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. 24, 2009
Filed:
Mar. 15, 2005
Applicants:
Chang-fu Kuo, Hsin-Chu, TW;
Po-sen Tseng, Hsin-Chu, TW;
Shou-tsung Wang, Hsin-Chu, TW;
Ling-wei Ko, Hsin-Chu, TW;
Inventors:
Chang-Fu Kuo, Hsin-Chu, TW;
Po-Sen Tseng, Hsin-Chu, TW;
Shou-Tsung Wang, Hsin-Chu, TW;
Ling-Wei Ko, Hsin-Chu, TW;
Assignee:
MediaTek Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 7/085 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a phase-locked loop (PLL). Since a loop bandwidth of the PLL is a function of a gain of a phase detector and a gain of a voltage controlled oscillator (VCO), by adjusting the gain of the phase detector, the variation of the gain of the VCO (i.e., the tuning sensitivity) is compensated, so that the loop bandwidth of the PLL becomes more stable.