Invention Grant
- Patent Title: Coarse lock detector
- Patent Title (中): 粗锁检测器
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Application No.: US14256862Application Date: 2014-04-18
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Publication No.: US09000814B2Publication Date: 2015-04-07
- Inventor: Moon-Sang Hwang , Won-Jun Choe , Han-Kyu Chi , Deog-Kyoon Jeong
- Applicant: Samsung Display Co., Ltd.
- Applicant Address: KR Gyeonggi-Do
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Knobbe Martens Olson & Bear LLP
- Priority: KR10-2011-0013739 20110216
- Main IPC: H03L7/00
- IPC: H03L7/00 ; H03L7/095 ; H03L7/081 ; H03L7/10

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.
Public/Granted literature
- US20140312941A1 COARSE LOCK DETECTOR Public/Granted day:2014-10-23
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