Error-Correcting Apparatus and Method Thereof
    21.
    发明申请
    Error-Correcting Apparatus and Method Thereof 审中-公开
    误差校正装置及其方法

    公开(公告)号:US20110167323A1

    公开(公告)日:2011-07-07

    申请号:US12683915

    申请日:2010-01-07

    IPC分类号: H03M13/41 G06F11/10

    摘要: The invention discloses an error-correcting apparatus for decoding an input signal by using a Viterbi algorithm to generate a Viterbi-decoded signal, including an erasure unit and a decoder. The erasure unit is configured to generate at least one logic signal according to at least one path metric difference of path metrics in the Viterbi algorithm, and generate erasure information, wherein the erasure information indicates data reliability of at least one location of the Viterbi-decoded signal. The decoder is configured to decode the Viterbi-decoded signal according to the erasure information.

    摘要翻译: 本发明公开了一种用于通过使用维特比算法对输入信号进行解码以产生包括擦除单元和解码器的维特比解码信号的纠错装置。 擦除单元被配置为根据维特比算法中的路径度量的至少一个路径度量差产生至少一个逻辑信号,并且生成擦除信息,其中擦除信息指示维特比解码器的至少一个位置的数据可靠性 信号。 解码器被配置为根据擦除信息对维特比解码信号进行解码。

    CONTROLLER AND METHOD EMPLOYED IN OPTICAL STORAGE APPARATUS FOR GENERATING CONTROL SIGNALS EACH HAVING MINIMUM TRANSMISSION PULSE LENGTH CORRESPONDING TO MORE THAN ONE POWER SYMBOL PERIOD
    22.
    发明申请
    CONTROLLER AND METHOD EMPLOYED IN OPTICAL STORAGE APPARATUS FOR GENERATING CONTROL SIGNALS EACH HAVING MINIMUM TRANSMISSION PULSE LENGTH CORRESPONDING TO MORE THAN ONE POWER SYMBOL PERIOD 有权
    控制器和方法在光存储设备上生成具有最大传输脉冲长度的控制信号,其对应于超过一个功率符号周期

    公开(公告)号:US20110075530A1

    公开(公告)日:2011-03-31

    申请号:US12602103

    申请日:2009-11-23

    IPC分类号: G11B19/02

    CPC分类号: G11B7/126 G11B7/00456

    摘要: A controller of an optical storage apparatus for generating a plurality of control signals is provided. The controller includes a code generator implemented for determining a plurality of control codes according to an input data associated with data recording, and generating the control signals to deliver the control codes. Each of the control codes represents one power level. Besides, regarding each of the control signals, a minimum transmission pulse length thereof corresponds to more than one power symbol period.

    摘要翻译: 提供了一种用于产生多个控制信号的光存储装置的控制器。 该控制器包括一个代码发生器,用于根据与数据记录有关的输入数据确定多个控制代码,并产生控制信号以传送控制代码。 每个控制代码表示一个功率级。 此外,关于每个控制信号,其最小传输脉冲长度对应于多于一个功率符号周期。

    Apparatus of maximum likelihood signal detection
    23.
    发明授权
    Apparatus of maximum likelihood signal detection 有权
    最大似然信号检测装置

    公开(公告)号:US07894553B2

    公开(公告)日:2011-02-22

    申请号:US11652500

    申请日:2007-01-12

    IPC分类号: H04L27/06

    CPC分类号: H04L1/0054 G11B20/10009

    摘要: An apparatus for maximum likelihood signal detection comprises a reference data unit, a branch metric unit, an add-compare-select unit, a path metric unit and a path memory, and is used for detecting maximum likelihood signal. The reference information unit, the branch metric unit, the add-compare-select unit or the path metric unit can further comprise a multiplexer to removing unnecessary paths according to a control signal. The control signal is adjusted according to channel response, coding constraint or channel memory length.

    摘要翻译: 用于最大似然信号检测的装置包括参考数据单元,分支度量单元,加法比较选择单元,路径度量单元和路径存储器,并且用于检测最大似然信号。 参考信息单元,分支度量单元,加法比较选择单元或路径度量单元还可以包括根据控制信号去除不必要路径的多路复用器。 控制信号根据通道响应,编码约束或通道存储器长度进行调整。

    Method of computing path metrics in a high-speed Viterbi detector and related apparatus thereof
    24.
    发明授权
    Method of computing path metrics in a high-speed Viterbi detector and related apparatus thereof 有权
    在高速维特比检测器及其相关装置中计算路径度量的方法

    公开(公告)号:US07852960B2

    公开(公告)日:2010-12-14

    申请号:US11161202

    申请日:2005-07-26

    IPC分类号: H04L5/12

    摘要: A path metric computing method applied in a high-speed Viterbi detector and related apparatus thereof are disclosed. The path metric computing apparatus includes a comparator for generating a control signal according a plurality of previous path metrics, a combining circuit for generating a plurality of first output values according to the previous path metrics and branch costs of a plurality of branches of a current state, and a multiplexer, electrically connected to the comparator and the combining circuit, for determining a first path metric of the current state according to the control signal and the output values.

    摘要翻译: 公开了一种应用于高速维特比检测器中的路径度量计算方法及其相关装置。 路径度量计算装置包括:比较器,用于根据多个先前路径量度生成控制信号;组合电路,用于根据先前的路径度量和当前状态的多个分支的分支成本生成多个第一输出值 以及电连接到比较器和组合电路的多路复用器,用于根据控制信号和输出值确定当前状态的第一路径度量。

    Apparatus and method for demodulating input signal modulated from reference signal and data signal
    25.
    发明授权
    Apparatus and method for demodulating input signal modulated from reference signal and data signal 有权
    用于解调从参考信号和数据信号调制的输入信号的装置和方法

    公开(公告)号:US07791994B2

    公开(公告)日:2010-09-07

    申请号:US12129666

    申请日:2008-05-29

    IPC分类号: G11B7/00

    摘要: An apparatus and method for demodulating an input signal modulated from a reference signal and a data signal are disclosed. The apparatus includes a determining unit, a first calculating unit, and a comparing unit. The determining unit is utilized for determining a plurality of first calculating timings of changing different calculating modes according to the input signal. The first calculating unit is coupled to the determining unit and utilized for generating a first calculating result of the input signal according to the first calculating timings and the calculating modes thereof. The comparing unit is coupled to the first calculating unit and utilized for generating a comparing result according to the first calculating result of the input signal and a threshold setting, and for outputting a demodulated data of the input signal according to the comparing result.

    摘要翻译: 公开了一种用于解调从参考信号和数据信号调制的输入信号的装置和方法。 该装置包括确定单元,第一计算单元和比较单元。 确定单元用于根据输入信号确定改变不同计算模式的多个第一计算定时。 第一计算单元耦合到确定单元,用于根据第一计算定时及其计算模式产生输入信号的第一计算结果。 比较单元耦合到第一计算单元,用于根据输入信号的第一计算结果和阈值设置产生比较结果,并且用于根据比较结果输出输入信号的解调数据。

    Method and apparatus for RLL code encoding and decoding
    26.
    发明授权
    Method and apparatus for RLL code encoding and decoding 有权
    用于RLL码编码和解码的方法和装置

    公开(公告)号:US07330137B2

    公开(公告)日:2008-02-12

    申请号:US10707419

    申请日:2003-12-12

    申请人: Pi-Hai Liu

    发明人: Pi-Hai Liu

    IPC分类号: H03M5/00

    CPC分类号: H03M5/145

    摘要: An encoder and decoder for encoding data bits of a binary source signal into a stream of data bits of a binary channel signal and vice versa includes a conversion table used to map m-bit source words to codeword having a variable code length with a basic code length of n bits and a total code length of n*i bits, i being an integer of at least 1. The conversion table preserves the parity of the m-bit source words over the codeword and limits a characteristic of the codeword specified for each starting bit position in the code word.

    摘要翻译: 用于将二进制源信号的数据位编码为二进制信道信号的数据位流的反编码器和解码器包括用于将m位源字映射到具有可变代码长度的码字的转换表,其具有基本代码 n比特的长度和n * i比特的总码长度,i是至少为1的整数。转换表保留码字上的m比特源字的奇偶校验,并限制为每一个指定的码字的特性 在代码字中开始位位置。

    METHODS AND SYSTEMS FOR TUNING AT LEAST ONE WRITE STRATEGY PARAMETER OF AN OPTICAL STORAGE DEVICE
    27.
    发明申请
    METHODS AND SYSTEMS FOR TUNING AT LEAST ONE WRITE STRATEGY PARAMETER OF AN OPTICAL STORAGE DEVICE 有权
    用于调整光存储设备的最小一个写策略参数的方法和系统

    公开(公告)号:US20080013431A1

    公开(公告)日:2008-01-17

    申请号:US11773432

    申请日:2007-07-04

    IPC分类号: G11B7/0045

    摘要: A method for tuning a write strategy parameter of an optical storage device, includes: writing a segment of data according to a plurality of write strategies; reading the data back and detecting a plurality of lengths, each length corresponding to a pit or a land on an optical storage medium accessed by the optical storage device; performing calculations according to the lengths and a plurality of data types to generate a plurality of calculation results, each of the data types corresponding to at least a specific target pit length or at least a specific target land length; and utilizing the calculation results to determine a proper write strategy.

    摘要翻译: 一种用于调整光学存储设备的写入策略参数的方法,包括:根据多个写入策略写入数据段; 读取数据并检测多个长度,每个长度对应于由光学存储设备访问的光存储介质上的凹坑或平台; 根据长度和多个数据类型执行计算以产生多个计算结果,每个数据类型至少对应于特定目标凹坑长度或至少特定目标区域长度; 并利用计算结果确定适当的写入策略。

    Read channel apparatus for an optical storage system
    28.
    发明授权
    Read channel apparatus for an optical storage system 有权
    用于光存储系统的读通道装置

    公开(公告)号:US07245658B2

    公开(公告)日:2007-07-17

    申请号:US11352574

    申请日:2006-02-13

    IPC分类号: H03H7/40

    摘要: A read channel apparatus is disclosed for reading data recorded on an optical storage system. An exemplary sampling device samples an analog read signal generating from the optical storage system to generate a sequence of sample values. A subtractor subtracts an estimated DC offset from the sample values to generate a sequence of DC-removed sample values. An equalizer equalizes DC-removed sample values in accordance with a target spectrum to generate a sequence of equalized sample values. First and second interpolators interpolate the equalized sample values to respectively generate sequences of even-time sample values and odd-time sample values. A data sequence composed of the even-time and the odd-time sample values is substantially synchronized to the baud rate. A timing recovery controller controls the interpolators to synchronize the even-time and odd-time sample values to the baud rate.

    摘要翻译: 公开了一种用于读取记录在光存储系统上的数据的读通道装置。 示例性采样设备对从光学存储系统生成的模拟读取信号进行采样以产生一系列样本值。 减法器从样本值中减去估计的直流偏移量,以产生一个DC去除样本值的序列。 均衡器根据目标光谱对DC去除的样本值进行均衡,以生成均衡样本值的序列。 第一和第二内插器插值均衡的采样值,分别产生偶数采样值和奇数时间采样值的序列。 由偶数和奇数时间采样值组成的数据序列基本上与波特率同步。 定时恢复控制器控制内插器将偶数和奇数时间采样值同步到波特率。

    SYSTEM AND METHOD FOR MODULATION AND DEMODULATION USING CODE SUBSET CONVERSION
    29.
    发明申请
    SYSTEM AND METHOD FOR MODULATION AND DEMODULATION USING CODE SUBSET CONVERSION 有权
    使用代码转换的调制和解调的系统和方法

    公开(公告)号:US20070008194A1

    公开(公告)日:2007-01-11

    申请号:US11277351

    申请日:2006-03-23

    IPC分类号: H03M7/34

    摘要: Disclosed is a method for converting an input code into an output code. The method includes: determining a plurality of input code subsets of the input code; converting the input code subsets into a plurality of output code subsets, respectively; and merging the output code subsets to generate the output code.

    摘要翻译: 公开了一种将输入代码转换为输出代码的方法。 该方法包括:确定输入代码的多个输入代码子集; 将输入代码子集分别转换成多个输出代码子集; 并合并输出代码子集以生成输出代码。

    Read channel apparatus for an optical storage system
    30.
    发明申请
    Read channel apparatus for an optical storage system 有权
    用于光存储系统的读通道装置

    公开(公告)号:US20060133255A1

    公开(公告)日:2006-06-22

    申请号:US11352574

    申请日:2006-02-13

    IPC分类号: G11B20/00

    摘要: A read channel apparatus is disclosed for reading data recorded on an optical storage system. An exemplary sampling device samples an analog read signal generating from the optical storage system to generate a sequence of sample values. A subtractor subtracts an estimated DC offset from the sample values to generate a sequence of DC-removed sample values. An equalizer equalizes DC-removed sample values in accordance with a target spectrum to generate a sequence of equalized sample values. First and second interpolators interpolate the equalized sample values to respectively generate sequences of even-time sample values and odd-time sample values. A data sequence composed of the even-time and the odd-time sample values is substantially synchronized to the baud rate. A timing recovery controller controls the interpolators to synchronize the even-time and odd-time sample values to the baud rate.

    摘要翻译: 公开了一种用于读取记录在光存储系统上的数据的读通道装置。 示例性采样设备对从光学存储系统生成的模拟读取信号进行采样以产生一系列样本值。 减法器从样本值中减去估计的直流偏移量,以产生一个DC去除样本值的序列。 均衡器根据目标光谱对DC去除的样本值进行均衡,以生成均衡样本值的序列。 第一和第二内插器插值均衡的采样值,分别产生偶数采样值和奇数时间采样值的序列。 由偶数和奇数时间采样值组成的数据序列基本上与波特率同步。 定时恢复控制器控制内插器将偶数和奇数时间采样值同步到波特率。