Radio frequency coverage map generation in wireless networks
    1.
    发明授权
    Radio frequency coverage map generation in wireless networks 有权
    无线网络中的射频覆盖图生成

    公开(公告)号:US07983667B2

    公开(公告)日:2011-07-19

    申请号:US11543747

    申请日:2006-10-05

    IPC分类号: H04W24/00 H04W40/00

    摘要: In one embodiment, a method for generating a radio-frequency coverage map. The method includes receiving coverage map data comprising a plurality of locations within a region, and an identification of a location in the plurality of locations corresponding to a radio transceiver, wherein the locations within the region are represented by at least corresponding x- and y-terms of a Cartesian coordinate system. The method further includes receiving calibration data comprising a plurality of observed signal strength values at corresponding ones of the plurality of locations, converting the x- and y-terms of the locations of the coverage map data to corresponding first and second warped coordinate terms of a warped coordinate system, and computing, using linear interpolation and the first and second warped coordinate terms, predicted received signal strength values at one or more locations in the coverage map based on the calibration data.

    摘要翻译: 在一个实施例中,一种用于产生射频覆盖图的方法。 该方法包括接收包括区域内的多个位置的覆盖地图数据以及对应于无线电收发信机的多个位置中的位置的标识,其中该区域内的位置由至少相应的x和y- 笛卡尔坐标系的项。 该方法还包括接收包括在多个位置中的相应位置处的多个观测信号强度值的校准数据,将覆盖地图数据的位置的x和y项转换成相应的第一和第二扭曲坐标项 弯曲坐标系,以及使用线性内插和第一和第二翘曲坐标项的计算,基于校准数据在覆盖图中的一个或多个位置处预测接收信号强度值。

    Radio frequency coverage map generation in wireless networks
    2.
    发明申请
    Radio frequency coverage map generation in wireless networks 有权
    无线网络中的射频覆盖图生成

    公开(公告)号:US20080085692A1

    公开(公告)日:2008-04-10

    申请号:US11543747

    申请日:2006-10-05

    IPC分类号: H04B1/18

    摘要: In one embodiment, a method for generating a radio-frequency coverage map. The method includes receiving coverage map data comprising a plurality of locations within a region, and an identification of a location in the plurality of locations corresponding to a radio transceiver, wherein the locations within the region are represented by at least corresponding x- and y-terms of a Cartesian coordinate system. The method further includes receiving calibration data comprising a plurality of observed signal strength values at corresponding ones of the plurality of locations, converting the x- and y-terms of the locations of the coverage map data to corresponding first and second warped coordinate terms of a warped coordinate system, and computing, using linear interpolation and the first and second warped coordinate terms, predicted received signal strength values at one or more locations in the coverage map based on the calibration data.

    摘要翻译: 在一个实施例中,一种用于产生射频覆盖图的方法。 该方法包括接收包括区域内的多个位置的覆盖地图数据以及对应于无线电收发信机的多个位置中的位置的标识,其中该区域内的位置由至少相应的x和y- 笛卡尔坐标系的项。 该方法还包括接收包括在多个位置中的相应位置处的多个观测信号强度值的校准数据,将覆盖地图数据的位置的x和y项转换成相应的第一和第二扭曲坐标项 弯曲坐标系,以及使用线性内插和第一和第二翘曲坐标项的计算,基于校准数据在覆盖图中的一个或多个位置处预测接收信号强度值。

    Three-Dimensional Tracking of a User Control Device in a Volume
    4.
    发明申请
    Three-Dimensional Tracking of a User Control Device in a Volume 有权
    卷中用户控制设备的三维跟踪

    公开(公告)号:US20120162214A1

    公开(公告)日:2012-06-28

    申请号:US13333299

    申请日:2011-12-21

    IPC分类号: G06T15/00

    摘要: Tracking objects presented within a stereo three-dimensional (3D) scene. The user control device may include one or more visually indicated points for at least one tracking sensor to track. The user control device may also include other position determining devices, for example, an accelerometer and/or gyroscope. Precise 3D coordinates of the stylus may be determined based on location information from the tracking sensor(s) and additional information from the other position determining devices. A stereo 3D scene may be updated to reflect the determined coordinates

    摘要翻译: 跟踪在立体三维(3D)场景中呈现的对象。 用户控制装置可以包括用于至少一个跟踪传感器跟踪的一个或多个视觉指示的点。 用户控制装置还可以包括其他位置确定装置,例如加速度计和/或陀螺仪。 可以基于来自跟踪传感器的位置信息和来自其他位置确定装置的附加信息来确定触针的精确3D坐标。 可以更新立体3D场景以反映确定的坐标