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:
Mar. 21, 2017

Filed:

Sep. 26, 2012
Applicant:

Multidimension Technology Co., Ltd., Zhangjiagang, CN;

Inventors:

James Geza Deak, Zhangjiagang, CN;

Weifeng Shen, Zhangjiagang, CN;

Xiaofeng Lei, Zhangjiagang, CN;

Songsheng Xue, Zhangjiagang, CN;

Assignee:

MultiDimension Technology Co., Ltd., Zhangjiagang Jiangsu, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/09 (2006.01); G01R 35/00 (2006.01); G01R 33/00 (2006.01);
U.S. Cl.
CPC ...
G01R 35/005 (2013.01); G01R 33/007 (2013.01); G01R 33/0017 (2013.01); G01R 33/0035 (2013.01);
Abstract

The present invention discloses a magnetic field sensing device that utilizes a single coil for calibrating the response of the sensor to compensate for temperature dependent sensitivity drift and also for resetting the magnetic field sensor in order to eliminate hysteresis. The single coil configuration is advantageous since it reduces the size of the sensor chip by decreasing the number of contact pads on the chip and also because it wastes less space, which permits an increase in the density of the magnetoresistive elements on the sensor chip.


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