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:
Aug. 16, 2005
Filed:
Aug. 05, 2003
Sang-on Choi, Suwon-si, KR;
Woo-jong Cho, Suwon-si, KR;
Woo-jong Lee, Suwon-si, KR;
Chan-gook Park, Seoul, KR;
Seong-yun Cho, Seoul, KR;
Sang-on Choi, Suwon-si, KR;
Woo-jong Cho, Suwon-si, KR;
Woo-jong Lee, Suwon-si, KR;
Chan-gook Park, Seoul, KR;
Seong-yun Cho, Seoul, KR;
Samsung Electric Co., Ltd., Gyeonggi-do, KR;
Abstract
An apparatus for calculating an azimuth angle includes a two-axis earth magnetic sensor, which is mounted on a device that requires azimuth information, for measuring a strength of an earth magnetic field according to the azimuth information if the device moves, an inclinometer for calculating an attitude such as a roll angle and a pitch angle, a signal conditioning unit including an analog-to-digital (A/D) converter for converting sensor data into a digital value, a microprocessor for calculating the azimuth information by compensating for an attitude error using outputs of the two-axis earth magnetic sensor and the inclinometer, a serial communication interface for transmitting the data processed by the microprocessor, and an LCD module for displaying the azimuth information calculated by the microprocessor.