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    Systems and methods for discovering wireless display devices using inaudible audio signals
    1.
    发明授权
    Systems and methods for discovering wireless display devices using inaudible audio signals 有权
    使用无声音频信号发现无线显示设备的系统和方法

    公开(公告)号：US09513861B2

    公开(公告)日：2016-12-06

    申请号：US14128001

    申请日：2013-09-24

    申请人： Xintian E. Lin ,  Jie Gao ,  Qinghua Li ,  Narjala Bhasker

    发明人： Xintian E. Lin ,  Jie Gao ,  Qinghua Li ,  Narjala Bhasker

    IPC分类号： H04W4/00 ,  G06F3/14 ,  H04M3/56 ,  H04W12/06 ,  H04W76/02 ,  H04W4/16 ,  H04W8/00 ,  H04W4/04 ,  G06F9/44 ,  G09G5/12

    CPC分类号： G06F3/1423 ,  G06F9/452 ,  G09G5/12 ,  G09G2370/022 ,  G09G2370/16 ,  H04M3/567 ,  H04W4/04 ,  H04W4/043 ,  H04W4/16 ,  H04W4/80 ,  H04W8/005 ,  H04W12/06 ,  H04W76/14

    摘要： The present disclosure relates to computer-implemented systems and methods for wireless display discovery. The method may include receiving, by a computer, a selection to detect wireless display devices. The computer may include one or more processors, a radio transceiver, and a microphone. The method may also include identifying, by the radio transceiver, a plurality of wireless display device and transmitting, by the radio transceiver, respective connection requests to the plurality of wireless display devices. Additionally, the method may include transmitting, by the radio transceiver to the wireless display devices, respective requests for inaudible audio signal transmission. The method may also include receiving, by the microphone, a plurality of inaudible audio signals from the wireless display devices. Further still, the method may include determining, based at least in part on the plurality of inaudible audio signals, whether any of the plurality of wireless display devices are in the same room as the computer.

    摘要翻译： 本公开涉及用于无线显示发现的计算机实现的系统和方法。 该方法可以包括由计算机接收用于检测无线显示设备的选择。 计算机可以包括一个或多个处理器，无线电收发器和麦克风。 该方法还可以包括通过无线电收发器识别多个无线显示设备，并且由无线电收发器发送到多个无线显示设备的各自的连接请求。 另外，该方法可以包括通过无线电收发器向无线显示设备发送对于无声音频信号传输的相应请求。 该方法还可以包括由麦克风接收来自无线显示设备的多个听不见的音频信号。 此外，该方法可以包括至少部分地基于多个听不到的音频信号确定多个无线显示设备中的任何一个是否在与计算机相同的房间中。

    SYSTEMS AND METHODS FOR WIRELESS DISPLAY DISCOVERY
    2.
    发明申请
    SYSTEMS AND METHODS FOR WIRELESS DISPLAY DISCOVERY 有权
    无线显示发现的系统和方法

    公开(公告)号：US20150220296A1

    公开(公告)日：2015-08-06

    申请号：US14128001

    申请日：2013-09-24

    申请人： Xintian E. LIN ,  Jie GAO ,  Qinghua q LI ,  Narjala BHASKER

    发明人： Xintian E. Lin ,  Jie Gao ,  Qinghua Li ,  Narjala Bhasker

    IPC分类号： G06F3/14 ,  G06F9/44 ,  G09G5/12

    CPC分类号： G06F3/1423 ,  G06F9/452 ,  G09G5/12 ,  G09G2370/022 ,  G09G2370/16 ,  H04M3/567 ,  H04W4/04 ,  H04W4/043 ,  H04W4/16 ,  H04W4/80 ,  H04W8/005 ,  H04W12/06 ,  H04W76/14

    摘要： The present disclosure relates to computer-implemented systems and methods for wireless display discovery. The method may include receiving, by a computer, a selection to detect wireless display devices. The computer may include one or more processors, a radio transceiver, and a microphone. The method may also include identifying, by the radio transceiver, a plurality of wireless display device and transmitting, by the radio transceiver, respective connection requests to the plurality of wireless display devices. Additionally, the method may include transmitting, by the radio transceiver to the wireless display devices, respective requests for inaudible audio signal transmission. The method may also include receiving, by the microphone, a plurality of inaudible audio signals from the wireless display devices. Further still, the method may include determining, based at least in part on the plurality of inaudible audio signals, whether any of the plurality of wireless display devices are in the same room as the computer.

    摘要翻译： 本公开涉及用于无线显示发现的计算机实现的系统和方法。 该方法可以包括由计算机接收用于检测无线显示设备的选择。 计算机可以包括一个或多个处理器，无线电收发器和麦克风。 该方法还可以包括通过无线电收发器识别多个无线显示设备，并且由无线电收发器发送到多个无线显示设备的各自的连接请求。 另外，该方法可以包括通过无线电收发器向无线显示设备发送对于无声音频信号传输的相应请求。 该方法还可以包括由麦克风接收来自无线显示设备的多个听不见的音频信号。 此外，该方法可以包括至少部分地基于多个听不到的音频信号确定多个无线显示设备中的任何一个是否在与计算机相同的房间中。

    SYSTEMS, METHODS, AND DEVICES FOR EFFICIENT INDICATION OF BANDWIDTH AND STREAM ALLOCATION
    5.
    发明申请
    SYSTEMS, METHODS, AND DEVICES FOR EFFICIENT INDICATION OF BANDWIDTH AND STREAM ALLOCATION 审中-公开
    用于有效指示带宽和流分配的系统，方法和设备

    公开(公告)号：US20160100381A1

    公开(公告)日：2016-04-07

    申请号：US14582840

    申请日：2014-12-24

    申请人： Qinghua Li ,  Xiaogang Chen ,  Yuan Zhu ,  Rongzhen Yang ,  Xintian E. Lin

    发明人： Qinghua Li ,  Xiaogang Chen ,  Yuan Zhu ,  Rongzhen Yang ,  Xintian E. Lin

    IPC分类号： H04W72/04

    CPC分类号： H04L5/0044 ,  H04B7/02 ,  H04L5/0023

    摘要： Example systems, methods, and devices for efficient indication of bandwidth and stream allocation are discussed. In one embodiment, a method for indication of bandwidth allocation in a wireless network can include partitioning, by a network device, a bandwidth of a wireless signal into a plurality of subband units, assigning one or more switch bits between adjacent subband units, and allocating one or more modified subband units to one or more users of the network. In another embodiment, a method for stream allocation can include partitioning, by a network device, a spatial stream of a wireless signal into a plurality of spatial streams, assigning one or more switch bits between adjacent spatial streams, and allocating one or more modified spatial streams to one or more users of the network. Certain methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.

    摘要翻译： 讨论了用于有效指示带宽和流分配的示例系统，方法和设备。 在一个实施例中，用于在无线网络中指示带宽分配的方法可以包括由网络设备将无线信号的带宽划分成多个子带单元，在相邻子带单元之间分配一个或多个开关位，并且分配 一个或多个修改的子带单元到网络的一个或多个用户。 在另一个实施例中，用于流分配的方法可以包括由网络设备将无线信号的空间流划分成多个空间流，在相邻空间流之间分配一个或多个交换位，并且分配一个或多个修改后的空间 流到网络的一个或多个用户。 本文描述的某些方法，装置和系统可以应用于802.11ax或任何其它无线标准。

    COMMUNICATION OVERHEAD REDUCTION APPARATUS, SYSTEMS, AND METHODS
    6.
    发明申请
    COMMUNICATION OVERHEAD REDUCTION APPARATUS, SYSTEMS, AND METHODS 有权
    通信覆盖减少装置，系统和方法

    公开(公告)号：US20150195028A1

    公开(公告)日：2015-07-09

    申请号：US14602416

    申请日：2015-01-22

    申请人： Qinghua Li ,  Xintian E. Lin

    发明人： Qinghua Li ,  Xintian E. Lin

    IPC分类号： H04B7/06 ,  H04W56/00 ,  H04W52/42 ,  H04B7/04

    CPC分类号： H04B7/0684 ,  H04B7/0417 ,  H04B7/0697 ,  H04L5/0046 ,  H04W52/42 ,  H04W56/001 ,  H04W84/12 ,  H04W84/18

    摘要： An apparatus and a system, as well as a method and article, may operate to transmit a first number of training symbols corresponding to a first number of communication chains to solicit a response including a second number of training symbols corresponding to a second number of communication chains. The first and second number of communication chains may form a portion of a multiple-input, multiple-output (MIMO) system.

    摘要翻译： 装置和系统以及方法和文章可以操作以发送对应于第一数量的通信链的第一数量的训练符号以征求包括对应于第二数量的通信的第二数量的训练符号的响应 链条 第一和第二数量的通信链可以形成多输入多输出（MIMO）系统的一部分。

    DOWNLINK TRANSMIT BEAMFORMING
    7.
    发明申请
    DOWNLINK TRANSMIT BEAMFORMING 审中-公开
    下行发射波束形成

    公开(公告)号：US20140153662A1

    公开(公告)日：2014-06-05

    申请号：US14175381

    申请日：2014-02-07

    申请人： Xintian E. Lin ,  Qinghua Li

    发明人： Xintian E. Lin ,  Qinghua Li

    IPC分类号： H04L1/06 ,  H04B7/04

    CPC分类号： H04B7/0413 ,  H04B7/0617 ,  H04B7/0643 ,  H04L1/0681

    摘要： A wireless network access point can operate as a closed loop MIMO device when communicating with a station that is operating as an open loop MIMO device. Transmit/receive chains in the access point are calibrated to support aggregate channel reciprocity.

    摘要翻译： 当与作为开环MIMO设备操作的站通信时，无线网络接入点可以作为闭环MIMO设备操作。 校准接入点中的发送/接收链以支持聚合信道互易。

    Recursive reduction of channel state feedback
    8.
    发明授权
    Recursive reduction of channel state feedback 有权
    通道状态反馈递归减少

    公开(公告)号：US08743857B2

    公开(公告)日：2014-06-03

    申请号：US13532969

    申请日：2012-06-26

    申请人： Qinghua Li ,  Xintian E. Lin

    发明人： Qinghua Li ,  Xintian E. Lin

    IPC分类号： H04B7/216 ,  H04B7/06 ,  H04B7/04

    CPC分类号： H04B7/0663 ,  H04B7/0417 ,  H04B7/0639

    摘要： A method and a system that multiplies a beamforming matrix by a unitary matrix that does not change the subspace of the beamforming matrix for form a converted matrix having a lower left triangle of zeros. A first column vector having a fewest number of elements of the converted matrix is quantized using a codebook and represented by a first codebook index. A Householder matrix is determined from the quantized first column vector and the converted matrix is multiplied by the Householder matrix. Quantizing, determining a Householder matrix from further column vectors of the converted matrix using a codebook and representing each respective column vector by further corresponding codebook index, and multiplying the converted matrix on the left by the determined Householder matrix for each respective column vector are recursively repeated. The first codebook index and further codebook indices are transmitted to a remote station for use in beamforming.

    摘要翻译： 一种方法和系统，其将波束形成矩阵乘以不改变波束形成矩阵的子空间的单一矩阵，以形成具有零的左下三角形的转换矩阵。 具有转换矩阵的元素数目最少的第一列矢量使用码本量化，并由第一码本索引表示。 从量化的第一列向量确定一个Householder矩阵，并将该矩阵乘以Householder矩阵。 使用码本从转换矩阵的其他列向量中量化，确定房主矩阵，并通过进一步的相应码本索引表示每个相应的列向量，并且将每个相应列向量的左侧的转换矩阵乘以所确定的Householder矩阵递归地重复 。 第一码本索引和其他码本索引被发送到远程站以用于波束成形。

    Retransmission techniques in wireless networks
    9.
    发明授权
    Retransmission techniques in wireless networks 有权
    无线网络中的重传技术

    公开(公告)号：US08650448B2

    公开(公告)日：2014-02-11

    申请号：US12587842

    申请日：2009-10-13

    申请人： Qinghua Li ,  Ozgur Oyman ,  Xintian E. Lin

    发明人： Qinghua Li ,  Ozgur Oyman ,  Xintian E. Lin

    IPC分类号： G08C25/02

    CPC分类号： H04L1/0015 ,  H04L1/0026 ,  H04L1/1864

    摘要： Retransmission techniques are disclosed. These techniques may be used in networks employing contention-based access schemes, such as CSMA. For instance, a device may receive a corrupted packet from a transmitting device, and determine a cause of the corruption. When the determined cause of the corruption is an in-network packet collision, the device allows the transmitting device to send a retransmission of the packet in accordance with a contention-based access scheme. However, when the determined cause of the corruption is other than an in-network packet collision, the device provides retransmission assistance to the transmitting device. This retransmission assistance may include a channel reservation for a retransmission, and/or one or more link adaptation suggestions for the transmitting device.

    摘要翻译： 披露重传技术。 这些技术可以用于采用基于争用的接入方案的网络，例如CSMA。 例如，设备可以从发送设备接收损坏的分组，并且确定损坏的原因。 当所确定的损坏的原因是网络内分组冲突时，设备允许发送设备根据基于竞争的接入方案发送分组的重传。 然而，当所确定的损坏的原因不是网内分组冲突时，设备向发送设备提供重传协助。 该重传辅助可以包括用于重发的信道预留和/或用于发送设备的一个或多个链路适配建议。