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1.发明申请公开(公告)号：US20140214357A1
公开(公告)日：2014-07-31
申请号：US14230677
申请日：2014-03-31
申请人： Blackberry Limited
CPC分类号： G01B21/16 , G01C19/00 , G06F3/017 , G06F3/0346 , G06F15/00
摘要： According to one aspect, a method of determining an attitude matrix on a portable electronic device. The method includes determining a first attitude matrix gradient using data from at least one of an accelerometer and a magnetometer, determining a second attitude matrix gradient using data from a gyroscope, fusing the first attitude matrix gradient and the second attitude matrix gradient based on a mixing coefficient to generate a fused gradient, and based on the fused gradient, updating a fine attitude matrix for the portable electronic device.
摘要翻译： 根据一个方面，一种确定便携式电子设备上的姿态矩阵的方法。 该方法包括：使用来自加速度计和磁力计中的至少一个的数据确定第一姿势矩阵梯度，使用来自陀螺仪的数据确定第二姿态矩阵梯度，将第一姿势矩阵梯度和第二姿态矩阵梯度融合，基于混合 系数以产生融合梯度，并且基于融合梯度，更新便携式电子设备的精细姿态矩阵。
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2.发明授权System and method for improving location estimates of co-located sectored cell sites for location services 有权用于改善位置服务的同位置分区小区的位置估计的系统和方法公开(公告)号：US09271119B2
公开(公告)日：2016-02-23
申请号：US14500116
申请日：2014-09-29
申请人： BLACKBERRY LIMITED
摘要： Improved location estimates for transceivers is described. The location estimate of transceivers can be improved for sector transceivers that are co-located at a sectored cell site. The location estimate for each individual co-located sector transceiver can be updated as a centroid of all of the co-located sector transceivers. The location information of the transceivers can be used to provide network location estimation to mobile devices which do not have accurate positioning estimates.
摘要翻译： 描述了改善收发器的位置估计。 可以改善收发器的位置估计，用于共同位于分区小区站点的扇区收发器。 每个单独的同位置扇区收发器的位置估计可以被更新为所有同位置扇区收发器的质心。 收发器的位置信息可以用于向没有准确定位估计的移动设备提供网络位置估计。
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3.发明授权公开(公告)号：US09157736B2
公开(公告)日：2015-10-13
申请号：US14230677
申请日：2014-03-31
申请人： BlackBerry Limited
CPC分类号： G01B21/16 , G01C19/00 , G06F3/017 , G06F3/0346 , G06F15/00
摘要： According to one aspect, a method of determining an attitude matrix on a portable electronic device. The method includes determining a first attitude matrix gradient using data from at least one of an accelerometer and a magnetometer, determining a second attitude matrix gradient using data from a gyroscope, fusing the first attitude matrix gradient and the second attitude matrix gradient based on a mixing coefficient to generate a fused gradient, and based on the fused gradient, updating a fine attitude matrix for the portable electronic device.
摘要翻译： 根据一个方面，一种确定便携式电子设备上的姿态矩阵的方法。 该方法包括：使用来自加速度计和磁力计中的至少一个的数据确定第一姿势矩阵梯度，使用来自陀螺仪的数据确定第二姿态矩阵梯度，将第一姿势矩阵梯度和第二姿态矩阵梯度融合，基于混合 系数以产生融合梯度，并且基于融合梯度，更新便携式电子设备的精细姿态矩阵。
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公开(公告)号：US08908978B2
公开(公告)日：2014-12-09
申请号：US14298285
申请日：2014-06-06
申请人： BlackBerry Limited
CPC分类号： G06T9/00 , H03M7/3062 , H04L27/0006
摘要： A system and method for generating an m-dimensional signature vector in a computing device is provided. The signature vector may be generated from a plurality of key-value pairs, each comprising a unique identifier and an associated non-zero value. Each element of the m-dimensional signature vector is calculated based on a summation of a plurality of terms. Each of the terms is calculated from a respective key-value pair by generating a seed based on the key of the respective key-value pair and an element identifier associated with the vector element being calculated; generating a pseudo-random number from the generated seed; and multiplying the pseudo-random number by the value of the respective key-value pair, wherein m
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