Systems and methods for post processing gain correction
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United States of America Patent
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Jun 24, 2014
Grant Date -
May 16, 2013
app pub date -
Jul 2, 2012
filing date -
Nov 14, 2011
priority date (Note) -
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Abstract
Various embodiments of the present invention provide circuits, systems and methods for data processing. For example, a data processing system is disclosed that includes: a data detector circuit, a filter circuit, a gain error generation circuit, and a multiplier circuit. The data detector circuit is operable to apply a data detection algorithm to a data set to yield a detected output. The filter circuit is operable to filter the detected output to yield a filtered output. The gain error generation circuit is operable to calculate an error value based upon a combination of an instance of the data set and a corresponding instance of the filtered output. The multiplier circuit operable to multiply the instance of the data set by a gain feedback value to yield a gain corrected output. The gain feedback value is derived from the error value.
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