利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

78 条记录 (耗时 0.029 秒)

    Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
    31.
    发明申请
    Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification 审中-公开

    公开(公告)号：US20050025223A1

    公开(公告)日：2005-02-03

    申请号：US10919469

    申请日：2004-08-16

    申请人： Anand Dabak ,  Eko Onggosanusi

    发明人： Anand Dabak ,  Eko Onggosanusi

    IPC分类号： H04B7/06 ,  H04B7/08 ,  H04B17/00 ,  H04B7/212 ,  H04B1/707

    CPC分类号： H04B7/0615 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0645 ,  H04B7/0654 ,  H04B7/0857 ,  H04B17/104 ,  H04B17/24

    摘要： A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (α2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.

    Frequency-domain subchannel transmit antenna selection and power pouring for multi-antenna transmission
    32.
    发明授权
    Frequency-domain subchannel transmit antenna selection and power pouring for multi-antenna transmission 有权
    用于多天线传输的频域子信道发射天线选择和电力倾倒

    公开(公告)号：US08040986B2

    公开(公告)日：2011-10-18

    申请号：US10723215

    申请日：2003-11-26

    申请人： Michael O. Polley ,  Donald P. Shaver ,  Srinath Hosur ,  Eko Onggosanusi ,  Muhammad Z. Ikram ,  Anand Dabak

    发明人： Michael O. Polley ,  Donald P. Shaver ,  Srinath Hosur ,  Eko Onggosanusi ,  Muhammad Z. Ikram ,  Anand Dabak

    IPC分类号： H04B7/10 ,  H04L1/02

    CPC分类号： H04W52/42

    摘要： A system comprises a wireless device that communicates across a spectrum having a plurality of sub-channels. The wireless device comprises a plurality of antennas through which the wireless device communicates with another wireless device, wherein each antenna communicates with the other wireless device via an associated communication pathway. The wireless device further comprises sub-channel power analysis logic coupled to the antennas and adapted to determine which communication pathway has the highest communication quality on a sub-channel by sub-channel basis. The wireless device still further comprises diversity selection logic coupled to the sub-channel power analysis logic and adapted to determine a weighting vector for an associated antenna based on the communication quality, wherein the weighting vector specifies a relative transmission power for each sub-channel for the associated antenna.

    摘要翻译： 系统包括在具有多个子信道的频谱上进行通信的无线设备。 无线设备包括多个天线，无线设备通过该天线与另一无线设备通信，其中每个天线经由相关联的通信路径与另一无线设备通信。 无线设备还包括耦合到天线的子信道功率分析逻辑，并且适于通过子信道来确定子信道上哪个通信路径具有最高通信质量。 无线设备还包括耦合到子信道功率分析逻辑的分集选择逻辑，并且适于基于通信质量来确定相关天线的加权向量，其中加权向量规定每个子信道的相对发射功率，用于 相关天线。

    Satellite positioning system receiver utilizing broadcast doppler information
    33.
    发明授权
    Satellite positioning system receiver utilizing broadcast doppler information 有权
    卫星定位系统接收机利用广播多普勒信息

    公开(公告)号：US07941164B2

    公开(公告)日：2011-05-10

    申请号：US11069595

    申请日：2005-02-28

    申请人： Eko Onggosanusi ,  Anand Dabak

    发明人： Eko Onggosanusi ,  Anand Dabak

    IPC分类号： H04Q7/20

    CPC分类号： G01S19/254

    摘要： A cellular communicating device (10). The device comprises means (221) for communicating bi-directional data to and from a cellular transceiver station along a bi -directional channel (30S). The device also comprises means (222) for receiving SPS information. The device also comprises means (223) for receiving broadcast Doppler information from a source other than the bi-directional channel and an SPS system. Lastly, the device also comprises means (24) for determining a location fix of the electronic device in response to the SPS information and the broadcast Doppler information.

    摘要翻译： 一种蜂窝通信设备（10）。 该设备包括用于沿双向信道（30S）向蜂窝收发器站和从蜂窝收发器站向双向数据传送双向数据的装置（221）。 该装置还包括用于接收SPS信息的装置（222）。 该设备还包括用于从除双向通道之外的源和SPS系统接收广播多普勒信息的装置（223）。 最后，设备还包括用于响应于SPS信息和广播多普勒信息来确定电子设备的定位的装置（24）。

    Beam Forming for Transmit Using Bluetooth Modified Hopping Sequences (BFTBMH)
    36.
    发明申请
    Beam Forming for Transmit Using Bluetooth Modified Hopping Sequences (BFTBMH) 有权
    使用蓝牙修改跳跃序列（BFTBMH）发送的波束形成

    公开(公告)号：US20060280143A1

    公开(公告)日：2006-12-14

    申请号：US11466270

    申请日：2006-08-22

    申请人： Anand Dabak ,  Mohammed Nafie ,  Timothy Schmidl ,  Alan Gatherer

    发明人： Anand Dabak ,  Mohammed Nafie ,  Timothy Schmidl ,  Alan Gatherer

    IPC分类号： H04Q7/00 ,  H04L12/56

    CPC分类号： H01Q3/22 ,  H01Q1/2291 ,  H04B1/713 ,  H04B7/0615 ,  H04B7/0697 ,  H04B7/0848 ,  H04W84/18

    摘要： A communication circuit (28) is designed with a signal processing circuit (370) arranged to produce a first plurality of data signals and receive a second plurality of data signals. A transmit circuit (364) is coupled to receive the first plurality of data signals and transmit each data signal of the first plurality of data signals on a respective transmit frequency in a predetermined sequence of transmit frequencies. A receive circuit (362) is coupled to receive each data signal of the second plurality of data signals from a remote transmitter on the respective transmit frequency in the predetermined sequence. The receive circuit applies the second plurality of data signals to the signal processing circuit.

    摘要翻译： 通信电路（28）被设计成具有被配置为产生第一多个数据信号并接收第二多个数据信号的信号处理电路（370）。 发射电路（364）被耦合以接收第一多个数据信号，并且以预定的发射频率的顺序在相应的发射频率上发射第一多个数据信号的每个数据信号。 接收电路（362）被耦合以便以预定顺序在相应发射频率上从远程发射机接收第二多个数据信号的每个数据信号。 接收电路将第二多个数据信号施加到信号处理电路。

    Multi-mode radio piconet/scatternet
    37.
    发明申请
    Multi-mode radio piconet/scatternet 有权
    多模式收音机微微网/散网

    公开(公告)号：US20050181725A1

    公开(公告)日：2005-08-18

    申请号：US09942192

    申请日：2001-08-29

    申请人： Anand Dabak ,  Timothy Schmidl ,  Mohammed Nafie

    发明人： Anand Dabak ,  Timothy Schmidl ,  Mohammed Nafie

    IPC分类号： H04B7/00 ,  H04L12/56

    CPC分类号： H04W92/02 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

    摘要： A communication system 100 allows for heterogeneous piconets/scattenets 100 where in multiple modes 110, 112 of transmission, one of Bluetooth 110 and one or more other modes of transmission 112 are possible. While at the same time maintaining synchronization between all the different modes of transmission 110, 112 in a given piconet and across a scatternet 100. This allows for a communication device that can communicate using a plurality of transmission modes depending on the communication needs of the device.

    摘要翻译： 通信系统100允许异构微微网/散射100，其中在多模式110,112的传输，蓝牙110和一个或多个其它传输模式112之一是可能的。 而同时保持给定微微网中并且跨越散点网100的所有不同传输模式110,112之间的同步。 这允许根据设备的通信需要使用多个传输模式进行通信的通信设备。

    Data signal demodulation in a communication system
    38.
    发明授权
    Data signal demodulation in a communication system 有权
    通信系统中的数据信号解调

    公开(公告)号：US07369523B2

    公开(公告)日：2008-05-06

    申请号：US10370991

    申请日：2003-02-20

    申请人： Aris Papasakellariou ,  Timothy Schmidl ,  Anand Dabak

    发明人： Aris Papasakellariou ,  Timothy Schmidl ,  Anand Dabak

    IPC分类号： H04B7/216 ,  H04B7/24 ,  H04B17/00 ,  H04Q7/00

    CPC分类号： H04B1/7107 ,  H04B1/7115 ,  H04B7/216

    摘要： A method described evaluates the pilot-to-data power ratio based on the values of the demodulated data at the output of a receiver such as a conventional maximal ratio combiner or an equalizer receiver. Since the data are not scaled to their particular decision grid, their distribution and statistics deviate from the ones defined by the known decision grid. Measuring these deviations of the statistics, the pilot-to-data power ratio and the appropriate demodulated data scaling can be accurately determined. Subsequent data processing may then commence.

    摘要翻译： 所描述的方法基于诸如常规最大比组合器或均衡器接收器的接收器的输出处的解调数据的值来评估导频到数据功率比。 由于数据没有缩放到其特定的决策网格，它们的分布和统计数据与已知决策网格定义的数据不符。 测量统计的这些偏差，可以准确地确定导频到数据功率比和适当的解调数据缩放。 随后的数据处理可以开始。

    INTERFERENCE CANCELLATION OF A NARROW BANK INTERFERER IN A WIDE BAND COMMUNICATION DEVICE
    39.
    发明申请
    INTERFERENCE CANCELLATION OF A NARROW BANK INTERFERER IN A WIDE BAND COMMUNICATION DEVICE 审中-公开
    宽带通信设备中的窄带干扰器的干扰消除

    公开(公告)号：US20060215795A1

    公开(公告)日：2006-09-28

    申请号：US11382580

    申请日：2006-05-10

    申请人： Mohammed Nafie ,  Timothy Schmidl ,  Anand Dabak

    发明人： Mohammed Nafie ,  Timothy Schmidl ,  Anand Dabak

    IPC分类号： H03D1/04

    CPC分类号： H04B1/715 ,  H04B1/1036 ,  H04B2001/7152 ,  H04B2001/7154

    摘要： Interference cancellation/suppression by a wide band radio (100) includes the steps of searching for all narrow band interferer signals such as Bluetooth signals (502). Communicating with the detected Bluetooth piconets (504). Estimating when the Bluetooth signals will occur (506) using the information received during step (504) . And using a suppression technique in association with the estimations as to when/where the interfering signals will occur in order to counter the interfering signal(s). In an alternate embodiment, both the narrow band (304) and wide band (302) signals are stored (306). Then the one or more narrow band Bluetooth signal(s) (304) and decoded (308) and subtracted (308) from the wide band packet prior to it being decoded (312).

    摘要翻译： 通过宽带无线电（100）的干扰消除/抑制包括搜索诸如蓝牙信号（502）的所有窄带干扰信号的步骤。 与检测到的蓝牙微微网（504）进行通信。 使用在步骤（504）期间接收到的信息来估计何时发生蓝牙信号（506）。 并且使用抑制技术与关于何时/何处发生干扰信号以估计干扰信号的估计相关联。 在替代实施例中，窄带（304）和宽带（302）信号都被存储（306）。 然后，一个或多个窄带蓝牙信号（304）和解码（308）并在其被解码之前从宽带分组中减去（308）（312）。