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. 19, 2015
Filed:
Dec. 30, 2013
Applicant:
Silicon Works Co., Ltd., Daejeon-si, KR;
Inventors:
Assignee:
SILICON WORKS CO., LTD., Daejeon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01); H03L 7/085 (2006.01);
U.S. Cl.
CPC ...
H03L 7/085 (2013.01);
Abstract
Disclosed herein is a circuit for controlling a variation in the frequency of a clock signal for blocking an unwanted variation in the frequency of the clock signal. When a frequency variation out of a set range is generated in a reference clock signal in the state in which the phases of the reference clock signal and a feedback clock signal have been locked, a control voltage for generating the feedback clock signal remains constant so that an abrupt variation generated in the frequency of the feedback clock signal is blocked.