发明授权
US08818718B2 PND repositioning detector for better navigation accuracy in a car
有权
PND重新定位检测器，以提高汽车的导航精度
- 专利标题： PND repositioning detector for better navigation accuracy in a car
- 专利标题（中）： PND重新定位检测器，以提高汽车的导航精度
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申请号： US12848807申请日： 2010-08-02
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公开(公告)号： US08818718B2公开(公告)日： 2014-08-26
- 发明人: Lionel J. Garin
- 申请人： Lionel J. Garin
- 申请人地址： US CA San Diego
- 专利权人： QUALCOMM Incorporated
- 当前专利权人： QUALCOMM Incorporated
- 当前专利权人地址： US CA San Diego
- 代理商 Shyam K. Parekh; Michael Johnson
- 主分类号： G06F19/00
- IPC分类号： G06F19/00 ; G01C21/20 ; G01C17/38
摘要：
An apparatus and method for a personal navigation apparatus comprising a personal navigation device (PND) for providing navigational guidance information. The PND may include a single-dimensional magnetic detector for sensing magnetic flux amplitudes of a magnetic field generated by a magnet. Alternatively, the PND may include a three-dimensional magnetic detector and a magnetic calibration module for determining an ambient magnetic field calibration value representing immediate surroundings of the PND.
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