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    • 2. 发明授权
    • Iterative concatenated convolutional Reed-Solomon decoding method
    • 迭代级联卷积Reed-Solomon解码方法
    • US07370258B2
    • 2008-05-06
    • US11116340
    • 2005-04-28
    • Daniel IancuHua YeJohn Glossner
    • Daniel IancuHua YeJohn Glossner
    • H03M13/29
    • H03M13/156H03M13/153H03M13/154H03M13/1585H03M13/2936H03M13/2948H03M13/4146
    • A method and apparatus for decoding a coded data stream of bits using an inner decoder, deinterleaver and an outer decoder. The outer decoder first decodes by error correction decoding for r errors per word. The decoding is terminated and a decoded word is outputted if the syndromes of the corrected word of the first decoding are all zeros. If the syndromes of the corrected word of the first decoding are not all zeros, a second decoding is performed by error decoding and erasure for the number of errors reduced by one and the number of erasures increased to two. The decoding is terminated and a decoded word is outputted if the syndromes of the corrected word of the second decoding are all zeros. If the syndromes of the corrected word of the second decoding are not all zeros, the second decoding by correcting and erasure decoding is repeated for the number of errors reduced by one and the number of erasures increased by two for each iteration of the second decoding.
    • 一种使用内部解码器,解交织器和外部解码器来解码比特编码数据流的方法和装置。 外部解码器首先通过纠错解码来解码每个字的r个错误。 如果第一解码的校正字的综合全部为零,则终止解码并输出解码字。 如果第一解码的校正字的综合不全部为零,则通过错误解码和擦除执行第二解码,将误差数量减少1,并将擦除次数增加到2。 解码结束,如果第二解码的校正字的校正子全为零,则输出解码字。 如果第二解码的校正字的综合数据不全为零,则对于每次重复的第二解码的重复次数,对于减少1的误差数和擦除次数重复进行通过校正和擦除解码的第二解码。
    • 4. 发明授权
    • Reed-Solomon decoder having a new polynomial arrangement architecture and decoding method therefor
    • Reed-Solomon解码器具有新的多项式布置架构及其解码方法
    • US06256763B1
    • 2001-07-03
    • US09172081
    • 1998-10-14
    • Kyu-taeg OhJi-sung Oh
    • Kyu-taeg OhJi-sung Oh
    • H03M1300
    • H03M13/1545H03M13/1515H03M13/1535H03M13/154H03M13/1585
    • A Reed-Solomon (RS) decoder and a decoding method therefor are provided. The RS decoder includes a calculator for iteratively calculating four polynomials R(x), Q(x), &lgr;(x), and &mgr;(x) for the modified Euclidean algorithm using input initial error locator polynomial and modified syndrome polynomial, an arranger for arranging the coefficients of the respective polynomials from the left, a generator for generating control signals for showing the effective sections of the respective polynomials using an iterative control signal for announcing the beginning of every iterative calculation, and an extractor for extracting the polynomial R(x) supplied from the calculator as an error estimator polynomial and the polynomial &lgr;(x) as an error locator polynomial on the basis of the control signals. The RS decoder is simplified since an additional degree comparing circuit and degree buffering is not necessary.
    • 提供了里德 - 所罗门(RS)解码器及其解码方法。 RS解码器包括用于使用输入初始误差定位多项式和修改的校正子多项式迭代地计算用于修改的欧几里得算法的四个多项式R(x),Q(x),lambd(x)和mu(x)的计算器, 从左侧排列各个多项式的系数,使用用于通知每次迭代计算的开始的迭代控制信号产生用于显示各个多项式的有效部分的控制信号的发生器,以及用于提取多项式R(x )作为误差估计多项式,多项式lambd(x)作为基于控制信号的误差定位多项式。 RS解码器被简化,因为不需要额外的程度比较电路和程度缓冲。
    • 5. 发明授权
    • Method of and circuit arrangement for decoding RS-coded data signals
    • 用于解码RS编码数据信号的方法和电路装置
    • US5490154A
    • 1996-02-06
    • US379109
    • 1995-01-27
    • Roland Mester
    • Roland Mester
    • G06F11/10H03M13/00H03M13/15G06F11/00
    • H03M13/1545H03M13/1515H03M13/1535H03M13/154H03M13/1585H03M13/6516
    • A method of and a circuit arrangement for decoding RS-coded data signals is which data signals may be coded both in accordance with a code generator polynomialG(x)=(x+.alpha..sup.0) (x+.alpha..sup.1) . . . (x+.alpha..sup.15)and in accordance with a code generator polynomialG(x)=(x+.alpha..sup.120)(x+.alpha..sup.121) . . . (x+.alpha..sup.135).Dependent on the relevant code generator polynomial, switching takes place between two different constant multipliers in syndrome generators, and syndromes and erasure locations which have been determined are subjected to a Euclid's algorithm for deriving error location polynomials and error value polynomials. Error locations and error values for a code generator polynomial starting with .alpha..sup.0 are computed by means of a Chien zero search. Parallel thereto, a correction factor for a code generator polynomial starting with .alpha..sup.120 is determined. The computed error values of the code generator polynomial starting with .alpha..sup.0 are multiplied by this correction factor when data signals of the code generator polynomial starting with .alpha..sup.120 are decoded.
    • 用于对RS编码的数据信号进行解码的方法和电路装置是可以根据代码生成多项式G(x)=(x +α0)(x +α1)来对数据信号进行编码的。 。 。 (x +α15),并且根据代码生成多项式G(x)=(x +α120)(x +α112)。 。 。 (x +α135)。 依赖于相关代码生成多项式,在校正子生成器中的两个不同的常数乘法器之间进行切换,并且已经确定的校正子和擦除位置经受用于导出误差位置多项式和误差值多项式的欧几里得算法。 通过Chien零搜索计算从alpha 0开始的代码生成多项式的错误位置和错误值。 与此同时,确定以α120开始的代码生成多项式的校正因子。 当以α120开始的代码生成多项式的数据信号被解码时,以α0开始的代码生成多项式的计算误差值乘以该校正因子。
    • 8. 发明授权
    • Error detection module, and error correction device including the same
    • 错误检测模块和包括相同的纠错装置
    • US08527854B2
    • 2013-09-03
    • US12901951
    • 2010-10-11
    • Trieu-Kien TruongTsung-Ching LinHsin-Chiu ChangHung-Peng Lee
    • Trieu-Kien TruongTsung-Ching LinHsin-Chiu ChangHung-Peng Lee
    • H03M13/00
    • H03M13/153H03M13/1515H03M13/154H03M13/1585H03M13/159H04L1/0045H04L1/0057
    • An error detection module includes a known-syndrome computing unit, an unknown-syndrome computing unit, and an error detection unit. The known-syndrome computing unit is operable to convert a received signal into a target signal, to obtain known syndromes based upon the target signal, and to generate an errata-locator polynomial based upon an erasure-locator polynomial and the known syndromes. The unknown-syndrome computing unit is operable to compute unknown syndromes based upon the errata-locator polynomial and the known syndromes. The error detection unit is operable to obtain a syndrome set that includes the known syndromes and the unknown syndromes, to obtain an error detection signal according to the syndrome set, and to provide an error correction module coupled thereto with the syndrome set and the error detection signal for enabling the error correction module to correct an error of the received signal.
    • 错误检测模块包括已知综合征计算单元,未知综合计算单元和错误检测单元。 已知综合征计算单元可操作以将接收的信号转换为目标信号,以基于目标信号获得已知的综合征,并且基于擦除定位多项式和已知综合征生成勘误定位多项式。 未知综合征计算单元可操作以基于勘误定位多项式和已知综合征计算未知综合征。 误差检测单元可操作以获得包括已知综合征和未知综合征的校正子集合,以根据校正子集合获得错误检测信号,并提供与校正子集合和误差检测器耦合的纠错模块 用于使纠错模块能够校正接收信号的错误的信号。
    • 9. 发明授权
    • Encoding and decoding of generalized Reed-Solomon codes using parallel processing techniques
    • 使用并行处理技术对广义Reed-Solomon码进行编码和解码
    • US08296632B1
    • 2012-10-23
    • US12479605
    • 2009-06-05
    • Mohammad Amin Shokrollahi
    • Mohammad Amin Shokrollahi
    • G06F11/00
    • H03M13/1515H03M13/1525H03M13/154H03M13/1545H03M13/156H03M13/1585H03M13/1595H03M13/6561H04L1/0043H04L1/0052H04L1/0057H04L1/0643
    • A system, computer program, and/or method for encoding data that can correct r/2 errors. The original symbols are transformed using a Fourier transform of length p. Generator polynomials are used to encode the p blocks separately, and an inverse Fourier transform is applied to obtain the redundant symbol. In a decoding system, Fourier transforms are applied to every set of p consecutive symbols of the received vector, to obtain p blocks of symbols which in total have the same size as the received vector. Next, a syndrome calculator is applied to each of these blocks to produce p syndromes. The syndromes are forwarded to a Berlekamp-Massey unit and an error locator polynomial is decimated into p parts and a Chien search is applied concurrently. A Fourier transform of length p is applied to values calculated by the Chien search, and the positions of the zeros obtained are error positions.
    • 用于编码可以校正r / 2错误的数据的系统,计算机程序和/或方法。 使用长度为p的傅里叶变换来转换原始符号。 发生器多项式用于分别对p个块进行编码,并应用傅立叶逆变换来获得冗余符号。 在解码系统中,傅里叶变换被应用于接收向量的每个p个连续符号集合,以获得总共具有与接收向量相同大小的符号的p个块。 接下来,将错误计算器应用于这些块中的每一个以产生p个综合征。 综合征被转发到Berlekamp-Massey单位,错误定位器多项式被抽取成p部分,并且Chien搜索同时被应用。 将长度为p的傅立叶变换应用于通过Chien搜索计算的值,并且获得的零点的位置是误差位置。
    • 10. 发明授权
    • Efficient high-speed Reed-Solomon decoder
    • 高效的Reed-Solomon解码器
    • US07322004B1
    • 2008-01-22
    • US11407436
    • 2006-04-20
    • Zhan YuWeishi Feng
    • Zhan YuWeishi Feng
    • H03M13/00
    • H03M13/6502H03M13/1515H03M13/153H03M13/1555H03M13/1585
    • A Reed-Solomon decoder includes an inversionless Berlekamp-Massey algorithm (iBMA) circuit with a pipelined feedback loop. A first polynomial generator generates error locator polynomial values. A discrepancy generator generates discrepancy values based on the error locator polynomial values and the scratch polynomial values. Arithmetic units are used to generate the discrepancy values are also used to generate the error locator polynomial to reduce circuit area. A first delay circuit delays the discrepancy values. A feedback loop feeds back the delayed discrepancy values to the error locator polynomial generator. An error location finder circuit communicates with the iBMA circuit and identifies error locations. An error value computation circuit communicates with at least one of the error location finder circuit and the iBMA circuit and generates error values.
    • Reed-Solomon解码器包括具有流水线反馈回路的无倒角Berlekamp-Massey算法(iBMA)电路。 第一个多项式生成器生成错误定位器多项式值。 差异发生器基于错误定位器多项式值和临时多项式值产生差异值。 用于产生差异值的算术单位也用于生成误差定位多项式以减少电路面积。 第一延迟电路延迟差异值。 反馈回路将延迟差值反馈给误差定位器多项式发生器。 错误定位器电路与iBMA电路通信并识别错误位置。 错误值计算电路与错误定位器电路和iBMA电路中的至少一个通信,并产生误差值。