Invention Grant
US07961054B2 Timing recovery for partial-response maximum likelihood sequence detector
有权
部分响应最大似然序列检测器的定时恢复
- Patent Title: Timing recovery for partial-response maximum likelihood sequence detector
- Patent Title (中): 部分响应最大似然序列检测器的定时恢复
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Application No.: US12260043Application Date: 2008-10-28
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Publication No.: US07961054B2Publication Date: 2011-06-14
- Inventor: Jomo K. Edwards , Christopher A. Gill , Devin K. Ng , Harry H. Tan , Salam Elahmadi , Matthias Bussman
- Applicant: Jomo K. Edwards , Christopher A. Gill , Devin K. Ng , Harry H. Tan , Salam Elahmadi , Matthias Bussman
- Applicant Address: US TX Dallas
- Assignee: Menara Networks, Inc.
- Current Assignee: Menara Networks, Inc.
- Current Assignee Address: US TX Dallas
- Agency: Blakely Sokoloff Taylor & Zafman, LLP
- Main IPC: H03L7/07
- IPC: H03L7/07

Abstract:
An embodiment of the present invention is a technique for timing recovery. A frequency acquisition loop locks a voltage controlled oscillator (VCO) clock of a multi-band VCO to a reference clock. The frequency acquisition loop generates first and second feedback clocks from the VCO clock. A data lock phase loop generates a driving signal corresponding to a phase error signal from interleaved partial response signal (PRS) samples based on the second feedback clock. The driving signal controls the multi-band VCO in a data phase lock mode. A lock detect controller detects a frequency lock condition in a frequency lock mode and a data lock condition in the data phase lock mode based on the first feedback clock and the reference clock.
Public/Granted literature
- US20100102888A1 TIMING RECOVERY FOR PARTIAL-RESPONSE MAXIMUM LIKELIHOOD SEQUENCE DETECTOR Public/Granted day:2010-04-29
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