Invention Grant
- Patent Title: Phase detector for timing recovery loop
- Patent Title (中): 定时恢复回路的相位检测器
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Application No.: US12609031Application Date: 2009-10-30
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Publication No.: US07974369B2Publication Date: 2011-07-05
- Inventor: Jingfeng Liu , Hongwei Song
- Applicant: Jingfeng Liu , Hongwei Song
- Applicant Address: US CA Milpitas
- Assignee: LSI Corporation
- Current Assignee: LSI Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Mendelsohn, Drucker & Associates, P.C.
- Agent Craig M. Brown; Steve Mendelsohn
- Main IPC: H04L27/06
- IPC: H04L27/06

Abstract:
In one embodiment, a (hard-drive) read channel has a phase detector used in a timing recovery loop. The phase detector utilizes the sign bit and confidence value from a received log-likelihood ratio (LLR) signal to generate a mean value. The mean value is convolved with a partial response target to generate an estimated timing error signal. When implemented in a hard-drive read channel, the phase detector allows for timing recovery with lower loss-of-lock rates.
Public/Granted literature
- US20110103527A1 Phase Detector For Timing Recovery Loop Public/Granted day:2011-05-05
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