System and Method for Calibration of Timing Mismatch for Envelope Tracking Transmit Systems
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United States of America Patent
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Issued Date -
Mar 28, 2013
app pub date -
Sep 27, 2011
filing date -
Sep 27, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
One embodiment of the present invention relates to a system for calibrating of timing between an amplifier input signal and a modulated supply power. The system includes a supply modulation component, an error metric component, and a delay determiner. The supply modulation component provides the modulated supply power and the amplifier input signal according to an input signal and a set delay signal. The error metric component provides information from a transmitted amplitude signal and a received amplitude signal. The delay determiner generates timing adjustments in the form of the set delay signal from the error metric information.
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