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公开(公告)号：US20140024943A1
公开(公告)日：2014-01-23
申请号：US13984011
申请日：2012-02-03
申请人： Jean-Marie Nicolas , Laurent Kopp , Frederic Mosca , Claude Cohen-Bacrie , Christophe Fraschini
发明人： Jean-Marie Nicolas , Laurent Kopp , Frederic Mosca , Claude Cohen-Bacrie , Christophe Fraschini
CPC分类号： A61B8/5207 , A61B8/145 , A61B8/4483 , A61B8/469 , A61B8/485 , A61B8/54 , G01S15/8959 , G01S15/8977 , G01S15/8997
摘要： The disclosure includes a method of acquiring high-resolution ultrasound images using an array of transducers using successive transmission matrices. Implementations include operations for determining inter-transducer correlation matrices of an area of interest and an unwanted area; determining a characteristic matrix of the area of interest from the product of the inverse of the inter-transducer correlation matrix of the unwanted area and the inter-transducer correlation matrix of the area of interest; calculating eigenvectors and values of the characteristic matrix to define a transmission matrix; adjusting the image acquisition rate and image quality in order to define eigenvectors for firing; multiplying a reception matrix comprising the acquired signals completed by data set to zero corresponding to the firings not effected by the inverse of the transmission matrix to obtain a complete data set; reconstructing a high-resolution image of the area of interest as in synthetic aperture echographic imaging methods.
摘要翻译： 本公开包括使用连续传输矩阵使用换能器阵列获取高分辨率超声图像的方法。 实现包括用于确定感兴趣区域和不需要区域的换能器间相关矩阵的操作; 从所述不需要区域的换能器间相关矩阵的逆的乘积和所述感兴趣区域的换能器间相关矩阵的乘积确定所述感兴趣区域的特征矩阵; 计算特征矩阵的特征向量和值以定义传输矩阵; 调整图像采集率和图像质量，以定义特征向量进行点火; 将包含由数据集合完成的所获取的信号的接收矩阵与对应于不受发送矩阵的逆的影响的发出相乘以获得完整的数据集; 如合成孔径回波成像方法重建感兴趣区域的高分辨率图像。
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公开(公告)号：US09504449B2
公开(公告)日：2016-11-29
申请号：US13984011
申请日：2012-02-03
申请人： Jean-Marie Nicolas , Laurent Kopp , Frédéric Mosca , Claude Cohen-Bacrie , Christophe Fraschini
发明人： Jean-Marie Nicolas , Laurent Kopp , Frédéric Mosca , Claude Cohen-Bacrie , Christophe Fraschini
CPC分类号： A61B8/5207 , A61B8/145 , A61B8/4483 , A61B8/469 , A61B8/485 , A61B8/54 , G01S15/8959 , G01S15/8977 , G01S15/8997
摘要： The disclosure includes a method of acquiring high-resolution ultrasound images using an array of transducers using successive transmission matrices. Implementations include operations for determining inter-transducer correlation matrices of an area of interest and an unwanted area; determining a characteristic matrix of the area of interest from the product of the inverse of the inter-transducer correlation matrix of the unwanted area and the inter-transducer correlation matrix of the area of interest; calculating eigenvectors and values of the characteristic matrix to define a transmission matrix; adjusting the image acquisition rate and image quality in order to define eigenvectors for firing; multiplying a reception matrix comprising the acquired signals completed by data set to zero corresponding to the firings not effected by the inverse of the transmission matrix to obtain a complete data set; reconstructing a high-resolution image of the area of interest as in synthetic aperture echographic imaging methods.
摘要翻译： 本公开包括使用连续传输矩阵使用换能器阵列来获取高分辨率超声图像的方法。 实现包括用于确定感兴趣区域和不需要区域的换能器间相关矩阵的操作; 从所述不需要区域的换能器间相关矩阵的逆的乘积和所述感兴趣区域的换能器间相关矩阵的乘积确定所述感兴趣区域的特征矩阵; 计算特征矩阵的特征向量和值以定义传输矩阵; 调整图像采集率和图像质量，以定义特征向量进行点火; 将包含由数据集合完成的所获取的信号的接收矩阵与对应于不受发送矩阵的逆的影响的发出相乘以获得完整的数据集; 如合成孔径回波成像方法重建感兴趣区域的高分辨率图像。
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公开(公告)号：US07961776B2
公开(公告)日：2011-06-14
申请号：US11605828
申请日：2006-11-28
IPC分类号： H04B1/00
CPC分类号： H04B1/707
摘要： A device for decoding a direct sequence spread spectrum-encoded binary message includes a sampler that captures at least one sequence of binary samples corresponding to one bit of the transmitted message. The captured sequence of samples are applied to a filter matched to the spreading code used, thus making it possible to delete the spreading applied to the original message. The device further includes, at the output of the sampler, an error correction block including a memory storing a plurality of binary sequences corresponding to all of the possible values for a captured sequence of samples. A replacement circuit replaces the captured sequence of samples with the stored sequence, thereby minimizing the number of samples different from the captured sequence of samples, and allowing the stored sequence to be applied to the matched filter.
摘要翻译： 用于解码直接序列扩频编码二进制消息的装置包括采样器，其捕获对应于所发送消息的一个比特的至少一个二进制样本序列。 捕获的采样序列被应用于与所使用的扩展码匹配的滤波器，从而可以删除应用于原始消息的扩展。 该装置还在采样器的输出处包括纠错块，该纠错块包括存储与捕获的采样序列的所有可能值相对应的多个二进制序列的存储器。 替换电路用所存储的序列代替捕获的样本序列，从而最小化与捕获的样本序列不同的采样数，并将存储的序列应用于匹配滤波器。
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4.发明授权Receiver device suited to a transmission system using a direct sequence spread spectrum 有权适用于使用直接序列扩频的传输系统的接收机设备公开(公告)号：US07660341B2
公开(公告)日：2010-02-09
申请号：US11429392
申请日：2006-05-04
IPC分类号： H04B1/00
CPC分类号： H04B1/30 , H04B1/7093
摘要： A receiver device for a modulated signal, suited in particular to a transmission system using a binary carrier phase modulation by means of a binary message on which a direct sequence spread spectrum operation has been carried out, this device comprising a first analog radio frequency part, transforming the signal received into a low-frequency, demodulated signal, said demodulated signal being applied to a second digital part of said device comprising an analog-to-digital converter and a filter matched to the spreading code used in order to delete the spreading applied to the original message, said device being characterized in that it includes an additional filtering unit, arranged between the analog-to-digital converter and the matched filter, said filtering unit implementing a stochastic matched filtering operation in order to improve the signal-to-noise ratio at the input of said matched filter.
摘要翻译： 一种用于调制信号的接收机设备，该设备特别适用于通过二进制消息进行二进制载波相位调制的传输系统，其上已经执行了直接序列扩频操作，该设备包括第一模拟射频部分， 将所接收的信号变换成低频解调信号，所述解调信号被施加到所述装置的第二数字部分，包括模数转换器和与所用扩展码匹配的滤波器，以便删除施加的扩展 所述装置的特征在于，其包括布置在模数转换器和匹配滤波器之间的附加滤波单元，所述滤波单元实现随机匹配滤波操作，以便改善信号 - 所述匹配滤波器的输入端的噪声比。
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5.发明授权Reception device with data recovery mechanism, adapted to transmission system using a direct spread spectrum sequence 有权具有数据恢复机制的接收装置，适用于使用直接扩频序列的传输系统公开(公告)号：US07567633B2
公开(公告)日：2009-07-28
申请号：US11414617
申请日：2006-04-28
CPC分类号： H04B1/7075 , H04L7/0079
摘要： A BPSK type reception device that includes a decoder for decoding a digital input signal, first and second comparators for delivering a decoded data signal and a data capture clock signal also includes a clock generator for generating a replacement clock signal, first and second latches controlled by the replacement clock signal to store the data taken, respectively, from the decoded data signal and from a signal that represents the sign of the signal at the output of the decoder, and a selection circuit for capturing, at each pulse edge of a clock signal that is offset with respect to the replacement clock signal, either the stored data originating in the sign signal in the case of loss of the previous data capture clock pulse edge at the output of the clock comparator, or the stored data originating in the data signal.
摘要翻译： 一种BPSK型接收装置，包括用于解码数字输入信号的解码器，用于传送解码数据信号的第一和第二比较器和数据捕获时钟信号，还包括用于产生替换时钟信号的时钟发生器，第一和第二锁存器由第 替换时钟信号分别存储从解码数据信号和表示解码器输出处的信号符号的信号所取得的数据，以及选择电路，用于在时钟信号的每个脉冲边沿捕获 相对于替换时钟信号偏移，在时钟比较器的输出处丢失先前数据捕获时钟脉冲沿的情况下，存储的符号信号的数据，或源自数据信号的存储的数据 。
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公开(公告)号：US20070098056A1
公开(公告)日：2007-05-03
申请号：US11429674
申请日：2006-05-04
IPC分类号： H04B1/00
CPC分类号： H04B1/30 , H04B1/7093
摘要： A digital processing device is at the input of a radio frequency receiver chain, suited to a transmission system using a direct sequence spectrum spread, comprising analog-to-digital conversion means (ADC) performing an undersampling of a signal received, resulting in an overlapping of the wanted signal by the transmission channel noise, demodulation means connected to the output of the ADC, a low pass filter connected at the output of the demodulation means and a filter matched to the spreading code used, wherein the ADC includes a comparator capable of comparing the amplitude of the undersampled signal to a reference in order to carry out a quantizing of the 1-bit signal, said comparator bringing about the creation of a quantizing noise, and including an additional filtering unit arranged between the low pass filter and the matched filter, implementing a multi-noise, stochastic matched filtering operation.
摘要翻译： 数字处理装置在射频接收机链的输入端，适用于使用直接序列频谱扩展的传输系统，包括执行所接收信号的欠采样的模数转换装置（ADC），导致重叠 通过传输信道噪声的有用信号，连接到ADC的输出的解调装置，连接在解调装置的输出端的低通滤波器和与所使用的扩展码匹配的滤波器，其中ADC包括比较器， 将欠采样信号的幅度与参考值进行比较，以执行1比特信号的量化，所述比较器产生量化噪声，并且包括布置在低通滤波器和匹配的量化噪声之间的附加滤波单元 滤波器，实现多噪声随机匹配滤波操作。
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公开(公告)号：US20060291541A1
公开(公告)日：2006-12-28
申请号：US11414617
申请日：2006-04-28
IPC分类号： H04B1/707
CPC分类号： H04B1/7075 , H04L7/0079
摘要： A BPSK type reception device that includes a decoder for decoding a digital input signal, first and second comparators for delivering a decoded data signal and a data capture clock signal also includes a clock generator for generating a replacement clock signal, first and second latches controlled by the replacement clock signal to store the data taken, respectively, from the decoded data signal and from a signal that represents the sign of the signal at the output of the decoder, and a selection circuit for capturing, at each pulse edge of a clock signal that is offset with respect to the replacement clock signal, either the stored data originating in the sign signal in the case of loss of the previous data capture clock pulse edge at the output of the clock comparator, or the stored data originating in the data signal.
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8.发明申请Decoding device, adapted for a transmission system using direct sequence spread spectrum 有权解码装置，适用于使用直接序列扩频的传输系统公开(公告)号：US20060209929A1
公开(公告)日：2006-09-21
申请号：US11268678
申请日：2005-11-07
IPC分类号： H04B1/00
CPC分类号： H04B1/708 , H04B1/7093 , H04B2201/709709
摘要： The invention relates to a decoding device particularly adapted to decode a digital input signal (E) in a transmission system using direct sequence spread spectrum, this digital input signal (E) being composed of symbols, each symbol representing a bit satisfying a Barker code, and comprising several symbol elements. This device comprises several finite response filters (FLT1 to FLT4) each of which receives the digital input signal (E), a clock circuit (CLK_GEN) outputting clock signals (CLK1 to CLK4) to the filters with a frequency equal to the frequency at which symbol elements are produced and uniformly distributed phase shifts, and an analysis circuit (ANL) designed to identify which of the filters is best tuned to the input signal (E) and to control the clock circuit to make it generated a clock signal (CLK5) optimised for decoding and an analysis circuit.
摘要翻译： 本发明涉及一种特别适用于使用直接序列扩频解码传输系统中的数字输入信号（E）的解码装置，该数字输入信号（E）由符号组成，每个符号表示满足巴克码的位， 并且包括多个符号元素。 该装置包括几个接收数字输入信号（E）的有限响应滤波器（FLT 1至FLT 4），将时钟信号（CLK 1至CLK 4）输出到频率等于 符号元素产生的频率和均匀分布的相移;以及分析电路（ANL），其被设计为识别哪个滤波器被最佳地调谐到输入信号（E）并且控制时钟电路以使其产生时钟 针对解码优化的信号（CLK 5）和分析电路。
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公开(公告)号：US07660342B2
公开(公告)日：2010-02-09
申请号：US11429674
申请日：2006-05-04
申请人： Benoît Durand , Christophe Fraschini , Philippe Courmontagne , Anne Collard Bovy , Stephane Meillere
发明人： Benoît Durand , Christophe Fraschini , Philippe Courmontagne , Anne Collard Bovy , Stephane Meillere
IPC分类号： H04B1/00
CPC分类号： H04B1/30 , H04B1/7093
摘要： A digital processing device is at the input of a radio frequency receiver chain, suited to a transmission system using a direct sequence spectrum spread, comprising analog-to-digital conversion means (ADC) performing an undersampling of a signal received, resulting in an overlapping of the wanted signal by the transmission channel noise, demodulation means connected to the output of the ADC, a low pass filter connected at the output of the demodulation means and a filter matched to the spreading code used, wherein the ADC includes a comparator capable of comparing the amplitude of the undersampled signal to a reference in order to carry out a quantizing of the 1-bit signal, said comparator bringing about the creation of a quantizing noise, and including an additional filtering unit arranged between the low pass filter and the matched filter, implementing a multi-noise, stochastic matched filtering operation.
摘要翻译： 数字处理装置在射频接收机链的输入端，适用于使用直接序列频谱扩展的传输系统，包括执行所接收信号的欠采样的模数转换装置（ADC），导致重叠 通过传输信道噪声的有用信号，连接到ADC的输出的解调装置，连接在解调装置的输出端的低通滤波器和与所使用的扩展码匹配的滤波器，其中ADC包括比较器， 将欠采样信号的幅度与参考值进行比较，以执行1比特信号的量化，所述比较器产生量化噪声，并且包括布置在低通滤波器和匹配的量化噪声之间的附加滤波单元 滤波器，实现多噪声随机匹配滤波操作。
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公开(公告)号：US20070133664A1
公开(公告)日：2007-06-14
申请号：US11605828
申请日：2006-11-28
IPC分类号： H04B1/00
CPC分类号： H04B1/707
摘要： A device for decoding a direct sequence spread spectrum-encoded binary message includes a sampler that captures at least one sequence of binary samples corresponding to one bit of the transmitted message. The captured sequence of samples are applied to a filter matched to the spreading code used, thus making it possible to delete the spreading applied to the original message. The device further includes, at the output of the sampler, an error correction block including a memory storing a plurality of binary sequences corresponding to all of the possible values for a captured sequence of samples. A replacement circuit replaces the captured sequence of samples with the stored sequence, thereby minimizing the number of samples different from the captured sequence of samples, and allowing the stored sequence to be applied to the matched filter.
摘要翻译： 用于解码直接序列扩频编码二进制消息的装置包括采样器，其捕获对应于所发送消息的一个比特的至少一个二进制样本序列。 捕获的采样序列被应用于与所使用的扩展码匹配的滤波器，从而可以删除应用于原始消息的扩展。 该装置还在采样器的输出处包括纠错块，该纠错块包括存储与捕获的采样序列的所有可能值相对应的多个二进制序列的存储器。 替换电路用所存储的序列代替捕获的样本序列，从而最小化与捕获的样本序列不同的采样数，并将存储的序列应用于匹配滤波器。
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