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1. 发明授权

US08184523B2 Method and system for compensation of a carrier frequency offset in an OFDM receiver 有权
标题翻译：用于补偿OFDM接收机中的载波频率偏移的方法和系统
公开(公告)号：US08184523B2
公开(公告)日：2012-05-22
申请号：US10481061
申请日：2001-06-22
申请人： Maxim Borisovich Belotserkovsky , Vincent Demoulin , Louis Robert Litwin, Jr.
发明人： Maxim Borisovich Belotserkovsky , Vincent Demoulin , Louis Robert Litwin, Jr.
IPC分类号： H04L5/12 , H04L27/00 , H04J11/00
CPC分类号： H03L7/07 , H03L7/093 , H03L7/0991 , H04L27/261 , H04L27/2657 , H04L27/2662 , H04L27/2675 , H04L2027/0026 , H04L2027/0044 , H04L2027/0067
摘要： An Orthogonal Frequency Division Multiplexing (OFDM) receiver that employs N second-order phase-lock loops sharing a common integrator (where N is the number of pilots in the system). The N second order phase-lock loops track out independent pilot phase rotations to facilitate the constructive averaging of the pilots' phase information. At the same time, by sharing a common integrator, the OFDM receiver takes advantage of noise averaging over multiple pilots to obtain a cleaner frequency offset estimation. The OFDM receiver may also compensate for FFT window drift by calculating a phase difference between a selected pair of pilots and tracking the rate of change of the calculated phase difference over time. The calculated phase difference is used to control the position of an upstream FFT window after a predetermined phase difference threshold is exceeded. The tracked rate of change is used to continuously adjust the phase of downstream equalizer taps.
摘要翻译：正交频分复用（OFDM）接收机，其使用共享公共积分器的N个二阶锁相环（其中N是系统中的导频数）。 N个二阶锁相循环跟踪独立导频相位旋转，以便于导频相位信息的建设性平均。同时，通过共享一个共同的积分器，OFDM接收机利用多个导频上的噪声平均来获得更清晰的频率偏移估计。 OFDM接收机还可以通过计算所选择的导频对之间的相位差并跟踪所计算的相位差随时间的变化率来补偿FFT窗漂移。计算出的相位差用于在超过预定的相位差阈值之后控制上游FFT窗口的位置。跟踪的变化率用于连续调节下游均衡水龙头的相位。

2. 发明授权

US07468962B2 Method and apparatus for antenna selection using channel response information in a multi-carrier system 失效
标题翻译：使用多载波系统中的信道响应信息进行天线选择的方法和装置
公开(公告)号：US07468962B2
公开(公告)日：2008-12-23
申请号：US10518555
申请日：2002-06-28
申请人： Maxim Borisovich Belotserkovsky , Vincent Demoulin , Louis Robert Litwin
发明人： Maxim Borisovich Belotserkovsky , Vincent Demoulin , Louis Robert Litwin
IPC分类号： H04Q7/00
CPC分类号： H04L1/0059 , H03M13/00 , H04B7/082 , H04L1/0054 , H04L1/0071 , H04L1/20 , H04L5/0023 , H04L25/0204 , H04L25/022 , H04L27/2647 , H04L27/3411
摘要： The disclosed embodiments relate to a technique for selecting one of several antennas or channels in a receiver based on the quality of the channel response at each of the antennas in a multicarrier system employing convolutional forward error-correction coding. Channel estimates are computed for each subcarrier and monotonic weights are assigned to each subcarrier based on the relative strength of the channel response for that subcarrier. The monotonic weights are mapped to each bit in a symbol for each subcarrier and bits are de-interleaved, if needed. A sliding window evaluation is performed to determine an overall channel quality metric for each channel. The antenna or channel having the highest overall CQM is selected to receive data.
摘要翻译：所公开的实施例涉及用于基于使用卷积前向纠错编码的多载波系统中的每个天线处的信道响应的质量来选择接收机中的几个天线或信道之一的技术。对于每个子载波计算信道估计，并且基于该子载波的信道响应的相对强度，将单调权重分配给每个子载波。如果需要，单调权重被映射到每个子载波的符号中的每个比特，并且比特被解交织。执行滑动窗口评估以确定每个通道的整体通道质量度量。选择具有最高总体CQM的天线或信道以接收数据。

3. 发明授权

US07760616B2 Extracting the phase of an OFDM signal sample 失效
标题翻译：提取OFDM信号样本的相位
公开(公告)号：US07760616B2
公开(公告)日：2010-07-20
申请号：US10523450
申请日：2002-07-31
申请人： Maxim Borisovich Belotserkovsky , Vincent Demoulin , Louis Robert Litwin
发明人： Maxim Borisovich Belotserkovsky , Vincent Demoulin , Louis Robert Litwin
IPC分类号： H04J11/00
CPC分类号： H04L27/2657
摘要： The disclosed embodiments relate to exploiting circuitry that exists in a typical Orthogonal Frequency Division Multiplexing (OFDM) receiver to find the phase of a complex number corresponding to an input signal without implementing additional costly circuitry or employing a relatively slow inverse tangent look-up table. The magnitude of the complex number is normalized and processed through a closed loop to produce an output proportional to the phase of the complex number.
摘要翻译：所公开的实施例涉及利用存在于典型的正交频分复用（OFDM）接收机中的电路以找到对应于输入信号的复数的相位，而不实施额外的昂贵电路或采用相对慢的反向切线查找表。复数的幅度被归一化并通过闭环进行处理以产生与复数的相位成比例的输出。

4. 发明授权

US07697410B2 Centralized buffer architecture for an orthogonal frequency division multiplexing (OFDM) receiver 有权
标题翻译：用于正交频分复用（OFDM）接收机的集中缓冲器架构
公开(公告)号：US07697410B2
公开(公告)日：2010-04-13
申请号：US10523442
申请日：2002-07-31
申请人： Maxim Borisovich Belotserkovsky , Vincent Demoulin , Louis Robert Litwin
发明人： Maxim Borisovich Belotserkovsky , Vincent Demoulin , Louis Robert Litwin
IPC分类号： H04J11/00 , H04B1/10
CPC分类号： H04L27/2647 , H04L27/2656 , H04L27/2657 , H04L2025/03414
摘要： The disclosed embodiments relate to a centralized buffer architecture for an Orthogonal Frequency Division Multiplexing (OFDM) receiver. In this architecture, a central buffer is shared by the main functional blocks or modules of the OFDM receiver. A state machine enables access to the buffer by the functional blocks to maintain buffer coherency.
摘要翻译：所公开的实施例涉及用于正交频分复用（OFDM）接收机的集中式缓冲器架构。在该架构中，中央缓冲器由OFDM接收机的主要功能块或模块共享。状态机可以通过功能块访问缓冲区以保持缓冲区一致性。

5. 发明授权

US08036301B2 Radio transmitter with reduced power consumption 有权
标题翻译：无线电发射机功耗降低
公开(公告)号：US08036301B2
公开(公告)日：2011-10-11
申请号：US10589174
申请日：2005-02-09
申请人： Philippe Gilberton , Vincent Demoulin
发明人： Philippe Gilberton , Vincent Demoulin
IPC分类号： H04L27/20 , H04L25/06 , H04L27/36
CPC分类号： H04B1/0475 , H03F1/02 , H03F3/24 , H03G3/3042 , H04B2001/045
摘要： A technique for controlling a transmitter apparatus is useful for reducing power consumption, and may be particularly applicable to portable apparatuses such as mobile transceivers which employ a battery power supply. According to an exemplary embodiment, the transmitter apparatus includes a power amplifier for amplifying a transmission signal. A processor controls the power amplifier based on a type of digital modulation associated with the transmission signal.
摘要翻译：用于控制发射机装置的技术对于降低功耗是有用的，并且可以特别适用于诸如使用电池电源的移动收发器的便携式设备。根据示例性实施例，发射机设备包括用于放大传输信号的功率放大器。处理器基于与传输信号相关联的数字调制类型来控制功率放大器。

6. 发明授权

US07401134B2 Packet processing architecture 有权
标题翻译：数据包处理架构
公开(公告)号：US07401134B2
公开(公告)日：2008-07-15
申请号：US10523181
申请日：2003-07-25
申请人： Didier Velez , Patrick Lopez , Vincent Demoulin
发明人： Didier Velez , Patrick Lopez , Vincent Demoulin
IPC分类号： G06F15/177 , G06F11/00
CPC分类号： H04L1/0025 , H04L29/06 , H04L49/351 , H04L69/12 , H04L69/18 , H04L69/22
摘要： A system for processing data packets comprising a plurality of data processing blocks and a controller, which allows the configuration parameters used in processing the data blocks to be updated in each data processing blocks at the data packet boundary. The present invention involves a system that utilizes a handshaking method for synchronously exchanging data between data processing blocks, wherein the data processing blocks update configuration parameters based on the type of networking standard used. Each data processing block identifies a first data block in the data packet and transmits a first data signal along with a first output data block of the data packet, wherein the block updates the configuration parameters from the controller only when the first data signal is present. In this manner, the first data signal, which is indicative of the data packet boundary, is propagated along the sequence of data processing blocks.
摘要翻译：一种用于处理数据包的系统，包括多个数据处理块和控制器，其允许在数据分组边界的每个数据处理块中更新用于处理数据块的配置参数。本发明涉及利用握手方法在数据处理块之间同步交换数据的系统，其中数据处理块基于所使用的联网标准的类型来更新配置参数。每个数据处理块识别数据分组中的第一数据块，并且与数据分组的第一输出数据块一起发送第一数据信号，其中，仅当存在第一数据信号时，该块才从控制器更新配置参数。以这种方式，指示数据分组边界的第一数据信号沿着数据处理块的序列被传播。

7. 发明申请

US20070030206A1 Method for operating a transmitting/receiving station of a wireless communication network in antenna diversity mode 审中-公开
标题翻译：用于在天线分集模式下操作无线通信网络的发射/接收台的方法
公开(公告)号：US20070030206A1
公开(公告)日：2007-02-08
申请号：US10576823
申请日：2004-10-19
申请人： Patrick Fontaine , Vincent Demoulin , Ludovic Jeanne
发明人： Patrick Fontaine , Vincent Demoulin , Ludovic Jeanne
IPC分类号： H01Q21/00
CPC分类号： H04B7/0808 , H04B7/0814 , H04B7/0874 , H04W76/10 , H04W88/02
摘要： A method for operating a transmitting/receiving station of a wireless communication network in antenna diversity mode, this station having a plurality of reception antennas, consists in listening to the communications between two other transmitting/receiving stations of the network, successively on each reception antenna, then analysing the quality of listening on each reception antenna so as to identify a reception antenna from among the plurality of reception antennas which sets up the best communication link with one of the said other two transmitting/receiving stations.
摘要翻译：一种用于在天线分集模式中操作无线通信网络的发送/接收站的方法，该站具有多个接收天线，包括在每个接收天线上连续收听网络的其他两个发射/接收站之间的通信，然后分析每个接收天线的收听质量，以便识别与所述另外两个发送/接收站之一建立最佳通信链路的多个接收天线之间的接收天线。

8. 发明申请

US20060258402A1 Method of positioning the antennas of a data transmission system 有权
标题翻译：定位数据传输系统天线的方法
公开(公告)号：US20060258402A1
公开(公告)日：2006-11-16
申请号：US11417841
申请日：2006-05-03
申请人： Samuel Guillouard , Vincent Demoulin , Olivier Mocquard , Eric Auffret
发明人： Samuel Guillouard , Vincent Demoulin , Olivier Mocquard , Eric Auffret
IPC分类号： H04M1/00
CPC分类号： H04B7/0491 , H04B7/0613 , H04B7/10
摘要： The invention pertains to a method of positioning antennas with sectorization in a data transmission system. The method makes it possible to search, by successive approximations, for the sector of each antenna allowing optimal reception of the information. The search step is repetitive.
摘要翻译：本发明涉及在数据传输系统中定位具有扇区化的天线的方法。该方法使得可以通过逐次近似来搜索允许最佳接收信息的每个天线的扇区。搜索步骤是重复的。

9. 发明申请

US20060031424A1 Packet signal processing architecture 有权
标题翻译：分组信号处理架构
公开(公告)号：US20060031424A1
公开(公告)日：2006-02-09
申请号：US10523181
申请日：2003-07-25
申请人： Didier Velez , Patrick Lopez , Vincent Demoulin
发明人： Didier Velez , Patrick Lopez , Vincent Demoulin
IPC分类号： G06F15/177
CPC分类号： H04L1/0025 , H04L29/06 , H04L49/351 , H04L69/12 , H04L69/18 , H04L69/22
摘要： A system for processing data packets comprising a plurality of data processing blocks and a controller, which allows the configuration parameters used in processing the data blocks to be updated in each data processing blocks at the data packet boundary. The present invention involves a system that utilizes a handshaking method for synchronously exchanging data between data processing blocks, wherein the data processing blocks update configuration parameters based on the type of networking standard used. Each data processing block identifies a first data block in the data packet and transmits a first data signal along with a first output data block of the data packet, wherein the block updates the configuration parameters from the controller only when the first data signal is present. In this manner, the first data signal, which is indicative of the data packet boundary, is propagated along the sequence of data processing blocks.
摘要翻译：一种用于处理数据包的系统，包括多个数据处理块和控制器，其允许在数据分组边界的每个数据处理块中更新用于处理数据块的配置参数。本发明涉及利用握手方法在数据处理块之间同步交换数据的系统，其中数据处理块基于所使用的联网标准的类型来更新配置参数。每个数据处理块识别数据分组中的第一数据块，并且与数据分组的第一输出数据块一起发送第一数据信号，其中，仅当存在第一数据信号时，该块才从控制器更新配置参数。以这种方式，指示数据分组边界的第一数据信号沿着数据处理块的序列被传播。

10. 发明授权

US09124340B2 Wideband transceiver device for transmitting and receiving signals from a channel selected in dynamically spread bandwidth 有权
标题翻译：用于从动态扩展带宽中选择的信道发送和接收信号的宽带收发器设备
公开(公告)号：US09124340B2
公开(公告)日：2015-09-01
申请号：US13392512
申请日：2010-08-27
申请人： Jean-Yves Le Naour , Jacques Perraudeau , Vincent Demoulin
发明人： Jean-Yves Le Naour , Jacques Perraudeau , Vincent Demoulin
IPC分类号： H04B1/38 , H04B1/18 , H04B1/00
CPC分类号： H04B1/18 , H04B1/0032 , H04B1/006
摘要： The proposed process makes it possible to noticeably and dynamically increase the operational frequency band of a wideband emission/reception device without performance degradation, this thanks to the implementation of a particular architecture and a judicious distribution of the technical constraints over the analogue and digital sub-assemblies of a user terminal.
摘要翻译：所提出的过程使得可以明显地和动态地增加宽带发射/接收装置的工作频带而不会降低性能，这得益于特定架构的实现和对模拟和数字子载波的技术限制的明智分配，用户终端的组件。

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