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.

Date of Patent:
Feb. 09, 2016

Filed:

Jun. 30, 2014
Applicant:

Voltafield Technology Corporation, Jhubei, Hsinchu County, TW;

Inventor:

Ming-Yu Kuo, Hsinchu County, TW;

Assignee:

VOLTAFIELD TECHNOLOGY CORPORATION, Jhubei, Hsinchu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 17/28 (2006.01); G01R 33/02 (2006.01); G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
G01R 33/0206 (2013.01); G01C 17/28 (2013.01); G01R 33/09 (2013.01); G01R 33/093 (2013.01);
Abstract

A magnetoresistive sensing device is provided. A first sensed magnetic-field component in parallel with the x-axis and a second sensed magnetic-field component in parallel with the y-axis of an external magnetic field forming a first inclination angle with the x-axis and a second inclination angle with the y-axis are determined. A virtual plane is defined so as to render a magnetic-field component perpendicular to the virtual plane of the external magnetic field is essentially zero. The first inclination angle and the second inclination angle are adjusted with reference to the virtual plane. An x-axis magnetic-field component in parallel with the x-axis, a y-axis magnetic-field component in parallel with the y-axis and a z-axis magnetic-field component in parallel with the z-axis of the external magnetic field are estimated according to the adjusted first inclination angle, the adjusted second inclination angle, the first sensed magnetic-field component and the second sensed magnetic-field component.


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