Invention Grant
- Patent Title: Digital data recovery
- Patent Title (中): 数字数据恢复
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Application No.: US12117149Application Date: 2008-05-08
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Publication No.: US07965801B1Publication Date: 2011-06-21
- Inventor: Adrian W. O'Reilly , Noel J. Brady
- Applicant: Adrian W. O'Reilly , Noel J. Brady
- Applicant Address: US CA San Jose
- Assignee: XILINX, Inc.
- Current Assignee: XILINX, Inc.
- Current Assignee Address: US CA San Jose
- Agent W. Eric Webostad; Thomas George
- Main IPC: H04L7/00
- IPC: H04L7/00 ; H04L27/06

Abstract:
Data recovery, as well as associated circuitry and system, is described. An input word stream having a word width of at least one word is obtained and a sliding window is applied to it to resolve phases. Scores for phases are determined at least in part by: subdividing the sliding window into sample portions; applying a homogeneity function to each of the sample portions to determine respective values therefor; and summing sets of the values respectively associated with the phases to provide the scores. A score is selected from the scores according to at least one criterion to select a phase from the phases. A portion of a delayed version of the input word stream is sampled by application of the sliding window thereto using the phase selected to output sampled bits.
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