公开(公告)号：US20160077609A1

公开(公告)日：2016-03-17

申请号：US14888255

申请日：2014-04-30

Applicant: HILLCREST LABORATORIES, INC.

Inventor： Bryan A. COOK ,  Yun LI

IPC: G06F3/0346 ,  G06F3/038

CPC classification number: G06F3/0346 ,  G06F3/038

Abstract: The present inventions generally relate to methods and dedicated apparatuses outputting a variable mapped on a device orientation in a non-inertial reference system, with the device orientation being estimated using measurements of motion sensors (such as 3D accelerometers and gyroscopes) and a magnetometer or other similar sensors including cameras. A variable mapped on an orientation of a device is smoothed to have a gradual evolution by adjusting the estimated orientation of the device obtained via sensor fusion or other sensor processing to take into consideration a current measured angular velocity.

Abstract translation: 本发明一般涉及在非惯性参考系统中输出映射在装置取向上的变量的方法和专用设备，其中使用运动传感器（例如3D加速度计和陀螺仪）以及磁力计或其他 类似的传感器包括相机。 通过调整通过传感器融合或其他传感器处理获得的装置的估计取向以考虑当前测量的角速度，平滑地映射到装置的取向上的变量以具有逐渐演变。

公开(公告)号：US20150226578A1

公开(公告)日：2015-08-13

申请号：US14266134

申请日：2014-04-30

Applicant: HILLCREST LABORATORIES, INC.

Inventor： Bryan A. COOK ,  Yun LI ,  Matthew G. LIBERTY

IPC: G01C25/00

CPC classification number: G01C25/005 ,  A63F13/25 ,  G01C19/5776

Abstract: A method, a filtering module, and a computer-readable medium are configured to filter measurements acquired in a sensor reference system. Filtered measurements of motion sensors and a magnetometer attached to the device may then be used to determine orientation of a device in a non-inertial reference system. The measurements are filtered in a reference system, whose position relative to the sensor system can be calculated, and in which gravity and Earth's magnetic field have substantially constant direction and magnitude during the filtering window.

Abstract translation: 配置方法，过滤模块和计算机可读介质来过滤在传感器参考系统中获取的测量结果。 可以使用运动传感器和连接到设备的磁力计的滤波测量来确定非惯性参考系统中的设备的方位。 在参考系统中过滤测量值，该参考系统可以计算其相对于传感器系统的位置，并且其中重力和地球的磁场在滤波窗口中具有基本恒定的方向和幅度。

公开(公告)号：US20160349078A1

公开(公告)日：2016-12-01

申请号：US15185461

申请日：2016-06-17

Applicant: HILLCREST LABORATORIES, INC.

Inventor： Bryan A. COOK ,  Yun LI ,  Matthew G. LIBERTY

IPC: G01C25/00 ,  A63F13/25 ,  G01C19/5776

CPC classification number: G01C25/005 ,  A63F13/25 ,  G01C19/5776

Abstract: A method, a filtering module, and a computer-readable medium are configured to filter measurements acquired in a sensor reference system. Filtered measurements of motion sensors and a magnetometer attached to the device may then be used to determine orientation of a device in a non-inertial reference system. The measurements are filtered in a reference system, whose position relative to the sensor system can be calculated, and in which gravity and Earth's magnetic field have substantially constant direction and magnitude during the filtering window.