公开(公告)号：US20060067749A1

公开(公告)日：2006-03-30

申请号：US11214845

申请日：2005-08-31

Applicant: Hwan-guem Kim ,  Joong-gi Kwon ,  Durk-hyun Cho ,  Young-min Chae ,  Sang-yong Han

Inventor： Hwan-guem Kim ,  Joong-gi Kwon ,  Durk-hyun Cho ,  Young-min Chae ,  Sang-yong Han

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A fixing device of an image forming apparatus includes a fixing roller rotatably mounted on a moving path of a printing medium having a toner image transferred thereon to fuse the toner image on the printing medium, a heater mounted in the fixing roller to generate a magnetic field by applied voltage, thus heating the fixing roller, and at least one magnetic core disposed around the fixing roller to concentrate, onto the fixing roller, the magnetic field generated by driving the heater. Accordingly, a density difference of the magnetic field generated by the heater is minimized by disposing the at least one magnetic core around the fixing rollers, thus enabling a uniform fixing temperature.

Abstract translation: 图像形成装置的定影装置包括：定影辊，其可旋转地安装在其上转印有调色剂图像的打印介质的移动路径上，以将打印介质上的调色剂图像熔合;安装在定影辊中的加热器，以产生磁场 通过施加电压，从而加热定影辊，以及设置在定影辊周围的至少一个磁芯，以将定影辊上的浓度集中在通过驱动加热器而产生的磁场。 因此，通过将至少一个磁芯设置在定影辊周围，由加热器产生的磁场的密度差被最小化，从而能够实现均匀的定影温度。

公开(公告)号：US06236799B1

公开(公告)日：2001-05-22

申请号：US09324917

申请日：1999-06-03

Applicant: Chin-kyu Huh ,  Sang-yong Han ,  Si-ken Lee ,  Jae-eun Yoo

Inventor： Chin-kyu Huh ,  Sang-yong Han ,  Si-ken Lee ,  Jae-eun Yoo

IPC: G02B600

CPC classification number: G02F1/011 ,  G02F1/1326 ,  Y10S385/901

Abstract: A flat-panel display device using an optical waveguide includes a light source for emitting light, a plurality of optical waveguides into which light emitted from the light source is incident, an optical waveguide arrangement substrate on which the plurality of optical waveguides are arranges and made of a material having a low refractive index so as to totally reflect the light transmitted through the plurality of optical waveguides, a light output controller positioned on the plurality of optical waveguides and made of a material whose refractive index changes according to an electric field, a light output portion positioned on the light output controller, for refracting the light having passed through the light output controller when the light propagated through the plurality of optical waveguides due to the electric field is transmitted through the light output controller and is output therefrom, and outputting the same to the outside, a first electrode positioned on the light output portion, made of a transparent conductive material, and to which a predetermined control voltage is applied, a second electrode positioned under the light output controller, made of a conductive material, and which forms an electric field in conjunction with the first electrode, and a driver for applying the predetermined control voltage to the first and second electrodes. Therefore, the resolution of a reproduced image can be greatly enhanced, the light efficiency is very high and the viewing angle is increased.

Abstract translation: 使用光波导的平板显示装置包括用于发光的光源，从光源发射的光入射到其上的多个光波导，配置有多个光波导的光波导配置基板 具有低折射率的材料以便完全反射透过多个光波导的光;光输出控制器，其位于多个光波导上，并且由折射率根据电场变化的材料制成， 位于光输出控制器上的光输出部分，当由于电场传播通过多个光波导的光被透射通过光输出控制器并从其输出时，用于折射已经通过光输出控制器的光，并输出 与外部相同，位于光源外的第一电极 由透明导电材料制成，并且施加预定控制电压的第二电极，位于光输出控制器下方的由导电材料制成并与第一电极结合形成电场的第二电极，以及 用于将预定控制电压施加到第一和第二电极的驱动器。 因此，可以大大提高再现图像的分辨率，光效率非常高，视角增大。

公开(公告)号：US08353056B2

公开(公告)日：2013-01-08

申请号：US12067665

申请日：2007-10-30

Applicant: Sang Yong Han ,  Sung Yun Park

Inventor： Sang Yong Han ,  Sung Yun Park

IPC: G06F9/44 ,  G06F17/40 ,  G06F7/04

CPC classification number: G06F21/12 ,  G06F2221/2101

Abstract: An apparatus and method for detecting program plagiarism through memory access log analysis is provided. A data extractor extracts an access log of an original program and an access log of a target program to be compared with the original program from a memory accessed by the programs. A common string detector enumerates values, which are obtained from the access logs extracted from the original program and the target program, into strings and detects a common string that commonly exists in the strings. A discontinuity calculator calculates a discontinuity value that indicates a distance between the strings by using an array of the detected common strings. A plagiarism determining unit determines that the target program is plagiarized if the calculated discontinuity value is less than a predetermined reference value.

Abstract translation: 提供了一种通过存储器访问日志分析来检测程序剽窃的装置和方法。 数据提取器从程序访问的存储器中提取要与原始程序进行比较的原始程序的访问日志和目标程序的访问日志。 常见的字符串检测器将从原始程序和目标程序提取的访问日志中获取的值列入字符串，并检测字符串中通常存在的公共字符串。 不连续计算器通过使用检测到的公共串的阵列来计算指示字符串之间的距离的不连续值。 如果所计算的不连续性值小于预定参考值，则剽窃确定单元确定目标节目被剽窃。

公开(公告)号：US08180241B2

公开(公告)日：2012-05-15

申请号：US13174927

申请日：2011-07-01

Applicant: Young-min Chae ,  Sang-yong Han ,  Joong-gi Kwon ,  Se-joong Kim ,  Jun-seok Cho

Inventor： Young-min Chae ,  Sang-yong Han ,  Joong-gi Kwon ,  Se-joong Kim ,  Jun-seok Cho

IPC: G03G15/20

CPC classification number: G03G15/205 ,  G03G15/2039

Abstract: An image forming apparatus includes a power supply unit that controls a level of electrical power supplied to the heating lamp during a warm-up of the heating unit that involves at least a first warm-up stage. During the first warm-up stage, when power begins to be supplied to the heating lamp, the power supply unit gradually increases a level of power supplied to the heating lamp from zero to a defined supply level according to a phase control of an alternating current (AC) of the source power. If a second warm-up stage is included, during the second warm-up stage, the power supply unit may maintain the level of power supplied to the heating lamp at the defined supply level until the measured surface temperature of the heating unit has reached a defined target temperature.

Abstract translation: 图像形成装置包括：电源单元，其控制在至少涉及第一预热阶段的加热单元的预热期间提供给加热灯的电力水平。 在第一预热阶段期间，当电力开始供应到加热灯时，电源单元根据交流电的相位控制逐渐增加供应给加热灯的功率从零到定义的电源电平 （AC）源功率。 如果包括第二预热阶段，则在第二预热阶段期间，供电单元可以将提供给加热灯的功率水平保持在规定的供应水平，直到加热单元的测量的表面温度达到 定义目标温度。

公开(公告)号：US08032045B2

公开(公告)日：2011-10-04

申请号：US11302362

申请日：2005-12-14

Applicant: Young-min Chae ,  Sang-yong Han ,  Hwan-guem Kim ,  Durk-hyun Cho ,  Su-Kyoung Chae

Inventor： Young-min Chae ,  Sang-yong Han ,  Hwan-guem Kim ,  Durk-hyun Cho ,  Su-Kyoung Chae

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/80

Abstract: A device for fusing and fixing a transferred toner of a predetermined image onto a print paper is provided. In particular, a fusing device which can instantly control induced current provided to a fusing unit in an image printing apparatus which heats the fusing unit using the induced current is provided. The fusing device includes a fusing unit which is resistance heated or induction heated by an induced current, and fuses the toner onto the print paper using the generated heat. A sensing unit senses the temperature of the fusing unit. A reference current generating unit generates a predetermined reference current to heat the fusing unit to reach a predetermined temperature based on the temperature of the sensed fusing unit and the reference temperature. A pulse width modulation signal generating unit generates a pulse width modulation signal for generating the induced current so that the induced current corresponding to the reference current is supplied to the fusing unit.

Abstract translation: 提供了将预定图像的转印调色剂熔合并固定到打印纸上的装置。 特别地，提供了一种可以立即控制提供给使用感应电流加热定影单元的图像打印设备中的定影单元的感应电流的定影装置。 定影装置包括一个由感应电流加热或感应加热的定影单元，并使用所产生的热量将调色剂熔合到打印纸上。 感测单元感测定影单元的温度。 参考电流产生单元产生预定的参考电流，以根据感测的定影单元的温度和基准温度来加热定影单元达到预定温度。 脉冲宽度调制信号产生单元产生用于产生感应电流的脉冲宽度调制信号，使得与参考电流相对应的感应电流被提供给定影单元。

公开(公告)号：US20110170885A1

公开(公告)日：2011-07-14

申请号：US13064384

申请日：2011-03-22

Applicant: Jun-Seok Cho ,  Sang-yong Han

Inventor： Jun-Seok Cho ,  Sang-yong Han

IPC: G03G15/00

CPC classification number: H02M3/33561 ,  H02M3/28 ,  Y10T307/25

Abstract: A power supply, which outputs a plurality of voltages in order to improve the cross regulation between output voltages and at the same time reduce the amount of electric power consumed, and an image forming device having the same are disclosed. The power supply includes a power converter, which generates a first output power source and a second output power source in response to an external power supply and a power control signal, respectively; a power output part, which includes output parts to rectify and smooth each of the first and second output power sources; a first output controller, which receives the first output power source feedback from the power output part to generate the power control signal; and a second output controller, which receives the second output power source feedback from the power output part to control to operate the power output part in stable mode.

公开(公告)号：US20090129809A1

公开(公告)日：2009-05-21

申请号：US12353415

申请日：2009-01-14

Applicant: Young-min CHAE ,  Joong-gi KWON ,  Chul-woo OH ,  Jong-hwa CHO ,  Sang-yong HAN

Inventor： Young-min CHAE ,  Joong-gi KWON ,  Chul-woo OH ,  Jong-hwa CHO ,  Sang-yong HAN

IPC: G03G15/00

CPC classification number: G03G15/80 ,  G03G2215/00978 ,  Y10T307/852 ,  Y10T307/858

Abstract: An apparatus to generate a high voltage includes a switching part to control a voltage induced in a secondary coil of a power transforming part, by interrupting a current in a primary coil of the power transforming part, a digital controlling part to control the interruption operation of the switching part according to supplied control data. The switching part, the digital interfacing part and the digital controlling part may be embodied in an ASIC chip (application-specific integrated circuit). An optimum control according to an output state of the apparatus is easily achieved, manufacturing time for tuning each parameter is reduced and heat generation in the apparatus is reduced.

Abstract translation: 用于产生高电压的装置包括：开关部分，通过中断功率变换部分的初级线圈中的电流来控制功率变换部分的次级线圈中感应的电压;数字控制部分，用于控制功率变换部分的中断操作; 切换部分根据提供的控制数据。 开关部分，数字接口部分和数字控制部分可以体现在ASIC芯片（专用集成电路）中。 根据装置的输出状态的最佳控制容易实现，用于调整每个参数的制造时间减少，并且减少了装置中的发热。

公开(公告)号：US20060176717A1

公开(公告)日：2006-08-10

申请号：US11344093

申请日：2006-02-01

Applicant: Young-min Chae ,  Joong-gi Kwon ,  Chul-woo Oh ,  Jong-hwa Cho ,  Sang-yong Han

Inventor： Young-min Chae ,  Joong-gi Kwon ,  Chul-woo Oh ,  Jong-hwa Cho ,  Sang-yong Han

IPC: H02M1/12

CPC classification number: H02M3/33538

Abstract: An analog control application specific integrated circuit (ASIC) apparatus for a high voltage power supply (HVPS) in an image for apparatus, and a method for controlling the HVPS are provided. The HVPS includes a transformer transforming an AC signal to a high voltage signal and a voltage doubler outputting a DC high voltage for the HVPS. The ASIC includes an analog control circuit configured as a one-chip ASIC that converts a predetermined DC level signal to a high frequency switching signal using a switching component and outputs the converted high frequency switching signal to a primary winding of the transformer. If the high voltage output signal output from the voltage doubler is not feedbacked, the switching component high frequency switches a received driving signal of a gate driver, and outputs the high frequency switched signal to the transformer.

Abstract translation: 提供了一种用于装置的图像中的高压电源（HVPS）的模拟控制专用集成电路（ASIC）装置和用于控制HVPS的方法。 HVPS包括将AC信号变换为高电压信号的变压器和为HVPS输出DC高电压的倍压器。 ASIC包括配置为单芯片ASIC的模拟控制电路，其使用开关部件将预定的DC电平信号转换为高频开关信号，并将转换的高频切换信号输出到变压器的初级绕组。 如果不反馈从倍压器输出的高电压输出信号，则开关元件高频开关接收到栅极驱动器的驱动信号，并将高频开关信号输出到变压器。

公开(公告)号：US20060124630A1

公开(公告)日：2006-06-15

申请号：US11299631

申请日：2005-12-13

Applicant: Young-Min Chae ,  Hwan-Guem Kim ,  Durk-Hyun Cho ,  Su-Kyoung Chae ,  Sang-Yong Han

Inventor： Young-Min Chae ,  Hwan-Guem Kim ,  Durk-Hyun Cho ,  Su-Kyoung Chae ,  Sang-Yong Han

IPC: H05B6/14

CPC classification number: H05B6/145 ,  G03G15/2039 ,  G03G15/80

Abstract: A fusing apparatus in an image forming apparatus that heats a fusing unit by applying an induced current is provided. The flicker characteristics of the fusing apparatus are improved by gradually increasing the amount of induced current applied to the fusing unit for a predetermined amount of time so that the amount of induced current applied to the fusing unit is prevented from severely varying. The fusing apparatus comprises a fusing unit which is resistance-heated or induction-heated by applying an induced current and fuses toner onto paper using the heat. The fusing apparatus further comprises a pulse width modulation (PWM) signal generation unit which generates a PWM signal in response to the ON signal so that the amount of induced current input to the fusing unit gradually increases to a reference current.

公开(公告)号：US20060045587A1

公开(公告)日：2006-03-02

申请号：US11178296

申请日：2005-07-12

Applicant: Durk-hyun Cho ,  Sang-yong Han ,  Joong-gi Kwon ,  Hwan-guem Kim ,  Young-min Chae

Inventor： Durk-hyun Cho ,  Sang-yong Han ,  Joong-gi Kwon ,  Hwan-guem Kim ,  Young-min Chae

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A fusing roller and a fusing apparatus having the same are provided. The fusing roller includes: an induced coil, which generates an alternating magnetic flux that varies depending on an input alternating current; a heating roller, which is heated by an eddy current that is generated by the alternating magnetic flux; and a compensator, which compensates for the eddy current generated where it is located

Abstract translation: 提供了一种定影辊和具有该定影辊的定影装置。 定影辊包括：感应线圈，其产生根据输入交流电变化的交变磁通量; 加热辊，其被由交流磁通产生的涡流加热; 和一个补偿器，补偿它所在的涡流产生的位置