Invention Grant
- Patent Title: Clock recovery for a data receiving unit
- Patent Title (中): 数据接收单元的时钟恢复
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Application No.: US14548087Application Date: 2014-11-19
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Publication No.: US09252785B2Publication Date: 2016-02-02
- Inventor: Peter Buchmann , Pier Andrea Francese , Thomas H. Toifl
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Nicholas D. Bowman; Jeff Tang
- Priority: GB1321031.5 20131128
- Main IPC: H04L7/00
- IPC: H04L7/00 ; H03L7/00 ; H04L7/033

Abstract:
Clock recovery for a data receiving unit is disclosed. Clock recovery can include obtaining an early/late signal from an incoming data stream. The early/late signal indicates if a set of one or more data samples of the incoming data stream tends to be earlier or later than an edge of a phase-rotated clock signal provided depending on a phase offset value. Clock recovery can include updating a phase rotation counter value in response to the early/late signal. Clock recovery can include determining the phase offset value depending on a rounded phase rotation counter value. The phase offset value can be further determined by selecting one of a set of options including maintaining, increasing, or decreasing the rounded phase rotation counter value. The selecting is performed depending on the early/late signal and depending on the phase rotation counter value.
Public/Granted literature
- US20150146830A1 CLOCK RECOVERY FOR A DATA RECEIVING UNIT Public/Granted day:2015-05-28
Information query