公开(公告)号：US20050193305A1

公开(公告)日：2005-09-01

申请号：US10518555

申请日：2002-06-28

申请人： Maxim Belotserkovsky ,  Vincent Demoulin ,  Louis Robert Litwin

发明人： Maxim Belotserkovsky ,  Vincent Demoulin ,  Louis Robert Litwin

IPC分类号： H03M13/41 ,  G06F11/00 ,  H03M13/00 ,  H04J11/00 ,  H04L1/00 ,  H04L1/20 ,  H04L25/02 ,  H04L25/06 ,  H04L27/26 ,  G06F11/30 ,  G08C25/00

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。

公开(公告)号：US06914895B1

公开(公告)日：2005-07-05

申请号：US09673713

申请日：1999-04-21

申请人： Gilles Straub ,  Helmut Buerklin ,  Vincent Demoulin ,  Renaud Dore ,  Patrick Lopez

发明人： Gilles Straub ,  Helmut Buerklin ,  Vincent Demoulin ,  Renaud Dore ,  Patrick Lopez

IPC分类号： H04J3/06 ,  H04L7/00 ,  H04L12/28 ,  H04L12/40 ,  H04L12/46 ,  H04L12/64

CPC分类号： H04L12/40058 ,  H04J3/0652 ,  H04L12/4011 ,  H04L12/6418 ,  H04W48/08 ,  H04W56/00

摘要： A process for synchronization in a communications network comprising at least two buses interconnected by a wireless communications network, each bus being linked to the wireless communications network by a portal. The process comprises the steps of: determining a so-called cycle server portal whose own clock will serve as a reference for the other portals; transmitting, via each portal, a synchronization signal at a predetermined instant with respect to the start of a frame and characteristic of each portal, the frame being defined with respect to each portal's own internal clock, the synchronization signal being achieved via the insertion of a control window; and detecting, via each portal, the control windows of other portals and selecting one of the detected windows for the synchronization of the receiver portal's own clock with the clock of the cycle server portal, the selected window corresponding to a portal whose clock is already synchronized with that of the cycle server portal. The invention also relates to receiver and transmitter apparatuses implementing the process.

摘要翻译： 一种用于在通信网络中同步的过程，包括由无线通信网络互连的至少两个总线，每个总线由门户链接到无线通信网络。 该过程包括以下步骤：确定所谓的周期服务器门户，其自己的时钟将用作其他门户的参考; 经由每个门户在相对于帧的开始和每个门户的特征的预定时刻发送同步信号，该帧相对于每个门户自己的内部时钟被定义，所述同步信号通过插入一个 控制窗口 并且经由每个门户检测其他门户的控制窗口，并且选择所检测到的窗口之一用于使接收器门户自己的时钟与周期服务器门户的时钟同步，所选择的窗口对应于其时钟已经同步的门户 与循环服务器门户。 本发明还涉及实现该过程的接收机和发射机设备。

公开(公告)号：US5338438A

公开(公告)日：1994-08-16

申请号：US788216

申请日：1991-11-05

申请人： Vincent Demoulin ,  Marc Fersing ,  Thierry Patureaux ,  Denis Pontvianne

发明人： Vincent Demoulin ,  Marc Fersing ,  Thierry Patureaux ,  Denis Pontvianne

IPC分类号： C10G11/18 ,  C10G11/20

CPC分类号： C10G11/18

摘要： A process for the substantial homogenization of the mixture of hot solid particles and of the hydrocarbon vapors to be treated within a tubular reactor (preferably an FCC unit) for the cracking of hydrocarbons in a fluidized bed of hot solid particles. Directly downstream of the zone of injection, in the reaction zone of the feedstock to be or being treated, usually where at least 75 percent of the droplets of the feedstock are vaporized, there is injected into the reactor a fluid in the gaseous state at one or more points on the interior surface of the side wall of the reactor.

摘要翻译： 一种用于在热固体颗粒的流化床中裂化烃的管式反应器（优选FCC单元）中的热固体颗粒和待处理的烃蒸气的混合物的显着均化的方法。 在进料区域的直接下游，在要进行或正在处理的原料的反应区域中，通常在原料液滴中至少75％蒸发的情况下，将反应器中的气体以一种方式注入反应器 或更多的点在反应器的侧壁的内表面上。