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:
Mar. 17, 2015
Filed:
Jul. 14, 2011
Applicant:
Thart Fah Voo, Singapore, SG;
Inventor:
Thart Fah Voo, Singapore, SG;
Assignee:
Marvell International Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/03 (2006.01); G01R 35/00 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G01R 35/005 (2013.01); G11B 2005/0018 (2013.01);
Abstract
A bias calibration circuit includes a first current source that can provide a majority biasing current, sufficient to provide most but not all of a desired bias voltage across a sensor. A second current source can provide a remaining amount of biasing current (minority biasing current) to provide a bias voltage across the sensor. In some embodiments, the current sources are programmable and codes are determined for programming the first and second current sources. The codes can be stored in a memory.