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    • 22. 发明授权
    • Iterative decoding of packet data
    • 分组数据的迭代解码
    • US07530007B2
    • 2009-05-05
    • US11282413
    • 2005-11-18
    • Azzedine TouzniRavikiran Rajagopal
    • Azzedine TouzniRavikiran Rajagopal
    • H03M13/00
    • H04L1/0051H03M13/09H03M13/1102H03M13/1515H03M13/29H03M13/2915H03M13/2918H03M13/293H03M13/2948H03M13/2957H03M13/6356H03M13/6362H03M13/6541H04L1/0061H04L1/0064H04L1/0065H04L1/0068
    • A receiver employs iterative decoding of packet data, where the packet data represents a data frame encoded with at least two logical dimensions. A logical dimension refers to a layer, or sub-layer, of a layered network architecture. Consequently, a first logical dimension of encoding might refer to error detection in a packet frame at the data link layer, while a second logical dimension of coding might refer to error detection/correction encoding at a physical layer. For example, a data frame might be divided into several packets, each with a corresponding cyclic redundancy check (CRC) value as coding in the first logical dimension, which are then transmitted with a convolutional code as coding in the second logical dimension. The receiver performs iterative decoding in the first and second logical dimensions until either i) all errors are identified and corrected or ii) another type of stopping condition is met.
    • 接收机使用分组数据的迭代解码,其中分组数据表示以至少两个逻辑维度编码的数据帧。 逻辑维度是指分层网络架构的层或子层。 因此,编码的第一逻辑维度可以指在数据链路层的分组帧中的错误检测,而编码的第二逻辑维度可以指在物理层处的错误检测/校正编码。 例如,数据帧可以被划分成几个分组,每个分组具有作为第一逻辑维度中的编码的对应的循环冗余校验(CRC)值,然后以卷积码作为第二逻辑维度的编码被传送。 接收机在第一和第二逻辑维度中执行迭代解码,直到i)识别和校正所有错误或者ii)满足另一种类型的停止条件。
    • 23. 发明申请
    • Systems and Methods for Code Based Error Reduction
    • 基于代码的错误减少的系统和方法
    • US20080055122A1
    • 2008-03-06
    • US11461283
    • 2006-07-31
    • Weijun Tan
    • Weijun Tan
    • H03M5/00
    • H03M13/2921G11B20/1833H03M13/1102H03M13/2918H03M13/2957H03M13/6331
    • Various systems and methods for code based error reduction are disclosed herein. For example, a digital information system including a channel detector and a decoder is disclosed. In the system, the channel detector receives an encoded data set and is operable to perform a column parity check. The channel detector provides an output representing the encoded data set. The decoder receives the output from the channel detector and is operable to perform two checks. The two checks may be one of: two pseudo-random parity checks, a pseudo-random parity check and a slope parity check, and two slope parity checks. In addition, the decoder provides another output representing the encoded data set.
    • 本文公开了用于基于代码的错误减少的各种系统和方法。 例如,公开了包括信道检测器和解码器的数字信息系统。 在系统中,信道检测器接收编码数据集,并可操作以执行列奇偶校验。 信道检测器提供表示编码数据集的输出。 解码器接收来自信道检测器的输出,并可操作以执行两次检查。 两个检查可以是以下之一:两个伪随机奇偶校验,伪随机奇偶校验和斜率奇偶校验,以及两个斜率奇偶校验。 此外,解码器提供表示编码数据集的另一输出。