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1. 发明授权

US07826569B2 Ingress noise reduction in a digital receiver 有权
标题翻译：数字接收机中的入口噪声降低
公开(公告)号：US07826569B2
公开(公告)日：2010-11-02
申请号：US12106708
申请日：2008-04-21
申请人： Ambroise Popper , Fabien Buda , Hikmet Sari
发明人： Ambroise Popper , Fabien Buda , Hikmet Sari
IPC分类号： H03D1/04
CPC分类号： G11B20/22 , H04B1/123 , H04N7/102
摘要： The invention provides a device for reducing ingress noise in a digital signal, comprising a noise predictor for predicting an amount of ingress noise in the digital signal based on past samples of the ingress noise, and a subtractor for subtracting the predicted amount of ingress noise from the digital signal. Channel distortion is compensated for by a noise-independent equalizer, such as a ZF equalizer, placed upstream of the noise predictor. The device may be incorporated, for example, in a cable modem termination system (CMTS) of an hybrid fiber/coax (HFC) network.
摘要翻译：本发明提供了一种用于减少数字信号中的入噪声的装置，包括：噪声预测器，用于根据进入噪声的过去样本预测数字信号中的入噪声量;以及减法器，用于从数字信号。信道失真由噪声独立的均衡器（例如ZF均衡器）补偿，放置在噪声预测器的上游。该装置可以并入例如混合光纤/同轴电缆（HFC）网络的电缆调制解调器终端系统（CMTS）中。

2. 发明申请

US20090003372A1 INGRESS NOISE REDUCTION IN A DIGITAL RECEIVER 有权
标题翻译：数字接收机中的降噪噪声
公开(公告)号：US20090003372A1
公开(公告)日：2009-01-01
申请号：US12106708
申请日：2008-04-21
申请人： Ambroise Popper , Fabien Buda , Hikmet Sari
发明人： Ambroise Popper , Fabien Buda , Hikmet Sari
IPC分类号： H04J3/00 , H04B1/10 , H04L27/01
CPC分类号： G11B20/22 , H04B1/123 , H04N7/102
摘要： The invention provides a device for reducing ingress noise in a digital signal, comprising a noise predictor for predicting an amount of ingress noise in the digital signal based on past samples of the ingress noise, and a subtractor for subtracting the predicted amount of ingress noise from the digital signal. Channel distortion is compensated for by a noise-independent equalizer, such as a ZF equalizer, placed upstream of the noise predictor. The device may be incorporated, for example, in a cable modem termination system (CMTS) of an hybrid fiber/coax (HFC) network.
摘要翻译：本发明提供了一种用于减少数字信号中的入噪声的装置，包括：噪声预测器，用于根据入侵噪声的过去采样来预测数字信号中的入噪噪声量;以及减法器，用于减去预测的进入噪声量数字信号。信道失真由噪声独立的均衡器（例如ZF均衡器）补偿，放置在噪声预测器的上游。该装置可以并入例如混合光纤/同轴电缆（HFC）网络的电缆调制解调器终端系统（CMTS）中。

3. 发明授权

US07382839B2 Ingress noise reduction in a digital receiver 有权
标题翻译：数字接收机中的入口噪声降低
公开(公告)号：US07382839B2
公开(公告)日：2008-06-03
申请号：US11460287
申请日：2006-07-27
申请人： Ambroise Popper , Fabien Buda , Hikmet Sari
发明人： Ambroise Popper , Fabien Buda , Hikmet Sari
IPC分类号： H03D1/04
CPC分类号： G11B20/22 , H04B1/123 , H04N7/102
摘要： The invention provides a device for reducing ingress noise in a digital signal, comprising a noise predictor for predicting an amount of ingress noise in the digital signal based on past samples of the ingress noise, and a subtractor for subtracting the predicted amount of ingress noise from the digital signal. Channel distortion is compensated for by a noise-independent equalizer, such as a ZF equalizer, placed upstream of the noise predictor. The device may be incorporated, for example, in a cable modem termination system (CMTS) of an hybrid fiber/coax (HFC) network.
摘要翻译：本发明提供了一种用于减少数字信号中的入噪声的装置，包括：噪声预测器，用于根据入侵噪声的过去样本预测数字信号中的入噪噪声量;以及减法器，用于从数字信号。信道失真由噪声独立的均衡器（例如ZF均衡器）补偿，放置在噪声预测器的上游。该装置可以并入例如混合光纤/同轴电缆（HFC）网络的电缆调制解调器终端系统（CMTS）中。

4. 发明授权

US08059769B2 Ingress noise reduction in a digital receiver 有权
标题翻译：数字接收机中的入口噪声降低
公开(公告)号：US08059769B2
公开(公告)日：2011-11-15
申请号：US12891539
申请日：2010-09-27
申请人： Ambroise Popper , Fabien Buda , Hikmet Sari
发明人： Ambroise Popper , Fabien Buda , Hikmet Sari
IPC分类号： H04L25/08
CPC分类号： G11B20/22 , H04B1/123 , H04N7/102
摘要： The invention provides a device (D2) for reducing ingress noise in a digital signal, comprising a noise predictor (20) for predicting an amount of ingress noise in the digital signal (sn) based on past samples of the ingress noise, and a subtractor (21) for subtracting the predicted amount of ingress noise from the digital signal. Channel distortion is compensated for by a noise-independent equalizer (25), such as a ZF equalizer, placed upstream of the noise predictor (20). The device (D2) may be incorporated, for example, in a cable modem termination system (CMTS) of an hybrid fiber/coax (HFC) network.
摘要翻译：本发明提供了一种用于减少数字信号中的入噪声的装置（D2），包括：用于根据进入噪声的过去样本预测数字信号（sn）中入侵噪声量的噪声预测器（20），以及减法器（21），用于从数字信号中减去预测入侵噪声量。信道失真由位于噪声预测器（20）上游的无噪声均衡器（25）补偿，诸如ZF均衡器。设备（D2）可以例如并入混合光纤/同轴电缆（HFC）网络的电缆调制解调器终端系统（CMTS）中。

5. 发明授权

US07106815B2 Ingress noise reduction in a digital receiver 失效
标题翻译：数字接收机中的入口噪声降低
公开(公告)号：US07106815B2
公开(公告)日：2006-09-12
申请号：US10120968
申请日：2002-04-10
申请人： Ambroise Popper , Fabien Buda , Hikmet Sari
发明人： Ambroise Popper , Fabien Buda , Hikmet Sari
IPC分类号： H04L25/08 , H04L27/22 , H04R3/20
CPC分类号： G11B20/22 , H04B1/123 , H04N7/102
摘要： The invention provides a device (D2) for reducing ingress noise in a digital signal, comprising a noise predictor (20) for predicting an amount of ingress noise in the digital signal (sn) based on past samples of the ingress noise, and a subtractor (21) for subtracting the predicted amount of ingress noise from the digital signal. Channel distortion is compensated for by a noise-independent equalizer (25), such as a ZF equalizer, placed upstream of the noise predictor (20). The device (D2) may be incorporated, for example, in a cable modem termination system (CMTS) of an hybrid fiber/coax (HFC) network.
摘要翻译：本发明提供了一种用于减少数字信号中的入噪声的装置（D 2），包括用于基于过去预测数字信号（s）中入侵噪声量的噪声预测器（20）入侵噪声的样本，以及用于从数字信号中减去预测入侵噪声量的减法器（21）。信道失真由位于噪声预测器（20）上游的无噪声均衡器（25）补偿，诸如ZF均衡器。装置（D 2）可以并入例如混合光纤/同轴电缆（HFC）网络的电缆调制解调器终端系统（CMTS）中。

6. 发明申请

US20070019767A1 Method and system for synchronizing a base station of a wireless communication system and a subscriber communication equipment 有权
标题翻译：用于使无线通信系统的基站与用户通信设备同步的方法和系统
公开(公告)号：US20070019767A1
公开(公告)日：2007-01-25
申请号：US11477916
申请日：2006-06-30
申请人： Fabien Buda , Emmanuel Lemois , Bertrand Debray
发明人： Fabien Buda , Emmanuel Lemois , Bertrand Debray
IPC分类号： H04L7/00
CPC分类号： H04L7/0029
摘要： The method for synchronising a base station of a wireless communication system and a subscriber communication equipment located in the coverage area of the base station comprises the steps of compensating a sampling frequency offset in the subscriber equipment by interpolating input and/or output signals of a radio frequency part (30) of the communication equipment to generate samples corresponding to the original symbol timing of the base station, and compensating the carrier frequency offset from the estimate of the sampling clock error.
摘要翻译：用于同步无线通信系统的基站和位于基站的覆盖区域中的用户通信设备的方法包括以下步骤：通过内插无线电的输入和/或输出信号来补偿用户设备中的采样频率偏移通信设备的频率部分（30）产生与基站的原始符号定时相对应的样本，并且从采样时钟误差的估计中补偿载波频率偏移。

7. 发明授权

US07142620B2 Multiple input, multiple output channel, digital receiver tuner 失效
公开(公告)号：US07142620B2
公开(公告)日：2006-11-28
申请号：US09974030
申请日：2001-10-10
申请人： Fabien Buda
发明人： Fabien Buda
IPC分类号： H04B7/10 , H04B3/00
CPC分类号： H04N21/4263 , H03D3/006 , H03D3/007 , H04B1/0003 , H04B1/406 , H04N5/4401 , H04N5/50 , H04N7/17309 , H04N21/4383
摘要： The present invention teaches a compact and highly integrated multiple-channel digital tuner and receiver architecture, suitable for widespread field deployment, wherein each receiver demodulator channel may be remotely, automatically, dynamically, and economically configured for a particular cable, carrier frequency, and signaling baud-rate, from an option universe that includes a plurality of input cables, a plurality of carrier frequencies, and a plurality of available baud-rates. A multiple coax input, multiple channel output, digital tuner is partitioned into a multiple coax input digitizer portion and a multiple channel output front-end portion. The digitizer portion consists of N digitizers and accepts input signals from N coax cables and digitizes them with respective A/D converters. The front-end portion consists of M front-ends and provides M channel outputs suitable for subsequent processing by M respective digital demodulators. In a first clock domain, a fixed predetermined A/D sampling rate is chosen to provide oversampling of the inputs by a common integer multiple of all the symbol rates of interest. A plurality other clock domains operate at selectable sub-multiples of the first domain as required to deliver a constant number of symbol samples at the output of each front-end. At the input to each of the M front-ends is a respective input selector coupled to each of the N streams of digitized input data followed by a digital signal scaler that dynamically scales the selected incoming stream of digitized input data as a function of the signal power of the channel's associated carrier.

8. 发明申请

US20120140683A1 METHOD OF EXPLOITATION OF CO-CHANNEL INTERFERENCE, APPARATUS AND COMPUTER PROGRAM 有权
标题翻译：共通道干扰的使用方法，装置和计算机程序
公开(公告)号：US20120140683A1
公开(公告)日：2012-06-07
申请号：US13306464
申请日：2011-11-29
申请人： Weixiao Xu , Fabien Buda , Serdar Sezginer
发明人： Weixiao Xu , Fabien Buda , Serdar Sezginer
IPC分类号： H04W4/00 , H04J3/00
CPC分类号： H04W84/12 , H04B7/0413 , H04L25/0204 , H04L25/023
摘要： A method of canceling co-channel interference of a signal received by a mobile station having at least two receiving antennas, in a cellular OFDMA-TDD communication network having a serving base station and at least one interfering base station. The signal is a result of a serving signal transmitted by the serving base station which is distorted by at least one interfering signal transmitted by the interfering base station. The serving signal is transmitted with a first modulation scheme and the interfering signal is transmitted with a second modulation scheme. The method includes: a channel estimation phase delivering channel estimations of the serving signal and the interfering signal; and a MIMO detecting phase, detecting symbols by using the channel estimations of the serving signal and the interfering signal. The MIMO detection phase is realized using a non-linear method which uses the first modulation scheme and the second modulation scheme.
摘要翻译：一种在具有服务基站和至少一个干扰基站的蜂窝OFDMA-TDD通信网络中消除由具有至少两个接收天线的移动台接收的信号的同信道干扰的方法。信号是由服务基站发送的由干扰基站发送的至少一个干扰信号而失真的服务信号的结果。以第一调制方式发送服务信号，以第二调制方式发送干扰信号。该方法包括：信道估计阶段，传送服务信号和干扰信号的信道估计; MIMO检测相位，通过使用服务信号的信道估计和干扰信号来检测符号。使用使用第一调制方式和第二调制方式的非线性方法来实现MIMO检测相位。

9. 发明授权

US06460162B1 Product code iterative decoding 失效
标题翻译：产品代码迭代解码
公开(公告)号：US06460162B1
公开(公告)日：2002-10-01
申请号：US09446152
申请日：1999-12-17
申请人： Fabien Buda , Juing Fang
发明人： Fabien Buda , Juing Fang
IPC分类号： G06F1110
CPC分类号： H03M13/616 , H03M13/2909 , H03M13/2948 , H03M13/3776 , H03M13/45 , H03M13/451
摘要： A method of soft input to soft output decoding of a word s of a block linear code of dimension k and length n received from a transmission channel is provided, including generating a list of firm words (ub) of the code close to the received code word (s) by coding a list of k-tuplets obtained by firmly approximating components of the received word and changing the least likely components, and calculating the jth component of the output soft word as the difference between the metrics of the closest generated code word and the closest generated code word having an opposite jth component, or, failing this, the farthest generated code word. Also provided is a method of iterative decoding of a product code word received on a transmission channel using the soft input to soft output decoding method. It rapidly and efficiently decodes product code words without an algebraic decoder.
摘要翻译：提供了一种软输入到从输送通道接收的尺寸k和长度为n的块线性码的字s的软输出解码的方法，包括生成靠近所接收的代码的代码的公司字（ub）的列表通过对通过严格地近似接收到的单词的分量并且改变最不可能的分量而获得的k-元组的列表进行编码，并且计算输出软字的第j个分量作为最接近生成的代码字的度量之间的差并且最接近的生成代码字具有相反的第j个分量，或者不这样做，最远的生成代码字。还提供了使用软输入到软输出解码方法在传输信道上接收的乘积码字的迭代解码的方法。它可以快速有效地解码不带代数解码器的产品代码字。

10. 发明授权

US08509131B2 Tile allocation method 有权
标题翻译：平铺分配方法
公开(公告)号：US08509131B2
公开(公告)日：2013-08-13
申请号：US13246347
申请日：2011-09-27
申请人： Bertrand Muquet , Amélie Duchesne , Fabien Buda , Bertrand Debray
发明人： Bertrand Muquet , Amélie Duchesne , Fabien Buda , Bertrand Debray
IPC分类号： H04B7/00 , H04W4/00
CPC分类号： H04L5/0023 , H04B7/0404 , H04B7/0608 , H04B7/0671 , H04L5/0042 , H04W52/42
摘要： A method and apparatus are provided for allocating and transmitting groups of subcarriers, called tiles, between a plurality of transceiver antennas. The method includes receiving at least one downlink signal by a subscriber station transceiver through at least one of the plurality of subscriber station antennas, characterizing a received signal of at least one downlink signal over multiple subcarriers, and allocating tiles for uplink transmission through at least one of the plurality of transceiver antennas. The tiles allocation is based on the characterized received signal of the at least one downlink signal over multiple subcarriers and is based on a required power Ptx for uplink transmission compared with a maximum power P that each of the plurality of the transceiver antennas can emit.
摘要翻译：提供一种方法和装置，用于在多个收发天线之间分配和发送称为瓦片的子载波组。所述方法包括：通过所述多个用户台天线中的至少一个用户站收发信机接收至少一个下行链路信号，表征多个子载波上的至少一个下行链路信号的接收信号，以及通过至少一个的多个收发天线。瓦片分配基于多个子载波上的至少一个下行链路信号的表征的接收信号，并且基于用于上行链路传输的所需功率Ptx与多个收发器天线中的每一个可以发射的最大功率P相比较。

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