Method and apparatus for calibrating time alignment
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United States of America Patent
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Mar 8, 2016
Grant Date -
Jul 10, 2014
app pub date -
Dec 20, 2013
filing date -
Jan 4, 2013
priority date (Note) -
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Abstract
A method includes setting a circuit to a mode. A test tone having a first frequency is provided to the circuit for use in calibrating the circuit. A received signal is generated based on an output signal of the circuit, the received signal including a component having a second frequency that is a harmonic of the first frequency. A magnitude of the component having the second frequency in the received signal is measured. A delay of the circuit corresponding to the mode is adjusted according to the magnitude of the component.
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