SELF-CORRECTION TECHNIQUES FOR CRYSTAL OSCILLATOR
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United States of America Patent
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Oct 26, 2016
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Oct 26, 2016
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Techniques for calibrating a crystal oscillator of a wireless device are provided. A method according to these techniques includes operating a transmit path of the wireless device at a first carrier frequency, configuring a receive path of the wireless device to receive at a second carrier frequency, the second carrier frequency being offset from the first carrier frequency by a first frequency offset, transmitting a tone using the transmit path at a frequency that is offset from the first carrier frequency by a second frequency offset that is different than the first frequency offset, receiving a second tone via the receive path, and determining the oscillator error based on the second tone.
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