公开(公告)号：US07023767B2

公开(公告)日：2006-04-04

申请号：US10143756

申请日：2002-05-14

申请人： Wen-Yi Wu ,  Jin-Chuan Hsu ,  Bruce Hsu

发明人： Wen-Yi Wu ,  Jin-Chuan Hsu ,  Bruce Hsu

IPC分类号： G11B7/095

CPC分类号： G11B7/0945 ,  G11B7/0903 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0956

摘要： A gain calibration device and method for differential push-pull (DPP) tracking error signals in an optical storage system is provided. The gain calibration method processes the synthesized gain (SPPG) of the sub beam in the DPP tracking error signal components with respect to the main beam. The calibration theorem resides in controlling the objective lens of the pick-up head to form a lens-shift or controlling the tilt of the objective lens relative to the optical disc to make the synthesized DPP tracking error signals generate a correspondingly signal variation owing to the optical path deviation. The synthesized gain is calibrated to make the signal variation a minimum value, and the calibrated synthesized gain is the optimum value. In the method and device of the invention, the optimum synthesized gain of the sub beam is precisely computed without the assumptions of equal intensity of the two sub beams and symmetrical positions of the two sub beams with respect to the main beam, and without knowing the ratio of the pitch between the two sub beams to the track pitch.

公开(公告)号：US20050207297A1

公开(公告)日：2005-09-22

申请号：US11122060

申请日：2005-05-05

申请人： Chao-Long Tsai ,  Chi-Kwong Ho ,  Jin-Chuan Hsu

发明人： Chao-Long Tsai ,  Chi-Kwong Ho ,  Jin-Chuan Hsu

IPC分类号： G11B7/005 ,  G11B7/085 ,  G11B27/24 ,  G11B27/30 ,  G11B7/24

CPC分类号： G11B27/3027 ,  G11B7/0053 ,  G11B7/08529 ,  G11B27/24

摘要： A device and method for calibrating linear velocity and track pitch for an optical disc is disclosed. The device comprises a frequency divider, a synchronous bit-clock generator, a counter and a linear velocity and track pitch calculator. The frequency divider receives a motor frequency generator (FG) pulse and generates a motor rotation period signal (FG/X). The synchronous bit-clock generator generates a high frequency bit-clock according to a reproduced signal read from disc. The bit counter counts the pulse of the bit-clock for each period of the motor rotation period signal to generate the data amount M. The linear velocity and track pitch calculator calculates the linear velocity by a linear velocity function with the information of the data amount M and the motor rotation period. Then, the linear velocity and track pitch calculator calculates the track pitch by a pitch function with the information of the data amount, radius and linear velocity at different tracks.

摘要翻译： 公开了一种用于校准光盘的线速度和轨道间距的装置和方法。 该装置包括分频器，同步位时钟发生器，计数器和线速度和轨道间距计算器。 分频器接收电动机频率发生器（FG）脉冲，并产生电动机旋转周期信号（FG / X）。 同步位时钟发生器根据从盘读取的再现信号产生高频位时钟。 位计数器对电机旋转周期信号的每个周期的位时钟的脉冲进行计数，以产生数据量M.线速度和轨道间距计算器通过线速度函数来计算线速度，其中数据量的信息 M和电机旋转周期。 然后，线速度和轨道间距计算器通过具有不同轨迹的数据量，半径和线速度的信息的音调函数来计算轨道间距。

公开(公告)号：US07301863B2

公开(公告)日：2007-11-27

申请号：US11009360

申请日：2004-12-09

申请人： Hsin-Chung Yeh ,  Jin-Chuan Hsu ,  Yung-Chih Li ,  Chao-Hsing Tseng

发明人： Hsin-Chung Yeh ,  Jin-Chuan Hsu ,  Yung-Chih Li ,  Chao-Hsing Tseng

IPC分类号： G11B7/00

CPC分类号： G11B7/08505

摘要： A device for canceling a land-groove offset component of a focusing error signal in an optical storage system includes first and second circuits, and an adder. The first circuit processes a radio (or wobble) frequency ripple signal to obtain a first processed signal that is multiplied by a first gain value (G1) so as to result in a first signal. The second circuit processes a tracking error signal to obtain a second processed signal that is multiplied by a second gain value (G2) so as to result in a second signal. The adder is coupled to the first and second circuits, and adds the first and second signals to produce a compensative land-groove offset component that is to be fed into a focusing device of the optical storage system so as to enable the focusing device to cancel out the land-groove offset component of the focusing error signal.

摘要翻译： 用于消除光学存储系统中的聚焦误差信号的岸脊偏移分量的装置包括第一和第二电路以及加法器。 第一电路处理无线电（或摆动）频率纹波信号，以获得乘以第一增益值（G <1> 1）的第一处理信号，以便产生第一信号。 第二电路处理跟踪误差信号以获得乘以第二增益值（G SUB 2）的第二处理信号，以便产生第二信号。 加法器被耦合到第一和第二电路，并且相加第一和第二信号以产生补偿的岸脊偏移分量，该补偿的槽脊偏移分量被馈送到光学存储系统的聚焦装置，以使聚焦装置能够取消 输出聚焦误差信号的槽脊偏移分量。

公开(公告)号：US06914862B2

公开(公告)日：2005-07-05

申请号：US10073944

申请日：2002-02-14

申请人： Chao-Long Tsai ,  Chi-Kwong Ho ,  Jin-Chuan Hsu

发明人： Chao-Long Tsai ,  Chi-Kwong Ho ,  Jin-Chuan Hsu

IPC分类号： G11B7/005 ,  G11B7/085 ,  G11B27/24 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B27/3027 ,  G11B7/0053 ,  G11B7/08529 ,  G11B27/24

摘要： A device and method for calibrating linear velocity and track pitch for an optical disc is disclosed. The device comprises a frequency divider, a synchronous bit-clock generator, a counter and a linear velocity and track pitch calculator. The frequency divider receives a motor frequency generator (FG) pulse and generates a motor rotation period signal (FG/X). The synchronous bit-clock generator generates a high frequency bit-clock according to a reproduced signal read from disc. The bit counter counts the pulse of the bit-clock for each period of the motor rotation period signal to generate the data amount M. The linear velocity and track pitch calculator calculates the linear velocity by a linear velocity function with the information of the data amount M and the motor rotation period. Then, the linear velocity and track pitch calculator calculates the track pitch by a pitch function with the information of the data amount, radius and linear velocity at different tracks.

摘要翻译： 公开了一种用于校准光盘的线速度和轨道间距的装置和方法。 该装置包括分频器，同步位时钟发生器，计数器和线速度和轨道间距计算器。 分频器接收电动机频率发生器（FG）脉冲，并产生电动机旋转周期信号（FG / X）。 同步位时钟发生器根据从盘读取的再现信号产生高频位时钟。 位计数器对电机旋转周期信号的每个周期的位时钟的脉冲进行计数，以产生数据量M.线速度和轨道间距计算器通过线速度函数来计算线速度，其中数据量的信息 M和电机旋转时间。 然后，线速度和轨道间距计算器通过具有不同轨迹的数据量，半径和线速度的信息的音调函数来计算轨道间距。

公开(公告)号：US20060087952A1

公开(公告)日：2006-04-27

申请号：US10969972

申请日：2004-10-22

申请人： Ching-Ning Chiu ,  Chih-Yuan Chen ,  Jin-Chuan Hsu

发明人： Ching-Ning Chiu ,  Chih-Yuan Chen ,  Jin-Chuan Hsu

IPC分类号： G11B7/00

CPC分类号： G11B7/1263

摘要： This invention provides a laser power control system to control the power of the emitted laser from an optical pick-up head. The system comprises a temperature sensor and a calculating unit. The temperature sensor is used to detect the temperature of the optical pick-up head and to generate a temperature signal accordingly. The calculating unit, storing a control relation of the optical pick-up head, is used to receive the temperature signal. According to the control relation, the calculating unit calculates and outputs a power control signal under the temperature signal and the setting power. The power control signal, converted from digital into analog by a digital to analog converter, is transmitted to the optical pick-up head, so as to control the optical pick-up head to emit the laser according to the setting power.

摘要翻译： 本发明提供了一种激光功率控制系统，用于控制来自光学拾取头的发射激光的功率。 该系统包括温度传感器和计算单元。 温度传感器用于检测光学拾取头的温度并相应地产生温度信号。 存储光拾取头的控制关系的计算单元用于接收温度信号。 根据控制关系，计算单元计算并输出温度信号和设定功率下的功率控制信号。 通过数模转换器从数字转换为模拟的功率控制信号被传送到光学拾取头，以便根据设定功率控制光学拾取头发射激光。

公开(公告)号：US07236437B2

公开(公告)日：2007-06-26

申请号：US10679441

申请日：2003-10-07

申请人： Jin-Chuan Hsu ,  Jyh-Shin Pan ,  Chih-Yuan Chen

发明人： Jin-Chuan Hsu ,  Jyh-Shin Pan ,  Chih-Yuan Chen

IPC分类号： G11B7/00 ,  G11B11/00

CPC分类号： G11B19/04 ,  G01P1/127 ,  G11B7/0941 ,  G11B7/0946 ,  G11B33/08

摘要： A shock detector for an optical disc recorder and method for controlling the recording using a shock signal. The shock detector includes a first detecting unit for detecting the amplitude of a first kind of reference signal passing through a band-pass filter and outputting a first detecting signal, a second detecting unit for detecting the level of a second kind of reference signal and outputting a second detecting signal, a third detecting unit for detecting the revolution of a third kind of reference signal and outputting a third detecting signal, and a judging unit for receiving the first detecting signal, the second detecting signal and the third detecting signal, and enabling a shock signal when the first detecting signal, the second detecting signal and the third detecting signal are simultaneously enabled. Therefore, the shock detector does not need an additional shock sensor.

摘要翻译： 一种用于光盘记录器的冲击检测器和用于使用冲击信号控制记录的方法。 冲击检测器包括：第一检测单元，用于检测通过带通滤波器的第一种参考信号的幅度，并输出第一检测信号;第二检测单元，用于检测第二种参考信号的电平，并输出 第二检测信号，第三检测单元，用于检测第三种参考信号的旋转并输出第三检测信号;以及判断单元，用于接收第一检测信号，第二检测信号和第三检测信号，并使能 当第一检测信号，第二检测信号和第三检测信号同时使能时的冲击信号。 因此，冲击检测器不需要额外的冲击传感器。

公开(公告)号：US20060233075A1

公开(公告)日：2006-10-19

申请号：US10907838

申请日：2005-04-18

申请人： Hsin-Chung Yeh ,  Jia-Hau Lin ,  Shang-Wei Wu ,  Jin-Chuan Hsu

发明人： Hsin-Chung Yeh ,  Jia-Hau Lin ,  Shang-Wei Wu ,  Jin-Chuan Hsu

IPC分类号： G11B7/12

CPC分类号： G11B7/0945 ,  G11B7/094 ,  G11B7/1267

摘要： Read focus error (FE) bias is calibrated on an embossed area of the optical disc. OPC is then performed with the calibrated servo signal bias to obtain a write power level. Data are written on and read from the optical disc based on the write power level and the calibrated servo signal bias.

摘要翻译： 读取焦点误差（FE）偏置在光盘的压花区域上校准。 然后使用校准的伺服信号偏置来执行OPC以获得写入功率电平。 基于写入功率电平和校准的伺服信号偏置，将数据写入光盘并从光盘读取数据。

公开(公告)号：US20050185538A1

公开(公告)日：2005-08-25

申请号：US11009360

申请日：2004-12-09

申请人： Hsin-Chung Yeh ,  Jin-Chuan Hsu ,  Yung-Chih Li

发明人： Hsin-Chung Yeh ,  Jin-Chuan Hsu ,  Yung-Chih Li

IPC分类号： G11B7/085

CPC分类号： G11B7/08505

摘要： A device for canceling a land-groove offset component of a focusing error signal in an optical storage system includes first and second circuits, and an adder. The first circuit processes a radio (or wobble) frequency ripple signal to obtain a first processed signal that is multiplied by a first gain value (G1) so as to result in a first signal. The second circuit processes a tracking error signal to obtain a second processed signal that is multiplied by a second gain value (G2) so as to result in a second signal. The adder is coupled to the first and second circuits, and adds the first and second signals to produce a compensative land-groove offset component that is to be fed into a focusing device of the optical storage system so as to enable the focusing device to cancel out the land-groove offset component of the focusing error signal.

摘要翻译： 用于消除光学存储系统中的聚焦误差信号的岸脊偏移分量的装置包括第一和第二电路以及加法器。 第一电路处理无线电（或摆动）频率纹波信号，以获得乘以第一增益值（G <1> 1）的第一处理信号，以便产生第一信号。 第二电路处理跟踪误差信号以获得乘以第二增益值（G SUB 2）的第二处理信号，以便产生第二信号。 加法器被耦合到第一和第二电路，并且相加第一和第二信号以产生补偿的岸脊偏移分量，该补偿的槽脊偏移分量被馈送到光学存储系统的聚焦装置，以使聚焦装置能够取消 输出聚焦误差信号的槽脊偏移分量。

公开(公告)号：US20070047417A1

公开(公告)日：2007-03-01

申请号：US11462076

申请日：2006-08-03

申请人： Chih-Hsiung Chu ,  Jin-Chuan Hsu ,  Po Wei Chang ,  Yi-jiun Lai

发明人： Chih-Hsiung Chu ,  Jin-Chuan Hsu ,  Po Wei Chang ,  Yi-jiun Lai

IPC分类号： G11B7/0045

CPC分类号： G11B7/00456 ,  G11B7/1267

摘要： A method for optimizing write strategy parameters by adopting different adjustment procedures according to quality indices is provided. A quality index representing a reproduction result corresponding to a write strategy is acquired. One adjustment procedure is determined from multiple adjustment procedures according to the acquired quality index. The determined adjustment procedure is performed to optimize the write strategy. The write strategy comprises multiple write strategy parameters. Each adjustment procedure comprises at least one of the write strategy parameters to be adjusted and the sequence of the adjusted write strategy parameters.

摘要翻译： 提供了一种根据质量指标采用不同调整程序优化写入策略参数的方法。 获取表示与写入策略对应的再现结果的质量指标。 根据所获得的质量指标，从多个调整程序确定一个调整程序。 执行确定的调整过程以优化写入策略。 写策略包括多个写策略参数。 每个调整过程包括要调整的写入策略参数和调整的写入策略参数的序列中的至少一个。

公开(公告)号：US07092338B2

公开(公告)日：2006-08-15

申请号：US10286234

申请日：2002-10-31

申请人： Chih-Yuan Chen ,  Jin-Chuan Hsu

发明人： Chih-Yuan Chen ,  Jin-Chuan Hsu

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/00458

摘要： In a method and apparatus for controlling the power of a laser beam in an optical recording system that includes a laser light source, an optical detector detects a reflected write pulse that is a reflection of an incident recording light signal from the optical recording medium, and a signal generating device generates a mark formation effectiveness (MFE) signal according to the reflected write pulse. A laser power compensation circuit includes a filter for filtering the MFE signal so as to result in a first component, and a combiner for combining the first component and the MFE signal so as to result in a second component. The laser power compensation circuit controls laser beam power of the laser light source according to the first and second components for optimum information recording.