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

IPC分类号： H03H15/00 ,  H03H21/00 ,  H04B3/06 ,  H04L27/01 ,  H04B3/14

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。

公开(公告)号：US4687999A

公开(公告)日：1987-08-18

申请号：US855527

申请日：1986-04-23

申请人： Lydie Desperben ,  Hikmet Sari ,  Said Moridi

发明人： Lydie Desperben ,  Hikmet Sari ,  Said Moridi

IPC分类号： H04L27/38 ,  H04L27/00 ,  H04L27/227 ,  H03D3/18

CPC分类号： H04L27/2273 ,  H04L2027/003 ,  H04L2027/0042 ,  H04L2027/0067

摘要： A circuit for recovering the carrier of a digitally modulated wave having a phase symmetry 2.pi./M, wherein M is the order of the symmetry, includes means for automatic and fast acquisition comprising a voltage-controlled oscillator having an output supplying said carrier and a control input to which an error signal .epsilon.(.phi.) is applied in order to change the oscillator phase and to adjust it to the phase of the digital modulated wave. This wave is introduced in two channels, one being in phase and the other being in quadrature with the carrier, each comprising the series arrangement of: a demodulator, a low-pass filter, reconstruction means for reconstructing a signal and for determining the error between the filtered and reconstructed signals, the quadrature channel comprising in addition a 90.degree. phase shifter, the two channels being joined together with the aid of a phase comparator arrangement which produces a comparison signal and a variable-rate sampling clock. With the representation of the signals from the in-phase and quadrature channels defining the states of a signal constellation of the modulated wave, the phase comparator arrangement comprises means for selecting received signal points with the aid of zones which are centered on or eccentric to certain diagonal states of the signal constellation, and means for generating the sampling clock by eliminating from a recovered symbol clock an active edge capable of validating zero crossings of the comparator signal which do not correspond to a phase difference equal to 2k.pi./M (k and M integers).

摘要翻译： 用于恢复具有相位对称性2π/ M的数字调制波的载波的电路，其中M是对称的阶数，包括用于自动和快速获取的装置，包括具有提供所述载体的输出的压控振荡器和 施加误差信号ε（phi）的控制输入，以便改变振荡器相位并将其调整到数字调制波的相位。 该波被引入两个信道，一个是同相的，另一个与载波正交，每个信道包括串行排列：解调器，低通滤波器，重建装置，用于重构信号， 经过滤波和重建的信号，正交信道另外包括90°移相器，两个通道借助于产生比较信号和可变速率采样时钟的相位比较器装置连接在一起。 通过来自同相和正交信道的信号的表示来限定调制波的信号星座的状态，相位比较器装置包括用于借助于以某一区域为中心或偏心的区域来选择接收信号点的装置 信号星座的对角状态，以及用于通过从恢复的符号时钟消除能够验证比较器信号的零交叉的有效边来产生采样时钟的装置，其不对应于等于2k pi / M（k和 M整数）。

公开(公告)号：US20090239548A1

公开(公告)日：2009-09-24

申请号：US11719745

申请日：2005-11-07

申请人： Adrian G. Spencer ,  Said Moridi

发明人： Adrian G. Spencer ,  Said Moridi

IPC分类号： H04W24/00 ,  G01S3/02

CPC分类号： G01S5/0215 ,  G01S19/21

摘要： A wireless receiver for receiving signals from a satellite positioning system, and receiving signals from a communications system uses a common path in the receiver, and derives position information (60, 230) from the received signals by correlation (50, 210, 220) with a code. In a first mode the deriving is carried out from the received signals excluding selected signals received in time slots used for communications signals. A second mode includes such signals. This enables control of the trade off between accuracy and the latency of the positioning processor to improve the performance over a range of conditions. The mode input can be changed dynamically according to signal strength, or according to the needs of an application.

摘要翻译： 用于从卫星定位系统接收信号和从通信系统接收信号的无线接收机使用接收机中的公共路径，并通过相关（50,210,220）与所接收的信号相关（50,210,220）与 一个代码。 在第一模式中，从除了在通信信号中使用的时隙中接收到的选定信号之外的接收信号进行推导。 第二模式包括这样的信号。 这使得能够在精度和定位处理器的等待时间之间进行权衡控制，以在一定范围的条件下提高性能。 模式输入可以根据信号强度或根据应用的需要动态更改。

公开(公告)号：US07296207B2

公开(公告)日：2007-11-13

申请号：US10534656

申请日：2003-10-30

申请人： Andrew J. Fisher ,  Said Moridi

发明人： Andrew J. Fisher ,  Said Moridi

IPC分类号： H03M13/00

CPC分类号： H04L29/06 ,  H04L69/324

摘要： A method of communicating datagrams between terminals (nodes) of a communications system. In systems operating over unreliable media, redundancy check data can be included in a datagram for use in verifying the integrity of the datagram when received by a terminal; and satisfactory receipt of the datagram can be confirmed by the receiving terminal issuing a response datagram to the originating terminal, for example an acknowledgement. The redundancy check data of a received original datagram (which redundancy check data includes information on the identity of the originating terminal and the content of the datagram) is utilized in the generation of new redundancy check data for the acknowledgement (or other type of response) datagram. The originating terminal receives and processes the response datagram in conjunction with its own local record of the redundancy check data of the original datagram.

摘要翻译： 在通信系统的终端（节点）之间传送数据报的方法。 在通过不可靠介质运行的系统中，冗余校验数据可以包括在数据报中，用于在由终端接收时验证数据报的完整性; 并且可以通过向发起终端发出响应数据报的接收终端确认数据报的令人满意的接收，例如确认。 在生成用于确认（或其他类型的响应）的新的冗余校验数据时，利用接收的原始数据报的冗余校验数据（其冗余校验数据包括关于发起终端的身份的信息和数据报的内容） 数据报 始发终端接收并处理响应数据报并结合其本身原始数据报冗余校验数据的本地记录。

公开(公告)号：US08489123B2

公开(公告)日：2013-07-16

申请号：US11719745

申请日：2005-11-07

申请人： Adrian G. Spencer ,  Said Moridi

发明人： Adrian G. Spencer ,  Said Moridi

IPC分类号： H04W24/00 ,  H04J3/00 ,  H04B7/212 ,  H04B1/00

CPC分类号： G01S5/0215 ,  G01S19/21

摘要： A wireless receiver for receiving signals from a satellite positioning system, and receiving signals from a communications system uses a common path in the receiver, and derives position information (60, 230) from the received signals by correlation (50, 210, 220) with a code. In a first mode the deriving is carried out from the received signals excluding selected signals received in time slots used for communications signals. A second mode includes such signals. This enables control of the trade off between accuracy and the latency of the positioning processor to improve the performance over a range of conditions. The mode input can be changed dynamically according to signal strength, or according to the needs of an application.

摘要翻译： 用于从卫星定位系统接收信号和从通信系统接收信号的无线接收机使用接收机中的公共路径，并通过相关（50,210,220）与所接收的信号相关（50,210,220）与 一个代码。 在第一模式中，从除了在通信信号中使用的时隙中接收到的选定信号之外的接收信号进行推导。 第二模式包括这样的信号。 这使得能够在精度和定位处理器的等待时间之间进行权衡控制，以在一定范围的条件下提高性能。 模式输入可以根据信号强度或根据应用的需要动态更改。

公开(公告)号：US6049575A

公开(公告)日：2000-04-11

申请号：US132400

申请日：1998-08-11

申请人： Said Moridi

发明人： Said Moridi

IPC分类号： H04L7/00 ,  H04L7/02 ,  H04L27/38

CPC分类号： H04L7/0062 ,  H04L27/3854 ,  H04L7/0083

摘要： A digital communication system including a transmitter and a receiver and wherein transmitted digital signal samples are modulated in accordance with a first constellation of modulated signal values. The receiver includes a phase locked loop for synchronizing digital sampling at the receiver with the received signal samples. The synchronism adjustment error is formed from a pseudo-error function which is a weighted combination of first and second errors, the first error being a function of the distance between received samples and the decisions made with respect thereto in the first constellation, the second error being a function of the distance between received samples and the decisions made with respect thereto in a second simplified constellation derived from the first constellation. A weighting is assigned to the second error which may, in one embodiment, be proportional to the first error.

摘要翻译： 一种包括发射机和接收机的数字通信系统，其中发射的数字信号样本根据调制信号值的第一星座进行调制。 接收机包括用于使接收机处的数字采样与接收的信号样本同步的锁相环。 同步调整误差由伪误差函数形成，伪误差函数是第一和第二误差的加权组合，第一误差是接收样本之间的距离和在第一星座中相对于其决定的函数的函数，第二误差 作为从第一星座导出的第二简化星座中的接收样本之间的距离和相对于其的决定的函数。 对第二误差分配加权，在一个实施例中可以与第一误差成正比。

公开(公告)号：US5113414A

公开(公告)日：1992-05-12

申请号：US595346

申请日：1990-10-09

申请人： Georges Karam ,  Said Moridi

发明人： Georges Karam ,  Said Moridi

IPC分类号： H03F1/32 ,  H04B1/62 ,  H04B3/06 ,  H04B7/005 ,  H04L27/01 ,  H04L27/36

CPC分类号： H04B1/62 ,  H03F1/3247 ,  H04L27/368 ,  H03F2200/438 ,  H03F2200/57

摘要： A predistortion arrangement (9) for a digital transmission system transmits complex input data of a constellation by means of a modulator (14) and a power amplifier (15) which distorts the data. The arrangement comprising a predistortion circuit (11) which predistorts the input data in opposite sense before they pass through the amplifier and a transmit filter (10) which applies oversampled filtered data encoded with 2N bits to the predistortion circuit (11) at the rate k/T. The predistortion circuit (11) is formed from an encoder (20) transforming the filtered 2N-bit encoded data into data encoded with 2M bits (M

摘要翻译： 用于数字传输系统的预失真装置（9）通过调制器（14）和扭曲数据的功率放大器（15）来传输星座的复数输入数据。 该装置包括预失真电路（11），它在它们通过放大器之前以相反的意义预失真输入数据;以及发射滤波器（10），其将以2N比特编码的过采样滤波数据以速率k施加到预失真电路（11） / T。 预失真电路（11）由编码器（20）形成，该编码器将经滤波的2N位编码数据变换为以存储复数预失真系数的存储器（51）寻址的2M位（M

公开(公告)号：US20060064622A1

公开(公告)日：2006-03-23

申请号：US10534656

申请日：2003-10-30

申请人： Andrew Fisher ,  Said Moridi

发明人： Andrew Fisher ,  Said Moridi

IPC分类号： H03M13/00

CPC分类号： H04L29/06 ,  H04L69/324

摘要： A method of communicating datagrams between terminals (nodes) of a communications system. In systems operating over unreliable media redundancy check data (136) can be included in a datagram for use in verifying the integrity of the datagram when received (112) by a terminal; satisfactory receipt of the datagram can be confirmed by the receiving terminal issuing (128) a response datagram to the originating terminal, for example an acknowledgement. The present invention utilises the redundancy check data (116) of a received original datagram (which redundancy check data includes information on the identity of the originating terminal and the content of the datagram) in the generation (122) of new redundancy check data for the acknowledgement (or other type of response) datagram. The originating terminal receives (130) and processes (134, 138) the response datagram in conjunction with its own local record of the redundancy check data (136) of the original datagram. In this way, the present invention ensures the response datagram is compact in size whilst enabling the originating terminal not only to verify (138) the integrity of the response datagram but also to recognise (140) the response datagram as being the response to the original datagram.

摘要翻译： 在通信系统的终端（节点）之间传送数据报的方法。 在通过不可靠介质运行的系统中，冗余校验数据（136）可被包括在数据报中，用于在由终端接收（112）时验证数据报的完整性; 数据报的令人满意的接收可以由接收终端向发起终端发出（128）响应数据报，例如确认确认。 在新的冗余校验数据的生成（122）中，本发明利用接收到的原始数据报的冗余校验数据（116）（该冗余校验数据包括关于发起终端的身份的信息和数据报的内容） 确认（或其他类型的响应）数据报。 始发终端接收（130）并处理（134,138）响应数据报以及其原始数据报的冗余校验数据（136）的本身本地记录。 以这种方式，本发明确保响应数据报的大小紧凑，同时使始发终端不仅验证（138）响应数据报的完整性，而且还将响应数据报识别为对原始响应的响应（140） 数据报

公开(公告)号：US5862191A

公开(公告)日：1999-01-19

申请号：US662711

申请日：1996-06-10

申请人： Said Moridi

发明人： Said Moridi

IPC分类号： H04L7/00 ,  H04L7/02 ,  H04L27/38

CPC分类号： H04L7/0062 ,  H04L27/3854 ,  H04L7/0083

摘要： A receiver for use in a synchronous digital communication system wherein transmitted digital signal samples are modulated in accordance with a first constellation of modulated signal values. The receiver includes a phase locked loop for synchronizing digital sampling at the receiver with the received signal samples. The synchronism adjustment error is formed from a pseudo-error function which is a weighted combination of first and second errors, the first error being a function of the distance between received samples and the decisions made with respect thereto in the first constellation, the second error being a function of the distance between received samples and the decisions made with respect thereto in a second simplified constellation derived from the first constellation. A weighting is assigned to the second error which may, in one embodiment, be proportional to the first error.

摘要翻译： 一种在同步数字通信系统中使用的接收机，其中发送的数字信号样本根据调制信号值的第一星座进行调制。 接收机包括用于使接收机处的数字采样与接收的信号样本同步的锁相环。 同步调整误差由伪误差函数形成，伪误差函数是第一和第二误差的加权组合，第一误差是接收样本之间的距离和在第一星座中相对于其决定的函数的函数，第二误差 作为从第一星座导出的第二简化星座中的接收样本之间的距离和相对于其的决定的函数。 对第二误差分配加权，在一个实施例中可以与第一误差成正比。

公开(公告)号：US5619540A

公开(公告)日：1997-04-08

申请号：US283456

申请日：1994-08-01

申请人： Said Moridi ,  Georges Martinez

发明人： Said Moridi ,  Georges Martinez

IPC分类号： H04L27/00 ,  H03M13/25 ,  H04L27/34 ,  H04L27/06 ,  H03D1/00

CPC分类号： H03M13/25

摘要： A decoder for a series of received digital signal samples which are encoded as points in a 2-dimensional constellation of points corresponding to authorized code values, which constellation is sub-divided into a plurality of subsets. The branch length .mu. between a received point and the closest authorized point in a subset is calculated as a function of the magnitude and sign of the error distance between the received point and the closest authorized point of the constellation, and of the displacement between successive authorized points in the subsets. It is thus possible to determine branch length without calculation of squared values and without employing any approximations.

摘要翻译： 一种用于一系列接收的数字信号样本的解码器，其被编码为与授权码值相对应的点的2维星座中的点，该星座被细分为多个子集。 根据接收点与星座最接近的授权点之间的误差距离的大小和符号计算接收点和子集中最接近的授权点之间的分支长度mu，以及连续授权的位移之间的位移的函数 点数子集。 因此，可以在不计算平方值的情况下确定分支长度，并且不使用任何近似值。