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    • 91. 发明申请
    • Encoding method and apparatus for cross interleaved cyclic codes
    • 用于交叉交织循环码的编码方法和装置
    • US20080022192A1
    • 2008-01-24
    • US11902975
    • 2007-09-27
    • Yi-Kwang HuJin-Bin YangHsi-Chia Chang
    • Yi-Kwang HuJin-Bin YangHsi-Chia Chang
    • H03M13/00
    • H03M13/611H03M13/1515H03M13/29H03M13/2924
    • The invention relates to an encoding method for encoding a codeword to obtain a parity code. The code is embedded in the codeword and divides the codeword to have intermediate symbol locations between a first and a second set of data symbols. Each data symbol forms a coefficient. The first and the second set of data symbols and the parity code respectively form a first polynomial (M1(x)), a second polynomial (M2(x)), and a parity code polynomial (R(x)). The method comprises: first, designing a first code generator polynomial (G1(x)); next, dividing M1(x)x4 by G1(x) to obtain a first remainder polynomial (R1(x)); next, generating a second code generator polynomial (G2(x)) from G1(x); next, generating a third polynomial (M3(x)); next, dividing M3(x)x4 by G2(x) to obtain a second remainder polynomial (R2(x)); next, performing an adding procedure to R1(x) and R2(x) to obtain R(x); finally, obtaining the parity code from each coefficient of R(x).
    • 本发明涉及用于编码码字以获得奇偶校验码的编码方法。 代码被嵌入在码字中并且将码字划分成在第一和第二组数据符号之间具有中间符号位置。 每个数据符号形成系数。 第一和第二组数据符号和奇偶校验码分别形成第一多项式(M 1(x)),第二多项式(M 2(x))和奇偶码多项式(R(x)))。 该方法包括:首先设计第一代码生成多项式(G 1(x)); 接下来,将M 1(x)x 4+除以G 1(x)以获得第一余数多项式(R 1(x)); 接下来,从G 1(x)生成第二代码生成多项式(G 2(x)); 接下来,生成第三多项式(M 3(x)); 接下来,将M 3(x)×4×4除以G 2(x)以获得第二余数多项式(R 2(x)); 接下来,对R 1(x)和R 2(x)执行加法以获得R(x); 最后,从R(x)的每个系数获得奇偶校验码。
    • 92. 发明授权
    • Method and apparatus for decoding error correction code
    • 纠错码解码方法及装置
    • US07139961B2
    • 2006-11-21
    • US10468322
    • 2002-02-04
    • Alexander Kravtchenko
    • Alexander Kravtchenko
    • H03M13/00
    • H03M13/293G11B20/1833H03M13/151H03M13/29H03M13/2924
    • CIRC (cross interleave Reed-Solomon code) cods decoding includes for each input frame a one-symbol delay operation of every second data symbol and the inversion of parity symbols, C1 word decoding, de-interleaving, C2 word decoding, and a two-symbol delay operation before output. The error correction capabilities can be improved if the C1 word decoding, de-interleaving and C2 word decoding are carried out twice (double pass operation) before the two symbol delay operation and output. The invention allows double pass operation as well as single pass operation and uses a single memory with minimum capacity, wherein to three parts of the memory specific operations are assigned and wherein the memory is controlled in a special way.
    • CIRC(交叉交织Reed-Solomon码)码解码包括对于每个输入帧,每第二数据符号的一符号延迟操作和奇偶校验符号的反转,C1字解码,解交织,C2字解码, 输出前的符号延迟操作。 如果在两个符号延迟操作和输出之前执行C1字解码,解交织和C2字解码两次(双通操作),则可以改善纠错能力。 本发明允许双程操作和单程操作,并且使用具有最小容量的单个存储器,其中分配存储器特定操作的三个部分,并且其中以特殊方式控制存储器。
    • 93. 发明申请
    • Encoding method and apparatus for cross interleaved cyclic codes
    • 用于交叉交织循环码的编码方法和装置
    • US20050120285A1
    • 2005-06-02
    • US10969949
    • 2004-10-22
    • Yi-Kwang HuJin-Bin YangHsi-Chia Chang
    • Yi-Kwang HuJin-Bin YangHsi-Chia Chang
    • H03M13/15H03M13/29H03M13/00
    • H03M13/611H03M13/1515H03M13/29H03M13/2924
    • The invention relates to an encoding method for encoding a codeword to obtain a parity code. The code is embedded in the codeword and divides the codeword to have intermediate symbol locations between a first and a second set of data symbols. Each data symbol forms a coefficient. The first and the second set of data symbols and the parity code respectively form a first polynomial (M1(x)), a second polynomial (M2(x)), and a parity code polynomial (R(x)). The method comprises: first, designing a first code generator polynomial (G1(x)); next, dividing M1(x)x4 by G1(x) to obtain a first remainder polynomial (R1(x)); next, generating a second code generator polynomial (G2(x)) from G1(x); next, generating a third polynomial (M3(x)); next, dividing M3(x)x4 by G2(x) to obtain a second remainder polynomial (R2(x)); next, performing an adding procedure to R1(x) and R2(x) to obtain R(x); finally, obtaining the parity code from each coefficient of R(x).
    • 本发明涉及用于编码码字以获得奇偶校验码的编码方法。 代码被嵌入在码字中并且将码字划分成在第一和第二组数据符号之间具有中间符号位置。 每个数据符号形成系数。 第一和第二组数据符号和奇偶校验码分别形成第一多项式(M 1(x)),第二多项式(M 2(x))和奇偶码多项式(R(x)))。 该方法包括:首先设计第一代码生成多项式(G 1(x)); 接下来,将M 1(x)x 4+除以G 1(x)以获得第一余数多项式(R 1(x)); 接下来,从G 1(x)生成第二代码生成多项式(G 2(x)); 接下来,生成第三多项式(M 3(x)); 接下来,将M 3(x)×4×4除以G 2(x)以获得第二余数多项式(R 2(x)); 接下来,对R 1(x)和R 2(x)执行加法以获得R(x); 最后,从R(x)的每个系数获得奇偶校验码。
    • 94. 发明授权
    • Iterative decoding of multiply-added error-correcting codes in a data processing error correction device
    • 在数据处理误差校正装置中对相加纠错码进行迭代解码
    • US06611939B1
    • 2003-08-26
    • US09622859
    • 2000-10-06
    • Nobuaki Noguchi
    • Nobuaki Noguchi
    • G11C2900
    • G11B20/1833H03M13/2924H03M13/2927H03M13/2948
    • A data error correction device which performs iterative decoding for data to which error-correcting codes are multiply added is provided with a means 14 for detecting the presence or absence of uncorrectable codewords in the present decoding, a means 15 containing the uncorrectability detection result, corresponding to the immediately preceding decoding, a means 12 for detecting that syndromes of all codewords in the present decoding are zero, and a means 16 for judging the termination of the correction processing to terminate the iterative decoding when no uncorrectable codeword is detected in the immediately preceding decoding and the syndromes of all codewords are zero in the present decoding. Therefore, when the iterative decoding for data to which the error-correcting codes are multiply added is performed, the number of times of the iterative decoding can be reduced with ensuring the reliability of data as in the case where the data are corrected the maximum number of times, thereby realizing the reduced power consumption in the error correction processing.
    • 对对纠错码进行乘法相加的数据执行迭代解码的数据纠错装置具有用于检测本解码中是否存在不可校正码字的装置14,包含不可校正性检测结果的装置15,对应于 对于紧接在前的解码,用于检测本解码中的所有码字的综合征的装置12是零,以及用于当在紧邻的前一个中没有检测到不可纠正的码字时,判断终止迭代解码的校正处理的终止的装置16 在本解码中,所有码字的解码和校验子都为零。 因此,当执行对纠错码进行乘法相加的数据的迭代解码时,可以减少迭代解码的次数,同时确保数据的可靠性,如数据校正最大数量的情况 从而实现了纠错处理中的功耗降低。
    • 96. 发明授权
    • Method and apparatus for error correction
    • 纠错方法和装置
    • US4541093A
    • 1985-09-10
    • US488373
    • 1983-04-25
    • Tsuneo FuruyaKatsuya Hori
    • Tsuneo FuruyaKatsuya Hori
    • G11B20/18G11B27/30G11B27/34H03M13/15H03M13/29G06F11/10
    • H03M13/2924G11B20/1809G11B27/3063G11B27/34G11B2020/10592G11B2220/2545H03M13/15
    • A method of error correction comprises error correction coding processing and interleaving and de-interleaving processings for digital subcoding data (as opposed to main data) in subchannels (as opposed to the main channel) to be transmitted. Apparatus is provided comprising means for performing those processings. The method comprises the steps of dividing digital subcoding data in one PACKET into a plurality of PACKs; adding a first redundant code for error detection or error correction to each of the PACKs; and interleaving the digital subcoding data in each of the PACKs and the first redundant code; whereby the interleaved data is transmitted together with frame sync signals and main data. The data in the subchannels is coded and interleaved and then recorded so that the distances between the data are maximized. Therefore, if errors should occur, the interpolation can be properly done, thereby improving the error correcting ability without requiring complicated error correction circuit or large buffer memory such as those required for the data in the main channel.
    • 误差校正方法包括对要发送的子信道(与主信道相反)的数字子编码数据(与主数据相反)的纠错编码处理和交织和解交织处理。 提供了包括用于执行这些处理的装置的装置。 该方法包括以下步骤:将一个分组中的数字子编码数据划分成多个PACK; 向每个PACK添加用于错误检测或纠错的第一冗余码; 并且在每个PACK和第一冗余代码中交织数字子编码数据; 从而与帧同步信号和主数据一起发送交织的数据。 子信道中的数据被编码和交织,然后记录,使得数据之间的距离最大化。 因此,如果发生错误,则可以适当地进行插补,从而提高纠错能力,而不需要复杂的纠错电路或大的缓冲存储器,例如主通道中数据所需的那些。