公开(公告)号：US20090180372A1

公开(公告)日：2009-07-16

申请号：US12128006

申请日：2008-05-28

申请人： An-sik JEONG ,  Jong-hyun Shin ,  In-joo Kim ,  Mu-kun An

发明人： An-sik JEONG ,  Jong-hyun Shin ,  In-joo Kim ,  Mu-kun An

IPC分类号： G11B7/00

CPC分类号： G11B7/1387 ,  G11B7/0908 ,  G11B7/0941

摘要： A near field optical recording/reproducing apparatus includes a light source, an objective lens to form a spot by focusing light emitted from the light source, a solid immersion lens to generate an evanescent wave by using the spot formed by the objective lens, a photodetector to measure an amplitude of a gap error signal that is totally reflected by the solid immersion lens, and an operating unit to generate a normalized gap error signal by using an amplitude of a driving signal applied to the light source and the amplitude of the gap error signal measured by the photodetector.

摘要翻译： 近场光学记录/再现装置包括光源，通过聚焦从光源发出的光来形成斑点的物镜，通过使用由物镜形成的斑点产生ev逝波的固体浸没透镜，光电检测器 测量由固体浸没透镜全反射的间隙误差信号的幅度，以及通过使用施加到光源的驱动信号的幅度和间隙误差的振幅来产生归一化间隙误差信号的操作单元 信号由光电检测器测量。

公开(公告)号：US20090154309A1

公开(公告)日：2009-06-18

申请号：US12180603

申请日：2008-07-28

申请人： An-sik JEONG ,  Jong-hyun Shin ,  Kyung-geun Lee ,  Tatsuhiro Otsuka

发明人： An-sik JEONG ,  Jong-hyun Shin ,  Kyung-geun Lee ,  Tatsuhiro Otsuka

IPC分类号： G11B7/00

CPC分类号： G11B7/0908 ,  G11B2007/13727

摘要： A gap pull-in method and an optical disc apparatus. Whether light condensed on a disc as an actuator ascends is near-field light is determined using a gap error signal. The range of an actuator driving voltage value during a section where the decrease rate of the gap error signal is constant is obtained when it is determined that the light condensed on the disc is near-field light. Gap pull-in is performed on the disc during a section where the actuator driving voltage value is within the obtained range.

摘要翻译： 间隙引入方法和光盘装置。 在作为执行器上升的光盘上的光聚光是使用间隙误差信号确定的近场光。 当确定在盘上聚光的光是近场光时，获得在间隙误差信号的减小率恒定的部分期间的致动器驱动电压值的范围。 在执行器驱动电压值在所获得的范围内的部分期间，在盘上执行间隙拉入。

公开(公告)号：US20090059752A1

公开(公告)日：2009-03-05

申请号：US12036474

申请日：2008-02-25

申请人： An-sik JEONG ,  Joon Jeong ,  Joong-gon Kim ,  Hyun-seok Yang ,  Chong-sam Chung ,  Noh-cheol Park ,  Kyung-geun Lee ,  Jin-kyung Lee ,  Jong-hyun Shin

发明人： An-sik JEONG ,  Joon Jeong ,  Joong-gon Kim ,  Hyun-seok Yang ,  Chong-sam Chung ,  Noh-cheol Park ,  Kyung-geun Lee ,  Jin-kyung Lee ,  Jong-hyun Shin

IPC分类号： G11B7/08 ,  G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/08511 ,  G11B7/0917

摘要： An optical disc apparatus, and a method of driving the same, includes a light focusing element disposed to focus light emitted from a light source onto a disc; an actuator to move the light focusing element toward or away from the disc according to a voltage applied to the actuator; a light intensity detection unit to detect the intensity of light reflected from the disc ; a servo unit to generate a gap error signal and a third voltage, the third voltage being the sum of a first voltage and a second voltage, and to apply the generated third voltage to the actuator; and a control unit to control the servo unit to perform a gap pull-in operation when the light focusing element is moved toward the disc according to the gap error signal and the third voltage.

摘要翻译： 光盘装置及其驱动方法包括：将从光源发射的光聚焦到光盘上的光聚焦元件; 致动器，用于根据施加到致动器的电压将光聚焦元件朝向或远离盘移动; 光度检测单元，用于检测从所述盘反射的光的强度; 产生间隙误差信号和第三电压的伺服单元，所述第三电压是第一电压和第二电压之和，并将所产生的第三电压施加到所述致动器; 以及控制单元，用于当所述光聚焦元件根据所述间隙误差信号和所述第三电压朝向所述盘移动时，控制所述伺服单元执行间隙拉入操作。

公开(公告)号：US20090190453A1

公开(公告)日：2009-07-30

申请号：US12267871

申请日：2008-11-10

申请人： Jin-kyung LEE ,  An-sik JEONG ,  Jong-hyun SHIN ,  Kyung-geun LEE

发明人： Jin-kyung LEE ,  An-sik JEONG ,  Jong-hyun SHIN ,  Kyung-geun LEE

IPC分类号： G11B20/18

CPC分类号： G11B7/0956 ,  G11B7/1387 ,  G11B2007/13727

摘要： In a near-field optical recording/reproducing system and a method of controlling a tilt, the near-field optical recording/reproducing system includes: a light source; an objective lens to focus light emitted from the light source to transmit near-field light to an information storage medium; a PD (photodetector) to receive a portion of the light that is transmitted from the objective lens to the information storage medium and is reflected from the information storage medium, to detect a GES (gap error signal) used for controlling an air gap formed between the objective lens and the information storage medium; a signal processor/determiner to obtain an edge voltage using the GES detected by the PD and determine a tilt control point using the edge voltage; and an adjuster to control a relative tilt between the objective lens and the information storage medium in the tilt control position.

摘要翻译： 在近场光记录/再现系统和控制倾斜的方法中，近场光学记录/再现系统包括：光源; 用于聚焦从光源发射的光以将近场光发射到信息存储介质的物镜; PD（光电检测器），用于接收从物镜传输到信息存储介质并被从信息存储介质反射的光的一部分，以检测用于控制形成的气隙的GES（间隙误差信号） 物镜和信息存储介质; 信号处理器/确定器，用于使用由PD检测的GES获得边沿电压，并使用边缘电压确定倾斜控制点; 以及调节器，用于在倾斜控制位置中控制物镜和信息存储介质之间的相对倾斜。

公开(公告)号：US20080165648A1

公开(公告)日：2008-07-10

申请号：US11855270

申请日：2007-09-14

申请人： An-sik JEONG ,  Jong-hyun Shin ,  Tatsuhiro Otsuka ,  Young-Jae Park ,  Sung-Hyun Kim

发明人： An-sik JEONG ,  Jong-hyun Shin ,  Tatsuhiro Otsuka ,  Young-Jae Park ,  Sung-Hyun Kim

IPC分类号： G11B5/09

CPC分类号： G11B7/00375 ,  G11B7/094

摘要： A method of improving a defect countermeasure of an apparatus for reproducing an optical information storage medium. The method includes generating a defect detection signal corresponding to a defect duration from an RF signal input from an optical pickup, outputting a servo hold signal by performing an AND operation of the defect detection signal and a predetermined pulse width modulation signal, and if reproduction fails in a servo hold on state, switching the servo hold on state to a servo hold off state, outputting the servo hold signal again by reflecting a time delay on a pulse width of the servo hold signal when entering into the defect duration again, and adding track and focus offsets to a held servo value of the time delayed servo hold on duration. Accordingly, a countermeasure of a case where normal data reading fails due to a defect can be improved.

摘要翻译： 一种改善用于再现光学信息存储介质的设备的缺陷对策的方法。 该方法包括从从光学拾取器输入的RF信号产生与缺陷持续时间对应的缺陷检测信号，通过执行缺陷检测信号和预定脉冲宽度调制信号的“与”运算，输出伺服保持信号，如果再现失败 在伺服保持打开状态下，将伺服保持打开状态切换到伺服保持关闭状态，通过在再次进入缺陷持续时间期间反映伺服保持信号的脉冲宽度上的时间延迟再次输出伺服保持信号，并且添加 跟踪和对焦偏移到时间延迟伺服保持持续时间的保持伺服值。 因此，可以提高由于缺陷导致正常数据读取失败的情况的对策。

公开(公告)号：US20080186815A1

公开(公告)日：2008-08-07

申请号：US11947055

申请日：2007-11-29

申请人： In-joo KIM ,  Tatsuhiro OTSUKA ,  An-sik JEONG

发明人： In-joo KIM ,  Tatsuhiro OTSUKA ,  An-sik JEONG

IPC分类号： G11B20/10

CPC分类号： G11B20/10009 ,  G11B20/10046

摘要： An optical disk reproducing apparatus to equalize and reproduce a signal optically read from an optical disk includes a controller to determine a number of regions to divide the optical disk into according to a reproduction frequency variation corresponding to a signal quality variation, and an equalizer to filter signals optically read from the divided regions with a cut-off frequency corresponding to the reproduction frequency variation.

摘要翻译： 用于对从光盘光学读取的信号进行均衡和再现的光盘再现装置包括：控制器，用于根据与信号质量变化相对应的再现频率变化来确定将光盘划分成多个区域;以及均衡器，以过滤 以与再现频率变化相对应的截止频率从分割区域光学读取的信号。

公开(公告)号：US20130308152A1

公开(公告)日：2013-11-21

申请号：US13684900

申请日：2012-11-26

申请人： An-sik JEONG

发明人： An-sik JEONG

IPC分类号： G06F3/12 ,  G01R1/30 ,  G01R19/00

CPC分类号： G06F3/12 ,  G01R1/30 ,  G01R19/0023 ,  G01R19/0053 ,  G01R19/0084 ,  G01R19/15 ,  G03G15/5004 ,  G03G15/80 ,  H02J9/005

摘要： Power supply device and an image forming apparatus having the power supply device are provided. The power supply device includes an input unit to input alternating current (AC) power, a converter to convert the input AC power to direct current (DC) power having a preset level and to output the DC power, and a sensor to be connected to the input unit in parallel and to sense whether the AC power has been input. The sensor includes a transformer to receive the AC power and to output a sensing signal having a level reduced more than a level of the AC power, and a resistor unit connected to the transformer in series so that a current of the AC power input into the transformer is lower than or equal to a preset current.

摘要翻译： 提供电源装置和具有电源装置的图像形成装置。 电源装置包括输入交流电（AC）电源的输入单元，将输入交流电力转换成具有预设电平的直流电（DC）电力并输出直流电力的转换器，以及要连接到 输入单元并联并且感测是否已经输入了交流电力。 该传感器包括一个变压器，用于接收交流电源并输出一个电平降低到交流电源电平以下的感测信号;以及电阻单元，串联连接到变压器，使得输入到 变压器低于或等于预设电流。

公开(公告)号：US20130142535A1

公开(公告)日：2013-06-06

申请号：US13617735

申请日：2012-09-14

申请人： An-sik JEONG ,  Yong-geun KIM

发明人： An-sik JEONG ,  Yong-geun KIM

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： An image forming apparatus having two or more different rated voltages, the image forming apparatus including a voltage detecting unit, which detects a voltage level of alternating current (AC) power supplied from outside of the image forming apparatus; a control unit, which outputs a control signal according to the detected voltage level; a fusion driving circuit, which controls a number of waveforms and phase of the AC power according to the control signal and outputs the controlled AC power as fusing power; and a fuser including a heat generating body having a negative temperature coefficient (NTC) characteristic, which receives the fusing power and generates resistance heat; and a heating member, which is heated by the heat generated by the resistance heat generating body and fuses an image formed on a printing medium.

摘要翻译： 一种具有两个或多个不同额定电压的图像形成装置，所述图像形成装置包括电压检测单元，其检测从所述图像形成装置的外部提供的交流电（AC）电压的电压电平; 控制单元，其根据检测到的电压电平输出控制信号; 融合驱动电路，其根据控制信号控制交流电力的数量波形和相位，并输出受控交流电力作为融合功率; 以及定影器，其包括具有负温度系数（NTC）特性的发热体，其接收所述定影功率并产生电阻热; 以及由电阻发热体产生的热量加热并加热形成在打印介质上的图像的加热构件。

公开(公告)号：US20110058826A1

公开(公告)日：2011-03-10

申请号：US12765094

申请日：2010-04-22

申请人： An-sik JEONG ,  Kyung-hwan So

发明人： An-sik JEONG ,  Kyung-hwan So

IPC分类号： G03G15/20 ,  H05B6/06

CPC分类号： G03G15/2007 ,  G03G15/5004

摘要： An apparatus to protect a half or full bridge circuit including a first switching unit and a second switching unit in an image forming apparatus performing induction heating, the apparatus including a switching control unit to control operations of the first switching unit and the second switching unit by generating and outputting a first driving signal to turn on or off the first switching unit and a second driving signal to turn on or off the second switching unit; and an arm-short detecting unit to output a disable signal to stop operation of the switching control unit in response to the first driving signal and the second driving signal simultaneously being signals to turn on the first switching unit and the second switching unit.

摘要翻译： 一种在执行感应加热的图像形成装置中保护包括第一切换单元和第二切换单元的半桥或全桥电路的装置，该装置包括切换控制单元，用于通过以下步骤控制第一切换单元和第二切换单元的操作： 产生并输出第一驱动信号以打开或关闭第一开关单元和第二驱动信号以接通或断开第二开关单元; 以及臂短路检测单元，用于响应于所述第一驱动信号和所述第二驱动信号同时输出禁止信号以停止所述开关控制单元的操作，以接通所述第一开关单元和所述第二开关单元。

公开(公告)号：US20130129367A1

公开(公告)日：2013-05-23

申请号：US13617980

申请日：2012-09-14

申请人： An-sik JEONG ,  Yong-geun Kim

发明人： An-sik JEONG ,  Yong-geun Kim

IPC分类号： G03G15/00 ,  H02M3/335

CPC分类号： H02M3/33507 ,  G03G15/80

摘要： A switching-mode power supply (SMPS) for an image forming apparatus which may prevent an overvoltage supplied to the SMPS, and damage to circuits in the SMPS in the image forming apparatus. The SMPS includes a rectifying circuit to rectify an alternating-current (AC) voltage input from an external power supply source into a direct-current (DC) voltage, a transformer to transform the rectified DC voltage input to a primary coil and output the transformed DC voltage to a secondary coil, a main switch that is connected to the primary coil and switches an output of the transformer, a first overvoltage detecting unit to determine whether the rectified DC voltage is an overvoltage by comparing the rectified DC voltage with a first reference voltage, and a switching control unit to control a switching operation of the main switch based on a result of the determination.

摘要翻译： 一种用于图像形成装置的开关模式电源（SMPS），其可以防止提供给SMPS的过电压，以及图像形成装置中的SMPS中的电路的损坏。 SMPS包括整流电路，用于将从外部电源输入的交流（AC）电压整流为直流（DC）电压，变压器将整流后的直流电压输入变换为初级线圈，并将变换后的 与次级线圈的直流电压，连接到初级线圈并切换变压器的输出的主开关，第一过电压检测单元，通过将整流的直流电压与第一参考值进行比较来确定整流的直流电压是否是过电压 电压和切换控制单元，以基于确定的结果来控制主开关的切换操作。