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:
Feb. 12, 2013
Filed:
Dec. 30, 2010
Ki-jin Kim, Gyeonggi-do, KR;
Kwang Ho Ahn, Gyeonggi-do, KR;
Ki-Jin Kim, Gyeonggi-do, KR;
Kwang Ho Ahn, Gyeonggi-do, KR;
Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do, KR;
Abstract
A phase-locked loop based frequency synthesizer generates a plurality of output reference signals by phase-delaying an input reference signal and generates a plurality of comparison signals by using a signal having a frequency divided by the fractional frequency divider. Here, the comparison signals are lower than the divided frequency. Further, the phase-locked loop based frequency synthesizer controls an output frequency of a voltage controlled oscillator through phase and frequency comparison between the plurality of output reference signals and the plurality of comparison signals.