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1. 发明申请

US20100290506A1 SPREADING CODE ACQUISITION FOR DIRECT SEQUENCE SPREAD SPECTRUM SIGNALS 失效
标题翻译：直接序列传播光谱信号的传播代码获取
公开(公告)号：US20100290506A1
公开(公告)日：2010-11-18
申请号：US12779575
申请日：2010-05-13
申请人： Ron Kerr , Paul Guinand , John Lodge
发明人： Ron Kerr , Paul Guinand , John Lodge
IPC分类号： H04B1/707
CPC分类号： H04B1/7075 , H04J13/0074
摘要： The invention relates to a method and apparatus for acquiring a complex spreading code of a direct sequence spread spectrum signal (DSSS) by acquiring a state of a spreading code generator capable of generating the complex spreading code. A sequence of bipolar differential product values, which sign is independent on data transmitted by the DSSS signal, is obtained by combining in-phase and quadrature samples of the DSSS signal for adjacent chip intervals. This sequence is provided to a linear block decoder for obtaining a codeword of a linear block code, which is defined by a structure of the spreading generator and the differential product operation. The codeword is used to compute the state of the spreading code generator.
摘要翻译：本发明涉及通过获取能够生成复扩展码的扩展码发生器的状态来获取直接序列扩频信号（DSSS）的复扩展码的方法和装置。通过组合相邻码片间隔的DSSS信号的同相和正交样本，获得符号与DSSS信号发送的数据无关的双极差分积值序列。该序列被提供给线性块解码器，用于获得由扩展发生器的结构和差分乘积运算定义的线性块码的码字。码字用于计算扩展码发生器的状态。

2. 发明授权

US07203893B2 Soft input decoding for linear codes 有权
标题翻译：用于线性码的软输入解码
公开(公告)号：US07203893B2
公开(公告)日：2007-04-10
申请号：US10834115
申请日：2004-04-29
申请人： Ron Kerr , John Lodge , Paul Guinand
发明人： Ron Kerr , John Lodge , Paul Guinand
IPC分类号： H03M13/45
CPC分类号： H03M13/45 , H03M13/05 , H03M13/1191 , H03M13/13 , H03M13/134 , H03M13/19 , H03M13/3776 , H03M13/3784 , H03M13/3944 , H03M13/458 , H03M13/616 , H04L1/005
摘要： A method of decoding soft input information related to a transmitted word of a linear block code (n, k) and providing hard or soft output information is disclosed. The method comprises the steps of forming a reliability vector from the input information, identifying (n−k) linearly independent least reliable symbols and k most reliable symbols, converting a parity check matrix of the linear block code to a pseudo-systematic form with respect to the least reliable symbols, calculating extrinsic information and composite information for the most reliable symbols using the soft input information and the pseudo-systematic parity check matrix, and calculating extrinsic information for the least reliable systems using composite information for the most reliable symbols.
摘要翻译：公开了一种解码与线性块码（n，k）的发送字相关的软输入信息并提供硬或软输出信息的方法。该方法包括以下步骤：从输入信息形成可靠性向量，识别（nk）线性独立的最不可靠符号和k个最可靠的符号，将线性块码的奇偶校验矩阵转换为伪系统形式相对于使用软输入信息和伪系统奇偶校验矩阵计算外部信息和最可靠符号的复合信息，以及使用用于最可靠符号的复合信息来计算最不可靠系统的外在信息。

3. 发明授权

US08300675B2 Spreading code acquisition for direct sequence spread spectrum signals 失效
标题翻译：直接序列扩频信号的扩展码采集
公开(公告)号：US08300675B2
公开(公告)日：2012-10-30
申请号：US12779575
申请日：2010-05-13
申请人： Ron Kerr , Paul Guinand , John Lodge
发明人： Ron Kerr , Paul Guinand , John Lodge
IPC分类号： H04B1/00
CPC分类号： H04B1/7075 , H04J13/0074
摘要： The invention relates to a method and apparatus for acquiring a complex spreading code of a direct sequence spread spectrum signal (DSSS) by acquiring a state of a spreading code generator capable of generating the complex spreading code. A sequence of bipolar differential product values, which sign is independent on data transmitted by the DSSS signal, is obtained by combining in-phase and quadrature samples of the DSSS signal for adjacent chip intervals. This sequence is provided to a linear block decoder for obtaining a codeword of a linear block code, which is defined by a structure of the spreading generator and the differential product operation. The codeword is used to compute the state of the spreading code generator.
摘要翻译：本发明涉及通过获取能够生成复扩展码的扩展码发生器的状态来获取直接序列扩频信号（DSSS）的复扩展码的方法和装置。通过组合相邻码片间隔的DSSS信号的同相和正交样本，获得符号与DSSS信号发送的数据无关的双极差分积值序列。该序列被提供给线性块解码器，用于获得由扩展发生器的结构和差分乘积运算定义的线性块码的码字。码字用于计算扩展码发生器的状态。

4. 发明授权

US07827472B2 Puncture-constrained interleaving for concatenated codes 有权
标题翻译：用于级联代码的穿孔约束交织
公开(公告)号：US07827472B2
公开(公告)日：2010-11-02
申请号：US11753924
申请日：2007-05-25
申请人： Stewart N. Crozier , Kenneth Gracie , Ron Kerr
发明人： Stewart N. Crozier , Kenneth Gracie , Ron Kerr
IPC分类号： H03M13/03 , G06F11/00
CPC分类号： H03M13/2792 , H03M13/2771 , H03M13/2957 , H03M13/6362
摘要： The invention relates to an encoding system and method for generating concatenated codes which utilize interleaving and data puncturing. The method includes selecting first and second puncture location sets defining desired puncture locations in non-interleaved and interleaved data sequences, respectively. A puncture-constrained interleaver is provided, which permutes the first puncture location set into the second puncture location set, so as to provide desired regular puncture patterns for all constituent codes. In a preferred embodiment, the puncture-constrained interleaving alters a symbol location relative to a puncture mask so as to satisfy a pre-defined spread or distance constraint.
摘要翻译：本发明涉及一种用于产生利用交织和数据穿孔的级联代码的编码系统和方法。该方法包括分别在非交错和交织的数据序列中选择定义所需穿孔位置的第一和第二穿孔位置集合。提供穿刺约束交织器，其将设置的第一穿刺位置置换成第二穿孔位置集合，以便为所有构成码提供期望的定期穿刺模式。在优选实施例中，穿刺限制交织相对于穿孔掩码改变符号位置，以便满足预定义的扩展或距离约束。

5. 发明申请

US20070288834A1 Puncture-Constrained Interleaving For Concatenated Codes 有权
标题翻译：针对连续代码的穿孔约束交错
公开(公告)号：US20070288834A1
公开(公告)日：2007-12-13
申请号：US11753924
申请日：2007-05-25
申请人： Stewart N. Crozier , Kenneth Gracie , Ron Kerr
发明人： Stewart N. Crozier , Kenneth Gracie , Ron Kerr
IPC分类号： H03M13/03
CPC分类号： H03M13/2792 , H03M13/2771 , H03M13/2957 , H03M13/6362
摘要： The invention relates to an encoding system and method for generating concatenated codes which utilize interleaving and data puncturing. The method includes selecting first and second puncture location sets defining desired puncture locations in non-interleaved and interleaved data sequences, respectively. A puncture-constrained interleaver is provided, which permutes the first puncture location set into the second puncture location set, so as to provide desired regular puncture patterns for all constituent codes. In a preferred embodiment, the puncture-constrained interleaving alters a symbol location relative to a puncture mask so as to satisfy a pre-defined spread or distance constraint.
摘要翻译：本发明涉及一种编码系统和方法，用于产生利用交织和数据穿孔的级联码。该方法包括分别在非交错和交织的数据序列中选择定义所需穿孔位置的第一和第二穿孔位置集合。提供穿刺约束交织器，其将设置的第一穿刺位置置换成第二穿孔位置集合，以便为所有构成码提供期望的定期穿刺模式。在优选实施例中，穿刺限制交织相对于穿孔掩码改变符号位置，以便满足预定义的扩展或距离约束。

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