Measuring a horizontal eye opening during system operation

Details Measuring a horizontal eye opening during system operation Measuring a horizontal eye opening during system operation

2011-06-14

2011-06-14

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

Reexamination Certificate

active

07961831

ABSTRACT:
In one embodiment, the present invention includes a method for receiving an incoming signal from a communication channel at a receiver, sampling the incoming signal in first and second samplers that are independently clocked, comparing outputs of the samplers, and outputting a measure of a horizontal eye opening of the incoming signal based on the comparison. Other embodiments are described and claimed.

REFERENCES:
patent: 6594331 (2003-07-01), Soda
patent: 7627029 (2009-12-01), Ho et al.
patent: 2002/0060820 (2002-05-01), Buchali
patent: 2004/0114702 (2004-06-01), Friedman et al.
patent: 2004/0264615 (2004-12-01), Ho et al.
patent: 2005/0111852 (2005-05-01), Mahgerefteh et al.
patent: 2006/0078078 (2006-04-01), Moriizumi

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