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:
Dec. 01, 2009
Filed:
Jun. 16, 2008
Applicants:
Wei-hsuan Tu, Hsinchu, TW;
Tse-hsiang Hsu, Hsin-Chu, TW;
Inventors:
Wei-Hsuan Tu, Hsinchu, TW;
Tse-Hsiang Hsu, Hsin-Chu, TW;
Assignee:
Mediatek Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G 7/12 (2006.01); H01L 31/00 (2006.01); H03B 5/04 (2006.01); H03F 3/45 (2006.01); H03L 1/02 (2006.01); H03L 7/06 (2006.01); H04B 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for tuning a filter is provided. The method includes: enabling a VCO circuit, wherein at least a portion of the VCO circuit is selected from the filter; generating an oscillation signal by the VCO circuit according to a driving signal; comparing the oscillation signal with a reference signal and generating a comparison result; and adjusting the driving signal according to the comparison result.