Method and control circuit for synchronizing playback of plurality of electronic devices

• Main Authors: DING WEIZHONG, HONG DIANJIU, LIN ZEEN, ZHU ZHONGSHI
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention provides a method and a control circuit for synchronizing playing of a plurality of electronic devices, wherein the plurality of electronic devices comprise a master device and a slave device. The method includes receiving, by the master device, audio data from a remote device as master audio data, and transmitting the master audio data to the slave device as slave audio data, where the slave device generates ultrasonic data according to the slave audio data, the slave device plays the slave end audio data and the ultrasonic data; estimating a delay amount of the ultrasonic data received by a microphone of the main device relative to the main end audio data by using a correction circuit; and utilizing a delay circuit to control the delay of the main end audio data according to the delay amount so as to generate main end output audio data to be played by the main device. 本发明提供一种用来对多个电子装置的播放进行同步的方法及控制电路，其中该多个电子装置包括主装置及从装置。该方法包括：利用该主装置自远程装置接收音频数据以作为主端音频数据，并且将该主端音频数据传送至该从装置以作为从端音频数据，其中该从装置依据该从端音频数据产