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    Systems and methods for gyroscope calibration
    2.
    发明授权
    Systems and methods for gyroscope calibration 有权

    公开(公告)号：US10386203B1

    公开(公告)日：2019-08-20

    申请号：US14933663

    申请日：2015-11-05

    申请人： InvenSense, Incorporated

    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.

    SYSTEMS AND METHODS FOR DETECTING A MAGNETIC ANOMALY
    3.
    发明申请
    SYSTEMS AND METHODS FOR DETECTING A MAGNETIC ANOMALY 审中-公开
    用于检测磁性异常的系统和方法

    公开(公告)号：US20160011022A1

    公开(公告)日：2016-01-14

    申请号：US14329531

    申请日：2014-07-11

    申请人： InvenSense, Incorporated

    发明人： Yuan Zheng ,  Shang-Hung Lin ,  William Kerry Keal

    IPC分类号： G01D18/00 ,  G01B7/00 ,  G01C19/00

    CPC分类号： G01D18/00 ,  G01C17/38 ,  G01R33/00 ,  G01R33/0035

    摘要： Systems and methods are disclosed for detecting when a magnetic anomaly may impact the quality of data being output by a magnetometer. A plurality of detection algorithms may be performed in parallel on the sensor data. Further, indication of a anomaly from one or a combination of the detection algorithms may cause the magnetometer data to have a reduced contribution in any sensor fusion operation or may be omitted from a sensor fusion operation as desired.

    摘要翻译： 公开了用于检测磁异常何时可能影响由磁力计输出的数据的质量的系统和方法。 可以在传感器数据上并行地执行多个检测算法。 此外，从检测算法的一个或组合指示异常可导致磁力计数据在任何传感器融合操作中具有减小的贡献，或者可以根据需要从传感器融合操作中省略。