Polar modulator with signed amplitude reducing phase transitions
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United States of America Patent
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May 17, 2011
Grant Date -
Aug 14, 2008
app pub date -
Feb 14, 2007
filing date -
Feb 14, 2007
priority date (Note) -
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Abstract
A polar modulator including a signal converter configured to provide a phase signal and an amplitude signal based on at least one received signal is disclosed. A digital-to-analog converter is coupled to the signal converter, the digital-to-analog converter configured to receive an augmented signal, wherein a polarity of the augmented signal is selected to minimize an absolute phase change for sequential signals. A signal mixer is coupled to the digital-to-analog converter to receive an analog signal generated from the augmented signal.
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