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. 23, 2014
Filed:
Feb. 25, 2014
Applicant:
SK Hynix Inc., Icheon-si Gyeonggi-do, KR;
Inventors:
Seung Geun Baek, Icheon-si, KR;
Hoon Choi, Icheon-si, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/095 (2006.01); H03L 7/14 (2006.01);
U.S. Cl.
CPC ...
H03L 7/14 (2013.01);
Abstract
A phase determination circuit includes a first phase comparison unit, a flag generation unit and a locking detector. The first phase comparison unit compares phases of a reference clock signal and a feedback clock signal and generates a first phase comparison signal. The flag generation unit generates a flag signal based on phases of the reference clock signal and a clock signal, and the first phase comparison signal. The locking detector prevents generation of a locking signal based on the first phase comparison signal.