Invention Grant
- Patent Title: Coarse lock detector
- Patent Title (中): 粗锁检测器
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Application No.: US13398532Application Date: 2012-02-16
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Publication No.: US08729937B2Publication Date: 2014-05-20
- Inventor: Moon-Sang Hwang , Won-Jun Choe , Han-Kyu Chi , Deog-Kyoon Jeong
- Applicant: Moon-Sang Hwang , Won-Jun Choe , Han-Kyu Chi , Deog-Kyoon Jeong
- Applicant Address: KR Yongin, Gyeonggi-Do
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin, Gyeonggi-Do
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: KR10-2011-0013739 20110216
- Main IPC: H03L7/00
- IPC: H03L7/00

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
- US20120212264A1 COARSE LOCK DETECTOR Public/Granted day:2012-08-23
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