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    Packet detection in the presence of platform noise in a wireless network
    3.
    发明授权
    Packet detection in the presence of platform noise in a wireless network 失效
    在无线网络中存在平台噪声的数据包检测

    公开(公告)号：US07636404B2

    公开(公告)日：2009-12-22

    申请号：US11322829

    申请日：2005-12-30

    申请人： Yongfang Guo ,  Xintian E. Lin ,  Qinghua Li ,  Stanley K Ling ,  Jorge Myszne ,  David Carasso

    发明人： Yongfang Guo ,  Xintian E. Lin ,  Qinghua Li ,  Stanley K Ling ,  Jorge Myszne ,  David Carasso

    IPC分类号： H03D1/00

    CPC分类号： H04L27/0014 ,  H04L7/042 ,  H04L2027/003

    摘要： Techniques are presented for improving packet detection within a wireless device in the presence of platform noise. In some embodiments, packet detection is carried out by first performing a correlation operation using a signal at an input of a wireless receiver. The result of the correlation may then be compared to a threshold value in order to make a packet arrival decision. The threshold value may be varied during device operation in a manner that enhances packet detection performance.

    摘要翻译： 提出了在存在平台噪声的情况下改进无线设备内的分组检测的技术。 在一些实施例中，通过首先使用无线接收机的输入端的信号执行相关操作来执行分组检​​测。 然后可以将相关的结果与阈值进行比较，以便使分组到达确定。 阈值可以在设备操作期间以增强分组检测性能的方式改变。

    Mitigation of interference from periodic noise
    4.
    发明申请
    Mitigation of interference from periodic noise 失效
    减轻周期性噪声的干扰

    公开(公告)号：US20070297521A1

    公开(公告)日：2007-12-27

    申请号：US11476365

    申请日：2006-06-27

    申请人： Yongfang Guo ,  Xintian E. Lin ,  Qinghua Li

    发明人： Yongfang Guo ,  Xintian E. Lin ,  Qinghua Li

    IPC分类号： H04K1/10

    CPC分类号： H04L27/2657 ,  H04B15/04 ,  H04L25/0212 ,  H04L25/025 ,  H04L27/2662

    摘要： A method and apparatus for mitigation of interference from periodic noise. An embodiment of a method includes receiving wireless signal data, where the data includes a periodic noise that varies in frequency over time. The method further includes performing a time-spectrum characterization of the data, and correlating the time-spectrum characterization of the data to determine a period of the periodic noise. The noise is dynamically weighted based at least in part on frequency variation of the noise.

    摘要翻译： 一种缓解周期噪声干扰的方法和装置。 方法的实施例包括接收无线信号数据，其中数据包括频率随时间变化的周期性噪声。 该方法还包括执行数据的时间谱表征，以及将数据的时间谱表征相关联以确定周期性噪声的周期。 噪声至少部分地基于噪声的频率变化来动态加权。

    Mitigation of interference from periodic noise
    5.
    发明授权
    Mitigation of interference from periodic noise 失效
    减轻周期性噪声的干扰

    公开(公告)号：US07672407B2

    公开(公告)日：2010-03-02

    申请号：US11476365

    申请日：2006-06-27

    申请人： Yongfang Guo ,  Xintian E. Lin ,  Qinghua Li

    发明人： Yongfang Guo ,  Xintian E. Lin ,  Qinghua Li

    IPC分类号： H03D1/04

    CPC分类号： H04L27/2657 ,  H04B15/04 ,  H04L25/0212 ,  H04L25/025 ,  H04L27/2662

    摘要： A method and apparatus for mitigation of interference from periodic noise. An embodiment of a method includes receiving wireless signal data, where the data includes a periodic noise that varies in frequency over time. The method further includes performing a time-spectrum characterization of the data, and correlating the time-spectrum characterization of the data to determine a period of the periodic noise. The noise is dynamically weighted based at least in part on frequency variation of the noise.

    摘要翻译： 一种缓解周期噪声干扰的方法和装置。 方法的实施例包括接收无线信号数据，其中数据包括频率随时间变化的周期性噪声。 该方法还包括执行数据的时间谱表征，以及将数据的时间谱表征相关联以确定周期性噪声的周期。 噪声至少部分地基于噪声的频率变化来动态加权。

    PRESENCE SENSOR WITH ULTRASOUND AND RADIO
    8.
    发明申请
    PRESENCE SENSOR WITH ULTRASOUND AND RADIO 审中-公开
    存在超声波和无线电的传感器

    公开(公告)号：US20130163453A1

    公开(公告)日：2013-06-27

    申请号：US13338041

    申请日：2011-12-27

    申请人： Xintian E. Lin ,  Qinghua Li ,  Yongfa Zhou ,  Songnan Yang ,  Xianchao Xu

    发明人： Xintian E. Lin ,  Qinghua Li ,  Yongfa Zhou ,  Songnan Yang ,  Xianchao Xu

    IPC分类号： H04L12/26

    CPC分类号： G01S1/72 ,  G01S11/14 ,  H04W56/0015 ,  H04W64/00

    摘要： An ultrasound and radio frequency technology is used to implement presence sensor capability for wireless devices such as, a laptap device. For example, the laptap device connects to a station device through a WiFi signal. In this example, the WiFi signal may include a data packet that synchronizes internal clocks of the laptap device with the station device. Further, the data packet may include transmitting time information for an ultrasound audio signal generated by the station device. The ultrasound audio signal is received by the laptap device that calculates time of flight (TOF) of the ultrasound audio signal. The TOF may be used to determine actual distance of the wireless device (e.g., laptap device) to the station device.

    摘要翻译： 使用超声波和射频技术来实现诸如laptap设备之类的无线设备的存在传感器能力。 例如，笔记本设备通过WiFi信号连接到站设备。 在该示例中，WiFi信号可以包括数据分组，该数据分组使该分路器装置的内部时钟与站装置同步。 此外，数据分组可以包括发送由站设备生成的超声音频信号的时间信息。 超声波音频信号由计算出超声音频信号的飞行时间（TOF）的笔记本装置接收。 可以使用TOF来确定无线设备（例如，laptap设备）到站设备的实际距离。

    Systems and methods for discovering wireless display devices using inaudible audio signals
    9.
    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
    10.
    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。