The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2008
Filed:
Nov. 15, 2004
Woong Kwon, Seongnam-si, KR;
Young-bo Shim, Seoul, KR;
Kyung-shik Roh, Seongnam-si, KR;
Sang-on Choi, Suwon-si, KR;
Woo-sup Han, Yongin-si, KR;
Woong Kwon, Seongnam-si, KR;
Young-bo Shim, Seoul, KR;
Kyung-shik Roh, Seongnam-si, KR;
Sang-on Choi, Suwon-si, KR;
Woo-sup Han, Yongin-si, KR;
Samsung Electronics Co., Ltd., Swon-si, KR;
Abstract
Provided are an apparatus and method of calibrating azimuth of a mobile device. The apparatus includes: a motor; a magnetic field measuring unit disposed in the mobile device and measuring magnetic field data indicating magnitudes of a magnetic field in different directions while being rotated by the motor; and a controller driving the motor, 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.