公开(公告)号：US20050105412A1

公开(公告)日：2005-05-19

申请号：US10990669

申请日：2004-11-17

申请人： Yi-Lin Lai ,  Keng-Lon Lei ,  Chin-Yin Tsai

发明人： Yi-Lin Lai ,  Keng-Lon Lei ,  Chin-Yin Tsai

IPC分类号： G05B15/02 ,  G11B5/09 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/09 ,  G11B7/125 ,  G11B20/00 ,  G11B20/18

CPC分类号： G11B7/0941 ,  G11B7/00375 ,  G11B7/0045 ,  G11B7/0948 ,  G11B7/1263 ,  G11B7/1267 ,  G11B20/18

摘要： A method and a device for adjusting control parameters of a servo system of an optical disk drive. A first sinusoidal signal is introduced into a control loop of the servo system, while a band-pass filter is used to extract a second sinusoidal signal. Gain and/or phase variations of the control loop are derived by comparing signal parameters of both the first and second sinusoidal signals. A compensator is then employed to adjust the derived gain and/or phase variations of the control loop so as to overcome the disadvantage of system instability after a long-term working.

摘要翻译： 一种用于调整光盘驱动器的伺服系统的控制参数的方法和装置。 第一正弦信号被引入到伺服系统的控制环路中，而使用带通滤波器来提取第二正弦信号。 通过比较第一和第二正弦信号两者的信号参数，导出控制回路的增益和/或相位变化。 然后使用补偿器来调节控制回路的导出增益和/或相位变化，以克服长期工作后的系统不稳定性的缺点。

公开(公告)号：US07298674B2

公开(公告)日：2007-11-20

申请号：US10990669

申请日：2004-11-17

申请人： Yi-Lin Lai ,  Keng-Lon Lei ,  Chin-Yin Tsai

发明人： Yi-Lin Lai ,  Keng-Lon Lei ,  Chin-Yin Tsai

IPC分类号： G11B7/00

CPC分类号： G11B7/0941 ,  G11B7/00375 ,  G11B7/0045 ,  G11B7/0948 ,  G11B7/1263 ,  G11B7/1267 ,  G11B20/18

摘要： A method and a device for adjusting control parameters of a servo system of an optical disk drive. A first sinusoidal signal is introduced into a control loop of the servo system, while a band-pass filter is used to extract a second sinusoidal signal. Gain and/or phase variations of the control loop are derived by comparing signal parameters of both the first and second sinusoidal signals. A compensator is then employed to adjust the derived gain and/or phase variations of the control loop so as to overcome the disadvantage of system instability after a long-term working.

摘要翻译： 一种用于调整光盘驱动器的伺服系统的控制参数的方法和装置。 第一正弦信号被引入到伺服系统的控制环路中，而使用带通滤波器来提取第二正弦信号。 通过比较第一和第二正弦信号两者的信号参数，导出控制回路的增益和/或相位变化。 然后使用补偿器来调节控制回路的导出增益和/或相位变化，以克服长期工作后的系统不稳定性的缺点。

公开(公告)号：US07539101B2

公开(公告)日：2009-05-26

申请号：US11035043

申请日：2005-01-14

申请人： Chin-Yin Tsai ,  Shih-Fang Chen ,  Yi-Lin Lai

发明人： Chin-Yin Tsai ,  Shih-Fang Chen ,  Yi-Lin Lai

IPC分类号： G11B5/09

CPC分类号： G11B7/00375 ,  G11B20/18

摘要： The present invention provides a method for detecting disk defects of a blank optical disk in a recording and reproducing system when a data-recording operation is performed. In the embodiment, an ATIP and the carrier signal of the ATIP signal, ATFM signals, are compared to obtain a difference between these two signals. A wobble defect flag signal is set if the difference keeps higher than a predetermined threshold for a predetermined time interval. On the contrary, the wobble defect flag signal is cleared if the difference keeps lower than the predetermined threshold for the predetermined time interval.

摘要翻译： 本发明提供一种当执行数据记录操作时在记录和再现系统中检测空白光盘的盘缺陷的方法。 在本实施例中，比较ATIP和ATIP信号的载波信号ATFM信号以获得这两个信号之间的差。 如果差异在预定时间间隔内保持高于预定阈值，则设置摆动缺陷标志信号。 相反，如果差异在预定时间间隔内保持低于预定阈值，则摆动缺陷标志信号被清除。

公开(公告)号：US07313057B2

公开(公告)日：2007-12-25

申请号：US10892849

申请日：2004-07-16

申请人： Yi-Lin Lai ,  Chin-Yin Tsai

发明人： Yi-Lin Lai ,  Chin-Yin Tsai

IPC分类号： G11B7/00

CPC分类号： G11B7/0941

摘要： A method for adjusting a control parameter is adopted in an optical disc drive server system, which has a compensator, a control loop and a parameter regulator. The control loop includes an optical pickup and outputs a first tracking error signal/focus error signal. The compensator adjusts the first tracking error signal/focus error signal to obtain a compensated signal for driving the optical pickup to read/write the optical disc. The parameter regulator generates a first sinusoidal signal to be inputted to the control loop, which amplifies the first sinusoidal signal to obtain a second sinusoidal signal. The parameter regulator filters the second sinusoidal signal and calculates a relationship between the first sinusoidal signal and the second sinusoidal signal to obtain a control parameter. The parameter regulator adjusts the compensator to output the compensated signal according to the control parameter.

摘要翻译： 在具有补偿器，控制回路和参数调节器的光盘驱动器服务器系统中采用调整控制参数的方法。 控制回路包括光拾取器并输出第一跟踪误差信号/聚焦误差信号。 补偿器调整第一跟踪误差信号/聚焦误差信号，以获得用于驱动光学拾取器读/写光盘的补偿信号。 参数调节器产生要输入到控制回路的第一正弦信号，其放大第一正弦信号以获得第二正弦信号。 参数调节器对第二正弦信号进行滤波，并计算第一正弦信号和第二正弦信号之间的关系，以获得控制参数。 参数调节器根据控制参数调整补偿器输出补偿信号。

公开(公告)号：US20070230294A1

公开(公告)日：2007-10-04

申请号：US11396661

申请日：2006-04-04

申请人： Chin-Yin Tsai ,  Yi-Lin Lai

发明人： Chin-Yin Tsai ,  Yi-Lin Lai

IPC分类号： G11B7/00

CPC分类号： G11B7/0956 ,  G11B7/126

摘要： The method for estimating recording power Pow_tilting of a tilting part of a tilting disk is shown based on a power compensation formula: Pow_comp=A*(A*K). After a focus error (FE) signal of the tilting part of the tilting disk is manipulated as a focus servo output (FOO) signal, the parameter A is derived by low-pass filtering the FOO signal. Thereafter, another parameter K is then derived from a reference lookup table by using curve fitting approach based on parameter A such that the power compensation Pow_comp could be estimated by substituting parameters A and K into the above formula. A recording power Pow_tilting of the tilting part of the tilting disk could be estimated by adding a given recording power Piwrtpwr to the power compensation Pow_comp.

摘要翻译： 基于功率补偿公式Pow_comp = A *（A * K）示出倾斜盘的倾斜部的估计记录功率的方法。 在将倾斜盘的倾斜部分的焦点误差（FE）信号作为聚焦伺服输出（FOO）信号进行操作之后，通过对FOO信号进行低通滤波来导出参数A. 此后，通过使用基于参数A的曲线拟合方法从参考查找表导出另一参数K，使得可以通过将参数A和K代入上述公式来估计功率补偿Pow_comp。 可以通过将给定的记录功率Piwrtpwr添加到功率补偿Pow_comp来估计倾斜盘的倾斜部分的记录功率Pow_tilting。

公开(公告)号：US20060028939A1

公开(公告)日：2006-02-09

申请号：US10892770

申请日：2004-07-16

申请人： Yi-Lin Lai ,  Chin-Yin Tsai

发明人： Yi-Lin Lai ,  Chin-Yin Tsai

IPC分类号： G11B7/12 ,  G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/1267

摘要： A method for controlling read power and an open-loop read control device using the same. The open-loop read control device is used in an optical disk writer and includes a memory, a DAC and an amplifier. The optical disk writer includes a pickup head device having a laser diode. When writing is disabled, the read power of the optical disk writer for reading the disk corresponds to a specific voltage. The memory stores a relationship curve and outputs a corresponding reference value corresponding to the specific voltage. The DAC converts the corresponding reference value into an analog corresponding reference value. The amplifier receives the analog corresponding reference value and outputs a read power control voltage, which controls the laser diode to generate a substantially constant read power in the write process.

摘要翻译： 一种用于控制读取功率的方法和使用其的开环读取控制装置。 开环读取控制装置用于光盘写入器并且包括存储器，DAC和放大器。 光盘刻录机包括具有激光二极管的拾取头装置。 当禁止写入时，用于读取光盘的光盘写入器的读取功率对应于特定电压。 存储器存储关系曲线并输出与特定电压对应的相应参考值。 DAC将相应的参考值转换为模拟相应的参考值。 放大器接收模拟相应的参考值，并输出读取功率控制电压，其控制激光二极管以在写入过程中产生基本上恒定的读取功率。

公开(公告)号：US07995447B2

公开(公告)日：2011-08-09

申请号：US12755037

申请日：2010-04-06

申请人： Yi-Lin Lai ,  Chin-Yin Tsai

发明人： Yi-Lin Lai ,  Chin-Yin Tsai

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/1267

摘要： A method for controlling read power and an open-loop read control device using the same. The open-loop read control device is used in an optical disk writer and includes a memory, a DAC and an amplifier. The optical disk writer includes a pickup head device having a laser diode. When writing is disabled, the read power of the optical disk writer for reading the disk corresponds to a specific voltage. The memory stores a relationship curve and outputs a corresponding reference value corresponding to the specific voltage. The DAC converts the corresponding reference value into an analog corresponding reference value. The amplifier receives the analog corresponding reference value and outputs a read power control voltage, which controls the laser diode to generate a substantially constant read power in the write process.

摘要翻译： 一种用于控制读取功率的方法和使用其的开环读取控制装置。 开环读取控制装置用于光盘写入器并且包括存储器，DAC和放大器。 光盘刻录机包括具有激光二极管的拾取头装置。 当禁止写入时，用于读取光盘的光盘写入器的读取功率对应于特定电压。 存储器存储关系曲线并输出与特定电压对应的相应参考值。 DAC将相应的参考值转换为模拟相应的参考值。 放大器接收模拟相应的参考值，并输出读取功率控制电压，其控制激光二极管以在写入过程中产生基本上恒定的读取功率。

公开(公告)号：US07808865B2

公开(公告)日：2010-10-05

申请号：US11396661

申请日：2006-04-04

申请人： Chin-Yin Tsai ,  Yi-Lin Lai

发明人： Chin-Yin Tsai ,  Yi-Lin Lai

IPC分类号： G11B15/62

CPC分类号： G11B7/0956 ,  G11B7/126

摘要： The method for estimating recording power Pow_tilting of a tilting part of a tilting disk is shown based on a power compensation formula: Pow_comp=A*(A*K). After a focus error (FE) signal of the tilting part of the tilting disk is manipulated as a focus servo output (FOO) signal, the parameter A is derived by low-pass filtering the FOO signal. Thereafter, another parameter K is then derived from a reference lookup table by using curve fitting approach based on parameter A such that the power compensation Pow_comp could be estimated by substituting parameters A and K into the above formula. A recording power Pow_tilting of the tilting part of the tilting disk could be estimated by adding a given recording power Piwrtpwr to the power compensation Pow_comp.

摘要翻译： 基于功率补偿公式Pow_comp = A *（A * K）示出倾斜盘的倾斜部的估计记录功率的方法。 在将倾斜盘的倾斜部分的焦点误差（FE）信号作为聚焦伺服输出（FOO）信号进行操作之后，通过对FOO信号进行低通滤波来导出参数A. 此后，通过使用基于参数A的曲线拟合方法从参考查找表导出另一参数K，使得可以通过将参数A和K代入上述公式来估计功率补偿Pow_comp。 可以通过将给定的记录功率Piwrtpwr添加到功率补偿Pow_comp来估计倾斜盘的倾斜部分的记录功率Pow_tilting。

公开(公告)号：US20100188944A1

公开(公告)日：2010-07-29

申请号：US12755037

申请日：2010-04-06

申请人： Yi-Lin Lai ,  Chin-Yin Tsai

发明人： Yi-Lin Lai ,  Chin-Yin Tsai

IPC分类号： G11B20/10

CPC分类号： G11B7/1263 ,  G11B7/1267

摘要： A method for controlling read power and an open-loop read control device using the same. The open-loop read control device is used in an optical disk writer and includes a memory, a DAC and an amplifier. The optical disk writer includes a pickup head device having a laser diode. When writing is disabled, the read power of the optical disk writer for reading the disk corresponds to a specific voltage. The memory stores a relationship curve and outputs a corresponding reference value corresponding to the specific voltage. The DAC converts the corresponding reference value into an analog corresponding reference value. The amplifier receives the analog corresponding reference value and outputs a read power control voltage, which controls the laser diode to generate a substantially constant read power in the write process.

摘要翻译： 一种用于控制读取功率的方法和使用其的开环读取控制装置。 开环读取控制装置用于光盘写入器并且包括存储器，DAC和放大器。 光盘刻录机包括具有激光二极管的拾取头装置。 当禁止写入时，用于读取光盘的光盘写入器的读取功率对应于特定电压。 存储器存储关系曲线并输出与特定电压对应的相应参考值。 DAC将相应的参考值转换为模拟相应的参考值。 放大器接收模拟相应的参考值，并输出读取功率控制电压，其控制激光二极管以在写入过程中产生基本上恒定的读取功率。

公开(公告)号：US07693022B2

公开(公告)日：2010-04-06

申请号：US10892770

申请日：2004-07-16

申请人： Yi-Lin Lai ,  Chin-Yin Tsai

发明人： Yi-Lin Lai ,  Chin-Yin Tsai

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/1267

摘要： A method for controlling read power and an open-loop read control device using the same. The open-loop read control device is used in an optical disk writer and includes a memory, a DAC and an amplifier. The optical disk writer includes a pickup head device having a laser diode. When writing is disabled, the read power of the optical disk writer for reading the disk corresponds to a specific voltage. The memory stores a relationship curve and outputs a corresponding reference value corresponding to the specific voltage. The DAC converts the corresponding reference value into an analog corresponding reference value. The amplifier receives the analog corresponding reference value and outputs a read power control voltage, which controls the laser diode to generate a substantially constant read power in the write process.

摘要翻译： 一种用于控制读取功率的方法和使用其的开环读取控制装置。 开环读取控制装置用于光盘写入器并且包括存储器，DAC和放大器。 光盘刻录机包括具有激光二极管的拾取头装置。 当禁止写入时，用于读取光盘的光盘写入器的读取功率对应于特定电压。 存储器存储关系曲线并输出与特定电压对应的相应参考值。 DAC将相应的参考值转换为模拟相应的参考值。 放大器接收模拟相应的参考值，并输出读取功率控制电压，其控制激光二极管以在写入过程中产生基本上恒定的读取功率。