Method for detecting defect signals on a disc
    1.
    发明授权
    Method for detecting defect signals on a disc 有权
    用于检测光盘上的缺陷信号的方法

    公开(公告)号:US07539101B2

    公开(公告)日:2009-05-26

    申请号:US11035043

    申请日:2005-01-14

    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。

    Method for adjusting a control parameter and optical disc drive server system using the same
    2.
    发明授权
    Method for adjusting a control parameter and optical disc drive server system using the same 失效
    用于调整控制参数的方法和使用其的光盘驱动器服务器系统

    公开(公告)号:US07313057B2

    公开(公告)日:2007-12-25

    申请号:US10892849

    申请日:2004-07-16

    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。

    Method for estimating power compensation and recording power of a tilting disk
    3.
    发明申请
    Method for estimating power compensation and recording power of a tilting disk 有权
    用于估计倾斜盘的功率补偿和记录功率的方法

    公开(公告)号:US20070230294A1

    公开(公告)日:2007-10-04

    申请号:US11396661

    申请日:2006-04-04

    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。

    Method for controlling read power and open-loop read control device using the same
    4.
    发明申请
    Method for controlling read power and open-loop read control device using the same 失效
    用于控制读取功率的方法和使用其的开环读取控制装置

    公开(公告)号:US20060028939A1

    公开(公告)日:2006-02-09

    申请号:US10892770

    申请日:2004-07-16

    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。

    Method for controlling read power and open-loop read control device using the same
    5.
    发明授权
    Method for controlling read power and open-loop read control device using the same 有权
    用于控制读取功率的方法和使用其的开环读取控制装置

    公开(公告)号:US07995447B2

    公开(公告)日:2011-08-09

    申请号:US12755037

    申请日:2010-04-06

    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。

    Method for estimating power compensation and recording power of a tilting disk
    6.
    发明授权
    Method for estimating power compensation and recording power of a tilting disk 有权
    用于估计倾斜盘的功率补偿和记录功率的方法

    公开(公告)号:US07808865B2

    公开(公告)日:2010-10-05

    申请号:US11396661

    申请日:2006-04-04

    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。

    METHOD FOR CONTROLLING READ POWER AND OPEN-LOOP READ CONTROL DEVICE USING THE SAME
    7.
    发明申请
    METHOD FOR CONTROLLING READ POWER AND OPEN-LOOP READ CONTROL DEVICE USING THE SAME 有权
    用于控制读取功率的方法和使用该读出电源的开环读取控制装置

    公开(公告)号:US20100188944A1

    公开(公告)日:2010-07-29

    申请号:US12755037

    申请日:2010-04-06

    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。

    Method for controlling read power and open-loop read control device using the same
    8.
    发明授权
    Method for controlling read power and open-loop read control device using the same 失效
    用于控制读取功率的方法和使用其的开环读取控制装置

    公开(公告)号:US07693022B2

    公开(公告)日:2010-04-06

    申请号:US10892770

    申请日:2004-07-16

    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。

    Focusing controller apparatus and method for an optical disk drive
    10.
    发明授权
    Focusing controller apparatus and method for an optical disk drive 有权
    用于光盘驱动器的聚焦控制器装置和方法

    公开(公告)号:US07778128B2

    公开(公告)日:2010-08-17

    申请号:US12111933

    申请日:2008-04-29

    IPC分类号: G11B7/00

    摘要: A focusing controller and the method thereof for an optical disk drive. The focusing controller includes a filter, a coupler and a focus compensator. The filter filters out a high-frequency component of the track error signal and derives an adjusted signal, while the coupler eliminates the adjustment signal from the focusing error signal so as to generate a coupled signal. The focus compensator generates a focus control signal used for controlling a position of the pick up head of the optical disk drive according to the coupled signal during a focusing operation.

    摘要翻译: 一种用于光盘驱动器的聚焦控制器及其方法。 聚焦控制器包括滤光器,耦合器和聚焦补偿器。 滤波器滤除轨道误差信号的高频分量并导出调整后的信号,而耦合器消除了来自聚焦误差信号的调整信号,从而产生耦合信号。 聚焦补偿器根据聚焦操作期间的耦合信号产生用于控制光盘驱动器的拾取头的位置的聚焦控制信号。