公开(公告)号：US10670402B2

公开(公告)日：2020-06-02

申请号：US14530494

申请日：2014-10-31

申请人： Invensense Incorporated

发明人： Bashir Kazemipur ,  Amr Al-Hamad ,  Jacques Georgy ,  Zainab Syed ,  Christopher Goodall ,  Naser El-Sheimy

IPC分类号： G01C21/00 ,  G01C21/20 ,  G01S5/16 ,  G06T7/20 ,  G01S19/39 ,  G01S19/48 ,  G01S19/45 ,  G01S11/12

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.

公开(公告)号：US20150127259A1

公开(公告)日：2015-05-07

申请号：US14530494

申请日：2014-10-31

申请人： Invensense Incorporated

发明人： Bashir Kazemipur ,  Amr Al-Hamad ,  Jacques Georgy ,  Zainab Syed ,  Christopher Goodall ,  Naser El-Sheimy

IPC分类号： G01C21/00

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.

摘要翻译： 公开了用于确定使用光学传感器的便携式设备的导航约束的系统和方法。 导航约束可用于补充其他导航解决方案或可以独立使用。 光学传感器可以捕获要处理的多个样本以确定约束。 确定约束可以包括确定使用的上下文，区分使用模式，估计便携式设备的方向，确定绝对和/或相对高程，确定运动方向和确定便携式设备的速度的任何或全部 样品。