公开(公告)号：US06904550B2

公开(公告)日：2005-06-07

申请号：US10331692

申请日：2002-12-30

申请人： Salvador Sibecas ,  Glafkos Stratis ,  Celestino Corral ,  Shahriar Enami ,  Gregg Rasor ,  Robert Gorday

发明人： Salvador Sibecas ,  Glafkos Stratis ,  Celestino Corral ,  Shahriar Enami ,  Gregg Rasor ,  Robert Gorday

IPC分类号： H04L27/26 ,  G01R31/28 ,  H04J3/12 ,  H04L7/00

CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L25/0226 ,  H04L25/0232 ,  H04L27/34

摘要： An orthogonal frequency division multiplexing (OFDM) transmitter method, consistent with certain embodiments of the present invention arranges OFDM data symbols representing data bits for transmission in a packet. A prescribed pattern of OFDM data symbols are removed (212) and replaced (216) with pilot symbols. The packet is then transmitted (220) to an OFDM receiver that receives the packet (224) and determines a channel correction factor from the pilot pattern. The receiver then estimates a plurality of channel correction factors, one for each of the plurality of OFDM symbols representing data (228) and uses these correction factors to correct the OFDM symbols representing data (232). Arbitrary data are then inserted in place of the pilot symbols (236). The OFDM symbols representing data along with the arbitrary data are then decoded using an error correction decoder that corrects the errors induced by substitution of the pilot symbols for data symbols (240).

摘要翻译： 与本发明的某些实施例一致的正交频分复用（OFDM）发射机方法将表示用于传输的数据比特的OFDM数据符号排列在分组中。 用导频符号去除（212）并且替换（216）OFDM数据符号的规定模式。 然后将分组发送（220）到接收分组（224）并从导频模式确定信道校正因子的OFDM接收机。 接收机然后估计多个信道校正因子，一个用于代表数据（228）的多个OFDM符号中的每一个，并且使用这些校正因子来校正表示数据（232）的OFDM符号。 然后插入任意数据代替导频符号（236）。 然后使用错误校正解码器对表示数据以及任意数据的OFDM符号进行解码，纠错解码器校正由数据符号（240）导频符号的替换引起的错误。

公开(公告)号：US07933343B2

公开(公告)日：2011-04-26

申请号：US10331696

申请日：2002-12-30

申请人： Shahriar Emami ,  Celestino Corral ,  Gregg Rasor ,  Salvador Sibecas ,  Glafkos Stratis

发明人： Shahriar Emami ,  Celestino Corral ,  Gregg Rasor ,  Salvador Sibecas ,  Glafkos Stratis

IPC分类号： H04K1/10

CPC分类号： H04L27/2614 ,  H01Q21/24 ,  H04B7/10 ,  H04L27/2602

摘要： An Orthogonal Frequency Division Multiplexer (OFDM) transmitter and receiver apparatus consistent with certain embodiments of the present invention receives data to be transmitted and maps (204) a first portion of the data to a first polarization state and a second portion of the data to a second polarization state. A first transmitter (216) transmits the first portion of the data as a set of first OFDM subcarriers using an antenna (230) exhibiting a first polarization. A second transmitter (234) transmits the second portion of the data as a set of second OFDM subcarriers using an antenna (240) exhibiting a second polarization, wherein the first polarization is orthogonal to the second polarization. A receiver apparatus uses a first antenna (302) exhibiting the first polarization and a second antenna (306) exhibiting the second polarization. A first OFDM receiver (310) receives a first set of polarized OFDM subcarriers from the first antenna (302) while a second OFDM receiver (324) receives a second set of polarized OFDM subcarriers from the second antenna (306). A decoder (330) decodes the first and second sets of OFDM subcarriers and combines them into a stream of data.

摘要翻译： 与本发明的某些实施例一致的正交频分复用器（OFDM）发射机和接收机设备接收要发送的数据，并将数据的第一部分（204）映射（204）到第一极化状态，并将数据的第二部分映射（204）到 第二极化状态。 第一发射机（216）使用表现出第一极化的天线（230）来发送数据的第一部分作为一组第一OFDM子载波。 第二发射机（234）使用表现出第二极化的天线（240）将数据的第二部分作为第二OFDM子载波的集合发送，其中第一极化与第二极化正交。 接收机装置使用表现出第一极化的第一天线（302）和呈现第二极化的第二天线（306）。 第一OFDM接收器（310）从第一天线（302）接收第一组偏振OFDM子载波，而第二OFDM接收器（324）从第二天线（306）接收第二组偏振OFDM子载波。 解码器（330）解码第一和第二组OFDM子载波，并将它们组合成数据流。

公开(公告)号：US20060009231A1

公开(公告)日：2006-01-12

申请号：US10886479

申请日：2004-07-07

申请人： Shahrian Emami ,  Celestino Corral ,  Gregg Rasor ,  Salvador Sibecas ,  Glafkos Stratis

发明人： Shahrian Emami ,  Celestino Corral ,  Gregg Rasor ,  Salvador Sibecas ,  Glafkos Stratis

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04Q7/20

CPC分类号： H04B17/309 ,  H04W72/085

摘要： A technique is used in a wideband wireless communication system (100). In some embodiments available channels are determined (310) and one is selected (315) for assignment to each of a set of communication units based on a relative frequency path loss for each available channel. In some embodiments a communication unit is assigned (505) a channel selected from among available channels and a relative signal loss parameter of the communication unit, such as transmit power, is adjusted (510), based on a relative frequency path loss determined from the channel frequency of the assigned channel. In other embodiments, transmit information is split (705) into a plurality of data streams, each characterized by an associated relative signaling sensitivity, and each data stream is assigned (715) to one of a plurality of the transmit channels, wherein data streams are assigned channels of decreasing channel frequencies in order of decreasing associated relative signaling sensitivities of the data streams.

摘要翻译： 在宽带无线通信系统（100）中使用技术。 在一些实施例中，确定可用信道（310），并且基于每个可用信道的相对频率路径损耗来选择（315）用于分配给一组通信单元中的每一个的可用信道。 在一些实施例中，通信单元被分配（505）从可用信道中选择的信道，并且基于从所述信道确定的相对频率路径损耗来调整（510）所述通信单元的相对信号丢失参数（例如发射功率）（510） 分配频道的频道频率。 在其他实施例中，发送信息被分割（705）到多个数据流中，每个数据流的特征在于相关联的相对信令灵敏度，并且每个数据流被分配（715）到多个发送信道之一，其中数据流是 分配的信道频率减少的顺序是减少数据流的相关的相对信令灵敏度。

公开(公告)号：US07310379B2

公开(公告)日：2007-12-18

申请号：US10631430

申请日：2003-07-31

申请人： Salvador Sibecas ,  Celestino A. Corral ,  Shahriar Emami ,  Glafkos Stratis ,  Gregg Rasor

发明人： Salvador Sibecas ,  Celestino A. Corral ,  Shahriar Emami ,  Glafkos Stratis ,  Gregg Rasor

IPC分类号： H04B7/02

CPC分类号： H01Q21/24 ,  H04B7/10 ,  H04L27/2602 ,  H04L27/2614

摘要： Communication systems include a transmitter that modulates a radio signal transmitted from two differently polarized antennas during a state time in which a wave state of the radio signal conveys information and is based on one or more polarization states selected from a constellation of polarization states comprising at least three polarization states. The communication system includes a receiver that intercepts the radio signal by two differently polarized antennas during the state time, and demodulates the signal. The polarization states may identify user devices or may quantify a portion of the information intended for a user device.

摘要翻译： 通信系统包括发射机，其在无线电信号的波状态传送信息并且基于从包括至少包括的偏振态的星座中选择的一个或多个极化状态的状态时间期间调制从两个不同极化的天线发射的无线电信号 三极化状态。 该通信系统包括一个接收器，用于在状态时间内通过两个不同极化的天线截取无线电信号，并解调该信号。 极化状态可以识别用户设备或者可以量化用于用户设备的信息的一部分。

公开(公告)号：US07377155B2

公开(公告)日：2008-05-27

申请号：US11238448

申请日：2005-09-29

申请人： Neel K. Mani ,  David A. Johnson ,  Michael A. Berzins ,  Gregg Rasor

发明人： Neel K. Mani ,  David A. Johnson ,  Michael A. Berzins ,  Gregg Rasor

IPC分类号： G01M17/02

CPC分类号： G01M17/022 ,  B60C99/006

摘要： An improved method for determining an initial flat spot magnitude on a tire that has been resting for a period of time on a substantially flat surface uses regression analysis. In accordance with the method, values of a tire flat spot magnitude for a particular type of tire are determined at a number of measurement intervals by a uniformity machine that spins the tire. An equation having at least two exponentially decaying terms is then determined that corresponds to the measured data points. Regression analysis is then used to determine an estimate for an initial flat spot magnitude. The method can be used to evaluate the effectiveness of different tire designs with respect to flat spot recovery rates.

摘要翻译： 用于确定在基本平坦的表面上已经停留一段时间的轮胎上的初始平均斑点幅值的改进方法使用回归分析。 根据该方法，通过旋转轮胎的均匀机器以多个测量间隔确定特定轮胎的轮胎平均值的值。 然后确定具有至少两个指数衰减项的方程，其对应于测量的数据点。 然后使用回归分析来确定初始平均斑点幅度的估计。 该方法可用于评估不同轮胎设计相对于平面点回收率的有效性。

公开(公告)号：US20070083346A1

公开(公告)日：2007-04-12

申请号：US11238448

申请日：2005-09-29

申请人： Neel Mani ,  David Johnson ,  Michael Berzins ,  Gregg Rasor

发明人： Neel Mani ,  David Johnson ,  Michael Berzins ,  Gregg Rasor

IPC分类号： G06F17/10

CPC分类号： G01M17/022 ,  B60C99/006

摘要： An improved method for determining an initial flat spot magnitude on a tire that has been resting for a period of time on a substantially flat surface uses regression analysis. In accordance with the method, values of a tire flat spot magnitude for a particular type of tire are determined at a number of measurement intervals by a uniformity machine that spins the tire. An equation having at least two exponentially decaying terms is then determined that corresponds to the measured data points. Regression analysis is then used to determine an estimate for an initial flat spot magnitude. The method can be used to evaluate the effectiveness of different tire designs with respect to flat spot recovery rates.

摘要翻译： 用于确定在基本平坦的表面上已经停留一段时间的轮胎上的初始平均斑点幅值的改进方法使用回归分析。 根据该方法，通过旋转轮胎的均匀机器以多个测量间隔确定特定轮胎的轮胎平均值的值。 然后确定具有至少两个指数衰减项的方程，其对应于测量的数据点。 然后使用回归分析来确定初始平均斑点幅度的估计。 该方法可用于评估不同轮胎设计相对于平面点回收率的有效性。

公开(公告)号：US5050236A

公开(公告)日：1991-09-17

申请号：US532774

申请日：1990-06-04

申请人： Thomas G. Colman ,  Gregg Rasor

发明人： Thomas G. Colman ,  Gregg Rasor

IPC分类号： H01Q1/22 ,  H01Q7/08 ,  H01Q21/29

CPC分类号： H01Q1/22 ,  H01Q21/29 ,  H01Q7/08

摘要： A radio frequency field strength enhancement system (402) having a member (404) with at least one tuning impedance (405) for adjusting a desired frequency response associated with the member (404) and means for retaining (408) the member (404) in close proximity to a radio frequency communication device (401) having an integrally mounted antenna system (214). When the radio frequency communication device (401) is brought within close proximity of the RF field strength enhancer (402), the power received or transmitted by the integrally mounted antenna system (214) in the RF communication device (401) is enhanced.

摘要翻译： 具有具有至少一个调谐阻抗（405）的构件（404）的射频场强增强系统（402），用于调节与所述构件（404）相关联的期望频率响应，以及用于保持（408）所述构件（404）的装置， 紧邻具有整体安装的天线系统（214）的射频通信设备（401）。 当射频通信设备（401）进入紧邻RF场强增强器（402）时，增强了由RF通信设备（401）中的整体安装的天线系统（214）接收或传输的功率。