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公开(公告)号：US4304000A
公开(公告)日：1981-12-01
申请号：US41041
申请日：1979-05-21
申请人： Georges Bonnerot , Patrice Senn , Michel Coudreuse
发明人： Georges Bonnerot , Patrice Senn , Michel Coudreuse
摘要： To supervise the operation of an arithmetic unit of a digital transmultiplexer intended to convert a TDM-signal into a FDM-signal and vice versa, a pilot signal is utilized as the test signal which pilot signal is also used to control the level of the received FDM-signals and is processed in the transmultiplexer. The pilot signal selection filter used for controlling the level is used, also in time-division multiplex, for selecting a component having a frequency equal to the pilot signal frequency and occurring in each of the two input and output signals of the arithmetic unit.
摘要翻译： 为了监督旨在将TDM信号转换为FDM信号的数字多路转换器的运算单元的操作，反之亦然，导频信号被用作测试信号，该导频信号也用于控制接收到的信号的电平 FDM信号，并在多路复用器中进行处理。 用于控制电平的导频信号选择滤波器也用于时分复用，用于选择具有等于导频信号频率的频率并且发生在运算单元的两个输入和输出信号中的每一个中的分量。
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2.发明授权Arrangement for processing auxiliary signals in a frequency multiplex transmission system 失效用于在频率复用传输系统中处理辅助信号的布置
公开(公告)号：US4101738A
公开(公告)日：1978-07-18
申请号：US697357
申请日：1976-06-18
摘要： A circuit for converting into an FDM format spatially separated signalling signals and pilot signals, comprises a digital filter bank for converting the signals into the FDM format. A receiver for separating the signalling signals and pilot signals from the FDM signal comprises another digital filter bank for producing baseband signals. These filter banks have a transfer characteristic formed by a number of passband curves which are derived from the characteristic of a selected low-pass filter.
摘要翻译： 用于转换成FDM格式的电路用于空间分离的信令信号和导频信号，包括用于将信号转换成FDM格式的数字滤波器组。 用于从FDM信号分离信令信号和导频信号的接收机包括用于产生基带信号的另一个数字滤波器组。 这些滤波器组具有由从所选择的低通滤波器的特性导出的多个通带曲线形成的传递特性。
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3.发明授权Transmission system using differential pulse code modulation with adaptive prediction 失效使用差分脉冲编码调制与自适应预测的传输系统
公开(公告)号：US4520491A
公开(公告)日：1985-05-28
申请号：US439146
申请日：1982-11-04
申请人： Jean M. Raulin , Georges Bonnerot
发明人： Jean M. Raulin , Georges Bonnerot
CPC分类号： H03M3/042
摘要： In this transmission system using differential PCM, the local decoder, inporated in the loop of the encoder, and the remote decoder comprise identical filters (5) and (15) each constituted by a cascade arrangement of several filtering sections (F.sub.1 -F.sub.N) of the first and/or of the second order; each section may have one or two controllable coefficients, which are modified at each sampling instant by a modification term which depends upon the product of the difference signal (e) produced in the encoder and the gradient of the difference signal (e) with respect to the controllable coefficient. When the filtering sections (F.sub.1 -F.sub.N) are recursive, the gradients are obtained by applying a signal corresponding to the difference signal (e) to identical recursive sections (F'.sub.1 -F'.sub.N). When non-recursive filtering sections (H.sub.1 -H.sub.L) are used, the gradient calculation sections (H'.sub.1 -H'.sub.L) are recursive with a transfer function inverse to that of the sections (H.sub.1 -H.sub.L).
摘要翻译： 在使用差分PCM的传输系统中，并入编码器环路的本地解码器和远程解码器包括相同的滤波器（5）和（15），每个滤波器由（15）和（15）组成， 第一和/或二阶; 每个部分可以具有一个或两个可控制的系数，其在每个采样时刻被修改项修改，修改项取决于编码器中产生的差分信号（e）与差分信号（e）相对于 可控系数。 当滤波部分（F1-FN）递归时，通过将与差分信号（e）相对应的信号应用于相同的递归部分（F'1-F'N）来获得梯度。 当使用非递归滤波部分（H1-HL）时，梯度计算部分（H'1-H'L）以与部分（H1-HL）相反的传递函数递归。
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公开(公告)号：US4361893A
公开(公告)日：1982-11-30
申请号：US94408
申请日：1979-11-15
申请人： Georges Bonnerot
发明人： Georges Bonnerot
CPC分类号： H03M7/3044 , H04B14/046
摘要： This system comprises an encoder in which the differential PCM signal to be transmitted is formed as the difference between the incoming linear PCM signal and a prediction signal produced by a prediction filter comprising a local decoder receiving the said differential PCM signal. According to the invention the local decoder and the remote decoder are constructed in an identical manner by means of one or several filtering sections arranged in cascade, each filtering section being of the purely recursive or non-recursive type with one sole coefficient differing from zero and having been provided with its own roundoff (or truncation) device having a step size equal to the quantizing step of the differential PCM signal, the incoming linear PCM signal being rounded (or truncated) in the same manner. This construction enables the cascade arrangement of encoders and decoders without any further degradation of the signal then the degradation produced by the first coding.
摘要翻译： 该系统包括编码器，其中要发送的差分PCM信号被形成为输入线性PCM信号与由包括接收所述差分PCM信号的本地解码器的预测滤波器产生的预测信号之间的差。 根据本发明，本地解码器和远程解码器通过级联布置的一个或多个滤波部分以相同的方式构造，每个滤波部分是纯递归或非递归类型，一个唯一系数不同于零， 已经提供了具有与差分PCM信号的量化步长相同的步长的自己的舍入（或截断）装置，输入的线性PCM信号以相同的方式被舍入（或截断）。 这种结构使得编码器和解码器的级联布置不会导致信号的进一步劣化，而是由第一编码产生的劣化。
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公开(公告)号：US4594725A
公开(公告)日：1986-06-10
申请号：US608060
申请日：1984-06-28
申请人： Lydie Desperben , Hikmet Sari , Said Moridi , Georges Bonnerot
发明人： Lydie Desperben , Hikmet Sari , Said Moridi , Georges Bonnerot
CPC分类号： H04L27/01
摘要： An adaptive equalizer arrangement for digital transmission system comprises at the output of the transmission channel a first in-phase path and in parallel with this first path, a second quadrature path, both paths being of the non-recursive transversal filter type having n branches and (n-1) delay circuits between the inputs of these branches, each of these n branches comprising, arranged in series, a mixer, a low-pass filter, a multiplier, and having their outputs connected to an adder which is followed by a sampling circuit and thereafter by a comparator circuit to decide the symbols to be transmitted from the outputs of these paths. The arrangement also comprises a third control path which comprises two subtracting circuits to determine the differences between the signals before and after decision and a control circuit of a voltage-controlled oscillator, 2n phase shifters and 2n multipliers.
摘要翻译： 用于数字传输系统的自适应均衡器装置包括在传输信道的输出端处具有第一同相路径并且与该第一路径并行的第二正交路径，两个路径是具有n个分支的非递归横向滤波器类型， （n-1）个延迟电路，这些n个分支中的每一个分别包括混频器，低通滤波器，乘法器，并将其输出连接到加法器，后者是 采样电路，然后由比较器电路确定要从这些路径的输出发送的符号。 该装置还包括第三控制路径，其包括两个减法电路，以确定在决定之前和之后的信号与压控振荡器的控制电路之间的差异，2n个移相器和2n个乘法器。
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6.发明授权
公开(公告)号：US5282209A
公开(公告)日：1994-01-25
申请号：US804158
申请日：1991-12-06
申请人： Georges Bonnerot
发明人： Georges Bonnerot
摘要： This system is formed, on the one hand, by a transmitting section (1) comprising coders (CA, CB, CC) for coding according to an error detection code the data to be transmitted over the main channels and comprising a coder (CS) for an auxiliary channel (CHS) and, on the other hand, a receiving section (2) constituted by error detecting circuits (DA, DB, DC, DS). In the transmitting section there is provided a combining circuit (20) for combining the data to be transmitted over the main channels, whereas the auxiliary channel is used for transmitting the combined data. In the receiving section there are provided decombining circuits (USA, USB, USC) for producing replicas of the transmitted data for each of the main transmission channels on the basis of data transmitted over the auxiliary channel. These replicas are used in case of failing transmission channels.
摘要翻译： 该系统一方面由包括编码器（CA，CB，CC）的发送部分（1）形成，用于根据错误检测码对要在主信道上发送的数据进行编码，并包括编码器（CS） 另一方面，由一个辅助信道（CHS）和由错误检测电路（DA，DB，DC，DS）组成的接收部分（2）。 在发送部分中，提供组合电路（20），用于组合要在主信道上发送的数据，而辅助信道用于发送组合数据。 在接收部分中，根据通过辅助信道发送的数据，提供了用于为每个主传输信道生成发送数据的副本的解密电路（USA，USB，USC）。 这些副本用于传输通道发生故障的情况。
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公开(公告)号：US5088110A
公开(公告)日：1992-02-11
申请号：US325085
申请日：1989-03-15
CPC分类号： H04L27/01
摘要： A baseband-controlled passband equalizing arrangement comprises a passband correction circuit for the data signals transmitted by modulating a carrier frequency, a first demodulation circuit which cooperates with a carrier recovery circuit for converting these carrier-modulated data signals into baseband signals, and a control circuit acting on the variable elements provided in the passband correction circuit in response to an estimated error of the baseband signals. The passband correction circuit produces a passband output signal v(t), which is a continuous function of the time t, in response to a passband input signal x(t), which is a continuous function of the time t, in accordance with the relation: ##EQU1## where r.sub.m, .psi..sub.m, .rho..sub.j, .phi..sub.j are variable elements, and .tau..sub.j, .tau..sub.m are fixed delays and M, N are constants.
摘要翻译： 基带控制的通带均衡装置包括用于通过调制载波频率发送的数据信号的通带校正电路，与用于将这些载波调制数据信号转换为基带信号的载波恢复电路协作的第一解调电路，以及控制电路 响应于基带信号的估计误差，作用于提供在通带校正电路中的可变元件。 通带校正电路响应于作为时间t的连续函数的通带输入信号x（t），根据该通带校正电路产生作为时间t的连续函数的通带输出信号v（t） 关系：
其中rm，psi m，rho j，phi j是可变元素，τj，τm是固定延迟，M，N是常数。 -
公开(公告)号：US4051357A
公开(公告)日：1977-09-27
申请号：US662898
申请日：1976-03-01
申请人： Georges Bonnerot
发明人： Georges Bonnerot
CPC分类号： G06F17/142
摘要： An arrangement for computing the discrete Fourier transform intended for converting N samples of a real signal in the time domain to N real Fourier coefficients. This device is implemented with a conventional Fourier transformer of the order N/4, to which an input computer unit and an output computer unit are connected in which a small number of multiplications of complex numbers is performed.
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9.发明授权Apparatus for controlling transmission power over a digital radio communication channel 失效用于控制数字无线电通信信道上的发射功率的装置
公开(公告)号：US4777653A
公开(公告)日：1988-10-11
申请号：US940325
申请日：1986-12-11
CPC分类号： H04W52/20 , H04W52/245 , H04W52/248 , Y02B60/50
摘要： Apparatus for controlling the transmission power of a transmitting station over a digital radio communication channel, based on information relating to the level of the signal received at a receiving station and information relating to the quality of such received signal relative to a predetermined error rate. The signal level information and signal quality information is derived by respective threshold measurement devices in the receiving station, and is transmitted back to the transmitting station over a return channel. The transmitting station comprises means for effecting combined processing of such information to derive a control signal which controls means for increasing or decreasing the transmitting power over a dynamic adjustment range. In a first part of such dynamic range such control is based only on the information relating to received signal level, and over a second part of such range such control is additionally based on the quality of the received signal.
摘要翻译： 用于通过数字无线电通信信道控制发射站的发射功率的装置，其基于与在接收站处接收的信号的电平相关的信息，以及与所述接收信号相对于预定误码率的质量有关的信息。 信号电平信息和信号质量信息由接收站中的相应阈值测量装置导出，并通过返回信道被发送回发送站。 发射站包括用于对这些信息进行组合处理以获得控制信号的装置，该控制信号控制用于在动态调整范围内增加或减少发射功率的装置。 在这种动态范围的第一部分中，这种控制仅基于与接收信号电平相关的信息，并且在这种范围的第二部分上，这种控制另外基于接收信号的质量。
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10.发明授权Circuit for recovering the carrier of an amplitude-and-phase-modulated input signal 失效用于恢复幅度和相位调制输入信号的载波的电路
公开(公告)号：US4587498A
公开(公告)日：1986-05-06
申请号：US587089
申请日：1984-03-07
申请人： Georges Bonnerot , Michel Daout
发明人： Georges Bonnerot , Michel Daout
CPC分类号： H04L27/3818
摘要： A circuit for recovering the carrier of an amplitude-and-phase-modulated input signal (in particular QAM signal) is provided with a frequency-controlled oscillator for producing the carrier, with a quadrature detector for supplying signals representing the amplitude of the input signal projected on two quadrature components P and Q of the carrier signal produced by the oscillator and for thus determining the modulation states of the input signal, and with correction means for forming a correction signal for the frequency control of the oscillator on the basis of output signals from a circuit which determines zones in the plane of the quadrature components P and Q. To provide for a satisfactory operation also in the presence of selective fading, the correction means comprises a weighting circuit connected to the zone-determining circuit for producing the correction signal in accordance with distinct weights allocated to the respective zones defined by the zone-determining circuit.
摘要翻译： 用于恢复幅度和相位调制输入信号（特别是QAM信号）的载波的电路设置有用于产生载波的频率控制振荡器，具有用于提供表示输入信号的幅度的信号的正交检测器 投影在由振荡器产生的载波信号的两个正交分量P和Q上，并且因此确定输入信号的调制状态，以及用于根据输出信号形成用于振荡器的频率控制的校正信号的校正装置 从确定正交分量P和Q的平面中的区域的电路。为了在存在选择性衰落的情况下提供令人满意的操作，校正装置包括连接到区域确定电路的加权电路，用于产生校正信号 根据分配给由区域确定电路限定的相应区域的不同权重。
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