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:
Apr. 07, 2015
Filed:
Apr. 18, 2014
Applicant:
Samsung Display Co., Ltd., Yongin, Gyunggi-Do, KR;
Inventors:
Moon-Sang Hwang, Yongin, KR;
Won-Jun Choe, Yongin, KR;
Han-Kyu Chi, Yongin, KR;
Deog-Kyoon Jeong, Yongin, KR;
Assignee:
Samsung Display Co., Ltd., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 7/00 (2006.01); H03L 7/095 (2006.01); H03L 7/081 (2006.01); H03L 7/10 (2006.01);
U.S. Cl.
CPC ...
H03L 7/095 (2013.01); H03L 7/0812 (2013.01); H03L 7/101 (2013.01);
Abstract
A coarse lock detector for a delayed locked loop (DLL) is disclosed. The coarse lock detector includes multiple detection cells. Each detection cell receives a delayed clock phase and an output of a previous detection cell as inputs. To increase time for the output of the previous detection cell to propagate, the detection cells are arranged in groups such that the output from the previous detection cell is generated by a detection cell which is more than one detection cell previous.