公开(公告)号：US09536535B2

公开(公告)日：2017-01-03

申请号：US13977640

申请日：2012-03-30

Applicant: Dongsheng Bi ,  Binuraj Ravindran ,  Bassel Haddad

Inventor： Dongsheng Bi ,  Binuraj Ravindran ,  Bassel Haddad

IPC: H04L27/06 ,  G10L19/16 ,  H04N7/24 ,  H04N21/438 ,  H04H20/42 ,  H04N21/443

CPC classification number: G10L19/167 ,  H04H20/426 ,  H04H2201/18 ,  H04N7/24 ,  H04N21/4382 ,  H04N21/4435 ,  H04N2007/246

Abstract: Described herein are systems, methods and apparatus for decoding in-band on-channel signals and extracting audio and data signals. Memory requirements are reduced by selectively filtering a bit stream of data in the signal so that services of interest which are encoded therein are processed. A single pool of memory may be shared between physical layer and data link layer processing. Memory in this pool may be allocated dynamically between processing of data at the physical and data link layers. When the available memory is not sufficient to support the required services, the dynamic allocation allows for graceful degradation.

Abstract translation: 这里描述了用于解码带内通道信号和提取音频和数据信号的系统，方法和装置。 通过选择性地过滤信号中的数据的比特流来减少存储器要求，从而处理其中编码的感兴趣的服务。 可以在物理层和数据链路层处理之间共享单个存储器池。 可以在物理层和数据链路层的数据处理之间动态地分配该池中的存储器。 当可用内存不足以支持所需的服务时，动态分配允许优雅的降级。

公开(公告)号：US07804756B2

公开(公告)日：2010-09-28

申请号：US11163237

申请日：2005-10-11

Applicant: Bassel Haddad ,  Jacob Finkelstein

Inventor： Bassel Haddad ,  Jacob Finkelstein

IPC: G11B7/00

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 phase-locked loop.

Abstract translation: 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

Applicant: Bassel Haddad ,  Jacob Finkelstein

Inventor： Bassel Haddad ,  Jacob Finkelstein

IPC: H04L7/00

CPC classification number: H03L7/091 ,  H03D13/003

Abstract: 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.

Abstract translation: 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：US07668053B2

公开(公告)日：2010-02-23

申请号：US10908992

申请日：2005-06-03

Applicant: Bassel Haddad

Inventor： Bassel Haddad

IPC: G11B7/00

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 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。 该系统还检测和校正增益受控的信号中的直流偏移。

公开(公告)号：US20070047400A1

公开(公告)日：2007-03-01

申请号：US11161605

申请日：2005-08-09

Applicant: Bassel Haddad ,  Andrew Popplewell

Inventor： Bassel Haddad ,  Andrew Popplewell

IPC: G11B7/00

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

Abstract: Abstract of the Disclosure 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: 公开的摘要用于校准脉冲检测器的限幅电平的方法和装置监视检测到的脉冲信号的质量以确定和优化限幅电平。 实施的方法可以包括两个部分，包括粗糙阶段和细小阶段。 所实施的方法还可以包括连续调节操作模式。

公开(公告)号：US07864647B2

公开(公告)日：2011-01-04

申请号：US11161605

申请日：2005-08-09

Applicant: Bassel Haddad ,  Andrew Popplewell

Inventor： Bassel Haddad ,  Andrew Popplewell

IPC: G11B7/00

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视检测到的脉冲信号的质量以确定和优化限幅电平。 实施的方法可以包括两个部分，包括粗糙阶段和细小阶段。 所实施的方法还可以包括连续调节操作模式。

公开(公告)号：US20060274620A1

公开(公告)日：2006-12-07

申请号：US10908992

申请日：2005-06-03

Applicant: Bassel Haddad

Inventor： Bassel Haddad

IPC: G11B7/00

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 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所需总体幅度分辨率。 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。 该系统还检测和校正增益受控的信号中的直流偏移。

公开(公告)号：US20140012570A1

公开(公告)日：2014-01-09

申请号：US13977640

申请日：2012-03-30

Applicant: Dongsheng Bi ,  Bomiraj Ravindran ,  Bassel Haddad

Inventor： Dongsheng Bi ,  Bomiraj Ravindran ,  Bassel Haddad

IPC: G10L19/16

CPC classification number: G10L19/167 ,  H04H20/426 ,  H04H2201/18 ,  H04N7/24 ,  H04N21/4382 ,  H04N21/4435 ,  H04N2007/246

Abstract: Described herein are systems, methods and apparatus for decoding in-band on-channel signals and extracting audio and data signals. Memory requirements are reduced by selectively filtering a bit stream of data in the signal so that services of interest which are encoded therein are processed. A single pool of memory may be shared between physical layer and data link layer processing. Memory in this pool may be allocated dynamically between processing of data at the physical and data link layers. When the available memory is not sufficient to support the required services, the dynamic allocation allows for graceful degradation.

Abstract translation: 这里描述了用于解码带内通道信号和提取音频和数据信号的系统，方法和装置。 通过选择性地过滤信号中的数据的比特流来减少存储器要求，从而处理其中编码的感兴趣的服务。 可以在物理层和数据链路层处理之间共享单个存储器池。 可以在物理层和数据链路层的数据处理之间动态地分配该池中的存储器。 当可用内存不足以支持所需的服务时，动态分配允许优雅的降级。

公开(公告)号：US20070223634A1

公开(公告)日：2007-09-27

申请号：US11277400

申请日：2006-03-24

Applicant: Bassel Haddad ,  Jacob Finkelstein

Inventor： Bassel Haddad ,  Jacob Finkelstein

IPC: H04L7/00 ,  H03D3/24

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：US20070081438A1

公开(公告)日：2007-04-12

申请号：US11163237

申请日：2005-10-11

Applicant: Bassel Haddad ,  Jacob Finkelstein

Inventor： Bassel Haddad ,  Jacob Finkelstein

IPC: G11B20/12 ,  G11B27/36

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。