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.:

US 7015691 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 21, 2006

Filed:

Aug. 12, 2003
Applicants:

Myung-sam Kang, Daejeon, KR;

Sang-on Choi, Suwon-si, KR;

Won-youl Choi, Suwon-si, KR;

Jang-kyu Kang, Daejeon-si, KR;

Inventors:

Myung-Sam Kang, Daejeon, KR;

Sang-On Choi, Suwon-si, KR;

Won-Youl Choi, Suwon-si, KR;

Jang-Kyu Kang, Daejeon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a weak-magnetic field sensor a rectangular ring-shaped magnetic core is wound by exciting circuit patterns and detecting circuit patterns, and weak-magnetic field sensors are implemented in x-axis and y-axis directions, respectively, to precisely calculate azimuth, thereby sensing a weak-magnetic field having a strength similar to that of earth's magnetic field. The sensor includes a magnetic core having first and second cores connected in parallel to each other; exciting coils wound around the first and second cores, respectively, to supply alternating excitation current to the magnetic core; and a detecting coil alternately arranged together with the exciting coils on the same surfaces on which the exciting coils are formed, and wound around the first and second cores, in order to detect variation of magnetic fluxes generated in the magnetic core.


Find Patent Forward Citations

Kang, Myung-Sam. (2006). Weak-magnetic field sensor using printed circuit board technology and method of manufacturing the same (U.S. Patent No. 7015691). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7015691

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