，包括全息存储介质和光调制器的光处理单元，以及使用参考光束和由光调制器调制的信号光束在全息存储介质上记录数据; 以及控制单元，其控制所述光处理单元将所述数据记录在所述全息存储介质上，其中所述光调制器被布置为使得形成在所述光调制器的表面上的图像在作为所述光调制器的扫描方向的径向方向上较短 参考光束比垂直于径向方向的切线方向。

公开(公告)号：US08134584B2

公开(公告)日：2012-03-13

申请号：US12558006

申请日：2009-09-11

申请人： Jong-Chul Choi ,  Jun-O Kim ,  Jin-Ho Lee ,  Hee-Moon Jeong

发明人： Jong-Chul Choi ,  Jun-O Kim ,  Jin-Ho Lee ,  Hee-Moon Jeong

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： G03G15/04036 ,  G03G15/011 ,  G03G15/0435 ,  G03G15/326

摘要： Disclosed are an image forming apparatus capable of, and method of, improving color registration. The image forming apparatus can employ a beam deflector having a double-sided mirror portion that pivots to bi-directionally scan multiple light beams on multiple photosensitive media at different phases by using both mirror sides of the double-sided mirror portion. The individual monochromic images developed on the photosensitive media are transferred onto a transfer medium to overlap one another in phase to form a full color image.

摘要翻译： 公开了一种能够改善颜色配准的图像形成装置和方法。 图像形成装置可以使用具有双面反射镜部分的光束偏转器，该双面镜部分通过使用双面镜部分的两个镜面而枢转以在不同相位的多个光敏介质上双向扫描多个光束。 在光敏介质上显影的单个单色图像被转印到转印介质上以相互重叠以形成全色图像。

公开(公告)号：US08121009B2

公开(公告)日：2012-02-21

申请号：US12528163

申请日：2007-08-28

申请人： Moon-Il Jung ,  Jong-Chul Choi ,  Taek-Seong Jeong

发明人： Moon-Il Jung ,  Jong-Chul Choi ,  Taek-Seong Jeong

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G03H1/26 ,  G03H1/265 ,  G03H2001/0224 ,  G11B7/083 ,  G11B7/128

摘要： An apparatus and method to record data on a holographic storage medium, the apparatus including: a light processing unit to record the data on the holographic storage medium using a reference beam and a signal beam, the light processing unit including a light modulator to modulate the signal beam; and a control unit to control the light processing unit to record the data on the holographic storage medium, wherein the light modulator modulates the signal beam so that an image formed on a surface of the light modulator is shorter in a radial direction that is a scanning direction of the reference beam than in a tangential direction that is perpendicular to the radial direction.

摘要翻译： 一种在全息存储介质上记录数据的装置和方法，所述装置包括：光处理单元，用于使用参考光束和信号光束在全息存储介质上记录数据，所述光处理单元包括光调制器， 信号光束 以及控制单元，用于控制光处理单元将数据记录在全息存储介质上，其中光调制器调制信号光束，使得形成在光调制器的表面上的图像在扫描的径向方向上较短 参考光束的方向比垂直于径向方向的切线方向。