Eye quality monitoring system and method
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United States of America Patent
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Jan 19, 2016
Grant Date -
Dec 10, 2015
app pub date -
Jun 9, 2014
filing date -
Jun 9, 2014
priority date (Note) -
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Abstract
An eye quality monitoring system may include an eye quality monitor that includes a charge pump that is configured to output (a) a first charge in a first direction upon detection of a first transition of a sampled non-return-to-zero (NRZ) data signal in a first region of a unit interval of an eye pattern, and (b) a second charge in a second direction upon detection of a second transition of the sampled NRZ data signal in a second region of the unit interval of the eye pattern. The first direction is opposite from the second direction. The eye quality monitor is configured to form an eye quality output that relates to a quality of the eye pattern based on the first and second charges.
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