Multicarrier digital signal transmission system using filter banks and memory preloading for initialization
    3.
    发明授权
    Multicarrier digital signal transmission system using filter banks and memory preloading for initialization 有权
    多载波数字信号传输系统使用滤波器组和存储器预加载进行初始化

    公开(公告)号:US08520758B2

    公开(公告)日:2013-08-27

    申请号:US13059129

    申请日:2009-09-09

    申请人: Maurice Bellanger

    发明人: Maurice Bellanger

    IPC分类号: H04L5/12

    摘要: A transmission system includes an emitter (100) that includes an iFFT block (101) coupled to a set of memories (102-105) feeding a weighted summation device (106). Switches (113, 114, 115) are introduced at the intput of the memories, in order to load the set of samples provided by the iFFT block when the first symbol is fed to the input of the emitter. This system may also include a receiver (200) that includes a set of memories (202-205) feeding a weighted summation device (206) coupled to a FFT block (201). Switches (213, 214, 215) are introduced at the input of the memories in order to load the set of samples received, corresponding to the first transmitted symbol. A method of transmission with preloading of the memories that is extended to OQAM modulation and MIMO systems is also described.

    摘要翻译: 传输系统包括发射器(100),发射器(100)包括耦合到馈送加权求和装置(106)的一组存储器(102-105)的iFFT块(101)。 在存储器的输入端引入开关(113,114,115),以便当第一符号被馈送到发射器的输入端时加载由iFFT块提供的一组样本。 该系统还可以包括接收器(200),其包括馈送耦合到FFT块(201)的加权求和设备(206)的一组存储器(202-205)。 开关(213,214,215)被引入存储器的输入端,以便加载对应于第一发送符号的接收的样本集合。 还描述了扩展到OQAM调制和MIMO系统的存储器的预加载的传输方法。

    Multicarrier digital transmission system using an OQAM transmultiplexer
    4.
    发明授权
    Multicarrier digital transmission system using an OQAM transmultiplexer 有权
    使用OQAM多路复用器的多载波数字传输系统

    公开(公告)号:US07072412B1

    公开(公告)日:2006-07-04

    申请号:US10111821

    申请日:2000-11-09

    IPC分类号: H04L23/02 H04L7/00

    摘要: An emitter converts a serial input data stream into a set of parallel substreams. An OQAM modulator (120) receives and supplies each substream to an input of a synthesis filter bank (130). Synchronization input(s) of the filter bank receive an OQAM signal that carries a data sequence. This sequence contains frame, superframe and hyperframe synchronization patterns, and specifies the number of bits allocated to each subchannel. A receiver (200) includes an analysis filter bank (210) that decomposes the multicarrier signal into a set of elementary signals for each subchannel. A synchronizing processing block (270) receives output(s) of the filter bank for synchronization subchannel(s). The block (270) includes a first cascade of blocks that control receiver sampling times, and a second cascade of blocks that extract synchronization patterns and subchannel bit assignment data. Other filter bank outputs are each coupled to a cascade subchannel equalizer (220) followed by a data extractor (230) and a parallel-to-serial converter (240).

    摘要翻译: 发射器将串行输入数据流转换成一组并行子流。 OQAM调制器(120)接收每个子流并将其提供给合成滤波器组(130)的输入端。 滤波器组的同步输入接收携带数据序列的OQAM信号。 该序列包含帧,超帧和超帧同步模式,并指定分配给每个子信道的比特数。 接收器(200)包括分析滤波器组(210),其将多载波信号分解成用于每个子信道的一组基本信号。 同步处理块(270)接收用于同步子信道的滤波器组的输出。 块(270)包括控制接收机采样时间的块的第一级联和提取同步模式和子信道位分配数据的第二级联级块。 其他滤波器组输出各自耦合到级联子信道均衡器(220),随后是数据提取器(230)和并行到串行转换器(240)。

    Signal processing system involving a least squares method
    5.
    发明授权
    Signal processing system involving a least squares method 失效
    涉及最小二乘法的信号处理系统

    公开(公告)号:US5633979A

    公开(公告)日:1997-05-27

    申请号:US977934

    申请日:1992-11-18

    申请人: Maurice Bellanger

    发明人: Maurice Bellanger

    CPC分类号: G06K9/00503 G06F17/16

    摘要: A signal processing system involving a least squares method where the system is structured around a microprocessor and includes memory zones 130, 140 and 250 which include Tables for facilitating the signal processing. Input signals are normalized before being applied to the Tables. Use of one of the Tables (130) is made easier by the normalization. The other Tables are involved in rotation processes in the selected least squares algorithm.

    摘要翻译: 一种涉及最小二乘法的信号处理系统,其中系统围绕微处理器构成并且包括存储区130,140和250,其包括便于信号处理的表格。 输入信号在应用于表之前被归一化。 通过标准化使得一个表(130)的使用变得更容易。 其他表参与所选最小二乘法算法中的旋转过程。

    Signal form synthesizer arrangement, transmitter station and receiver
station comprising such an arrangement
    6.
    发明授权
    Signal form synthesizer arrangement, transmitter station and receiver station comprising such an arrangement 失效
    信号形式合成器布置,发射台和接收站包括这种布置

    公开(公告)号:US5604690A

    公开(公告)日:1997-02-18

    申请号:US405338

    申请日:1995-03-16

    申请人: Maurice Bellanger

    发明人: Maurice Bellanger

    CPC分类号: G06F1/022 G06F1/0328

    摘要: A signal form synthesizer comprises a digital generator circuit (1) for generating the synthesis signal to produce a first series of digital samples which are representative of this signal and formed by binary words of N bits, and a digital-to-analog converter circuit (30) for producing an analog version of this signal. Furthermore, there is provided an assembly (40) for filtering in accordance with a band-pass characteristic curve the samples of the first series and for supplying to said digital-to-analog converter circuit (30) a second series of samples formed by binary words of N' bits, where N.gtoreq.N'. A negative feedback loop (45) subtracts the samples of the second series from the samples of the first series.

    摘要翻译: 信号形式合成器包括数字发生器电路(1),用于产生合成信号以产生代表该信号并由N位二进制字形成的第一系列数字样本,以及数模转换器电路 30)用于产生该信号的模拟版本。 此外,提供了一种组件(40),用于根据带通特性曲线对第一系列的采样进行滤波,并且向所述数模转换器电路(30)提供由二进制形成的第二系列采样 N'位的字,其中N> / = N'。 负反馈回路(45)从第一系列的样本中减去第二系列的样本。

    Filter arrangement implementing a least squares method utilizing
rotation matrices
    7.
    发明授权
    Filter arrangement implementing a least squares method utilizing rotation matrices 失效
    使用旋转矩阵实现最小二乘法的滤波器布置

    公开(公告)号:US5495507A

    公开(公告)日:1996-02-27

    申请号:US146378

    申请日:1993-10-29

    申请人: Maurice Bellanger

    发明人: Maurice Bellanger

    CPC分类号: G06F17/16 G06F17/18

    摘要: A filter for implementing a least squares method receives samples x(n+1) and produces error signals e(n+1) based on reference signals y(n+1). Filtered samples y(n+1) are available at an output 28. The filtered samples are calculated based on: angle functions .theta..sub.i (i=1 to n) that form part of rotation matrices; a gain vector G.sub.N (n+1) that is based on the rotation matrices; and the error signals. Because the filtered samples are available the filter is suitable for use in an equalizer in which the reference signal is formed by from the filtered signals, as well as in other applications such as echo cancelers.

    摘要翻译: 用于实现最小二乘法的滤波器接收样本x(n + 1),并且基于参考信号y(n + 1)产生误差信号e(n + 1)。 滤波后的样本y(n + 1)在输出28处可用。经滤波的样本基于形成旋转矩阵的一部分的角度函数θi(i = 1至n)来计算; 基于旋转矩阵的增益矢量GN(n + 1); 和误差信号。 因为滤波后的样本是可用的,所以滤波器适用于均衡器,其中参考信号由滤波信号形成,以及其它应用如回声消除器。

    Systems for the multicarrier transmission of digital data and transmission methods using such systems
    8.
    发明授权
    Systems for the multicarrier transmission of digital data and transmission methods using such systems 有权
    用于数字数据的多载波传输和使用这种系统的传输方法的系统

    公开(公告)号:US08743982B2

    公开(公告)日:2014-06-03

    申请号:US13498592

    申请日:2010-09-28

    申请人: Maurice Bellanger

    发明人: Maurice Bellanger

    IPC分类号: H04K1/10

    CPC分类号: H04L27/2631 H04L27/2652

    摘要: A system includes at least a transmitter having a serial-to-parallel converter, an iFFT block and a frequency de-spreader device that applies each signal that results from multiplying a data sample by one of the predetermined frequency coefficients of the prototype filter of a synthesis filter bank to one of the inputs of the iFFT block presenting a size that is strictly greater than the number of subchannels. Also described is a system including at least one receiver including a serial-to-parallel converter, a FFT block presenting a size that is strictly greater than the number of subchannels of the system, and a frequency de-spreader device that multiplies the signal from each output of the FFT block by one of predetermined frequency coefficients of the prototype filter of an analysis filter bank and sums the results of these multiplications to deliver at least a portion of the output signal from the receiver.

    摘要翻译: 系统至少包括具有串行到并行转换器的发射机,iFFT块和频率解扩器装置,其将由数据采样乘以数据样本产生的每个信号乘以一个原始滤波器的预定频率系数之一 合成滤波器组到iFFT块的输入之一,其呈现严格大于子信道数量的大小。 还描述了一种包括至少一个接收机的系统,该接收机包括串并转换器,呈现严格大于系统的子信道数目的尺寸的FFT块,以及频率解扩器装置, FFT块的每个输出通过分析滤波器组的原型滤波器的预定频率系数之一并且将这些乘法的结果相加以将来自接收器的输出信号的至少一部分传送。

    SYSTEMS FOR THE MULTICARRIER TRANSMISSION OF DIGITAL DATA AND TRANSMISSION METHODS USING SUCH SYSTEMS
    9.
    发明申请
    SYSTEMS FOR THE MULTICARRIER TRANSMISSION OF DIGITAL DATA AND TRANSMISSION METHODS USING SUCH SYSTEMS 有权
    用于数字数据的传输的传输系统和使用这种系统的传输方法

    公开(公告)号:US20120189036A1

    公开(公告)日:2012-07-26

    申请号:US13498592

    申请日:2010-09-28

    申请人: Maurice Bellanger

    发明人: Maurice Bellanger

    IPC分类号: H04B1/707

    CPC分类号: H04L27/2631 H04L27/2652

    摘要: A system includes at least a transmitter having a serial-to-parallel converter, an iFFT block and a frequency de-spreader device that applies each signal that results from multiplying a data sample by one of the predetermined frequency coefficients of the prototype filter of a synthesis filter bank to one of the inputs of the iFFT block presenting a size that is strictly greater than the number of subchannels. Also described is a system including at least one receiver including a serial-to-parallel converter, a FFT block presenting a size that is strictly greater than the number of subchannels of the system, and a frequency de-spreader device that multiplies the signal from each output of the FFT block by one of predetermined frequency coefficients of the prototype filter of an analysis filter bank and sums the results of these multiplications to deliver at least a portion of the output signal from the receiver.

    摘要翻译: 系统至少包括具有串行到并行转换器的发射机,iFFT块和频率解扩器装置,其将由数据采样乘以数据样本产生的每个信号乘以一个原始滤波器的预定频率系数之一 合成滤波器组到iFFT块的输入之一,其呈现严格大于子信道数量的大小。 还描述了一种包括至少一个接收机的系统,该接收机包括串并转换器,呈现严格大于系统的子信道数目的尺寸的FFT块,以及频率解扩器装置, FFT块的每个输出通过分析滤波器组的原型滤波器的预定频率系数之一并且将这些乘法的结果相加以将来自接收器的输出信号的至少一部分传送。

    MULTICARRIER DIGITAL SIGNAL TRANSMISSION SYSTEM USING FILTER BANKS AND MEMORY PRELOADING FOR INITIALIZATION
    10.
    发明申请
    MULTICARRIER DIGITAL SIGNAL TRANSMISSION SYSTEM USING FILTER BANKS AND MEMORY PRELOADING FOR INITIALIZATION 有权
    使用过滤器银行和存储器初始化的多媒体数字信号传输系统

    公开(公告)号:US20110142152A1

    公开(公告)日:2011-06-16

    申请号:US13059129

    申请日:2009-09-09

    申请人: Maurice Bellanger

    发明人: Maurice Bellanger

    IPC分类号: H04L27/36 H04L27/00 H04L27/28

    摘要: A transmission system includes an emitter (100) that includes an iFFT block (101) coupled to a set of memories (102-105) feeding a weighted summation device (106). Switches (113, 114, 115) are introduced at the intput of the memories, in order to load the set of samples provided by the iFFT block when the first symbol is fed to the input of the emitter. This system may also include a receiver (200) that includes a set of memories (202-205) feeding a weighted summation device (206) coupled to a FFT block (201). Switches (213, 214, 215) are introduced at the input of the memories in order to load the set of samples received, corresponding to the first transmitted symbol. A method of transmission with preloading of the memories that is extended to OQAM modulation and MIMO systems is also described.

    摘要翻译: 传输系统包括发射器(100),发射器(100)包括耦合到馈送加权求和装置(106)的一组存储器(102-105)的iFFT块(101)。 在存储器的输入端引入开关(113,114,115),以便当第一符号被馈送到发射器的输入端时加载由iFFT块提供的一组样本。 该系统还可以包括接收器(200),其包括馈送耦合到FFT块(201)的加权求和设备(206)的一组存储器(202-205)。 开关(213,214,215)被引入存储器的输入端,以便加载对应于第一发送符号的接收的样本集合。 还描述了扩展到OQAM调制和MIMO系统的存储器的预加载的传输方法。