公开(公告)号：US07804756B2

公开(公告)日：2010-09-28

申请号：US11163237

申请日：2005-10-11

申请人： Bassel Haddad ,  Jacob Finkelstein

发明人： Bassel Haddad ,  Jacob Finkelstein

IPC分类号： G11B7/00

CPC分类号： G11B20/10222 ,  G11B7/0053 ,  G11B7/24082 ,  G11B20/10212 ,  G11B20/10425 ,  G11B2020/1461 ,  G11B2220/216 ,  G11B2220/2562

摘要： A method and apparatus for recording data at specific locations on a DVD includes selectively detecting the occurrence of wobble sync during a window computed from previous occurrences of wobble sync and eight-to-fourteen modulation sync. The method and apparatus also uses a phase-locked loop to recover the wobble signal, including wobble sync, and computes phase drift between wobble sync and eight-to-fourteen modulation sync and applies a compensation profile, compatible with a read clock phase-locked loop, to the wobble phase-locked loop.

摘要翻译： 用于在DVD上的特定位置记录数据的方法和装置包括在从先前出现的摆动同步和八到十四调制同步计算的窗口期间选择性地检测摆动同步的发生。 该方法和装置还使用锁相环来恢复摆动信号，包括摆动同步，并且计算摆动同步和八到十四调制同步之间的相位漂移，并且应用与读时钟锁相兼容的补偿曲线 循环到摆动锁相环。

公开(公告)号：US07697650B2

公开(公告)日：2010-04-13

申请号：US11277400

申请日：2006-03-24

申请人： Bassel Haddad ,  Jacob Finkelstein

发明人： Bassel Haddad ,  Jacob Finkelstein

IPC分类号： H04L7/00

CPC分类号： H03L7/091 ,  H03D13/003

摘要： A phase measurement system for measuring phase between an input signal having a frequency and a reference signal having a substantially different frequency includes: a phase comparator having an output representing a time between a crossing of a first threshold by a clock derived from the reference signal and a predetermined time along an interval from a first sample to a second sample, where the input signal crosses a second threshold on the interval; an interpolator having an output indicative of an interpolated time of the second-threshold-crossing on the interval in the input signal; and a phase calculator which computes the phase difference by combining the phase comparator output and the interpolator output.

摘要翻译： 用于测量具有频率的输入信号和具有基本不同频率的参考信号之间的相位的相位测量系统包括：相位比较器，具有表示第一阈值与从参考信号导出的时钟的交叉之间的时间的输出和 沿着从第一样本到第二样本的间隔的预定时间，其中所述输入信号跨越所述间隔的第二阈值; 内插器，其具有指示所述输入信号中的间隔上的所述第二阈值交叉的内插时间的输出; 以及相位计算器，通过组合相位比较器输出和内插器输出来计算相位差。

公开(公告)号：US20060156190A1

公开(公告)日：2006-07-13

申请号：US11026319

申请日：2004-12-29

申请人： Jacob Finkelstein ,  Rakefet Kol ,  Asa Levinger

发明人： Jacob Finkelstein ,  Rakefet Kol ,  Asa Levinger

IPC分类号： G11C29/00

CPC分类号： H03M13/2909 ,  H03M13/1515

摘要： In a device that utilizes a memory device, the access bandwidth of the memory device is efficiently utilized by determining a set of operations to be performed on information stored in the memory device, and sorting the operations into an order so as to minimize the number of accesses to the memory device to perform the operations. The sorted operations are then performed in that order. An example of such a device is an error correction decoder, such as for use with an optical disk reader or player. The error correction decoder generates error correction data, representing error correction operations, and sorts the error correction data into multiple sets, each set for correcting the errors in a respective row of an ECC block stored in an external buffer. The error correction operations are then performed row by row.

摘要翻译： 在利用存储器件的设备中，通过确定对存储在存储器件中的信息执行的一组操作来有效地利用存储器件的访问带宽，并且将操作排序成最小化数量 访问存储器件以执行操作。 然后以该顺序执行排序的操作。 这种装置的一个例子是诸如用于光盘读取器或播放器的纠错解码器。 纠错解码器产生纠错数据，表示纠错操作，并将纠错数据分类成多组，每组设置用于校正存储在外部缓冲器中的ECC块的相应行中的错误。 然后逐行执行纠错操作。

公开(公告)号：US20070223634A1

公开(公告)日：2007-09-27

申请号：US11277400

申请日：2006-03-24

申请人： Bassel Haddad ,  Jacob Finkelstein

发明人： Bassel Haddad ,  Jacob Finkelstein

IPC分类号： H04L7/00 ,  H03D3/24

CPC分类号： H03L7/091 ,  H03D13/003

摘要： A phase measurement system for measuring a phase difference between an input signal and a reference signal, comprises: a phase comparator having a first input receiving a first sample of the input signal and a second sample of the input signal and having a second input receiving a clock derived from the reference signal, the phase comparator having an output representing a time between a crossing of a first threshold by the clock and a predetermined time along an interval from the first sample to the second sample where the input signal crosses a second threshold on the interval; an interpolator coupled to the first input and having an output indicative of an interpolated time of the second-threshold-crossing on the interval in the input signal; and a phase calculator coupled to the phase comparator output and the interpolator output and which computes the phase difference by combining the phase comparator output and the interpolator output.

摘要翻译： 一种用于测量输入信号和参考信号之间的相位差的相位测量系统，包括：相位比较器，具有接收所述输入信号的第一采样的第一输入端和所述输入信号的第二采样，并具有接收第 从参考信号导出的时钟，相位比较器具有表示在第一阈值与时钟交叉之间的时间的输出和沿着从第一采样到第二采样的间隔的预定时间，其中输入信号跨越第二阈值 间隔; 内插器，其耦合到所述第一输入端，并且具有指示所述输入信号中的间隔上的所述第二阈值交叉的内插时间的输出; 以及相位计算器，其耦合到相位比较器输出和内插器输出，并且通过组合相位比较器输出和内插器输出来计算相位差。

公开(公告)号：US20070081438A1

公开(公告)日：2007-04-12

申请号：US11163237

申请日：2005-10-11

申请人： Bassel Haddad ,  Jacob Finkelstein

发明人： Bassel Haddad ,  Jacob Finkelstein

IPC分类号： G11B20/12 ,  G11B27/36

CPC分类号： G11B20/10222 ,  G11B7/0053 ,  G11B7/24082 ,  G11B20/10212 ,  G11B20/10425 ,  G11B2020/1461 ,  G11B2220/216 ,  G11B2220/2562

摘要： A method and apparatus for recording data at specific locations on a DVD includes selectively detecting the occurrence of wobble sync during a window computed from previous occurrences of wobble sync and eight-to-fourteen modulation sync. The method and apparatus also uses a phase-locked loop to recover the wobble signal, including wobble sync, and computes phase drift between wobble sync and eight-to-fourteen modulation sync and applies a compensation profile, compatible with a read clock phase-locked loop, to the wobble sync phase-locked loop.

摘要翻译： 用于在DVD上的特定位置记录数据的方法和装置包括在从先前出现的摆动同步和八到十四调制同步计算的窗口期间选择性地检测摆动同步的发生。 该方法和装置还使用锁相环来恢复摆动信号，包括摆动同步，并且计算摆动同步和八到十四调制同步之间的相位漂移，并且应用与读时钟锁相兼容的补偿曲线 循环到摆动同步锁相环。