Encoding device, decoding device, encoding/decoding device, and recording/reproducing device
    91.
    发明授权
    Encoding device, decoding device, encoding/decoding device, and recording/reproducing device 失效
    编码装置,解码装置,编码/解码装置和记录/再现装置

    公开(公告)号:US08151162B2

    公开(公告)日:2012-04-03

    申请号:US12276958

    申请日:2008-11-24

    IPC分类号: H03M13/00

    摘要: An error correction device error corrects without increasing in circuit scale. An encoder, includes: a first ECC encoder which interleaves a data string into n (n≧2) blocks of data strings at every m (m≧2) bits, and adds the error correction code parity; a parity encoder which creates a parity bit at every plurality of bits of the error correction code word, and adds the parity bit to said error correction code word; and a second ECC encoder, which generates a second error correction encoding, which is a linear encoding using iterative decoding. Concatenated type encoded data, where a parity bit is added to every plurality of bits, is created, so an increase of circuit scale can be prevented even if a data string is interleaved into a plurality of blocks and error correction code parity is generated.

    摘要翻译: 错误纠正装置的错误在电路规模上没有增加。 一种编码器,包括:第一ECC编码器,每m(m≥2)位将数据串交织成n(n≥2)个数据串块,并加上纠错码奇偶校验; 奇偶校验编码器,其在所述纠错码字的每多个位产生奇偶校验位,并将所述奇偶校验位加到所述纠错码字; 以及第二ECC编码器,其生成使用迭代解码的线性编码的第二纠错编码。 创建了对每个多个比特添加奇偶校验位的级联型编码数据,因此即使将数据串交错为多个块并产生纠错码奇偶校验,也可以防止电路规模的增加。

    Method and apparatus for error compensation
    92.
    发明授权
    Method and apparatus for error compensation 有权
    误差补偿方法和装置

    公开(公告)号:US08122332B2

    公开(公告)日:2012-02-21

    申请号:US12621879

    申请日:2009-11-19

    IPC分类号: H03M13/03 H03D1/00

    摘要: Various approaches to recover data are described. An one example, an encoded data stream is processed in a first channel decoder producing a channel decoder output. The channel decoder output and the encoded data stream are processed in an error compensation unit to compensate the channel decoder output for low frequency noise and produce an error compensated data stream. The error compensated data stream is processed in a second channel decoder to produce a recovered data stream, wherein the recovered data stream has a reduction in the number of errors as compared to the encoded data stream. Systems to iteratively recover data from an encoded data stream are also described.

    摘要翻译: 描述了恢复数据的各种方法。 一个示例,编码数据流在产生信道解码器输出的第一信道解码器中被处理。 信道解码器输出和编码数据流在误差补偿单元中被处理以补偿信道解码器输出的低频噪声并产生误差补偿数据流。 误差补偿数据流在第二信道解码器中被处理以产生恢复的数据流,其中恢复的数据流与编码的数据流相比具有减少的错误数量。 还描述了从编码数据流迭代地恢复数据的系统。

    RFID RECEIVER
    94.
    发明申请
    RFID RECEIVER 有权
    RFID接收器

    公开(公告)号:US20100310019A1

    公开(公告)日:2010-12-09

    申请号:US12603027

    申请日:2009-10-21

    申请人: Ramin Sadr

    发明人: Ramin Sadr

    IPC分类号: H04L27/00

    摘要: RFID data signals from RFID tags may be recovered by determining the probabilities of transitions between data states between a series of a pairs of signal samples using a set of predetermined probabilities related to data, timing, baud rate and/or phase variables affecting the received signal and processing those determined probabilities to determine the sequence of such transitions that has the highest probability of occurrence. A second set of predetermined probabilities related to transitions in the opposite direction may be used to sequence in a reverse direction. The determination of the sequence representing the RFID tag data may be iterated in both directions until further iterations do not change the determined probabilities.

    摘要翻译: 可以通过使用与影响接收信号的数据,定时,波特率和/或相位变量相关的一组预定概率来确定一系列信号样本之间的数据状态之间的转换概率来恢复来自RFID标签的RFID数据信号 并且处理这些确定的概率以确定具有最高发生概率的这种转换的序列。 可以使用与相反方向上的转变相关的第二组预定概率来反向排列。 代表RFID标签数据的序列的确定可以在两个方向上迭代,直到进一步的迭代不改变所确定的概率。

    Communication channel with Reed-Solomon encoding and single parity check
    95.
    发明授权
    Communication channel with Reed-Solomon encoding and single parity check 有权
    具有Reed-Solomon编码和单奇偶校验的通信信道

    公开(公告)号:US07814398B2

    公开(公告)日:2010-10-12

    申请号:US11450317

    申请日:2006-06-09

    IPC分类号: H03M13/00

    摘要: A communication channel including Reed-Solomon (RS) and single-parity-check (SPC) encoding/decoding. Multiple RS codewords are combined and then SPC encoded into an RS/SPC array. A soft-input soft-output (SISO) channel detector detects the RS/SPC encoded bits and provides soft (reliability) information on these bits. A combined RS and SPC error correction block provides a recovered user output. An iterative soft input decoding algorithm combines RS and SPC error correction.

    摘要翻译: 包括Reed-Solomon(RS)和单奇偶校验(SPC)编码/解码的通信信道。 组合多个RS码字,然后将SPC编码为RS / SPC阵列。 软输入软输出(SISO)通道检测器检测RS / SPC编码位,并在这些位上提供软(可靠性)信息。 组合的RS和SPC误差校正块提供恢复的用户输出。 迭代软输入解码算法结合了RS和SPC误差校正。

    Systems and methods for error reduction associated with information transfer
    97.
    发明授权
    Systems and methods for error reduction associated with information transfer 有权
    与信息传输相关的错误减少的系统和方法

    公开(公告)号:US07712008B2

    公开(公告)日:2010-05-04

    申请号:US11341963

    申请日:2006-01-26

    IPC分类号: H03M13/00

    摘要: Various systems and methods for error reduction in a digital information system are disclosed herein. As one example, a digital storage system is provided that includes a soft output Viterbi algorithm channel detector operable to receive an encoded data set, and to provide a hard and a soft output representing the encoded data set. The hard and the soft output from the soft output Viterbi algorithm channel detector are provided to a single parity row decoder that provides another hard output that is an error reduced representation of the encoded data set. The encoded data set is additionally provided from the buffer to another channel detector via a delay element. The hard output from the single parity row decoder and the time shifted encoded data set are provided to coincident with each other to another channel detector.

    摘要翻译: 本文公开了用于数字信息系统中的差错减少的各种系统和方法。 作为一个示例,提供了数字存储系统,其包括软输出维特比算法信道检测器,其可操作以接收编码数据集,并提供表示编码数据集的硬和软输出。 来自软输出维特比算法信道检测器的硬和软输出被提供给单个奇偶校验行解码器,其提供作为编码数据集的错误减少表示的另一硬输出。 编码数据集通过延迟元件从缓冲器附加地提供给另一个通道检测器。 提供来自单个奇偶校验行解码器和时移编码数据组的硬输出以彼此重合到另一个通道检测器。

    ARCHITECTURE AND CONTROL OF REED-SOLOMON ERROR IDENTIFICATION AND EVALUATION
    99.
    发明申请
    ARCHITECTURE AND CONTROL OF REED-SOLOMON ERROR IDENTIFICATION AND EVALUATION 有权
    REED-SOLOMON错误识别和评估的架构与控制

    公开(公告)号:US20090292976A1

    公开(公告)日:2009-11-26

    申请号:US12512710

    申请日:2009-07-30

    IPC分类号: H03M13/15 G06F11/10

    摘要: Systems and methods are provided for implementing error identification and evaluation for a Reed-Solomon (RS) error-correction code (ECC) system. The BMA algorithm and/or list decoding may produce one or more error locator polynomials that are related to a decision-codeword. An accelerated Chien search can be used to more quickly evaluate the one or more error locator polynomial. If the accelerated Chien search identifies a valid error locator polynomial, a normal Chien search can be used to identify error locations, and Forney's algorithm or an equivalent technique can be used to evaluate the error values. A RS ECC decoder can include a computation circuit that evaluates an error locator polynomial or an error evaluator polynomial. The computation circuit can include computation components that receive the coefficients of the polynomials.

    摘要翻译: 提供了系统和方法,用于实现里德 - 所罗门(RS)纠错码(ECC)系统的错误识别和评估。 BMA算法和/或列表解码可以产生与决策码字相关的一个或多个错误定位器多项式。 加速Chien搜索可用于更快速地评估一个或多个错误定位器多项式。 如果加速Chien搜索识别有效的错误定位器多项式,则可以使用正常的Chien搜索来识别错误位置,并且可以使用Forney的算法或等效技术来评估误差值。 RS ECC解码器可以包括评估错误定位器多项式或误差评估器多项式的计算电路。 计算电路可以包括接收多项式的系数的计算组件。

    Architecture and control of Reed-Solomon list decoding
    100.
    发明授权
    Architecture and control of Reed-Solomon list decoding 有权
    Reed-Solomon列表解码的架构与控制

    公开(公告)号:US07590924B2

    公开(公告)日:2009-09-15

    申请号:US12256652

    申请日:2008-10-23

    IPC分类号: H03M13/00

    摘要: Systems and methods are provided for implementing list decoding in a Reed-Solomon (RS) error-correction system. A detector can provide a decision-codeword from a channel and can also provide soft-information for the decision-codeword. The soft-information can be organized into an order of combinations of error events for list decoding. An RS decoder can employ a list decoder that uses a pipelined list decoder architecture. The list decoder can include one or more syndrome modification circuits that can compute syndromes in parallel. A long division circuit can include multiple units that operate to compute multiple quotient polynomial coefficients in parallel. The list decoder can employ iterative decoding and a validity test to generate error indicators. The iterative decoding and validity test can use the lower syndromes.

    摘要翻译: 提供了用于在里德 - 所罗门(RS)纠错系统中实现列表解码的系统和方法。 检测器可以从信道提供判决码字,并且还可以为判决码字提供软信息。 软信息可以被组织成用于列表解码的错误事件的组合的顺序。 RS解码器可以使用使用流水线列表解码器架构的列表解码器。 列表解码器可以包括可以并行计算综合征的一个或多个综合征修改电路。 长分割电路可以包括并行地计算多个商多项式系数的多个单元。 列表解码器可以采用迭代解码和有效性测试来产生错误指示符。 迭代解码和有效性测试可以使用较低的综合征。