公开(公告)号：US07415245B2

公开(公告)日：2008-08-19

申请号：US10815171

申请日：2004-03-31

申请人： Keith R Tinsley ,  Jeffery R Foerster ,  Minnie Ho ,  Evan R Green ,  Luiz M. Franca-Neto ,  Siva G. Narendra

发明人： Keith R Tinsley ,  Jeffery R Foerster ,  Minnie Ho ,  Evan R Green ,  Luiz M. Franca-Neto ,  Siva G. Narendra

IPC分类号： H04B15/00

CPC分类号： H04B1/69 ,  H04B1/71635

摘要： An ultrawideband radio frequency pulse is generated by shaping a carrier signal having a selected frequency with a window function. The shaped carrier is gated to produce the ultrawideband pulse. In further embodiments, the window function comprises a sinusoidal function, and the ultrawideband pulse is formed via a mixer and a CMOS radio frequency switch.

摘要翻译： 通过使具有窗口功能的具有选定频率的载波信号整形来产生超宽带射频脉冲。 成形载体被选通以产生超宽带脉冲。 在另外的实施例中，窗函数包括正弦函数，并且超宽带脉冲通过混频器和CMOS射频开关形成。

公开(公告)号：US07006583B2

公开(公告)日：2006-02-28

申请号：US10231706

申请日：2002-08-30

申请人： Minnie Ho ,  Jeffrey R. Foerster

发明人： Minnie Ho ,  Jeffrey R. Foerster

IPC分类号： H04L27/06

CPC分类号： H04B1/71637 ,  H04B1/709

摘要： A receiver may receive ultra-wideband, spread-spectrum differential signals. In some embodiments, the receiver may use a variable bandwidth low pass filter. Lowering or raising the bandwidth of the low pass filter may improve performance in particular wideband signal situations.

摘要翻译： 接收机可以接收超宽带扩频差分信号。 在一些实施例中，接收机可以使用可变带宽低通滤波器。 降低或提高低通滤波器的带宽可以提高特定宽带信号情况下的性能。

公开(公告)号：US5317596A

公开(公告)日：1994-05-31

申请号：US984938

申请日：1992-12-01

申请人： Minnie Ho ,  John M. Cioffi

发明人： Minnie Ho ,  John M. Cioffi

IPC分类号： H04B3/21 ,  H04B3/23 ,  H04L27/26 ,  H03H7/30 ,  H03H7/40 ,  H03K5/159 ,  H04J1/00

CPC分类号： H04B3/23 ,  H04B3/21 ,  H04L27/2601

摘要： A method of echo cancellation in a full-duplex data communication system with discrete multitone modulation, comprised of an initial step of initializing a set of frequency-domain echo parameters and a set of corresponding time-domain echo parameters, and further including the repeating steps of block multiplying a frequency-domain transmit block of a transmitted signal by the set of frequency-domain echo parameters to produce a frequency-domain echo, converting the frequency-domain transmit block to a time-domain transmit block, subtracting the end of the previous time-domain transmit block from the end of the current time-domain transmit block, performing a convolution of the adjusted time-domain transmit block and the time-domain echo parameters to produce a time-domain echo, subtracting the time-domain echo from a time-domain receive block of a received signal, converting the resulting signal to the frequency-domain to produce a frequency-domain receive block, subtracting the frequency-domain echo from the frequency-domain receive block to produce an echo-free receive block, updating the frequency-domain echo parameters by comparing the echo-free receive block to the frequency-domain transmit block, infrequently updating the time-domain echo parameters by converting the frequency-domain echo parameters to the time-domain, and repeating the repeating steps for each block of the received signal.

摘要翻译： 一种具有离散多音调制的全双工数据通信系统中的回波消除方法，包括初始化一组频域回波参数和一组对应的时域回波参数的初始步骤，还包括重复步骤 通过频域回波参数的集合将发射信号的频域发射块相乘以产生频域回波，将频域发射块转换为时域发射块，减去 从当前时域发射块结束起的前期时域发射块，执行经调整的时域发射块和时域回波参数的卷积以产生时域回波，减去时域回波 从接收到的信号的时域接收块中，将得到的信号转换成频域以产生频域接收块，减去频率 来自频域接收块的熵域回波产生无回波接收块，通过将无回波接收块与频域发射块进行比较来更新频域回波参数，不频繁地更新时域回波 通过将频域回波参数转换为时域，并对接收到的信号的每个块重复重复步骤。

公开(公告)号：US20150089176A1

公开(公告)日：2015-03-26

申请号：US14037648

申请日：2013-09-26

申请人： Martin Junkar ,  Jun Su ,  Minnie Ho ,  Mathew Bevilacqua

发明人： Martin Junkar ,  Jun Su ,  Minnie Ho ,  Mathew Bevilacqua

IPC分类号： G06F5/10 ,  G06F12/08

CPC分类号： G06F1/3293 ,  G06F1/3206 ,  Y02D10/122

摘要： In one embodiment an controller comprises logic, at least partially including hardware logic, configured to logic, at least partially including hardware logic, configured to receive location data from a location measurement apparatus, buffer the location data in a local memory, and release the location data from the local memory to a remote processor in response to one or more trigger conditions. Other embodiments may be described.

摘要翻译： 在一个实施例中，控制器包括至少部分地包括硬件逻辑的逻辑，其被配置为至少部分地包括硬件逻辑的逻辑，其被配置为从位置测量装置接收位置数据，缓冲位置数据在本地存储器中，并释放位置 响应于一个或多个触发条件从本地存储器到远程处理器的数据。 可以描述其他实施例。

公开(公告)号：US08396147B2

公开(公告)日：2013-03-12

申请号：US12757117

申请日：2010-04-09

申请人： John S. Sadowsky ,  Minnie Ho ,  Eric A. Jacobsen ,  Alexander A. Maltsev ,  Ali S. Sadri ,  Sumeet Sandhu

发明人： John S. Sadowsky ,  Minnie Ho ,  Eric A. Jacobsen ,  Alexander A. Maltsev ,  Ali S. Sadri ,  Sumeet Sandhu

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04W16/28 ,  H04B7/0408 ,  H04L27/2602 ,  H04W74/02

摘要： A MIMO transmitter and method for transmitting a group of sequential OFDM symbols on a downlink channel using a plurality of antennas is disclosed herein. Groups of OFDM subcarriers are individually modulated in accordance with spatial-frequency subcarrier modulation assignments to generate groups of symbol-modulated subcarriers, corresponding symbol-modulated subcarriers are combined for transmission on each of a plurality of spatial channels, and beamforming is performed on the combined symbol-modulated subcarriers for transmission over the spatial channels. The channel comprises a plurality of the groups of the OFDM subcarriers and the OFDM subcarriers within each group of subcarriers and within each group of sequential OFDM symbols have the same spatial-frequency subcarrier modulation assignments. The spatial-frequency subcarrier modulation assignments for each group are determined based on feedback by a receiver, which is determined from spatial channel characteristics of the spatial channels.

摘要翻译： 这里公开了一种用于使用多个天线在下行链路信道上发送一组顺序OFDM符号的MIMO发射器和方法。 根据空间 - 频率副载波调制分配对OFDM子载波组进行单独调制，以生成符号调制子载波组，将多个空间信道中的每一个组合对应的符号调制副载波进行传输，并对组合 用于在空间信道上传输的符号调制副载波。 信道包括多个OFDM子载波组和每个子载波组内的OFDM子载波，并且在每组顺序OFDM符号内具有相同的空间频率副载波调制分配。 基于由空间信道的空间信道特性确定的接收机的反馈来确定每个组的空间频率副载波调制分配。

公开(公告)号：US07436903B2

公开(公告)日：2008-10-14

申请号：US10954734

申请日：2004-09-29

申请人： Sumeet Sandhu ,  Minnie Ho

发明人： Sumeet Sandhu ,  Minnie Ho

IPC分类号： H03C7/00

CPC分类号： H04L27/2607 ,  H04B7/0671 ,  H04L1/0625

摘要： A multicarrier transmitter may transmit cyclically delayed linear combinations of two or more data streams with three or more antennas. In some embodiments, the multicarrier transmitter may transmit cyclically delayed linear combinations of three data streams with four antennas.

摘要翻译： 多载波发射机可以用三个或更多个天线发送两个或更多个数据流的循环延迟的线性组合。 在一些实施例中，多载波发射机可以用四个天线发射三个数据流的循环延迟的线性组合。

公开(公告)号：US20050221760A1

公开(公告)日：2005-10-06

申请号：US10815171

申请日：2004-03-31

申请人： Keith Tinsley ,  Jeffery Foerster ,  Minnie Ho ,  Evan Green ,  Luiz Franca-Neto ,  Siva Narendra

发明人： Keith Tinsley ,  Jeffery Foerster ,  Minnie Ho ,  Evan Green ,  Luiz Franca-Neto ,  Siva Narendra

IPC分类号： H03D7/12 ,  H03K17/041 ,  H04B1/69 ,  H04B7/216

CPC分类号： H04B1/69 ,  H04B1/71635

摘要： An ultrawideband radio frequency pulse is generated by shaping a carrier signal having a selected frequency with a window function. The shaped carrier is gated to produce the ultrawideband pulse. In further embodiments, the window function comprises a sinusoidal function, and the ultrawideband pulse is formed via a mixer and a CMOS radio frequency switch.

摘要翻译： 通过使具有窗口功能的具有选定频率的载波信号整形来产生超宽带射频脉冲。 成形载体被选通以产生超宽带脉冲。 在另外的实施例中，窗函数包括正弦函数，并且超宽带脉冲通过混频器和CMOS射频开关形成。

公开(公告)号：US20050190739A1

公开(公告)日：2005-09-01

申请号：US11121613

申请日：2005-05-04

申请人： Carlton Sparrell ,  Roberto Aiello ,  Gerald Rogerson ,  Minnie Ho

发明人： Carlton Sparrell ,  Roberto Aiello ,  Gerald Rogerson ,  Minnie Ho

IPC分类号： H04L12/56 ,  H04B7/212

CPC分类号： H04B7/2659 ,  H04W4/18 ,  H04W24/00 ,  H04W28/22

摘要： The present invention describes a network communication system which includes a first slave transceiver configured to communicate a plurality of TDMA data packets at different data rates to a second slave transceiver. The second slave transceiver is also configured to communicate a plurality of TDMA data packets at different data rates to the first slave transceiver. A master transceiver manages data communications between the first slave transceiver and the second slave transceiver. Each transceiver includes a data modulation unit, a transmitter, an antenna, and a receiver. The transmitter is coupled to the data modulation unit and the transmitter is configured to generate a pulse stream according to the data modulation unit. The receiver is configured to detect and demodulate said ultra wide band base band signals operating at variable pulse repetition frequencies and having different modulation methods.

摘要翻译： 本发明描述了一种网络通信系统，其包括被配置为以不同的数据速率将多个TDMA数据分组传送到第二从机收发器的第一从收发机。 第二从属收发器还被配置为以不同的数据速率将多个TDMA数据分组传送到第一从机收发器。 主收发器管理第一从收发器和第二从收发器之间的数据通信。 每个收发器包括数据调制单元，发送器，天线和接收器。 发送器耦合到数据调制单元，发送器被配置为根据数据调制单元生成脉冲流。 接收机被配置为检测和解调以可变脉冲重复频率工作并具有不同调制方式的所述超宽带基带信号。

公开(公告)号：US06359923B1

公开(公告)日：2002-03-19

申请号：US08993721

申请日：1997-12-18

申请人： Brian G. Agee ,  Matthew Bromberg ,  Derek Gerlach ,  David Gibbons ,  James Timothy Golden ,  Minnie Ho ,  Elliott Hoole ,  Mary Jesse ,  Robert Lee Maxwell ,  Robert G. Mechaley, Jr. ,  Robert Ray Naish ,  David J. Nix ,  David James Ryan ,  David Stephenson

发明人： Brian G. Agee ,  Matthew Bromberg ,  Derek Gerlach ,  David Gibbons ,  James Timothy Golden ,  Minnie Ho ,  Elliott Hoole ,  Mary Jesse ,  Robert Lee Maxwell ,  Robert G. Mechaley, Jr. ,  Robert Ray Naish ,  David J. Nix ,  David James Ryan ,  David Stephenson

IPC分类号： A61F206

CPC分类号： H04B1/69 ,  H04B1/692 ,  H04B1/707 ,  H04B1/7107 ,  H04B7/04 ,  H04B2201/70702 ,  H04L5/0021 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/026 ,  H04L25/0228 ,  H04L25/03019 ,  H04L27/186 ,  H04L27/3416 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04W16/14 ,  H04W88/08

摘要： A discrete multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading involves energizing the bins of a large Fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic method may be extended to include multielement antenna array nulling methods for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective rev transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced adaptation algorithms. In a specific embodiment the spectral and spatial components of the adaptive weights are calculated in a unified operation based on the mathematical analogy between the spectral and spatial descriptions of the airlink.

摘要翻译： 离散多媒体叠层载波扩频通信方法是基于频域扩展，包括基带信号乘以叠加的或叠加的复数正弦波载波的集合。 在优选实施例中，扩展涉及激励大的快速傅立叶变换（FFT）的信息仓。 这为中等输出FFT大小节省了大量的计算复杂度。 点对多点和多点到多点（无节点）网络拓扑是可能的。 通过利用各种光源的光谱多样性，可以包括一个代码归零方法用于干扰消除和增强的信号分离。 基本方法可以扩展为包括用于干扰消除的多元天线阵列归零方法和使用空间分离的增强信号分离。 这种方法允许适应或可以适应于无线电环境的指令和逆向转发传输系统。 这样的系统与带宽按需和高阶调制格式兼容，并且使用高级适配算法。 在具体实施例中，基于空中链路的频谱和空间描述之间的数学类比，以统一的操作来计算自适应权重的频谱和空间分量。

公开(公告)号：US20150045064A1

公开(公告)日：2015-02-12

申请号：US13976237

申请日：2012-12-28

申请人： Martin Junkar ,  Jun Su ,  Minnie Ho ,  Ke Ding

发明人： Martin Junkar ,  Jun Su ,  Minnie Ho ,  Ke Ding

IPC分类号： H04W4/02

CPC分类号： H04W4/021 ,  G06Q10/0833 ,  H04L67/18 ,  H04M1/72572 ,  H04W4/023 ,  H04W64/00

摘要： In one embodiment a controller comprises logic configured to receive, in the controller, a geofencing definition and input from at least one location information device, update a location of the controller using one or more location parameters from one or more location information devices, and generate a notification signal when the location of the controller indicates that the controller has crossed a threshold. Other embodiments may be described.

摘要翻译： 在一个实施例中，控制器包括被配置为在控制器中接收来自至少一个位置信息设备的地理围栏定义和输入的逻辑，其使用来自一个或多个位置信息设备的一个或多个位置参数更新控制器的位置，并且生成 当控制器的位置指示控制器已经越过阈值时的通知信号。 可以描述其他实施例。