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27 条记录 (耗时 0.029 秒)

    Wireless Communication Using Beam Forming And Diversity
    1.
    发明申请
    Wireless Communication Using Beam Forming And Diversity 有权
    无线通信使用波束形成和多样性

    公开(公告)号：US20120170685A1

    公开(公告)日：2012-07-05

    申请号：US13416877

    申请日：2012-03-09

    申请人： James Cho ,  Paul J. Husted

    发明人： James Cho ,  Paul J. Husted

    IPC分类号： H04L27/06 ,  H04B1/02

    CPC分类号： H04B7/086 ,  H04B7/0617 ,  H04B7/0814 ,  H04W24/00

    摘要： A method and apparatus for wirelessly transmitting real-time data streams is described. To ensure continuous data flow, fast diversity and slow diversity can be used. Fast diversity chooses a receive antenna based on received signal parameters, such as signal strength, during the transmission header and prior to information transfer. Slow diversity stores received signal parameters from previous packets, associates the parameters with a selected antenna, and uses the parameter history to denote a “default” antenna. Additionally, receive and/or transmit beam forming can be used to maintain continuous communication between stations. Beam forming, which combines antenna signals to maximize performance, is possible when at least two transmit/receive signal processing chains are available.

    摘要翻译： 描述了一种无线传输实时数据流的方法和装置。 为了确保连续的数据流，可以使用快速的分集和缓慢的分集。 快速分集基于接收到的信号参数（例如信号强度）在传输报头期间以及信息传输之前选择接收天线。 慢分集存储来自先前分组的接收信号参数，将参数与选定天线相关联，并使用参数历史来表示“默认”天线。 此外，可以使用接收和/或发射波束形成来维持站点之间的连续通信。 当至少两个发送/接收信号处理链可用时，可以组合天线信号以最大化性能的波束形成。

    Media streaming synchronization
    2.
    发明授权
    Media streaming synchronization 有权
    媒体流同步

    公开(公告)号：US07792158B1

    公开(公告)日：2010-09-07

    申请号：US11197773

    申请日：2005-08-03

    申请人： James Cho ,  William J. McFarland ,  Ning Zhang

    发明人： James Cho ,  William J. McFarland ,  Ning Zhang

    IPC分类号： H04J3/06

    CPC分类号： H04W56/001 ,  H04J3/0661 ,  H04J3/0664 ,  H04J3/067 ,  H04N21/4305 ,  H04N21/43615 ,  H04N21/43637

    摘要： A system and method for closely synchronizing the transmission of real-time data streams is described. Synchronization data is transmitted by a cycle master for receipt by one or more cycle slaves. A cycle slave updates an internal state based on synchronization data received from the cycle master. This internal state may govern reproduction of received real-time data streams by the cycle slave. Such synchronization data may be inserted into transmitted media streams. The cycle slave internal state may be more accurately set by calculating timing differences between the cycle master and cycle slave and periodically adjusting that internal state between receipt of the synchronization data from the cycle master.

    摘要翻译： 描述了用于紧密同步实时数据流的传输的系统和方法。 同步数据由循环主站传送，以便由一个或多个循环从站接收。 循环从站根据从循环主站接收的同步数据更新内部状态。 该内部状态可以管理由循环从站接收的实时数据流的再现。 这样的同步数据可以被插入到所传送的媒体流中。 循环从站内部状态可以通过计算循环主站和从站从站之间的定时差异并周期性地调整从循环主站接收到同步数据之间的内部状态来更精确地设置。

    Wireless Communication Using Beam Forming And Diversity
    3.
    发明申请
    Wireless Communication Using Beam Forming And Diversity 有权
    无线通信使用波束形成和多样性

    公开(公告)号：US20090175383A1

    公开(公告)日：2009-07-09

    申请号：US12404571

    申请日：2009-03-16

    申请人： James Cho ,  Paul J. Husted

    发明人： James Cho ,  Paul J. Husted

    IPC分类号： H04L27/00 ,  H04B7/02 ,  H04B7/00

    CPC分类号： H04B7/086 ,  H04B7/0617 ,  H04B7/0814 ,  H04W24/00

    摘要： A method and apparatus for wirelessly transmitting real-time data streams is described. To ensure continuous data flow, fast diversity and slow diversity can be used. Fast diversity chooses a receive antenna based on received signal parameters, such as signal strength, during the transmission header and prior to information transfer. Slow diversity stores received signal parameters from previous packets, associates the parameters with a selected antenna, and uses the parameter history to denote a “default” antenna. Additionally, receive and/or transmit beam forming can be used to maintain continuous communication between stations. Beam forming, which combines antenna signals to maximize performance, is possible when at least two transmit/receive signal processing chains are available.

    摘要翻译： 描述了一种无线传输实时数据流的方法和装置。 为了确保连续的数据流，可以使用快速的分集和缓慢的分集。 快速分集基于接收到的信号参数（例如信号强度）在传输报头期间以及信息传输之前选择接收天线。 慢分集存储来自先前分组的接收信号参数，将参数与选定天线相关联，并使用参数历史来表示“默认”天线。 此外，可以使用接收和/或发射波束形成来维持站点之间的连续通信。 当至少两个发送/接收信号处理链可用时，可以组合天线信号以最大化性能的波束形成。

    Media streaming synchronization
    4.
    发明授权
    Media streaming synchronization 有权
    媒体流同步

    公开(公告)号：US09548832B1

    公开(公告)日：2017-01-17

    申请号：US12820058

    申请日：2010-06-21

    申请人： James Cho ,  William J. McFarland ,  Ning Zhang

    发明人： James Cho ,  William J. McFarland ,  Ning Zhang

    IPC分类号： H04J3/06 ,  H04N21/43 ,  H04N21/4363

    CPC分类号： H04W56/001 ,  H04J3/0661 ,  H04J3/0664 ,  H04J3/067 ,  H04N21/4305 ,  H04N21/43615 ,  H04N21/43637

    摘要： A system and method for closely synchronizing the transmission of real-time data streams is described. Synchronization data is transmitted by a cycle master for receipt by one or more cycle slaves. A cycle slave updates an internal state based on synchronization data received from the cycle master. This internal state may govern reproduction of received real-time data streams by the cycle slave. Such synchronization data may be inserted into transmitted media streams. The cycle slave internal state may be more accurately set by calculating timing differences between the cycle master and cycle slave and periodically adjusting that internal state between receipt of the synchronization data from the cycle master.

    摘要翻译： 描述了用于紧密同步实时数据流的传输的系统和方法。 同步数据由循环主站传送，以便由一个或多个循环从站接收。 循环从站根据从循环主站接收的同步数据更新内部状态。 该内部状态可以管理由循环从站接收的实时数据流的再现。 这样的同步数据可以被插入到所传送的媒体流中。 循环从站内部状态可以通过计算循环主站和从站从站之间的定时差异并周期性地调整从循环主站接收到同步数据之间的内部状态来更精确地设置。

    Content optimization of a physical layer preamble
    5.
    发明授权
    Content optimization of a physical layer preamble 有权
    物理层前导码的内容优化

    公开(公告)号：US08867563B1

    公开(公告)日：2014-10-21

    申请号：US12869563

    申请日：2010-08-26

    申请人： James Cho

    发明人： James Cho

    IPC分类号： H04L12/28

    CPC分类号： H04W28/065 ,  H04W28/06 ,  H04W80/00 ,  H04W84/12

    摘要： Embodiments of the present invention provide for content optimization of a physical layer preamble. In one embodiment of the invention, a method for encapsulating a payload for transmission through a network is disclosed. The method comprises the step of programming a legacy physical layer length value in a legacy physical layer preamble. The legacy physical layer preamble is configured such that it can be received by any legacy stations that may be on the network, and such that a separate physical layer length value can be derived from the legacy physical layer preamble. Using such a system, content optimization of a physical layer preamble is provided.

    摘要翻译： 本发明的实施例提供了物理层前导码的内容优化。 在本发明的一个实施例中，公开了一种用于封装通过网络进行传输的净荷的方法。 该方法包括在传统物理层前同步码中编程传统物理层长度值的步骤。 传统物理层前导码被配置为使得其可以由可能在网络上的任何传统站点接收，并且使得可以从传统物理层前导码导出单独的物理层长度值。 使用这样的系统，提供物理层前导码的内容优化。

    Selecting frequency bands for transmitting data packets
    10.
    发明授权
    Selecting frequency bands for transmitting data packets 有权
    选择发送数据包的频带

    公开(公告)号：US09247541B2

    公开(公告)日：2016-01-26

    申请号：US13233861

    申请日：2011-09-15

    申请人： Youhan Kim ,  James Cho ,  Kai Shi ,  Ning Zhang

    发明人： Youhan Kim ,  James Cho ,  Kai Shi ,  Ning Zhang

    IPC分类号： H04B7/00 ,  H04W72/04 ,  H04L1/06 ,  H04L5/00

    CPC分类号： H04W72/0453 ,  H04L1/0643 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053

    摘要： A first combination of frequency bands is selected for transmitting a first data packet, and a second, different combination of frequency bands is selected for transmitting a second data packet. A data stream is divided into a first set of data and a second set of data. The first set of data is allocated to the first combination of frequency bands, and the second set of data is allocated to the second combination of frequency bands.

    摘要翻译： 选择频带的第一组合用于发送第一数据分组，并且选择频带的第二不同组合来发送第二数据分组。 数据流被分成第一组数据和第二组数据。 第一组数据被分配给频带的第一组合，并且第二组数据被分配给频带的第二组合。