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1. 发明申请

US20140303925A1 METHOD AND DEVICE FOR CALIBRATING A MAGNETOMETER USING PARTIAL SAMPLING 有权
标题翻译：用于使用部分采样校准磁力计的方法和装置
公开(公告)号：US20140303925A1
公开(公告)日：2014-10-09
申请号：US14242838
申请日：2014-04-01
申请人： MCube Inc.
发明人： Andy Milota
IPC分类号： G01C25/00 , G01R35/00
CPC分类号： G01C25/00 , G01C17/38 , G01R33/0035
摘要： A method and device for calibrating a magnetometer device. In an embodiment, the present invention provides a method to automatically calibrate a magnetometer device in the background with only limited movement in each of the three axis (approximately 20 degrees in each direction). A device implementing the present method will never get stuck in a lock-up state. Embodiments of the present invention provide a conservative and accurate magnetometer status indicator that is essential for indoor navigation using inertial sensors. The implemented algorithm is relatively low computationally intensive and is intelligent enough to know when it has the right kind and right amount of magnetic data before it initiates a calibration.
摘要翻译：一种用于校准磁力计装置的方法和装置。在一个实施例中，本发明提供了一种在背景中自动地校准磁力计装置的方法，其中仅在三个轴线（每个方向上约20度）中仅有有限的运动。实现本方法的装置将永远不会卡在锁定状态。本发明的实施例提供了使用惯性传感器的室内导航所必需的保守和精确的磁力计状态指示器。实现的算法计算密集度相对较低，并且足够智能，以便在启动校准之前知道其具有正确类型和数量的磁数据。

2. 发明授权

US09989988B2 Distributed MEMS devices time synchronization methods and system 有权
公开(公告)号：US09989988B2
公开(公告)日：2018-06-05
申请号：US15157354
申请日：2016-05-17
申请人： mCube Inc.
发明人： Andy Milota , Jobe Price
IPC分类号： G06F1/14 , G06F1/12 , H04W52/02 , H04W56/00
CPC分类号： G06F1/12 , G06F1/14 , H04W52/029 , H04W56/001 , Y02D70/00 , Y02D70/122 , Y02D70/1246 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/166
摘要： A method is provided for time synchronization in a MEMS (MicroElectroMecahnical system) based system having a MEMS processor and a plurality of MEMS devices. In a specific embodiment, the method includes, in the MEMS processor, transmitting a synchronization signal to the plurality of MEMS devices and saving a local time upon transmitting the synchronization signal. The MEMS processor also receives sampled data and time information from the plurality of MEMS devices, when the data and information become available. The method also includes, in one or more of the MEMS devices, receiving the synchronization signal from the MEMS processor and storing a local time upon receiving the synchronization signal. The MEMS device also performs a sensing operation and stores sampled sense data and sense time information.

3. 发明授权

US09677906B2 Method and device for calibrating a magnetometer using partial sampling 有权
公开(公告)号：US09677906B2
公开(公告)日：2017-06-13
申请号：US14242838
申请日：2014-04-01
申请人： MCube Inc.
发明人： Andy Milota
IPC分类号： G01C25/00 , G01C17/38 , G01R33/00
CPC分类号： G01C25/00 , G01C17/38 , G01R33/0035
摘要： A method and device for calibrating a magnetometer device. In an embodiment, the present invention provides a method to automatically calibrate a magnetometer device in the background with only limited movement in each of the three axis (approximately 20 degrees in each direction). A device implementing the present method will never get stuck in a lock-up state. Embodiments of the present invention provide a conservative and accurate magnetometer status indicator that is essential for indoor navigation using inertial sensors. The implemented algorithm is relatively low computationally intensive and is intelligent enough to know when it has the right kind and right amount of magnetic data before it initiates a calibration.

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