公开(公告)号：US08284647B2

公开(公告)日：2012-10-09

申请号：US12884426

申请日：2010-09-17

申请人： Wen-Chun Feng ,  Zhi-Hsin Lin

发明人： Wen-Chun Feng ,  Zhi-Hsin Lin

IPC分类号： G11B20/18

CPC分类号： G11B19/12

摘要： A method for detecting a thickness of an optical disc is provided. Firstly, a beam intensity signal and a focusing error signal are generated. Then, a first time interval for a focus point of the laser beam to move from a first layer to a second layer of the optical disc is acquired according to the beam intensity signal or the focusing error signal. Then, a second time interval between two peak values of an S curve of the focusing error signal is detected. Afterwards, the thickness between the first layer and the second layer is calculated according to a known S-curve detection range, the first time interval and the second time interval. The S-curve detection range is multiplied by said first time interval and divided by said second time interval to obtain the thickness between the first layer and the second layer of the optical disc.

摘要翻译： 提供了一种用于检测光盘厚度的方法。 首先，生成光束强度信号和聚焦误差信号。 然后，根据光束强度信号或聚焦误差信号获取激光束的聚焦点从光盘的第一层移动到第二层的第一时间间隔。 然后，检测聚焦误差信号的S曲线的两个峰值之间的第二时间间隔。 然后，根据已知的S曲线检测范围，第一时间间隔和第二时间间隔计算第一层和第二层之间的厚度。 将S曲线检测范围乘以所述第一时间间隔并除以所述第二时间间隔，以获得光盘的第一层和第二层之间的厚度。

公开(公告)号：US20100208561A1

公开(公告)日：2010-08-19

申请号：US12707303

申请日：2010-02-17

申请人： Lu Chia TSENG ,  Sih-Kai Wang ,  Zhi-Hsin Lin

发明人： Lu Chia TSENG ,  Sih-Kai Wang ,  Zhi-Hsin Lin

IPC分类号： G11B27/36

CPC分类号： G11B7/00375 ,  G11B7/0948 ,  G11B20/10009 ,  G11B20/10481 ,  G11B20/18 ,  G11B2020/1853 ,  G11B2220/2537

摘要： An optical storage system includes an optical pick-up head for receiving and transforming an optical signal into an electric signal; a pre-amplifier for receiving the electric signal and outputting a RF signal and a position error signal; a data and timing recovery unit for receiving the RF signal and generating a modulated signal and a clock signal; an error correction unit for generating a data signal according to the modulation signal and the clock signal; a defect signal generator for receiving the RF signal and generating a defect signal according to the RF signal, wherein the defect signal is enabled when the RF signal has a defect; and an error correction controller for receiving the defect signal and generating an error correction control signal according to the defect signal, wherein the error correction unit further receives the error correction control signal and adjusts the decoding strategy of the error correction unit according to the error correction control signal.

摘要翻译： 一种光学存储系统，包括用于接收光信号并将其变换成电信号的光拾取头; 用于接收电信号并输出​​RF信号和位置误差信号的前置放大器; 数据和定时恢复单元，用于接收RF信号并产生调制信号和时钟信号; 纠错单元，用于根据调制信号和时钟信号产生数据信号; 缺陷信号发生器，用于接收RF信号并根据RF信号产生缺陷信号，其中当RF信号具有缺陷时，使能缺陷信号; 以及纠错控制器，用于接收所述缺陷信号并根据所述缺陷信号产生纠错控制信号，其中所述纠错单元还接收所述纠错控制信号，并根据所述误差校正来调整所述纠错单元的解码策略 控制信号。

公开(公告)号：US08570848B2

公开(公告)日：2013-10-29

申请号：US12707303

申请日：2010-02-17

申请人： Lu Chia Tseng ,  Sih-Kai Wang ,  Zhi-Hsin Lin

发明人： Lu Chia Tseng ,  Sih-Kai Wang ,  Zhi-Hsin Lin

IPC分类号： G11B7/00

CPC分类号： G11B7/00375 ,  G11B7/0948 ,  G11B20/10009 ,  G11B20/10481 ,  G11B20/18 ,  G11B2020/1853 ,  G11B2220/2537

摘要： An optical storage system includes an optical pick-up head for receiving and transforming an optical signal into an electric signal; a pre-amplifier for receiving the electric signal and outputting a RF signal and a position error signal; a data and timing recovery unit for receiving the RF signal and generating a modulated signal and a clock signal; an error correction unit for generating a data signal according to the modulation signal and the clock signal; a defect signal generator for receiving the RF signal and generating a defect signal according to the RF signal, wherein the defect signal is enabled when the RF signal has a defect; and an error correction controller for receiving the defect signal and generating an error correction control signal according to the defect signal, wherein the error correction unit further receives the error correction control signal and adjusts the decoding strategy of the error correction unit according to the error correction control signal.

摘要翻译： 一种光学存储系统，包括用于接收光信号并将其变换成电信号的光拾取头; 用于接收电信号并输出​​RF信号和位置误差信号的前置放大器; 数据和定时恢复单元，用于接收RF信号并产生调制信号和时钟信号; 纠错单元，用于根据调制信号和时钟信号产生数据信号; 缺陷信号发生器，用于接收RF信号并根据RF信号产生缺陷信号，其中当RF信号具有缺陷时，使能缺陷信号; 以及纠错控制器，用于接收所述缺陷信号并根据所述缺陷信号产生纠错控制信号，其中所述纠错单元还接收所述纠错控制信号，并根据所述误差校正来调整所述纠错单元的解码策略 控制信号。

公开(公告)号：US20120014238A1

公开(公告)日：2012-01-19

申请号：US12955304

申请日：2010-11-29

申请人： Wen-Chun FENG ,  Zhi-Hsin LIN

发明人： Wen-Chun FENG ,  Zhi-Hsin LIN

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/1378 ,  G11B7/13925 ,  G11B2007/13727

摘要： A spherical aberration compensation method is provided. A first thickness of a cover layer at a first radius position of an optical disc is measured. A second thickness of the cover layer at a second radius position of the optical disc is measured. A spherical aberration calibration is performed at a third radius position of the optical disc to obtain an optimal spherical aberration compensation value. According to the first and second radius positions, the first and second thicknesses, and the optimal spherical aberration compensation value at the third radius position, a spherical aberration compensation formula is acquired. Afterwards, an updated spherical aberration compensation value is calculated by the spherical aberration compensation formula according to a fourth radius position where an optical pickup head of the optical disc drive is located. The updated spherical aberration compensation value is inputted into a spherical aberration compensator of the optical disc drive.

摘要翻译： 提供球面像差补偿方法。 测量在光盘的第一半径位置处的覆盖层的第一厚度。 测量在光盘的第二半径位置处的覆盖层的第二厚度。 在光盘的第三半径位置处进行球面像差校准，以获得最佳的球面像差补偿值。 根据第一和第二半径位置，第一和第二厚度以及在第三半径位置处的最佳球面像差补偿值，获得球面像差补偿公式。 然后，通过根据光盘驱动器的光学拾取头所在的第四半径位置的球面像差补偿公式来计算更新的球面像差补偿值。 更新的球面像差补偿值被输入到光盘驱动器的球面像差补偿器。

公开(公告)号：US20110310716A1

公开(公告)日：2011-12-22

申请号：US12884426

申请日：2010-09-17

申请人： Wen-Chun FENG ,  Zhi-Hsin Lin

发明人： Wen-Chun FENG ,  Zhi-Hsin Lin

IPC分类号： G11B27/36

CPC分类号： G11B19/12

摘要： A method for detecting a thickness of an optical disc is provided. Firstly, a beam intensity signal and a focusing error signal are generated. Then, a first time interval for a focus point of the laser beam to move from a first layer to a second layer of the optical disc is acquired according to the beam intensity signal or the focusing error signal. Then, a second time interval between two peak values of an S curve of the focusing error signal is detected. Afterwards, the thickness between the first layer and the second layer is calculated according to a known S-curve detection range, the first time interval and the second time interval. The S-curve detection range is multiplied by said first time interval and divided by said second time interval to obtain the thickness between the first layer and the second layer of the optical disc.

摘要翻译： 提供了一种用于检测光盘厚度的方法。 首先，生成光束强度信号和聚焦误差信号。 然后，根据光束强度信号或聚焦误差信号获取激光束的聚焦点从光盘的第一层移动到第二层的第一时间间隔。 然后，检测聚焦误差信号的S曲线的两个峰值之间的第二时间间隔。 然后，根据已知的S曲线检测范围，第一时间间隔和第二时间间隔计算第一层和第二层之间的厚度。 将S曲线检测范围乘以所述第一时间间隔并除以所述第二时间间隔，以获得光盘的第一层和第二层之间的厚度。

公开(公告)号：US08130604B2

公开(公告)日：2012-03-06

申请号：US12955304

申请日：2010-11-29

申请人： Wen-Chun Feng ,  Zhi-Hsin Lin

发明人： Wen-Chun Feng ,  Zhi-Hsin Lin

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/1378 ,  G11B7/13925 ,  G11B2007/13727

摘要： A spherical aberration compensation method is provided. A first thickness of a cover layer at a first radius position of an optical disc is measured. A second thickness of the cover layer at a second radius position of the optical disc is measured. A spherical aberration calibration is performed at a third radius position of the optical disc to obtain an optimal spherical aberration compensation value. According to the first and second radius positions, the first and second thicknesses, and the optimal spherical aberration compensation value at the third radius position, a spherical aberration compensation formula is acquired. Afterwards, an updated spherical aberration compensation value is calculated by the spherical aberration compensation formula according to a fourth radius position where an optical pickup head of the optical disc drive is located. The updated spherical aberration compensation value is inputted into a spherical aberration compensator of the optical disc drive.

摘要翻译： 提供球面像差补偿方法。 测量在光盘的第一半径位置处的覆盖层的第一厚度。 测量在光盘的第二半径位置处的覆盖层的第二厚度。 在光盘的第三半径位置处进行球面像差校准，以获得最佳的球面像差补偿值。 根据第一和第二半径位置，第一和第二厚度以及在第三半径位置处的最佳球面像差补偿值，获得球面像差补偿公式。 然后，通过根据光盘驱动器的光学拾取头所在的第四半径位置的球面像差补偿公式来计算更新的球面像差补偿值。 更新的球面像差补偿值被输入到光盘驱动器的球面像差补偿器。