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公开(公告)号：US08031792B2
公开(公告)日：2011-10-04
申请号：US11662301
申请日：2005-09-09
申请人： Cyril Valadon
发明人： Cyril Valadon
CPC分类号： H04L25/03292 , H04L25/03184 , H04L25/03235
摘要： A trellis processing technique for estimating a transmitted signal from a received signal acquired through a channel achieves a reduced computational structure when implementing a DDFSE-like branch metrics calculation by pre-storing computed values, which can be re-used. The technique involves storing differences between a received symbol and different products, each of which is a product of a channel coefficient corresponding to a least time delay and a different possible transmitted symbol. A summation of products is calculated, each product being a product of a possible transmitted signal symbol and a channel coefficient other than the channel coefficient corresponding to the least time delay, the summation being specific to a branch-start state in a trellis. The summation is combined with different stored differences in a calculation of branch metrics leading to different branch-end states in the trellis.
摘要翻译： 用于通过信道获取的接收信号估计发射信号的网格处理技术通过预先存储可重新使用的计算值来实现类似DDFSE的分支量度计算，实现了减少的计算结构。 该技术涉及存储接收符号和不同产品之间的差异，每个产品是与最小时间延迟对应的信道系数与不同可能发送符号的乘积。 计算产品的总和，每个产品是可能的传输信号符号的乘积和不同于最小时间延迟的信道系数的通道系数，该总和特定于网格中的分支开始状态。 总和与不同的存储差异结合在分支度量的计算中，导致网格中不同的分支结束状态。
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公开(公告)号：US20100014614A1
公开(公告)日：2010-01-21
申请号：US12373998
申请日：2007-07-26
申请人： Martin Leach , Cyril Valadon , Neil Colin Campbell
发明人： Martin Leach , Cyril Valadon , Neil Colin Campbell
CPC分类号： H04B1/7115 , H04L25/0208 , H04L25/0212 , H04L25/03019 , H04L25/0328
摘要： Apparatus comprising a pre-filter rake architecture with various features designed to, in at least some circumstances, to lessen the data processing burden associated with the architecture. In one embodiment, the pre-filter aspect can be disabled.
摘要翻译： 包括具有各种特征的预过滤器耙式结构的装置，其被设计为在至少一些情况下减少与该架构相关联的数据处理负担。 在一个实施例中，可以禁用预过滤器方面。
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公开(公告)号：US07644346B2
公开(公告)日：2010-01-05
申请号：US10534359
申请日：2003-11-07
申请人： Cyril Valadon
发明人： Cyril Valadon
IPC分类号： H03M13/03
CPC分类号： H04L1/0046 , H04L1/0006 , H04L1/0054 , H04L1/0061
摘要： A method of assessing an encoded signal to determine whether a candidate format was used to arrange the signal into blocks before the encoding was done, the method comprising: using the Viterbi algorithm to determine trellis metrics for a point in said signal that would be an end point of a candidate block according to the candidate format; determining from said metrics the likelihood of occupation at said point of an end state of an encoding scheme used to create the encoded signal; decoding a part of said signal ending at said point; and performing a check using said decoded part to determine whether the candidate block satisfies an error protection scheme of the candidate format.
摘要翻译： 一种评估编码信号以确定候选格式是否用于在编码完成之前将信号布置成块的方法，所述方法包括：使用维特比算法来确定所述信号中将成为结束的点的网格度量 根据候选格式的候选块的点; 从所述度量确定用于创建编码信号的编码方案的结束状态的所述点处的占用的可能性; 解码在所述点处结束的所述信号的一部分; 以及使用所述解码部分执行检查，以确定候选块是否满足候选格式的错误保护方案。
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公开(公告)号：US20080192862A1
公开(公告)日：2008-08-14
申请号：US11661632
申请日：2005-08-15
CPC分类号： H04L25/062 , H04L25/0212
摘要： A scheme for deducing a DC offset in a received signal burst acquired through a particular channel, wherein the received signal burst corresponds to a transmitted signal burst. An impulse response estimate of the channel is used to model how a known or recovered part of the transmitted burst would have been affected by passage through said channel in place of the corresponding part of the transmitted signal burst. The modeled part of the transmitted burst is then compared with the corresponding part of the received signal burst to deduce a DC offset present in the received signal burst.
摘要翻译： 一种用于推导通过特定信道获取的接收信号突发中的DC偏移的方案，其中所接收的信号脉冲串对应于发射的信号突发。 信道的脉冲响应估计用于建模传送的脉冲串的已知或恢复的部分将如何通过所述信道而不是所传输的信号脉冲串的相应部分而受到影响。 然后将所发送脉冲串的建模部分与接收信号脉冲串的对应部分进行比较，以推断存在于接收信号脉冲串中的DC偏移。
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公开(公告)号：US20080137779A1
公开(公告)日：2008-06-12
申请号：US11662301
申请日：2005-09-09
申请人： Cyril Valadon
发明人： Cyril Valadon
IPC分类号： H04L25/00
CPC分类号： H04L25/03292 , H04L25/03184 , H04L25/03235
摘要： The trellis processing apparatus and method achieve a reduced computational structure when implementing a DDFSE-like branch metrics calculation by pre-storing computed values, which can be re-used.
摘要翻译： 当通过预先存储可重新使用的计算值来实现类似DDFSE的分支度量计算时，网格处理装置和方法实现了减少的计算结构。
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公开(公告)号：US20070265791A1
公开(公告)日：2007-11-15
申请号：US11782242
申请日：2007-07-24
申请人： CYRIL VALADON
发明人： CYRIL VALADON
IPC分类号： G06F19/00
CPC分类号： H04Q1/46
摘要： Apparatus arranged to analyse a signal comprising a series of symbols, the apparatus comprising means for calculating a metric of said signal, filter means for filtering said signal, means for calculating a metric of said filtered signal and means for comparing said metrics, wherein the filtering means is arranged to track a spectral feature of the signal and maintain that feature within the pass band of the filtering means.
摘要翻译： 用于分析包括一系列符号的信号的装置，所述装置包括用于计算所述信号的度量的装置，用于对所述信号进行滤波的滤波装置，用于计算所述滤波信号的度量的装置和用于比较所述度量的装置，其中滤波 装置被设置为跟踪信号的频谱特征并将该特征保持在滤波装置的通带内。
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公开(公告)号：US20060146963A1
公开(公告)日：2006-07-06
申请号：US10534359
申请日：2003-11-07
申请人： Cyril Valadon
发明人： Cyril Valadon
IPC分类号： H04L27/06
CPC分类号： H04L1/0046 , H04L1/0006 , H04L1/0054 , H04L1/0061
摘要： A method of assessing an encoded signal to determine whether a candidate format was used to arrange the signal into blocks before the encoding was done, the method comprising: using the Viterbi algorithm to determine trellis metrics for a point in said signal that would be an end point of a candidate block according to the candidate format; determining from said metrics the likelihood of occupation at said point of an end state of an encoding scheme used to create the encoded signal; decoding a part of said signal ending at said point; and performing a check using said decoded part to determine whether the candidate block satisfies an error protection scheme of the candidate format.
摘要翻译： 一种评估编码信号以确定候选格式是否用于在编码完成之前将信号布置成块的方法，所述方法包括：使用维特比算法来确定所述信号中将成为结束的点的网格度量 根据候选格式的候选块的点; 从所述度量确定用于创建编码信号的编码方案的结束状态的所述点处的占用的可能性; 解码在所述点处结束的所述信号的一部分; 以及使用所述解码部分执行检查，以确定候选块是否满足候选格式的错误保护方案。
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