Parallel decision-feedback decoder and method for joint equalizing and decoding of incoming data stream
    1.
    发明授权
    Parallel decision-feedback decoder and method for joint equalizing and decoding of incoming data stream 有权
    并行决策反馈解码器和联合均衡解码输入数据流的方法

    公开(公告)号:US07188302B2

    公开(公告)日:2007-03-06

    申请号:US10709099

    申请日:2004-04-14

    IPC分类号: H03M13/03

    摘要: A P-tap parallel decision-feedback decoder (PDFD) is also disclosed. The PDFD includes a plurality of state shift registers. For each state of a code utilized by an incoming data stream, a survivor metric for a state is shifted into the first shift register for the state. Each first shift register has M cells. A decision device is coupled to the first shift registers for outputting a first survivor metric according to survivor metrics in the first shift registers. A second shift register has N delay cells, and the first survivor metric is shifted into the second shift register.

    摘要翻译: 还公开了P抽头并行判决反馈解码器(PDFD)。 PDFD包括多个状态移位寄存器。 对于由输入数据流使用的代码的每个状态,状态的幸存度量被移位到该状态的第一移位寄存器中。 每个第一移位寄存器具有M个单元。 决定装置耦合到第一移位寄存器,用于根据第一移位寄存器中的幸存度量输出第一存活器度量。 第二移位寄存器具有N个延迟单元,并且第一存储器度量被移入第二移位寄存器。

    APPARATUS FOR DEMODULATING ADDRESS IN PRE-GROOVE SYMBOLS AND APPARATUS FOR DECODING PRE-PIT SYMBOLS
    2.
    发明申请
    APPARATUS FOR DEMODULATING ADDRESS IN PRE-GROOVE SYMBOLS AND APPARATUS FOR DECODING PRE-PIT SYMBOLS 失效
    用于解除预编码符号的地址的装置和解码前缀符号的装置

    公开(公告)号:US20070280072A1

    公开(公告)日:2007-12-06

    申请号:US11755237

    申请日:2007-05-30

    IPC分类号: G11B20/10

    摘要: The invention provides an apparatus for demodulating an Address In Pre-groove (ADIP) symbol. The ADIP symbol is carried by a wobble signal of an optical disk and comprises a series of ADIP bits permuted according to one of a plurality of permutation patterns to make up the ADIP symbol. A wobble extraction module extracts the wobble signal from the optical disk. A reference wobble generator generates a reference wobble with the same frequency and phase as a fundamental frequency and phase of a positive wobble cycle of the wobble signal. A waveform difference measurement module then measures a difference between the wobble signal and the reference wobble to obtain a series of difference measurement values respectively corresponding to the ADIP bits. A pattern matching module then compares probabilities of the permutation of the ADIP bits agreeing with each of the permutation patterns according to the difference measurement values to determine the ADIP symbol.

    摘要翻译: 本发明提供了一种用于解调预编码地址(ADIP)符号的装置。 ADIP符号由光盘的摆动信号承载,并且包括根据多个置换模式中的一个置换的一系列ADIP位,以构成ADIP符号。 摆动提取模块从光盘中提取摆动信号。 参考摆动发生器产生与摆动信号的正摆动周期的基频和相位相同的频率和相位的参考摆动。 波形差测量模块然后测量摆动信号和参考摆动之间的差异,以获得分别对应于ADIP位的一系列差分测量值。 模式匹配模块然后根据差值测量值来比较与每个置换模式一致的ADIP位置的概率,以确定ADIP符号。

    DAC/ADC system
    3.
    发明授权
    DAC/ADC system 有权
    DAC / ADC系统

    公开(公告)号:US07193547B2

    公开(公告)日:2007-03-20

    申请号:US10778403

    申请日:2004-02-17

    IPC分类号: H03M1/66

    CPC分类号: H03M3/496 H03M3/50

    摘要: A DAC/ADC system for generating reference clocks for DAC/ADC by a look-up table method. The DAC/ADC system includes a sampling signal generator, a DAC, and an ADC. The sampling signal generator generates first and second sampling signals according to first and second reference clocks by a look-up table method, respectively. The DAC receives a digital input signal and converts it into an analog output signal according to the first sampling signal. The ADC receives an analog input signal and converts it into a digital output signal according to the second sampling signal.

    摘要翻译: DAC / ADC系统,用于通过查找表方法生成DAC / ADC的参考时钟。 DAC / ADC系统包括采样信号发生器,DAC和ADC。 采样信号发生器分别通过查找表方法根据第一和第二参考时钟产生第一和第二采样信号。 DAC接收数字输入信号,并根据第一采样信号将其转换为模拟输出信号。 ADC接收模拟输入信号,并根据第二采样信号将其转换为数字输出信号。

    Apparatus for demodulating address in pre-groove symbols and apparatus for decoding pre-pit symbols
    4.
    发明授权
    Apparatus for demodulating address in pre-groove symbols and apparatus for decoding pre-pit symbols 失效
    用于解调前槽符号中的地址的装置和用于解码预凹坑符号的装置

    公开(公告)号:US07693012B2

    公开(公告)日:2010-04-06

    申请号:US11755237

    申请日:2007-05-30

    IPC分类号: G11B7/00

    摘要: The invention provides an apparatus for demodulating an Address In Pre-groove (ADIP) symbol. The ADIP symbol is carried by a wobble signal of an optical disk and comprises a series of ADIP bits permuted according to one of a plurality of permutation patterns to make up the ADIP symbol. A wobble extraction module extracts the wobble signal from the optical disk. A reference wobble generator generates a reference wobble with the same frequency and phase as a fundamental frequency and phase of a positive wobble cycle of the wobble signal. A waveform difference measurement module then measures a difference between the wobble signal and the reference wobble to obtain a series of difference measurement values respectively corresponding to the ADIP bits. A pattern matching module then compares probabilities of the permutation of the ADIP bits agreeing with each of the permutation patterns according to the difference measurement values to determine the ADIP symbol.

    摘要翻译: 本发明提供了一种用于解调预编码地址(ADIP)符号的装置。 ADIP符号由光盘的摆动信号承载,并且包括根据多个置换模式中的一个置换的一系列ADIP位,以构成ADIP符号。 摆动提取模块从光盘中提取摆动信号。 参考摆动发生器产生与摆动信号的正摆动周期的基频和相位相同的频率和相位的参考摆动。 波形差测量模块然后测量摆动信号和参考摆动之间的差异,以获得分别对应于ADIP位的一系列差分测量值。 模式匹配模块然后根据差值测量值来比较与每个置换模式一致的ADIP位置的概率,以确定ADIP符号。

    PARALLEL DECISION-FEEDBACK DECODER AND METHOD FOR JOINT EQUALIZING AND DECODING OF INCOMING DATA STREAM
    5.
    发明申请
    PARALLEL DECISION-FEEDBACK DECODER AND METHOD FOR JOINT EQUALIZING AND DECODING OF INCOMING DATA STREAM 有权
    并行决策反馈解码器和接收数据流的联合平均化和解码方法

    公开(公告)号:US20050235194A1

    公开(公告)日:2005-10-20

    申请号:US10709099

    申请日:2004-04-14

    摘要: A P-tap parallel decision-feedback decoder (PDFD) is also disclosed. The PDFD includes a plurality of state shift registers. For each state of a code utilized by an incoming data stream, a survivor metric for a state is shifted into the first shift register for the state. Each first shift register has M cells. A decision device is coupled to the first shift registers for outputting a first survivor metric according to survivor metrics in the first shift registers. A second shift register has N delay cells, and the first survivor metric is shifted into the second shift register.

    摘要翻译: 还公开了P抽头并行判决反馈解码器(PDFD)。 PDFD包括多个状态移位寄存器。 对于由输入数据流使用的代码的每个状态,状态的幸存度量被移位到该状态的第一移位寄存器中。 每个第一移位寄存器具有M个单元。 决定装置耦合到第一移位寄存器,用于根据第一移位寄存器中的幸存度量输出第一存活器度量。 第二移位寄存器具有N个延迟单元,并且第一存储器度量被移入第二移位寄存器。