Invention Grant
- Patent Title: Apparatus and method of calibrating azimuth of mobile device
- Patent Title (中): 校准移动设备方位的装置和方法
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Application No.: US10987305Application Date: 2004-11-15
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Publication No.: US07069663B2Publication Date: 2006-07-04
- Inventor: Woong Kwon , Kyung-shik Roh , Sang-on Choi , Woo-sup Han , Young-bo Shim
- Applicant: Woong Kwon , Kyung-shik Roh , Sang-on Choi , Woo-sup Han , Young-bo Shim
- Applicant Address: KR Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Sughrue Mion, PLLC
- Priority: KR10-2003-0080347 20031113
- Main IPC: G01C17/38
- IPC: G01C17/38 ; G01P21/00
Abstract:
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.
Public/Granted literature
- US20050160609A1 Apparatus and method of calibrating azimuth of mobile device Public/Granted day:2005-07-28
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