公开(公告)号：US20090161788A1

公开(公告)日：2009-06-25

申请号：US12083490

申请日：2006-10-13

申请人： Xavier Giraud ,  Alban Duverdier

发明人： Xavier Giraud ,  Alban Duverdier

IPC分类号： H04L27/00 ,  H04L27/06

CPC分类号： H04J3/0608 ,  H04N7/20 ,  H04N21/2383 ,  H04N21/242 ,  H04N21/4302 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6143 ,  H04N21/64315

摘要： A receiving method for a digital stream, the stream including frames having each a body composed of a variable number c of symbols and preceded by a header including d symbols, a field composed of a fixed number e of symbols unknown to the receiver and defining the number c. A locking phase of the receiving method includes receiving a series of e symbols of the stream; performing a correlation computation for pairs of symbols received, the correlation computation being used to verify a predefined relationship if the e symbols form the unknown field; determining a correlation level and determining whether the e symbols form the unknown field on the basis of the correlation level; repeating the steps until it is determined that the e symbols form the unknown field.

摘要翻译： 一种用于数字流的接收方法，所述流包括具有由可变数量的符号组成的身体的帧的前面包括d个符号的头部的帧，由接收机未知的固定数目的e个符号组成的字段， 数字c。 接收方法的锁定阶段包括接收流的一系列e个符号; 对接收到的符号对执行相关计算，如果e符号形成未知字段，则用于验证预定关系的相关计算; 确定相关电平并基于相关电平来确定e符号是否形成未知字段; 重复步骤直到确定e符号形成未知字段。

公开(公告)号：US08180010B2

公开(公告)日：2012-05-15

申请号：US12083490

申请日：2006-10-13

申请人： Xavier Giraud ,  Alban Duverdier

发明人： Xavier Giraud ,  Alban Duverdier

IPC分类号： H04L7/00

CPC分类号： H04J3/0608 ,  H04N7/20 ,  H04N21/2383 ,  H04N21/242 ,  H04N21/4302 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6143 ,  H04N21/64315

摘要： A receiving method for a digital stream, the stream including frames having each a body composed of a variable number c of symbols and preceded by a header including d symbols, a field composed of a fixed number e of symbols unknown to the receiver and defining the number c. A locking phase of the receiving method includes receiving a series of e symbols of the stream; performing a correlation computation for pairs of symbols received, the correlation computation being used to verify a predefined relationship if the e symbols form the unknown field; determining a correlation level and determining whether the e symbols form the unknown field on the basis of the correlation level; repeating the steps until it is determined that the e symbols form the unknown field.

摘要翻译： 一种用于数字流的接收方法，所述流包括具有由可变数量的符号组成的身体的帧的前面包括d个符号的头部的帧，由接收机未知的固定数目的e个符号组成的字段， 数字c。 接收方法的锁定阶段包括接收流的一系列e个符号; 对接收到的符号对执行相关计算，如果e符号形成未知字段，则用于验证预定关系的相关计算; 确定相关电平并基于相关电平来确定e符号是否形成未知字段; 重复步骤直到确定e符号形成未知字段。

公开(公告)号：US08001169B2

公开(公告)日：2011-08-16

申请号：US11658413

申请日：2005-07-20

申请人： Alban Duverdier ,  Wilfried Chauvet

发明人： Alban Duverdier ,  Wilfried Chauvet

IPC分类号： G06F17/10

CPC分类号： H04B1/69

摘要： A spread spectrum method for a digital input signal (x(n)), comprising the following steps: coefficients of a reversible digital periodical linear filter are selected in such a way that the spectrum of the input signal (x(n)) is spread in order to occupy a spread frequency band (B) with the exception of at least one eliminated frequency sub-band (B′), included in a spread frequency band, and the input signal is processed via the digital periodical linear filter in such a way as to obtain a spread spectrum output signal (y(n)).

摘要翻译： 一种用于数字输入信号（x（n））的扩频方法，包括以下步骤：选择可逆数字周期线性滤波器的系数，使输入信号（x（n））的频谱扩展 为了占据包含在扩展频带中的至少一个去除频率子带（B'）以外的扩展频带（B），并且经由数字周期性线性滤波器处理该输入信号 以获得扩频输出信号（y（n））。

公开(公告)号：US20080304548A1

公开(公告)日：2008-12-11

申请号：US11658413

申请日：2005-07-20

申请人： Alban Duverdier ,  Wilfried Chauvet

发明人： Alban Duverdier ,  Wilfried Chauvet

IPC分类号： H04B1/00 ,  H04B1/707

CPC分类号： H04B1/69

摘要： The invention relates to a spread spectrum method for a digital input signal (x(n)), said method comprising the following steps: coefficients of a reversible digital periodical linear filter (1) are selected in such a way that the spectrum of the input signal (x(n)) is spread in order to occupy a spread frequency band (B) with the exception of at least one eliminated frequency sub-band (B′), included in the spread frequency band, and the input signal is processed by means of the digital periodical linear filter in such a way as to obtain a spread spectrum output signal (y(n)).

摘要翻译： 本发明涉及一种用于数字输入信号（x（n））的扩频方法，所述方法包括以下步骤：选择可逆数字周期线性滤波器（1）的系数，使得输入的频谱 信号（x（n））被扩展以便占据扩展频带（B），除了包括在扩展频带中的至少一个消除的频率子带（B'），并且处理输入信号 通过数字周期性线性滤波器以获得扩频输出信号（y（n））的方式。