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公开(公告)号：US10670402B2
公开(公告)日：2020-06-02
申请号：US14530494
申请日：2014-10-31
发明人： Bashir Kazemipur , Amr Al-Hamad , Jacques Georgy , Zainab Syed , Christopher Goodall , Naser El-Sheimy
摘要： Systems and methods are disclosed for determining a navigational constraint for a portable device using an optical sensor. The navigational constraint may be used to supplement other navigational solutions or may be used independently. The optical sensor may capture a plurality of samples to be processed to determine the constraint. Determining the constraint may include any or all of determining a context for usage, distinguishing usage modes, estimating an orientation of the portable device, determining an absolute and/or relative elevation, determining a direction of motion and determining a speed of the portable device from the samples.
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公开(公告)号：US09961506B2
公开(公告)日：2018-05-01
申请号：US14282589
申请日：2014-05-20
发明人： Ardalan Heshmati , Rahul Bakshi
摘要： Systems and methods are disclosed for refining a coarse location determination by detecting patterns of motion sensor data that may be associated with predetermined locations. One or more geofeatures may be identified that cause a mobile device associated with a user to detect a distinguishable pattern of sensor data when the user interacts with the object. Accordingly, a coarse location may be refined using information associated with the geofeature, such as the location of the geofeature.
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公开(公告)号：US20170343353A1
公开(公告)日：2017-11-30
申请号：US15429475
申请日：2017-02-10
发明人： Anas Mahmoud , Hussein Sahli , Da Wang , Jacques Georgy
CPC分类号： G01C21/16 , G01C21/206 , G06Q20/20 , G06Q20/202 , G06Q30/0635 , G06Q30/0639 , H04L67/18
摘要： Anchor points associated with point of sale information may be ordered by segmenting a trajectory derived from sensor data defined by adjacent turns to generate candidate links for each segment from which possible paths for the trajectory are derived. Each derived possible path may be scored with a multi-objective function using a global optimization algorithm to select a solution path from the derived possible paths that may be used to order a plurality of anchor points.
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公开(公告)号：US20160077166A1
公开(公告)日：2016-03-17
申请号：US14485248
申请日：2014-09-12
发明人： Alexey Morozov , Shang-Hung Lin , Sinan Karahan
IPC分类号： G01R33/028 , G01P15/00 , G01C19/00
CPC分类号： G01R33/0286 , G01C19/00 , G01P15/00 , G06F3/012 , G06F3/0346 , G06F3/038
摘要： Systems and methods are disclosed for predicting a future orientation of a device. A future motion sensor sample may be predicted using a plurality of motion sensor samples for the device up to a current time. After determining the current orientation of the device, the predicted motion sensor sample may be used to predict a future orientation of the device at one or more times.
摘要翻译： 公开了用于预测设备的未来定向的系统和方法。 可以使用用于该设备的多个运动传感器样本直到当前时间来预测将来的运动传感器样本。 在确定设备的当前方向之后，可以使用预测的运动传感器样本来一次或多次地预测设备的未来定向。
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公开(公告)号：US20150192440A1
公开(公告)日：2015-07-09
申请号：US14149707
申请日：2014-01-07
发明人： Rosa M.Y. Chow , William Kerry Keal , James B. Lim
CPC分类号： G01R33/0035 , G01C17/38 , G01C25/005 , G01D18/006 , G01L27/005 , G01P21/00
摘要： A device having a sensor may be calibrated by obtaining a condition of a device incorporating the sensor and initiating a calibration operation for the sensor based, at least in part, on the condition of the device. The condition may be a motion state, a charging state, a pattern of motion, an orientation, a location, a surrounding environment measurement, sensor usage, an age of calibration, a quality of calibration, or any combination. Further, the sensor may be an accelerometer, a gyroscope, a magnetometer or a pressure sensor.
摘要翻译： 具有传感器的装置可以通过至少部分地基于装置的状况获得包含传感器的装置的状态和启动用于传感器的校准操作来校准。 条件可以是运动状态，充电状态，运动模式，方向，位置，周围环境测量，传感器使用，校准年龄，校准质量或任何组合。 此外，传感器可以是加速度计，陀螺仪，磁力计或压力传感器。
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公开(公告)号：US11162792B2
公开(公告)日：2021-11-02
申请号：US16563751
申请日：2019-09-06
发明人： Anas Mahmoud , Hussein Sahli , Da Wang , Jacques Georgy
摘要： Anchor points associated with point of sale information may be ordered by segmenting a trajectory derived from sensor data defined by adjacent turns to generate candidate links for each segment from which possible paths for the trajectory are derived. Each derived possible path may be scored with a multi-objective function using a global optimization algorithm to select a solution path from the derived possible paths that may be used to order a plurality of anchor points.
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公开(公告)号：US10386203B1
公开(公告)日：2019-08-20
申请号：US14933663
申请日：2015-11-05
发明人： Yuan Zheng
IPC分类号： G01C25/00
摘要： Systems and devices are disclosed for calibration of gyroscope sensitivity. By comparing a reference orientation determined without gyroscope data to estimated orientations determined with gyroscope data, a calibrated sensitivity value may be derived using a known relationship between a reference orientation and estimated orientations difference and gyroscope sensitivity.
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公开(公告)号：US09921335B1
公开(公告)日：2018-03-20
申请号：US14680993
申请日：2015-04-07
发明人： William Kerry Keal
CPC分类号： G01V7/02
摘要： Systems and methods are disclosed for deriving linear acceleration using an accelerometer. The orientation of a device may be determined using only accelerometer data. The determined orientation may then be used to determine a gravity vector, such that linear acceleration may be derived by subtracting the gravity vector from accelerometer data.
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公开(公告)号：US20170176191A1
公开(公告)日：2017-06-22
申请号：US14976992
申请日：2015-12-21
发明人： Tao Li , Jacques Georgy , Da Wang , Sheng Mao , Hussein Sahli
CPC分类号： G01C21/34 , G01C21/206 , G01C21/30 , G01S19/01
摘要： The navigation solution of a portable device may be enhanced using map information. Sensor data for the portable device may be used to derive navigation solutions at a plurality of epochs over a first period of time. Position information for the device may be estimated at a time subsequent to the first period of time using the navigation solutions. Map information for an area encompassing a current location of the portable device may also be obtained. Multiple hypotheses regarding possible positions of the portable device may be generated using the estimated position information and the map information. By managing and processing the hypotheses, estimated position information for at least one epoch during the first period of time may be updated. An enhanced navigation solution for the at least one epoch may be provided using the updated estimated position information.
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公开(公告)号：US20160178657A9
公开(公告)日：2016-06-23
申请号：US14247142
申请日：2014-04-07
发明人： Sinan Karahan , Shang-Hung Lin , Alexey Morozov
CPC分类号： G01P21/00 , G01C25/005 , G01R35/005
摘要： Systems and methods are disclosed for calibrating a sensor. A recursive least squares estimation may be performed to update a mean and a covariance matrix for samples of data from a motion sensor and a bias estimate for the motion sensor may be derived from the mean and covariance matrix. The motion sensor may be an gyroscope, an accelerometer or a magnetometer.
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