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1. 发明申请

WO1997009782A1 ADAPTIVE DIGITAL FILTERING PROCESS IN THE FREQUENCY DOMAIN 审中-公开
标题翻译：频域中的自适应数字滤波过程
公开(公告)号：WO1997009782A1
公开(公告)日：1997-03-13
申请号：PCT/FR1996001378
申请日：1996-09-09
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE , BERBERIDIS, Constantinos , PALICOT, Jacques
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE
IPC分类号： H03H21/00
CPC分类号： H03H21/0027
摘要： The invention concerns an adaptive filtering process for time input signals (X(n)) in the frequency domain. Filtering is carried out on blocks (xm(k)) of m successive signals ((x(n)), ... x (n+m-1))), by multiplying the Fourier transform (X2m(k)) of the input signal blocks by blocks (W2m(k)) of weighting coefficients in the frequency domain, the coefficient blocks being calculated recursively from preceding coefficient blocks and from first and second corrective terms (C2m (k), C2m (k)) obtained from output signals (ym(k)) corresponding to the filtered input signals and from the Fourier transform of a model of the input (bp+1).
摘要翻译：本发明涉及频域中的时间输入信号（X（n））的自适应滤波处理。在m个连续信号（（x（n）），... x（n + m-1））的块（xm（k））上进行滤波，通过将傅立叶变换（X2m（k））乘以所述输入信号以频域的加权系数块（W2m（k））为单位，所述系数块是从先前系数块递归计算的，以及来自第一和第二校正项（C2m1（k），C2m2）（k +）），并从输出信号（ym（k））获得的输入信号（ym（k））和输入信号（bp + 1）的傅立叶变换。

2. 发明申请

WO1997009781A1 DECISION FEEDBACK FILTER DEVICE IN THE FREQUENCY DOMAIN 审中-公开
标题翻译：决策反馈滤波器在频域中的设备
公开(公告)号：WO1997009781A1
公开(公告)日：1997-03-13
申请号：PCT/FR1996001377
申请日：1996-09-09
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE , BERBERIDIS, Constantinos , PALICOT, Jacques
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE
IPC分类号： H03H17/02
CPC分类号： H04L25/03159 , H03H17/0213 , H04L2025/03522
摘要： The invention concerns a decision feedback filter device comprising a direct filter (FF) and a feedback filter (FB) for producing corresponding decisions (d(n)) from input symbols (x(n)), the direct filter (FF) receiving the input symbols as input, and the feedback filter (FB) receiving the decisions (d(n)) as input. The direct filter (FF) filters in the frequency domain blocks of M input symbols, and the feedback filter (FB) filters in the frequency domain blocks of L decisions, L being less than M. A device according to the invention enables interference between symbols caused by the reception of echoes to be rectified.
摘要翻译：本发明涉及一种包括直接滤波器（FF）和反馈滤波器（FB）的判决反馈滤波器装置，用于从输入符号（x（n））产生相应的判决（d（n）），直接滤波器（FF）输入符号作为输入，反馈滤波器（FB）接收决定（d（n））作为输入。直接滤波器（FF）在M个输入符号的频域块中滤波，并且在L个判决的频域块中的反馈滤波器（FB）滤波器L小于M.根据本发明的装置能够实现符号之间的干扰由接收到的回音引起的纠正。

3. 发明申请

WO1994021041A1 DIGITAL TIME SIGNAL FILTERING METHOD AND DEVICE FOR TRANSMISSION CHANNEL ECHO CORRECTION 审中-公开
公开(公告)号：WO1994021041A1
公开(公告)日：1994-09-15
申请号：PCT/FR1994000259
申请日：1994-03-09
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE (TDF) S.A. , PALICOT, Jacques , DJOKO KOUAM, Moïse , VEILLARD, Jacques
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE (TDF) S.A.
IPC分类号： H03H17/02
CPC分类号： H03H17/0664 , H03H17/0213
摘要： A method for filtering a time signal (e(t)) sampled in blocks of N samples (e(n),e(k)) by a transfer function defined in the frequency domain by LN samples (H(K)), wherein the transfer function is filtered by a time window (g1) of width N, and a frequency subsampling of ratio N is performed to give a partial transfer function defined over N samples (H1(k)). The method enables the complexity of circuits operating in real time to be optimised, and is particularly suitable for correcting long echoes in television picture receivers.
摘要翻译：一种通过LN样本（H（K））在频域中定义的传递函数来对以N个样本（e（n），e（k））的块进行采样的时间信号（e（t））的方法，其中传递函数被宽度N的时间窗（g1）滤波，并且执行比N的频率子采样以给出在N个样本（H1（k））上定义的部分传递函数。该方法使得实时操作的电路的复杂度得以优化，并且特别适用于校正电视图像接收机中的长回波。

4. 发明申请

WO1996035266A1 ADAPTIVE SUB-BAND FILTERING 审中-公开
标题翻译：自适应滤波滤波
公开(公告)号：WO1996035266A1
公开(公告)日：1996-11-07
申请号：PCT/FR1996000664
申请日：1996-05-02
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE , DE COURVILLE, Marc , DUHAMEL, Pierre , PALICOT, Jacques , MADEC, Philippe
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE
IPC分类号： H04B03/21
CPC分类号： H03H21/0027 , H04B3/21
摘要： A digital signal adaptive filtering method and device are described. The transmitted signal (xn), which is representative of a post-transmission distorted source signal (dn), is adaptively filtered (W*) (1001) to generate a filtered transmitted digital signal (yn). An error signal (en) is formed (1002), which is representative of the algebraic difference between the source signal (dn) and the filtered transmitted digital signal (yn), and which is subdivided (1003), through an orthogonal breaking-up step resulting in a number (N) of frequency sub-bands, into sub-band error signals (ei,n), i ELEMENT [0,N-1]. Each sub-band error signal is sub-sampled in a ratio of (N) and the sub-sampled sub-band error signals (eik) are weighted (1004) with coefficients ( lambda i). The transmitted digital signal (xn) is subdivided (1005) into (N) sub-bands (xi,n) and an adaptation function ( DELTA W*) of the adaptive filter is established (1007) as the sum of the product of each conjugated sub-band component of the transmitted digital signal and the sub-sampled weighted sub-band error signal, to which an adaptive pitch ( mu ) has been allocated. The invention is useful for speech signal echo equalising and cancelling.
摘要翻译：描述了数字信号自适应滤波方法和装置。代表发射后失真源信号（dn）的发射信号（xn）被自适应滤波（W *）（1001）以产生经滤波的发射数字信号（yn）。形成了代表源信号（dn）和滤波后的发送数字信号（yn）之间的代数差，并通过正交分解（1003）进行细分的误差信号（en1）（1002）步骤，产生一个（N）个频率子带，成为子带误差信号（ei，n），iELEMENT [0，N-1]。每个子带误差信号以（N）的比率被子采样，并且子系数（λi）对子采样子带误差信号（eik）进行加权（1004）。发送的数字信号（xn）被细分为（100）为（N）个子带（xi，n），并且自适应滤波器的自适应函数（DELTA W *）被建立为（1007），作为每个发送数字信号的共轭子带分量和被分配了自适应音调（mu）的子采样加权子带误差信号。本发明对于语音信号回波均衡和消除是有用的。

5. 发明申请

WO1996029786A1 METHOD FOR QUANTIZING A SIGNAL ON A REGULAR HEXAGONAL LATTICE, AND ENCODING/DECODING METHODS THEREFOR 审中-公开
标题翻译：用于定期对二进制信号进行信号定标的方法及其编码/解码方法
公开(公告)号：WO1996029786A1
公开(公告)日：1996-09-26
申请号：PCT/FR1996000395
申请日：1996-03-15
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE S.A. , MAINARD, Laurent
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE S.A.
IPC分类号： H03M07/30
CPC分类号： H04L27/38 , H04L25/061
摘要： A method for quantizing a signal on a regular two-dimensional hexagonal lattice by combining points in a two-dimensional space with the values taken by the signal, applying an origin-centred homothety to each point so that all the homothetic points are located within a reference hexagon, determining the points that are closest to the homothetic points and located on said hexagonal lattice, and encoding the co-ordinates of said points of the hexagonal lattice. Said reference hexagon is an origin-centred hexagon rotated through pi /6 rad relative to the Voronoi regions of said hexagonal lattice.
摘要翻译：一种通过将二维空间中的点与信号采集的值组合在一个二维六边形格子上的信号进行量化的方法，对每个点应用原点为中心的同质，使得所有的同源点位于参考六边形，确定最靠近同位点并位于所述六边形格子上的点，以及编码六边形点阵的所述点的坐标。所述参考六边形是相对于所述六边形格子的Voronoi区域旋转通过pi / 6rad的以原点为中心的六边形。

6. 发明申请

WO1996024999A1 ITERATIVE-STRUCTURE DIGITAL SIGNAL RECEPTION DEVICE, AND MODULE AND METHOD THEREFOR 审中-公开
标题翻译：迭代结构数字信号接收装置及其模块及方法
公开(公告)号：WO1996024999A1
公开(公告)日：1996-08-15
申请号：PCT/FR1996000197
申请日：1996-02-06
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE S.A. , DOUILLARD, Catherine , GLAVIEUX, Alain , JEZEQUEL, Michel , BERROU, Claude
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE S.A.
IPC分类号： H04L25/03
CPC分类号： H04L1/005 , H03M13/2957 , H04L1/0066 , H04L1/0071 , H04L25/03178
摘要： A device for receiving signals consisting of a series of digital symbols corresponding to the convolutional coding of source digital data, including p cascaded sensing and decoding modules M1-Mp, where p is at least 2. Each of said modules Mi includes: intersymbol interference correction means (41, 47, 48) supplied via a symbol input Ri and outputting weighted-value estimated symbols Ai,1; means (43) for decoding the estimated symbols Ai,1 by performing operations symmetrical to said convolutional coding and outputting weighted-value decoded signals Ai,2; and means (44, 46) for calculating correction information Zi+1 from said estimated symbol Ai,1 and said decoded signal Ai,2. Said means for correcting each of said modules Mi, except for the first module M1, takes into account at least one item of correction information Zi determined by the preceding module Mi-1.
摘要翻译：一种用于接收包括对应于源数字数据的卷积编码的一系列数字符号的信号的装置，包括p级联感测和解码模块M1-Mp，其中p为至少2.每个所述模块Mi包括：符号间干扰校正通过符号输入Ri提供的输出加权值估计符号Ai，1的装置（41,47,48）; 用于通过执行与所述卷积编码对称的操作并输出加权值解码信号Ai，2来对估计符号Ai，1进行解码的装置（43）以及用于从所述估计符号Ai，1和所述解码信号Ai，2计算校正信息Zi + 1的装置（44,46）。用于校正除了第一模块M1之外的每个所述模块Mi的所述装置考虑由前一模块Mi-1确定的至少一项校正信息Zi。

7. 发明申请

WO1996023382A1 CALL INTERRUPTION BETWEEN TWO TERMINALS BY MEANS OF A CALL FROM A THIRD TERMINAL 审中-公开
标题翻译：通过来自第三终端的呼叫，两个终端之间的呼叫中断
公开(公告)号：WO1996023382A1
公开(公告)日：1996-08-01
申请号：PCT/FR1996000117
申请日：1996-01-24
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE , LOUVEL, Bernard
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE
IPC分类号： H04M03/20
CPC分类号： H04M3/428 , H04M1/57 , H04M3/20 , H04M11/085
摘要： A method for interrupting a voice and/or data transmission call made on an analogue link between two terminals (Tai) via a switching centre (C), wherein a user alert signal (SAU) and a terminal alert signal (SAT) are transmitted via the switching centre to one of the terminals. Between these signals, the call is restored (TC1) between the terminals. To detect the terminal alert signal (SAT), the terminal searches, over a predetermined time, for a pattern transmitted by the switching centre (C) which includes a sequence of a first quiet signal having less than a predetermined power during a first predetermined quiet time, the terminal alert signal (SAT), and a second quiet signal analogous to the first, during a second predetermined quiet time.
摘要翻译：一种用于中断通过交换中心（C）在两个终端（Tai）之间的模拟链路上进行语音和/或数据传输呼叫的方法，其中，经由用户警报信号（SAU）和终端警报信号（SAT）经由交换中心到其中一个终端。在这些信号之间，终端之间的呼叫被恢复（TC1）。为了检测终端警报信号（SAT），终端在预定时间内搜索由切换中心（C）发送的模式，其中包括在第一预定安静期间具有小于预定功率的第一安静信号的序列时间，终端警报信号（SAT）以及类似于第一安静信号的第二安静信号。

8. 发明申请

WO1998030979A1 PERCEPTUAL IMAGE DISTORTION EVALUATION 审中-公开
标题翻译： PERCEPTUAL图像失真评估
公开(公告)号：WO1998030979A1
公开(公告)日：1998-07-16
申请号：PCT/FR1997002222
申请日：1997-12-05
申请人： TELEDIFFUSION DE FRANCE , FRANCE TELECOM , BLIN, Jean, Louis
发明人： TELEDIFFUSION DE FRANCE , FRANCE TELECOM
IPC分类号： G06T09/00
CPC分类号： G06T9/00
摘要： The invention concerns a method for evaluating perceptual image quantization distortion in a fixed image. This method takes into account the specific characteristics of the visual processing of an image to obtain the most accurate evaluation, based on the difference between the reference image (9) and the tested image (8) divided into a plurality of image blocks (I). On the basis of each image block (I), the method consists in computing (1) the luminance point Li,j and the adaptation luminance La, in a non-linear processing (2; 10) and in computing the intermediate contrast (2; 11) DELTA Li,j* = Li,j*-La*, in filtering it (3; 12) according to the spatial orientation of the frequencies, in separating (4;13) the frequencies according to orientation, in a second non linear processing (5; 14), and by computing the point-to-point difference weighted by frequency spatial orientation between the obtained intermediate contrast values, in deducing therefrom the value for each tested image block, the local perceptual contrast distortion.
摘要翻译：本发明涉及一种用于评估固定图像中的感知图像量化失真的方法。该方法基于分割为多个图像块（I）的参考图像（9）和被测图像（8）之间的差异，考虑图像的可视处理的特定特征以获得最准确的评估，。在每个图像块（I）的基础上，该方法包括在非线性处理（2; 10）和计算中间对比度（2）中计算（1）亮点Li，j和适应亮度La ; 11）DELTA Li，j * = Li，j * -La *，根据频率的空间取向在根据取向分离（4; 13）频率时对其进行滤波（3; 12）通过计算由获得的中间对比度值之间的频率空间取向加权的点对点差异，从而推算出每个测试图像块的值，本地感知对比度失真。

9. 发明申请

WO1996008900A1 DATA PACKET ROUTING DEVICE 审中-公开
标题翻译：数据包路由器
公开(公告)号：WO1996008900A1
公开(公告)日：1996-03-21
申请号：PCT/FR1995001172
申请日：1995-09-13
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE S.A. , HELARD, Jean-François , GIACHETTI, Jean-Luc
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE S.A.
IPC分类号： H04L12/56
CPC分类号： H04L12/5602 , H04L2012/5619 , H04L2012/5651 , H04L2012/5674
摘要： Device for routing a transmission unit (30) in a digital data packet transmission system, the transmission unit (30) being designed to receive an incoming data packet flow (Fep), process it and transmit it to at least one receiving unit (40). The routing device separates the incoming data packet flow into several data packet flows (FHP, FMP, FLP), each separate data packet flow (FHP, FMP, FLP) conveying the flow of incoming data packets having the same priority. According to the invention , the routing device (31) consists of a plurality of queues (FIFOH, FIFOM, FIFOL), and a data packet switching device (DAP) for directing each incoming data pack flow (HP, MP, LP) to the input of one of the queues (FIFOH; FIFOM, FIFOL), the queues (FIFOH, FIFOM, FIFOL) being read sequentially.
摘要翻译：用于在数字数据分组传输系统中路由传输单元（30）的设备，所述传输单元（30）被设计为接收输入数据分组流（Fep），处理它并将其发送到至少一个接收单元（40）。路由设备将传入的数据分组流分为几个数据分组流（FHP，FMP，FLP），每个单独的数据分组流（FHP，FMP，FLP）传达具有相同优先级的输入数据分组的流。根据本发明，路由设备（31）由多个队列（FIFOH，FIFOM，FIFOL）和数据分组交换设备（DAP）组成，用于将每个输入数据包流（HP，MP，LP）引导到输入一个队列（FIFOH; FIFOM，FIFOL），队列（FIFOH，FIFOM，FIFOL）被顺序读取。

10. 发明申请

WO1995028058A1 METHOD FOR BROADCASTING GRADUAL CONDITIONAL ACCESS PROGRAMMES WITH DATA FLOW SEPARATION, AND RECEIVER THEREFOR 审中-公开
标题翻译：使用数据流分离方法广泛应用条件访问方案及其接收方法
公开(公告)号：WO1995028058A1
公开(公告)日：1995-10-19
申请号：PCT/FR1995000435
申请日：1995-04-05
申请人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE
发明人： FRANCE TELECOM , TELEDIFFUSION DE FRANCE , GIACHETTI, Jean-Luc , GUILLOU, Louis , PACAUD, Jean-Claude
IPC分类号： H04N07/167
CPC分类号： H04N21/23476 , H04N7/1675
摘要： A method for broadcasting gradual conditional access programmes with data flow separation, and a receiver therefor. A basic flow is formed by providing groups of m successive multiplex elements and a complementary flow is formed by providing groups of p successive multiplex elements. The method is useful in pay television.
摘要翻译：用于广播具有数据流分离的逐步条件访问程序的方法及其接收机。通过提供一组m个连续复用元件形成基本流程，并且通过提供p个连续多路复用元件组来形成互补流。该方法在付费电视中很有用。

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