公开(公告)号：US07626905B2

公开(公告)日：2009-12-01

申请号：US11376172

申请日：2006-03-16

申请人： Yi-Lin Lai ,  Yi-Sung Chan

发明人： Yi-Lin Lai ,  Yi-Sung Chan

IPC分类号： G11B27/36

CPC分类号： G11B20/10009 ,  G11B7/00375 ,  G11B7/0948 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10425 ,  G11B20/1403 ,  G11B20/18 ,  G11B2220/2537

摘要： A device for protecting a slicer in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a slicer and a logic combination unit. The defect detection unit receives a plurality of defect detection signals to detect various defects for setting a plurality of defect flag signals, wherein the plurality of defect detection signals at least include an envelope signal of a RF signal and bit modulation signals. The slicer receives and digitalizes the RF signal. The logic combination unit performs logic operation on the defect flag signals in order to detect a specified defect and to trigger defect protection for the slicer. A method for protecting a slicer in reading signals on a defect disc is also provided.

摘要翻译： 提供了一种用于保护切片机在缺陷盘上读取信号免受干扰和不稳定性的装置。 该装置包括缺陷检测单元，限幅器和逻辑组合单元。 缺陷检测单元接收多个缺陷检测信号，以检测用于设置多个缺陷标志信号的各种缺陷，其中多个缺陷检测信号至少包括RF信号的包络信号和位调制信号。 切片器接收和数字化RF信号。 逻辑组合单元对缺陷标志信号进行逻辑运算，以检测指定的缺陷并触发限幅器的缺陷保护。 还提供了一种用于保护切片机在缺陷盘上读取信号的方法。

公开(公告)号：US08121001B2

公开(公告)日：2012-02-21

申请号：US11376166

申请日：2006-03-16

申请人： Yi-Lin Lai ,  Yi-Sung Chan

发明人： Yi-Lin Lai ,  Yi-Sung Chan

IPC分类号： G11B7/00

CPC分类号： G11B20/10009 ,  G11B7/00375 ,  G11B7/0948 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10425 ,  G11B20/1403 ,  G11B20/18 ,  G11B2220/2537

摘要： A device for protecting a servo in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit and a logic combination unit. The defect detection unit receives a plurality of defect detection signals to detect various defects for setting a plurality of defect flag signals, wherein the plurality of defect detection signals at least include an envelope signal of a RF signal and bit modulation signals. The logic combination unit performs logic operation on the defect flag signals in order to detect a specified defect. The logic combination unit indicates a servo control unit generating low-pass output signals according to said plurality of defect flag signals for controlling related electromechanical devices to prevent from disturbance and instability when the specified defect is detected. A method for protecting a servo in reading signals on a defect disc is also provided.

摘要翻译： 提供一种用于保护伺服读取缺陷盘上的信号免受干扰和不稳定性的装置。 该装置包括缺陷检测单元和逻辑组合单元。 缺陷检测单元接收多个缺陷检测信号，以检测用于设置多个缺陷标志信号的各种缺陷，其中多个缺陷检测信号至少包括RF信号的包络信号和位调制信号。 逻辑组合单元对缺陷标志信号进行逻辑运算，以检测指定的缺陷。 逻辑组合单元指示根据所述多个缺陷标志信号产生低通输出信号的伺服控制单元，用于控制相关机电装置，以防止在检测到指定缺陷时的干扰和不稳定性。 还提供了一种用于在缺陷盘上读取信号中保护伺服的方法。

公开(公告)号：US20060221732A1

公开(公告)日：2006-10-05

申请号：US11376173

申请日：2006-03-16

申请人： Yi-Lin Lai ,  Yi-Sung Chan

发明人： Yi-Lin Lai ,  Yi-Sung Chan

IPC分类号： G11C29/00

CPC分类号： G11B20/10009 ,  G11B7/00375 ,  G11B7/0948 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10425 ,  G11B20/1403 ,  G11B20/18 ,  G11B2220/2537

摘要： A device for protecting a preamplifier in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a logic combination unit and a preamplifier. The defect detection unit receives a plurality of defect detection signals to detect various defects for setting a plurality of defect flag signals. The logic combination unit performs logic operation on the defect flag signals in order to detect a specified defect. The preamplifier receives data from a pickup head and generates an RF signal for data process, servo control signals for a servo control unit and various signals for defect detection. The preamplifier includes an equalizer and an auto gain control (AGC) unit. Wherein the equalizer uses corresponding boost gain or cut-off frequency to equalize and recover an IRF signal affected by the specified defect. The AGC unit controls a gain for the equalized RF signal affected by the specified defect. A method for protecting a preamplifier in reading signals on a defect disc is also provided.

摘要翻译： 提供了一种用于保护前置放大器读取缺陷盘上的信号免受干扰和不稳定性的装置。 该装置包括缺陷检测单元，逻辑组合单元和前置放大器。 缺陷检测单元接收多个缺陷检测信号，以检测用于设置多个缺陷标志信号的各种缺陷。 逻辑组合单元对缺陷标志信号进行逻辑运算，以检测指定的缺陷。 前置放大器从拾取头接收数据，并产生用于数据处理的RF信号，用于伺服控制单元的伺服控制信号和用于缺陷检测的各种信号。 前置放大器包括均衡器和自动增益控制（AGC）单元。 其中均衡器使用相应的升压增益或截止频率来均衡和恢复受指定缺陷影响的IRF信号。 AGC单元控制受指定缺陷影响的均衡RF信号的增益。 还提供了一种用于保护前置放大器读取缺陷盘上的信号的方法。

公开(公告)号：US20060215519A1

公开(公告)日：2006-09-28

申请号：US11376172

申请日：2006-03-16

申请人： Yi-Lin Lai ,  Yi-Sung Chan

发明人： Yi-Lin Lai ,  Yi-Sung Chan

IPC分类号： G11B5/58

CPC分类号： G11B20/10009 ,  G11B7/00375 ,  G11B7/0948 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10425 ,  G11B20/1403 ,  G11B20/18 ,  G11B2220/2537

摘要： A device for protecting a slicer in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a slicer and a logic combination unit. The defect detection unit receives a plurality of defect detection signals to detect various defects for setting a plurality of defect flag signals, wherein the plurality of defect detection signals at least include an envelope signal of a RF signal and bit modulation signals. The slicer receives and digitalizes the RF signal. The logic combination unit performs logic operation on the defect flag signals in order to detect a specified defect and to trigger defect protection for the slicer. A method for protecting a slicer in reading signals on a defect disc is also provided.

公开(公告)号：US08134898B2

公开(公告)日：2012-03-13

申请号：US11376174

申请日：2006-03-16

申请人： Yi-Lin Lai ,  Yi-Sung Chan

发明人： Yi-Lin Lai ,  Yi-Sung Chan

IPC分类号： G11B7/00

CPC分类号： G11B20/10009 ,  G11B7/00375 ,  G11B7/0948 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10425 ,  G11B20/1403 ,  G11B20/18 ,  G11B2220/2537

摘要： A device for protecting a PLL in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a logic combination unit and a PLL. The defect detection unit receives a plurality of defect detection signals to detect various defects for setting a plurality of defect flag signals, wherein the plurality of defect detection signals include at least an envelope of RF signal and bit modulation signals. The logic combination unit performs logic operation on the defect flag signals in order to detect a specified defect. Wherein, when the specified defect is detected, the PLL uses different bandwidths to compensate a digitalized RF signal affected by the specified defect. A method for protecting a PLL in reading signals on a defect disc is also provided.

摘要翻译： 提供了一种用于保护PLL在缺陷盘上读取信号免受干扰和不稳定性的装置。 该装置包括缺陷检测单元，逻辑组合单元和PLL。 缺陷检测单元接收多个缺陷检测信号，以检测用于设置多个缺陷标志信号的各种缺陷，其中多个缺陷检测信号至少包括RF信号和位调制信号的包络。 逻辑组合单元对缺陷标志信号进行逻辑运算，以检测指定的缺陷。 其中，当检测到指定的缺陷时，PLL使用不同的带宽来补偿受指定缺陷影响的数字化RF信号。 还提供了一种用于在缺陷盘上读取信号中保护PLL的方法。

公开(公告)号：US20060215520A1

公开(公告)日：2006-09-28

申请号：US11376174

申请日：2006-03-16

申请人： Yi-Lin Lai ,  Yi-Sung Chan

发明人： Yi-Lin Lai ,  Yi-Sung Chan

IPC分类号： G11B5/58

CPC分类号： G11B20/10009 ,  G11B7/00375 ,  G11B7/0948 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10425 ,  G11B20/1403 ,  G11B20/18 ,  G11B2220/2537

摘要： A device for protecting a PLL in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a logic combination unit and a PLL. The defect detection unit receives a plurality of defect detection signals to detect various defects for setting a plurality of defect flag signals, wherein the plurality of defect detection signals include at least an envelope of RF signal and bit modulation signals. The logic combination unit performs logic operation on the defect flag signals in order to detect a specified defect. Wherein, when the specified defect is detected, the PLL uses different bandwidths to compensate a digitalized RF signal affected by the specified defect. A method for protecting a PLL in reading signals on a defect disc is also provided.

摘要翻译： 提供了一种用于保护PLL在缺陷盘上读取信号免受干扰和不稳定性的装置。 该装置包括缺陷检测单元，逻辑组合单元和PLL。 缺陷检测单元接收多个缺陷检测信号，以检测用于设置多个缺陷标志信号的各种缺陷，其中多个缺陷检测信号至少包括RF信号和位调制信号的包络。 逻辑组合单元对缺陷标志信号进行逻辑运算，以检测指定的缺陷。 其中，当检测到指定的缺陷时，PLL使用不同的带宽来补偿受指定缺陷影响的数字化RF信号。 还提供了一种用于在缺陷盘上读取信号中保护PLL的方法。

公开(公告)号：US20060215518A1

公开(公告)日：2006-09-28

申请号：US11376166

申请日：2006-03-16

申请人： Yi-Lin Lai ,  Yi-Sung Chan

发明人： Yi-Lin Lai ,  Yi-Sung Chan

IPC分类号： G11B7/00

CPC分类号： G11B20/10009 ,  G11B7/00375 ,  G11B7/0948 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10425 ,  G11B20/1403 ,  G11B20/18 ,  G11B2220/2537

摘要： A device for protecting a servo in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit and a logic combination unit. The defect detection unit receives a plurality of defect detection signals to detect various defects for setting a plurality of defect flag signals, wherein the plurality of defect detection signals at least include an envelope signal of a RF signal and bit modulation signals. The logic combination unit performs logic operation on the defect flag signals in order to detect a specified defect. The logic combination unit indicates a servo control unit generating low-pass output signals according to said plurality of defect flag signals for controlling related electromechanical devices to prevent from disturbance and instability when the specified defect is detected. A method for protecting a servo in reading signals on a defect disc is also provided.

摘要翻译： 提供一种用于保护伺服读取缺陷盘上的信号免受干扰和不稳定性的装置。 该装置包括缺陷检测单元和逻辑组合单元。 缺陷检测单元接收多个缺陷检测信号，以检测用于设置多个缺陷标志信号的各种缺陷，其中多个缺陷检测信号至少包括RF信号的包络信号和位调制信号。 逻辑组合单元对缺陷标志信号进行逻辑运算，以检测指定的缺陷。 逻辑组合单元指示根据所述多个缺陷标志信号产生低通输出信号的伺服控制单元，用于控制相关机电装置，以防止在检测到指定缺陷时的干扰和不稳定性。 还提供了一种用于在缺陷盘上读取信号中保护伺服的方法。

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：US07301871B2

公开(公告)日：2007-11-27

申请号：US10791532

申请日：2004-03-03

申请人： Yi-Lin Lai ,  Yi-Chung Chan

发明人： Yi-Lin Lai ,  Yi-Chung Chan

IPC分类号： G11B27/36

CPC分类号： G11B20/1816 ,  G11B20/1024 ,  G11B20/10314 ,  G11B20/10388 ,  G11B20/14 ,  G11B27/10 ,  G11B2020/1823 ,  G11B2220/2537

摘要： The device includes a servo control unit, a data path control unit, a defect detection unit, and a logic combination unit. The data path control unit further includes a preamplifier receiving data from a lens and generating RF signals for data process. The defect detection unit receives the various signals for detecting different kinds of defects to set corresponding defect flag signals. The defect detection unit includes means for ADefect1 detection, means for EFMDefect detection, means for RPDefect detection, means for Interruption detection, means for ADefect detection, and means for DSPDefect detection.

摘要翻译： 该装置包括伺服控制单元，数据路径控制单元，缺陷检测单元和逻辑组合单元。 数据路径控制单元还包括从镜头接收数据并产生用于数据处理的RF信号的前置放大器。 缺陷检测单元接收用于检测不同种类的缺陷的各种信号，以设置相应的缺陷标志信号。 缺陷检测单元包括用于ADEULT 1检测的装置，用于EFMDefect检测的装置，用于RPDefect检测的装置，用于中断检测的装置，用于AD检测的装置，以及用于DSPDefect检测的装置。