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:
Jan. 15, 2013
Filed:
Mar. 05, 2010
Applicants:
Shey-shi LU, Taipei, TW;
Hsien-ku Chen, Taipei, TW;
Inventors:
Shey-Shi Lu, Taipei, TW;
Hsien-Ku Chen, Taipei, TW;
Assignee:
National Taiwan University, Taipei, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D 9/00 (2006.01); G01R 25/00 (2006.01); H03L 7/06 (2006.01); H03L 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a PLL circuit and an associated method that allows the PLL circuit to operate at a higher operating frequency with a wider bandwidth and a better out-band noise suppression. The PLL circuit comprises a delay locked loop (DLL), a phase-frequency detector (PFD), a loop filter, a voltage controlled oscillator (VCO) and a frequency divider.