发明授权
US09157736B2 Portable electronic device adapted to provide an improved attitude matrix
有权
适于提供改进的姿态矩阵的便携式电子设备
- 专利标题： Portable electronic device adapted to provide an improved attitude matrix
- 专利标题（中）： 适于提供改进的姿态矩阵的便携式电子设备
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申请号： US14230677申请日： 2014-03-31
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公开(公告)号： US09157736B2公开(公告)日： 2015-10-13
- 发明人: Anand Ravindra Oka , Nazih Almalki , Christopher Harris Snow
- 申请人： BlackBerry Limited
- 申请人地址： CA Waterloo
- 专利权人： BLACKBERRY LIMITED
- 当前专利权人： BLACKBERRY LIMITED
- 当前专利权人地址： CA Waterloo
- 代理机构： Perry + Currier Inc.
- 主分类号： G01C9/00
- IPC分类号： G01C9/00 ; G01B21/16 ; G06F15/00 ; G01C19/00
摘要：
According to one aspect, a method of determining an attitude matrix on a portable electronic device. The method includes determining a first attitude matrix gradient using data from at least one of an accelerometer and a magnetometer, determining a second attitude matrix gradient using data from a gyroscope, fusing the first attitude matrix gradient and the second attitude matrix gradient based on a mixing coefficient to generate a fused gradient, and based on the fused gradient, updating a fine attitude matrix for the portable electronic device.
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