公开(公告)号：US07541768B2

公开(公告)日：2009-06-02

申请号：US11585258

申请日：2006-10-24

申请人： Soo-yong Kim ,  Yong-ha Hwang

发明人： Soo-yong Kim ,  Yong-ha Hwang

IPC分类号： H02P8/00

CPC分类号： H02P8/14 ,  H02P8/34 ,  H02P8/38

摘要： A step motor control circuit that does not fix a reference voltage of a step motor control signal. The step motor control circuit may include a digital-to-analog (DAC) signal generator configured to generate first and second DAC signals in response to a step motor error signal, a gain adjust block configured to control gains of the first and second DAC signals in response to a control signal and output first and second step motor control signals, and a gain controller configured to output the control signal in response to a mode signal and a gain control signal, in which the first and second step motor control signals are pulse trains including a reference voltage, and the reference voltage may be a fixed voltage when the mode signal indicates a normal mode and the reference voltage may be a variable voltage when the mode signal indicates a power consumption reduction mode.

摘要翻译： 步进电动机控制电路，其不固定步进电动机控制信号的参考电压。 步进电动机控制电路可以包括被配置为响应于步进电动机误差信号产生第一和第二DAC信号的数模（DAC）信号发生器，被配置为控制第一和第二DAC信号的增益的增益调整块 响应于控制信号并输出​​第一和第二步进电机控制信号，以及增益控制器，被配置为响应于模式信号和增益控制信号输出控制信号，其中第一和第二步进电动机控制信号是脉冲 包括参考电压的列车，并且当模式信号指示正常模式时，参考电压可以是固定电压，并且当模式信号指示功耗降低模式时，参考电压可以是可变电压。

公开(公告)号：US06816443B1

公开(公告)日：2004-11-09

申请号：US09537754

申请日：2000-03-30

申请人： Yong-Ha Hwang

发明人： Yong-Ha Hwang

IPC分类号： G11B700

CPC分类号： G11B19/12

摘要： An optical disc discrimination apparatus and method which discriminate a type of a disc loaded on a DVD-RAM drive accurately and simply. The optical disc discrimination apparatus includes an RF envelope generator which detects an envelope signal from an RF signal read from a disc loaded in an optical disc recording and/or reproducing apparatus at an off-track state, when only a focusing is accomplished prior to performing a tracking control, an envelope amplitude detector which detects the amplitude of the detected envelope signal, and a disc discriminator which compares the amplitude of the detected envelope signal with predetermined reference level and discriminating whether the disc is a CD, a DVD-ROM, or a DVD-RAM, based on the comparison result. Thus, a type of the disc can be discriminated simply and accurately with a change in the amplitude of the RF signal.

公开(公告)号：US06031799A

公开(公告)日：2000-02-29

申请号：US980204

申请日：1997-11-28

申请人： Yong-Ha Hwang

发明人： Yong-Ha Hwang

IPC分类号： G11B17/34 ,  G11B7/09 ,  G11B7/00

CPC分类号： G11B7/094 ,  G11B7/0901

摘要： A tracking balance correction apparatus includes a pickup unit which detects a beam reflected from an optical disc and outputs a high frequency reproduction signal and diagonal summing signals, a tracking balance correction unit which receives the diagonal summing signals output from the pickup unit, adjusts phases of the received diagonal summing signals to detect a differential phase, generates and outputs the detected differential phase as a tracking error signal, an envelope detection unit which detects an envelope of the RF signal output from the pickup unit to output an envelope signal, and a digital signal processor which receives the tracking error signal from the tracking balance correction unit, generates a tracking drive voltage to set the tracking error signal to zero, and controls tracking of the pickup unit, and at the same time generates a tracking balance correction voltage according to a maximum magnitude of the envelope signal input from the envelope detection unit, to then output the generated voltage to the tracking balance correction unit.

摘要翻译： 跟踪平衡校正装置包括拾取单元，其检测从光盘反射的光束并输出高频再现信号和对角线求和信号;跟踪平衡校正单元，其接收从拾取单元输出的对角线求和信号，调整相位 接收到的对角线求和信号以检测差分相位，产生并输出检测到的差分相位作为跟踪误差信号;包络检测单元，其检测从拾取单元输出的RF信号的包络线以输出包络信号;以及数字 信号处理器，其从跟踪平衡校正单元接收跟踪误差信号，产生跟踪驱动电压以将跟踪误差信号设置为零，并且控制拾取单元的跟踪，并且同时根据下述步骤产生跟踪平衡校正电压： 从包络检测单元输入的包络信号的最大幅度t o然后将产生的电压输出到跟踪平衡校正单元。

公开(公告)号：US5721718A

公开(公告)日：1998-02-24

申请号：US703727

申请日：1996-08-27

申请人： Yong-Ha Hwang

发明人： Yong-Ha Hwang

IPC分类号： G11B20/00 ,  G11B7/00 ,  G11B7/004 ,  G11B7/085 ,  G11B19/12 ,  G11B21/08

CPC分类号： G11B19/12 ,  G11B7/08541 ,  G11B7/08535

摘要： An apparatus and method for discriminating an optical disk includes a spindle motor for rotating the optical disk, an optical pickup device for picking up data recorded the disk, a servo signal processor for processing signals for tracking and focus servo of the optical pickup device by a prescribed control signal, and driving the spindle motor by an output signal of a digital signal processor. The digital signal processor shapes a track zero cross signal picked up from the optical pickup device to a logic waveform. A controller controls the operation of the digital signal processor, stores an optical disk discriminating reference value, generates a gate pulse when the disk is mounted, and compares a counted value of the track zero cross signal with the optical disk discriminating reference value to discriminate the type of disk being used. A counter is provided for counting the track zero cross waveform-shaped signal from the digital signal processor during a uniform velocity interval.

摘要翻译： 用于鉴别光盘的装置和方法包括用于旋转光盘的主轴电机，用于拾取记录盘的数据的光学拾取装置，用于处理光拾取装置的跟踪和聚焦伺服的信号的伺服信号处理器， 规定的控制信号，并通过数字信号处理器的输出信号驱动主轴电动机。 数字信号处理器将从光学拾取装置拾取的磁道零交叉信号形成逻辑波形。 控制器控制数字信号处理器的操作，存储光盘识别参考值，当安装盘时产生门脉冲，并将轨道零交叉信号的计数值与光盘鉴别参考值进行比较，以区分 正在使用的磁盘类型 提供了一个计数器，用于在均匀的速度间隔期间对来自数字信号处理器的轨迹零交叉波形信号进行计数。

公开(公告)号：US5557184A

公开(公告)日：1996-09-17

申请号：US100817

申请日：1993-08-02

申请人： Yong-Ha Hwang

发明人： Yong-Ha Hwang

IPC分类号： G11B19/02 ,  G11B19/20 ,  G11B19/247 ,  G11B19/28 ,  G05B1/06

CPC分类号： G11B19/247 ,  G11B19/20 ,  G11B19/28

摘要： A spindle motor controlling circuit for controlling the rotation of an optical disk system using a constant linear velocity servo. The circuit includes a spindle motor rotation sensing circuit for generating a phase frequency in response to the rotation of the spindle motor. A speed control part of the controlling circuit includes a speed error signal generating circuit that generates speed error data indicative of a difference between the period of the phase frequency and data representing a desired spindle motor speed. A phase control part of the control circuit includes a phase coefficient pulse generating circuit, a reference phase signal generating circuit and a phase error signal generating circuit. Finally, the controlling circuit includes a driving voltage generating circuit for generating a speed driving voltage corresponding to the speed error data and a phase driving voltage corresponding to the phase error signal. The driving voltages are used for driving the spindle motor.

摘要翻译： 一种主轴电机控制电路，用于使用恒定的线速度伺服来控制光盘系统的旋转。 电路包括主轴电机旋转感测电路，用于响应于主轴电动机的旋转产生相位频率。 控制电路的速度控制部分包括速度误差信号发生电路，该速度误差信号产生电路产生表示相位频率的周期与表示期望主轴电机速度的数据之间的差的速度误差数据。 控制电路的相位控制部分包括相位系数脉冲发生电路，参考相位信号发生电路和相位误差信号发生电路。 最后，控制电路包括用于产生对应于速度误差数据的速度驱动电压的驱动电压产生电路和对应于相位误差信号的相位驱动电压。 驱动电压用于驱动主轴电动机。

公开(公告)号：US5285141A

公开(公告)日：1994-02-08

申请号：US814613

申请日：1991-12-30

申请人： Yong-ha Hwang

发明人： Yong-ha Hwang

IPC分类号： G11B19/28 ,  H02P8/34 ,  H02P8/00

CPC分类号： H02P8/34 ,  G11B19/28

摘要： A circuit for controlling the velocity of the spindle motor in an electronic device using a disk is disclosed. Particularly, an abnormal rotation preventing circuit is disclosed which monitors the angular velocity of the spindle motor and forcibly controlls it to rotate within a predetermined velocity range when it deviates from the predetermined range. The duty value of a phase difference between two signals among first, second and third phase control signals for driving a three-phase motor is measured. Then, the phase difference is counted and the velocity is sampled. An abnormal rotation control signal is generated when the sampled velocity deviates from the predetermined range. The motor's velocity is then forcibly controlled so as not to deviate from the predetermined range, thereby preventing abnormal rotation of the motor.

摘要翻译： 公开了一种用于控制使用盘的电子设备中的主轴电动机的速度的电路。 特别地，公开了一种异常旋转防止电路，其监视主轴电机的角速度，并且当其偏离预定范围时强制地控制其在预定速度范围内旋转。 测量用于驱动三相电动机的第一，第二和第三相位控制信号中的两个信号之间的相位差的占空比值。 然后，对相位差进行计数，并对速度进行采样。 当采样速度偏离预定范围时，产生异常旋转控制信号。 然后强制地控制电动机的速度，以便不偏离预定范围，从而防止电动机的异常旋转。

公开(公告)号：US08309219B2

公开(公告)日：2012-11-13

申请号：US12881577

申请日：2010-09-14

申请人： Yong Ha Hwang ,  Jae Hyun Cho ,  Gyu Seok Song ,  Chang Beom Chung

发明人： Yong Ha Hwang ,  Jae Hyun Cho ,  Gyu Seok Song ,  Chang Beom Chung

IPC分类号： H01L21/48 ,  H01L21/78 ,  B32B7/12

CPC分类号： H01L21/6835 ,  C09J7/20 ,  C09J7/35 ,  C09J7/38 ,  C09J2201/36 ,  C09J2203/326 ,  H01L21/568 ,  H01L21/6836 ,  H01L23/3114 ,  H01L24/27 ,  H01L2221/68327 ,  H01L2221/68336 ,  H01L2221/6834 ,  H01L2224/16 ,  H01L2224/274 ,  H01L2224/29082 ,  H01L2224/73104 ,  H01L2224/83191 ,  H01L2924/00011 ,  H01L2924/00014 ,  H01L2924/0102 ,  H01L2924/01079 ,  Y10T428/2848 ,  H01L2924/3512 ,  H01L2924/00 ,  H01L2224/0401

摘要： A multifunction tape for a semiconductor package and configured to bond to a device-formed side of a semiconductor substrate having a plurality of devices thereon while performing a process of grinding a side of the semiconductor substrate opposite to the device-formed side and a process of dicing the semiconductor substrate into individual chips with a dicing tape having a UV-curable adhesive layer bonded to the ground side of the semiconductor substrate, the multifunction tape being bonded to the individual chips while the individual chips, separated from each other by the dicing process, are picked up and die-attached and a method of manufacturing a semiconductor device using the same, the multifunction tape including a base film; a UV-curable adhesive layer on one side of the base film; and first and second bonding layers on the adhesive layer.

摘要翻译： 一种用于半导体封装的多功能带，并且被配置为在其上具有多个器件的半导体衬底的器件形成侧上结合，同时进行研磨与器件形成侧相对的半导体衬底的侧面的工艺，以及 使用具有与半导体衬底的接地侧结合的可UV固化粘合剂层的切割带将半导体衬底切割成单个芯片，多功能带被粘合到各个芯片，而各个芯片通过切割工艺彼此分离 ，并且使用其制造使用该半导体器件的半导体器件的方法，所述多功能带包括基膜; 在基膜的一侧上的UV固化粘合剂层; 以及粘合剂层上的第一和第二粘结层。

公开(公告)号：US20100330780A1

公开(公告)日：2010-12-30

申请号：US12881577

申请日：2010-09-14

申请人： Yong Ha HWANG ,  Jae Hyun Cho ,  Gyu Seok Song ,  Chang Beom Chung

发明人： Yong Ha HWANG ,  Jae Hyun Cho ,  Gyu Seok Song ,  Chang Beom Chung

IPC分类号： H01L21/78 ,  B32B7/12

CPC分类号： H01L21/6835 ,  C09J7/20 ,  C09J7/35 ,  C09J7/38 ,  C09J2201/36 ,  C09J2203/326 ,  H01L21/568 ,  H01L21/6836 ,  H01L23/3114 ,  H01L24/27 ,  H01L2221/68327 ,  H01L2221/68336 ,  H01L2221/6834 ,  H01L2224/16 ,  H01L2224/274 ,  H01L2224/29082 ,  H01L2224/73104 ,  H01L2224/83191 ,  H01L2924/00011 ,  H01L2924/00014 ,  H01L2924/0102 ,  H01L2924/01079 ,  Y10T428/2848 ,  H01L2924/3512 ,  H01L2924/00 ,  H01L2224/0401

摘要： A multifunction tape for a semiconductor package and configured to bond to a device-formed side of a semiconductor substrate having a plurality of devices thereon while performing a process of grinding a side of the semiconductor substrate opposite to the device-formed side and a process of dicing the semiconductor substrate into individual chips with a dicing tape having a UV-curable adhesive layer bonded to the ground side of the semiconductor substrate, the multifunction tape being bonded to the individual chips while the individual chips, separated from each other by the dicing process, are picked up and die-attached and a method of manufacturing a semiconductor device using the same, the multifunction tape including a base film; a UV-curable adhesive layer on one side of the base film; and first and second bonding layers on the adhesive layer.

摘要翻译： 一种用于半导体封装的多功能带，并且被配置为在其上具有多个器件的半导体衬底的器件形成侧上结合，同时进行研磨与器件形成侧相对的半导体衬底的侧面的工艺， 使用具有与半导体衬底的接地侧结合的可UV固化粘合剂层的切割带将半导体衬底切割成单个芯片，多功能带被粘合到各个芯片，而各个芯片通过切割工艺彼此分离 ，并且使用其制造使用该半导体器件的半导体器件的方法，所述多功能带包括基膜; 在基膜的一侧上的UV固化粘合剂层; 以及粘合剂层上的第一和第二粘结层。

公开(公告)号：US20080160300A1

公开(公告)日：2008-07-03

申请号：US12005403

申请日：2007-12-27

申请人： Yong Ha Hwang ,  Gyu Seok Song ,  Hee Yeon Ki ,  Kyoung Jin Ha ,  Jae Hyun Cho ,  Jun Suk Kim ,  Chang Beom Chung

发明人： Yong Ha Hwang ,  Gyu Seok Song ,  Hee Yeon Ki ,  Kyoung Jin Ha ,  Jae Hyun Cho ,  Jun Suk Kim ,  Chang Beom Chung

IPC分类号： B32B7/12 ,  C08J3/28

CPC分类号： B32B7/12 ,  C08L33/14 ,  C08L75/04 ,  C08L2666/04 ,  C08L2666/18 ,  C09J7/20 ,  C09J133/08 ,  C09J2201/36 ,  C09J2203/326 ,  C09J2205/31 ,  C09J2433/00 ,  H01L21/6836 ,  H01L24/27 ,  H01L24/29 ,  H01L24/83 ,  H01L2221/68327 ,  H01L2224/274 ,  H01L2224/2919 ,  H01L2224/83191 ,  H01L2224/8385 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01012 ,  H01L2924/01018 ,  H01L2924/01027 ,  H01L2924/01033 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01082 ,  H01L2924/0665 ,  H01L2924/07802 ,  H01L2924/1461 ,  Y10T428/2809 ,  H01L2924/00 ,  H01L2924/3512

摘要： A composition, including a polymer binder resin A, a UV-curing acrylate B, a heat curing agent C, and a photopolymerization initiator D. The composition includes about 20 to about 150 parts by weight of the UV-curing acrylate B per 100 parts by weight of the polymer binder resin A, and the UV-curing acrylate B is a solid or near-solid at room temperature and has a viscosity of about 10,000 cps or more at 40° C.

摘要翻译： 包含聚合物粘合剂树脂A，UV固化丙烯酸酯B，热固化剂C和光聚合引发剂D的组合物。该组合物包含每100份约20至约150重量份的UV固化丙烯酸酯B 的聚合物粘合剂树脂A，并且UV固化丙烯酸酯B在室温下为固体或近固体，并且在40℃具有约10,000cps或更高的粘度

公开(公告)号：US5881081A

公开(公告)日：1999-03-09

申请号：US884637

申请日：1997-06-27

申请人： Yong-Ha Hwang

发明人： Yong-Ha Hwang

IPC分类号： G11B7/125 ,  G11B7/00 ,  H01S5/042 ,  H01S5/068 ,  H01S5/0683 ,  H01S3/096

CPC分类号： H01S5/0683

摘要： An automatic laser power control circuit comprises a laser diode package, a voltage adjusting unit and a polarity adjusting unit. The laser diode package emits laser light according to an applied voltage, and outputs an electric signal of a voltage proportional to the power of the emitted laser light. The voltage adjusting unit adjusts the voltage applied to said laser diode package based on the voltage of the electric signal outputted from said laser diode package. The polarity adjusting unit changes a polarity of the voltage of the electric signal outputted from said laser diode package so that the polarity is the same as that of the voltage applied to said laser diode package, and supplies the voltage having the changed polarity to said voltage adjusting unit. The automatic laser power control circuit provides an advantage that a monitor diode included in the laser diode package can be compatibly used regardless of its ground type.

摘要翻译： 一种自动激光功率控制电路，包括激光二极管封装，电压调节单元和极性调节单元。 激光二极管封装根据施加的电压发射激光，并输出与所发射的激光的功率成比例的电压的电信号。 电压调整单元基于从所述激光二极管封装输出的电信号的电压来调整施加到所述激光二极管封装的电压。 极性调整单元改变从所述激光二极管封装输出的电信号的电压的极性，使得极性与施加到所述激光二极管封装的电压的极性相同，并将具有改变的极性的电压提供给所述电压 调整单元 自动激光功率控制电路提供的优点在于，不管其地面类型如何，包括在激光二极管封装中的监视二极管可以被兼容地使用。