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1. 发明授权

US07697399B2 Power control system and related method 失效
标题翻译：电源控制系统及相关方法
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。

2. 发明授权

US07706238B2 Laser power control system and method 有权
标题翻译：激光功率控制系统及方法
公开(公告)号：US07706238B2
公开(公告)日：2010-04-27
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 , Jong-Woei Chen
发明人： Ming-Jiou Yu , Chun-Yu Lin , Kuo-Jung Lan , Kuan-Hua Chao , Chia-Wei Liao , Chih-Ching Chen , Shu-Hung Chou , Jong-Woei Chen
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。

3. 发明申请

US20070280086A1 LASER POWER CONTROL SYSTEM AND METHOD 有权
标题翻译：激光功率控制系统及方法
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。

4. 发明授权

US07706219B2 Signal processing apparatus and method for an optical disc drive 有权
标题翻译：用于光盘驱动器的信号处理装置和方法
公开(公告)号：US07706219B2
公开(公告)日：2010-04-27
申请号：US11758017
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 , Shiue-Shin Liu , Shu-Hung Chou , Yu-Hsuan Lin , Jong-Woei Chen
发明人： Chia-Wei Liao , Chih-Ching Chen , Yuh Cheng , Ming-Jiou Yu , Kuo-Jung Lan , Chun-Yu Lin , Shiue-Shin Liu , Shu-Hung Chou , Yu-Hsuan Lin , Jong-Woei Chen
IPC分类号： G11B7/00
CPC分类号： G11B20/10 , G11B7/0903 , G11B7/0909 , G11B7/0943 , G11B7/1263 , G11B20/10009 , G11B2220/2537
摘要： A signal processing apparatus includes sample and hold units for holding a plurality of analog photo diode signals. A signal holding controller generates control signals to the sample and hold units for holding the analog photo diode signals. Analog adjusting modules adjust the held analog photo diode signals. A multiplexer selectively couples one input end of the multiplexer to the output end of the multiplexer for outputting the adjusted analog photo diode signals. An analog to digital converter converts the adjusted analog photo diode signals into digital photo diode signals.
摘要翻译：信号处理装置包括用于保持多个模拟光电二极管信号的采样和保持单元。信号保持控制器产生用于保持模拟光电二极管信号的采样和保持单元的控制信号。模拟调整模块调节保持的模拟光电二极管信号。复用器选择性地将多路复用器的输入端耦合到多路复用器的输出端，以输出经调整的模拟光电二极管信号。模数转换器将调整后的模拟光电二极管信号转换为数字光电二极管信号。

5. 发明申请

US20070279274A1 AUTOMATIC POWER CONTROL SYSTEM FOR OPTICAL DISC DRIVE AND METHOD THEREOF 失效
标题翻译：光盘驱动自动功率控制系统及其方法
公开(公告)号：US20070279274A1
公开(公告)日：2007-12-06
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： H03M1/12
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。

6. 发明授权

US07693011B2 Wobble detection circuit and method for processing wobble signals 失效
标题翻译：摇摆检测电路及摆动信号处理方法
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。

7. 发明授权

US07474235B2 Automatic power control system for optical disc drive and method thereof 失效
标题翻译：用于光盘驱动器的自动功率控制系统及其方法
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。

8. 发明申请

US20070291620A1 POWER CONTROL SYSTEM AND RELATED METHOD 失效
标题翻译：功率控制系统及相关方法
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。

9. 发明申请

US20070280069A1 METHOD OF GAIN CONTROL AND CONTROLLER THEREOF 审中-公开
标题翻译：增益控制方法及其控制方法
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。

10. 发明授权

US07903006B2 Automatic power control system for optical disc drive and method thereof 有权
标题翻译：用于光盘驱动器的自动功率控制系统及其方法
公开(公告)号：US07903006B2
公开(公告)日：2011-03-08
申请号：US12273601
申请日：2008-11-19
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： H03M1/00
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。

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