公开(公告)号：EP1886313B1

公开(公告)日：2011-03-30

申请号：EP06771815.5

申请日：2006-06-01

Applicant: ZORAN CORPORATION

Inventor： HADDAD, Bassel

IPC: G11B20/10 ,  H03G3/20

CPC classification number: H03G3/001 ,  H03G3/3052 ,  H03G2201/202

Abstract: An automatic gain control (AGC) controls the signal amplitude at the input to an analog to digital converter (ADC) input by applying a gain that produces a desired overall amplitude resolution of the patterns actually presented by the signal delivered by the ADC converter. Short RLL patterns will have sufficient resolution for reliable extraction as a result of having sufficient overall amplitude, which thereby strengthens the ability of the read channel to correctly extract data. Moreover, the system determines correct AGC settings responsive to measurements of user data parameters. The system 0 also detects and corrects for DC offsets in the signal whose gain is controlled.

公开(公告)号：WO2007111980A1

公开(公告)日：2007-10-04

申请号：PCT/US2007/007207

申请日：2007-03-23

Applicant: ZORAN CORPORATION ,  HADDAD, Bassel ,  FINKELSTEIN, Jacob

Inventor： HADDAD, Bassel ,  FINKELSTEIN, Jacob

IPC: G01R25/08 ,  H03L7/091 ,  H03D13/00 ,  G11B27/24

CPC classification number: H03L7/091 ,  H03D13/003

Abstract: 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.

Abstract translation: 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：WO2006132908A1

公开(公告)日：2006-12-14

申请号：PCT/US2006/021247

申请日：2006-06-01

Applicant: ZORAN CORPORATION ,  HADDAD, Bassel

Inventor： HADDAD, Bassel

IPC: G11B20/10 ,  H03G3/20

CPC classification number: H03G3/001 ,  H03G3/3052 ,  H03G2201/202

Abstract: An automatic gain control (AGC) controls the signal amplitude at the input to an analog to digital converter (ADC) input by applying a gain that produces a desired overall amplitude resolution of the patterns actually presented by the signal delivered by the ADC converter. Short RLL patterns will have sufficient resolution for reliable extraction as a result of having sufficient overall amplitude, which thereby strengthens the ability of the read channel to correctly extract data. Moreover, the system determines correct AGC settings responsive to measurements of user data parameters. The system 0 also detects and corrects for DC offsets in the signal whose gain is controlled.

Abstract translation: 自动增益控制（AGC）通过施加增益来控制模数转换器（ADC）输入端的信号幅度，该增益产生由ADC转换器传送的信号实际呈现的模式的期望的总幅度分辨率。 由于具有足够的总体幅度，短的RLL图案将具有足够的分辨率以进行可靠的提取，从而增强读取通道正确提取数据的能力。 此外，系统根据用户数据参数的测量来确定正确的AGC设置。 系统0还检测并校正增益受控的信号中的直流偏移。

公开(公告)号：EP1886313A1

公开(公告)日：2008-02-13

申请号：EP06771815.5

申请日：2006-06-01

Applicant: ZORAN CORPORATION

Inventor： HADDAD, Bassel

IPC: G11B20/10 ,  H03G3/20

CPC classification number: H03G3/001 ,  H03G3/3052 ,  H03G2201/202

Abstract: An automatic gain control (AGC) controls the signal amplitude at the input to an analog to digital converter (ADC) input by applying a gain that produces a desired overall amplitude resolution of the patterns actually presented by the signal delivered by the ADC converter. Short RLL patterns will have sufficient resolution for reliable extraction as a result of having sufficient overall amplitude, which thereby strengthens the ability of the read channel to correctly extract data. Moreover, the system determines correct AGC settings responsive to measurements of user data parameters. The system 0 also detects and corrects for DC offsets in the signal whose gain is controlled.

公开(公告)号：WO2007047184A2

公开(公告)日：2007-04-26

申请号：PCT/US2006/039310

申请日：2006-10-06

Applicant: ZORAN CORPORATION ,  HADDAD, Bassel ,  FINKELSTEIN, Jacob

Inventor： HADDAD, Bassel ,  FINKELSTEIN, Jacob

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

Abstract: 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.

Abstract translation: 用于在DVD上的特定位置处记录数据的方法和设备包括在从先前出现的摆动同步和八至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。 该方法和设备还使用锁相环来恢复摆动信号，包括摆动同步，并计算摆动同步和8至14调制同步之间的相位漂移，并施加与读取时钟锁相兼容的补偿分布 循环，到摆动同步锁相环。

公开(公告)号：WO2007021778A2

公开(公告)日：2007-02-22

申请号：PCT/US2006/031095

申请日：2006-08-09

Applicant: ZORAN CORPORATION ,  HADDAD, Bassel ,  POPPLEWELL, Andrew

Inventor： HADDAD, Bassel ,  POPPLEWELL, Andrew

IPC: G11B7/00 ,  G11B7/005 ,  G11B5/09

CPC classification number: G11B27/24 ,  G11B7/0053 ,  G11B27/36

Abstract: A method and apparatus for calibrating the slice level of a pulse detector monitors the quality of the detected pulse signal to determine and optimize slice level. The method practiced may include two parts, including a coarse stage and a fine stage. The method practiced may further include a continuous adjustment mode of operation.

Abstract translation: 用于校准脉冲检测器的限幅电平的方法和装置监测检测到的脉冲信号的质量以确定和优化限幅电平。 实践的方法可以包括两个部分，包括粗略阶段和精细阶段。 实践的方法还可以包括连续调整操作模式。