Method and apparatus for multi-level de-emphasis
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United States of America Patent
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Nov 24, 2015
Grant Date -
Jun 26, 2014
app pub date -
Dec 21, 2012
filing date -
Dec 21, 2012
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Abstract
A distribution current is split into a first control current, a second control current, and a third control current, in an apportionment according to a distribution command. A first control voltage is generated in response to the third control current. A second control voltage is generated as indication of the first control current, and a third control voltage is generated as indication of the second control current. Optionally, de-emphasis contribution of a first driver, a second driver and a third driver to an output is controlled based, at least in part, on the first control voltage, the second control voltage and the third control voltage, respectively.
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