发明授权
- 专利标题： Apparatus and method of calibrating azimuth of mobile device
- 专利标题（中）： 校准移动设备方位的装置和方法
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申请号： US10987305申请日： 2004-11-15
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公开(公告)号： US07069663B2公开(公告)日： 2006-07-04
- 发明人: Woong Kwon , Kyung-shik Roh , Sang-on Choi , Woo-sup Han , Young-bo Shim
- 申请人： Woong Kwon , Kyung-shik Roh , Sang-on Choi , Woo-sup Han , Young-bo Shim
- 申请人地址： KR Gyeonggi-do
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人地址： KR Gyeonggi-do
- 代理机构： Sughrue Mion, PLLC
- 优先权： KR10-2003-0080347 20031113
- 主分类号： G01C17/38
- IPC分类号： G01C17/38 ; G01P21/00
摘要：
Provided are an apparatus and method of calibrating azimuth of a mobile device. The apparatus includes: a magnetic field measuring unit having a plurality of magnetic sensors aligned in a constant angle interval on the mobile device and measuring magnetic field data indicating magnitudes of a magnetic field in different directions; and a controller generating a calibration table indicating a correspondence between an actual magnetic field trajectory formed by the magnetic field data and a theoretical magnetic field trajectory and calibrating azimuth of the mobile device using the calibration table.