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:
May. 22, 2012
Filed:
May. 12, 2009
Applicant:
Chia-hsin Wu, Taipei County, TW;
Inventor:
Chia-Hsin Wu, Taipei County, TW;
Assignee:
Mediatek Inc., Science-Based Industrial Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/08 (2006.01); G01R 35/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A calibration apparatus includes: a first circuit arranged for generating a reference voltage with respect to a first circuit element according to a reference current flowing to the first circuit element, a second circuit arranged for generating an output voltage according to a tunable current, and an adjusting circuit coupled to the first circuit and the second circuit for adjusting the tunable current to a target current value according to the reference voltage and the output voltage.