METHOD AND CONTROL CIRCUIT FOR PERFORMING SYNCHRONIZATION ON PLAYBACK OF MULTIPLE ELECTRONIC DEVICES
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United States of America Patent
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Issued Date -
Dec 28, 2023
app pub date -
Jun 26, 2023
filing date -
Jun 26, 2023
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Abstract
A method and a control circuit for performing synchronization on playback of multiple electronic devices are provided, where the multiple electronic devices include a master device and a slave device. The method includes: utilizing the master device to receive audio data from a far-end device to be master audio data, and transmitting the master audio data to the slave device to be slave audio data, where the slave device generates ultrasound data according to the slave audio data, to make the slave device play the slave audio data and the ultrasound data; utilizing a calibration circuit to estimate a delay value between the ultrasound data received by a microphone of the master device and the master audio data; and utilizing a delay circuit to control a delay of the master audio data according to the delay value, to generate master output audio data for being played by the master device.
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