公开(公告)号：US20100202260A1

公开(公告)日：2010-08-12

申请号：US12762206

申请日：2010-04-16

申请人： Chih-chung Wu ,  Chi-pei Huang ,  Ming-jiou Yu

发明人： Chih-chung Wu ,  Chi-pei Huang ,  Ming-jiou Yu

IPC分类号： G11B20/10

CPC分类号： G11B7/1263 ,  G11B7/0045 ,  G11B7/00745

摘要： The present invention discloses read and write power control methods and system for an optical recording device that records information on an optical disk having read-only areas. The read and write power control methods respectively introduce the steps of determining a specific level of a former power control signal output based on a former power control, and then according to the specific level, setting a predetermined level of a power control signal to induce a present power control for rapidly outputting a proper power of the pick-up head. Accordingly, the level transition of the read/write power control signal can be shortened and even eliminated. An unstable read/write power output for the pick-up head can be avoided.

摘要翻译： 本发明公开了一种用于在具有只读区域的光盘上记录信息的光记录装置的读写功率控制方法和系统。 读取和写入功率控制方法分别引入了基于先前的功率控制来确定前一个功率控制信号输出的特定电平的步骤，然后根据特定的电平，设置功率控制信号的预定电平以诱导 提供用于快速输出拾取头的适当功率的功率控制。 因此，读/写功率控制信号的电平转换可以被缩短甚至消除。 可以避免拾取头的不稳定的读/写功率输出。

公开(公告)号：US07697399B2

公开(公告)日：2010-04-13

申请号：US11758007

申请日：2007-06-05

申请人： Ming-Jiou Yu ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Kuo-Jung Lan ,  Bing-Yu Hsieh ,  Shu-Hung Chou ,  Kuan-Hua Chao ,  Jong-Woei Chen

发明人： Ming-Jiou Yu ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Kuo-Jung Lan ,  Bing-Yu Hsieh ,  Shu-Hung Chou ,  Kuan-Hua Chao ,  Jong-Woei Chen

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/0943

摘要： A method for controlling a specific output power level emitted from a laser diode (LD) in an optical pick-up head unit (OPU) is disclosed. The LD is configured to provide a plurality of output power levels for accessing/recording an optical disc. The method includes: determining a specific power control value according to a first output power level, a second output power level, a first power control value of the first output power level, and the specific output power level, wherein the first output power level is less than the specific output power level and greater than the second output power level; and driving the LD to emit the specific output power level according to the specific power control value, the first power control value, and a second power control value of the second output power level.

摘要翻译： 公开了一种用于控制从光学拾取头单元（OPU）中的激光二极管（LD）发射的特定输出功率电平的方法。 LD被配置为提供用于访问/记录光盘的多个输出功率电平。 该方法包括：根据第一输出功率电平，第二输出功率电平，第一输出功率电平的第一功率控制值和特定输出功率电平来确定特定功率控制值，其中第一输出功率电平为 小于特定输出功率电平并大于第二输出功率电平; 以及根据所述特定功率控制值，所述第一功率控制值和所述第二输出功率电平的第二功率控制值来驱动所述LD发出所述特定输出功率电平。

公开(公告)号：US07693011B2

公开(公告)日：2010-04-06

申请号：US11755202

申请日：2007-05-30

申请人： Yuh Cheng ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Bing-Yu Hsieh ,  Chia-Hua Chou

发明人： Yuh Cheng ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Bing-Yu Hsieh ,  Chia-Hua Chou

IPC分类号： G11B7/00

CPC分类号： G11B20/1217 ,  G11B7/0053 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B27/24 ,  G11B2020/1238 ,  G11B2020/1239 ,  G11B2020/1268 ,  G11B2020/1269 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/2562 ,  G11B2220/2579

摘要： The invention provides a wobble detection circuit. An exemplary embodiment of the wobble detection circuit comprises an automatic gain control module, an analog to digital converter, a digital band pass filter, and a digital band pass filter. The automatic gain control module amplifies a first input signal and a second input signal detected by a pickup head to the same magnitude to obtain a first amplified signal and a second amplified signal. The adder then subtracts the second amplified signal from the first amplified signal to obtain an analog wobble signal. The analog to digital converter then converts the analog wobble signal to a first digital wobble signal. Finally, the digital band pass filter accepts frequency components of the first digital wobble signal within a pass band and rejects frequency components of the first digital wobble signal outside the pass band to obtain a second digital wobble signal.

摘要翻译： 本发明提供一种摆动检测电路。 摆动检测电路的示例性实施例包括自动增益控制模块，模数转换器，数字带通滤波器和数字带通滤波器。 自动增益控制模块将由拾取头检测到的第一输入信号和第二输入信号放大到相同的幅度以获得第一放大信号和第二放大信号。 然后，加法器从第一放大信号中减去第二放大信号以获得模拟摆动信号。 然后，模数转换器将模拟摆动信号转换为第一数字摆动信号。 最后，数字带通滤波器接收通带内的第一数字摆动信号的频率分量，并且抑制通带外的第一数字摆动信号的频率分量，以获得第二数字摆动信号。

公开(公告)号：US07474235B2

公开(公告)日：2009-01-06

申请号：US11758119

申请日：2007-06-05

申请人： Bing-Yu Hsieh ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Chih-Ching Chen ,  Chia-Wei Liao

发明人： Bing-Yu Hsieh ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Chih-Ching Chen ,  Chia-Wei Liao

IPC分类号： H03M7/00

CPC分类号： H03M1/1225 ,  G11B7/0903 ,  G11B7/0912 ,  G11B7/0941 ,  G11B7/1263 ,  H03M1/129

摘要： An automatic power control system, a down sampling circuit and a down sampling method. The automatic power control system is incorporated in an optical disc drive comprising a laser diode for receiving a control signal to generate a laser beam; and a photodetector for detecting the laser beam to generate an analog input signal. The automatic power control system comprises an analog-to-digital converter, a down sampling circuit, a comparator, and a digital-to-analog converter. The analog-to-digital converter converts the analog input signal to digital data. The down sampling circuit, coupled to the analog-to-digital converter, comprises a down sampler, a counter, and a controller. The down sampler receives a predetermined amount of digital data to generate representation data. The counter, coupled to the down sampler, calculates the amount of digital data, and resets the down sampler when the amount equals or exceeds the predetermined count. The controller, coupled to the counter, disables the counter when the digital data is invalid. The comparator, coupled to the down sampling circuit, compares the representation data with predetermined target data to generate error data. The digital-to-analog converter, coupled to the comparator, converts the error data to analog to generate the control signal.

摘要翻译： 自动功率控制系统，下采样电路和下采样方法。 自动功率控制系统结合在包括用于接收控制信号以产生激光束的激光二极管的光盘驱动器中; 以及用于检测激光束以产生模拟输入信号的光电检测器。 自动功率控制系统包括模数转换器，下采样电路，比较器和数 - 模转换器。 模数转换器将模拟输入信号转换为数字数据。 耦合到模数转换器的下采样电路包括下采样器，计数器和控制器。 下采样器接收预定量的数字数据以产生表示数据。 耦合到下采样器的计数器计算数字数据量，并且当量等于或超过预定计数时重置下采样器。 耦合到计数器的控制器在数字数据无效时禁用计数器。 耦合到下采样电路的比较器将表示数据与预定目标数据进行比较以产生误差数据。 耦合到比较器的数模转换器将误差数据转换成模拟以产生控制信号。

公开(公告)号：US20070291620A1

公开(公告)日：2007-12-20

申请号：US11758007

申请日：2007-06-05

申请人： Ming-Jiou Yu ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Kuo-Jung Lan ,  Bing-Yu Hsieh ,  Shu-Hung Chou

发明人： Ming-Jiou Yu ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Kuo-Jung Lan ,  Bing-Yu Hsieh ,  Shu-Hung Chou

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/0943

摘要： A method for controlling a specific output power level emitted from a laser diode (LD) in an optical pick-up head unit (OPU) is disclosed. The LD is configured to provide a plurality of output power levels for accessing/recording an optical disc. The method includes: determining a specific power control value according to a first output power level, a second output power level, a first power control value of the first output power level, and the specific output power level, wherein the first output power level is less than the specific output power level and greater than the second output power level; and driving the LD to emit the specific output power level according to the specific power control value, the first power control value, and a second power control value of the second output power level.

摘要翻译： 公开了一种用于控制从光学拾取头单元（OPU）中的激光二极管（LD）发射的特定输出功率电平的方法。 LD被配置为提供用于访问/记录光盘的多个输出功率电平。 该方法包括：根据第一输出功率电平，第二输出功率电平，第一输出功率电平的第一功率控制值和特定输出功率电平来确定特定功率控制值，其中第一输出功率电平为 小于特定输出功率电平并大于第二输出功率电平; 以及根据所述特定功率控制值，所述第一功率控制值和所述第二输出功率电平的第二功率控制值来驱动所述LD发出所述特定输出功率电平。

公开(公告)号：US20070280086A1

公开(公告)日：2007-12-06

申请号：US11758018

申请日：2007-06-05

申请人： Ming-Jiou Yu ,  Chun-Yu Lin ,  Kuo-Jung Lan ,  Kuan-Hua Chao ,  Chia-Wei Liao ,  Chih-Ching Chen ,  Shu-Hung Chou

发明人： Ming-Jiou Yu ,  Chun-Yu Lin ,  Kuo-Jung Lan ,  Kuan-Hua Chao ,  Chia-Wei Liao ,  Chih-Ching Chen ,  Shu-Hung Chou

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/08505 ,  G11B7/0903

摘要： A laser power control system and related method for reducing a settling time in a target laser power transition are disclosed. The laser power control system includes a state decision circuit, for generating a state decision signal according to a selected operational state of a target circuit; a plurality of buffers, for storing a plurality of control data corresponding to a plurality of candidate operational states of the target circuit respectively; and a multiplexer, coupled between the state decision circuit and the buffers, for coupling a selected buffer of the buffers and the target circuit according to the state decision signal for outputting a control datum stored in the selected buffer to the target circuit.

摘要翻译： 公开了一种用于减少目标激光功率转换中的建立时间的激光功率控制系统和相关方法。 激光功率控制系统包括状态判定电路，用于根据所选择的目标电路的操作状态产生状态判定信号; 多个缓冲器，用于分别存储对应于所述目标电路的多个候选操作状态的多个控制数据; 以及耦合在所述状态判定电路和所述缓冲器之间的多路复用器，用于根据用于将所选择的缓冲器中存储的控制数据输出到所述目标电路的所述状态判定信号来耦合所述缓冲器的选定缓冲器和所述目标电路。

公开(公告)号：US20070280069A1

公开(公告)日：2007-12-06

申请号：US11755186

申请日：2007-05-30

申请人： Yuh Cheng ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Bing-Yu Hsieh

发明人： Yuh Cheng ,  Chih-Ching Chen ,  Chia-Wei Liao ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Shu-Hung Chou ,  Bing-Yu Hsieh

IPC分类号： G11B20/10

CPC分类号： G11B20/10009 ,  G11B7/0053 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/1217 ,  G11B27/24 ,  G11B2020/1238 ,  G11B2020/1239 ,  G11B2020/1268 ,  G11B2020/1269 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/2562

摘要： The invention provides an automatic gain controller processing an input signal for wobble detection circuit. An exemplary embodiment of the automatic gain controller comprises an envelope detection module, an analog to digital converter, a digital control module, a digital to analog converter, and a variable gain amplifier. The envelope detection module detects an envelope magnitude of an amplified signal. The analog to digital converter converts the envelope magnitude from analog to digital to obtain a digital envelope signal. The digital control module determines a digital gain signal for amplification of the input signal according to the digital envelope signal. The digital to analog converter converts the digital gain signal to an analog gain signal. The variable gain amplifier then amplifies the input signal according to the analog gain signal to obtain the amplified wobble signal.

摘要翻译： 本发明提供一种自动增益控制器来处理摆动检测电路的输入信号。 自动增益控制器的示例性实施例包括包络检测模块，模数转换器，数字控制模块，数模转换器和可变增益放大器。 包络检测模块检测放大信号的包络幅度。 模数转换器将包络幅度从模拟转换为数字，以获得数字包络信号。 数字控制模块根据数字包络信号确定用于放大输入信号的数字增益信号。 数模转换器将数字增益信号转换为模拟增益信号。 然后，可变增益放大器根据模拟增益信号放大输入信号，以获得放大的摆动信号。

公开(公告)号：US08773059B2

公开(公告)日：2014-07-08

申请号：US13073982

申请日：2011-03-28

申请人： Kuan-Kai Juan ,  Yen-Lin Chen ,  Chih-Lung Tai ,  Hao-Hui Yin ,  Hung-Yen Chen ,  Chih-Chuan Chen ,  Hung-I Chen ,  Ming-Jiou Yu

发明人： Kuan-Kai Juan ,  Yen-Lin Chen ,  Chih-Lung Tai ,  Hao-Hui Yin ,  Hung-Yen Chen ,  Chih-Chuan Chen ,  Hung-I Chen ,  Ming-Jiou Yu

IPC分类号： H02P1/00

CPC分类号： G11B19/28 ,  G11B5/59605

摘要： A controller chip for controlling a motor device includes a first input port, a first output port, a controller, and a signal processing circuit. The first input port is arranged to receive a motor control input. The first output port is arranged to generate a motor control output. The controller is arranged to generate an output signal according to an input signal, and has a second input port for receiving the input signal and a second output port for outputting the output signal. The input signal is derived from the motor control input, and the motor control output is derived from the output signal. The signal processing circuit has a target interconnection configuration selected from a plurality of candidate interconnection configurations each including an interconnection between the first input port and the second input port and an interconnection between the first output port and the second output port.

摘要翻译： 用于控制电动机装置的控制器芯片包括第一输入端口，第一输出端口，控制器和信号处理电路。 第一输入端口被布置成接收电动机控制输入。 第一输出端口被布置成产生电动机控制输出。 控制器被配置为根据输入信号产生输出信号，并具有用于接收输入信号的第二输入端口和用于输出输出信号的第二输出端口。 输入信号来自电机控制输入，电机控制输出由输出信号导出。 信号处理电路具有选自多个候选互连配置中的目标互连配置，每个候选互连配置包括第一输入端口和第二输入端口之间的互连以及第一输出端口和第二输出端口之间的互连。

公开(公告)号：US20120249040A1

公开(公告)日：2012-10-04

申请号：US13073982

申请日：2011-03-28

申请人： Kuan-Kai Juan ,  Yen-Lin Chen ,  Chih-Lung Tai ,  Hao-Hui Yin ,  Hung-Yen Chen ,  Chih-Chuan Chen ,  Hung-I Chen ,  Ming-Jiou Yu

发明人： Kuan-Kai Juan ,  Yen-Lin Chen ,  Chih-Lung Tai ,  Hao-Hui Yin ,  Hung-Yen Chen ,  Chih-Chuan Chen ,  Hung-I Chen ,  Ming-Jiou Yu

IPC分类号： H02P29/00

CPC分类号： G11B19/28 ,  G11B5/59605

摘要： A controller chip for controlling a motor device includes a first input port, a first output port, a controller, and a signal processing circuit. The first input port is arranged to receive a motor control input. The first output port is arranged to generate a motor control output. The controller is arranged to generate an output signal according to an input signal, and has a second input port for receiving the input signal and a second output port for outputting the output signal. The input signal is derived from the motor control input, and the motor control output is derived from the output signal. The signal processing circuit has a target interconnection configuration selected from a plurality of candidate interconnection configurations each including an interconnection between the first input port and the second input port and an interconnection between the first output port and the second output port.

摘要翻译： 用于控制电动机装置的控制器芯片包括第一输入端口，第一输出端口，控制器和信号处理电路。 第一输入端口被布置成接收电动机控制输入。 第一输出端口被布置成产生电动机控制输出。 控制器被配置为根据输入信号产生输出信号，并具有用于接收输入信号的第二输入端口和用于输出输出信号的第二输出端口。 输入信号来自电机控制输入，电机控制输出由输出信号导出。 信号处理电路具有选自多个候选互连配置中的目标互连配置，每个候选互连配置包括第一输入端口和第二输入端口之间的互连以及第一输出端口和第二输出端口之间的互连。

公开(公告)号：US07911891B2

公开(公告)日：2011-03-22

申请号：US11758082

申请日：2007-06-05

申请人： Chia-Wei Liao ,  Chih-Ching Chen ,  Yuh Cheng ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Chun-Yu Lin ,  Shu-Hung Chou

发明人： Chia-Wei Liao ,  Chih-Ching Chen ,  Yuh Cheng ,  Ming-Jiou Yu ,  Kuo-Jung Lan ,  Chun-Yu Lin ,  Shu-Hung Chou

IPC分类号： G11B7/00

CPC分类号： G11B7/0941 ,  G11B7/0903

摘要： The invention provides an apparatus for controlling servo signal gains of an optical disc drive. The apparatus adjusts the gains of a plurality of servo signals controlling a servo system of the optical disc drive according to a closed-loop mode or a state-reloading mode whenever the optical disk drive encounters an operating state transition. In closed-loop mode, at least one AGC loop of the apparatus compensates the gains of the servo signals with a selectable bandwidth during a specific period after the operating state transition to accelerate the convergence of the servo signals. In state-reloading mode, at least one AGC loop of the apparatus reloads the previously saved convergence values or pre-determined values as the initial values according to the current operating state immediately after the operating state transition to accelerate the convergence of the servo signals.

摘要翻译： 本发明提供一种用于控制光盘驱动器的伺服信号增益的装置。 只要光盘驱动器遇到操作状态转换，该装置根据闭环模式或状态重新加载模式来调整控制光盘驱动器的伺服系统的多个伺服信号的增益。 在闭环模式中，该装置的至少一个AGC环路在操作状态转换之后的特定周期期间以可选择的带宽补偿伺服信号的增益，以加速伺服信号的收敛。 在状态重新加载模式中，装置的至少一个AGC回路根据当前运行状态在运行状态转换之后重新加载先前存储的收敛值或预定值作为初始值，以加速伺服信号的收敛。