METHOD AND APPARATUS FOR ALLOWING PLAYBACK DEVICES TO PERFORM SYNCHRONIZED PLAYBACK OF STREAMING CONTENT

摘要

An apparatus and method for allowing a plurality of playback devices to stream content of a master device simultaneously is provided. When the master device selects one of the playback devices as a reference device and multicasts a synchronization packet to the playback devices, the playback devices determine a synchronization time by comparing their own synchronization packet reception time with a synchronization packet reception time of the reference device. When the master device streams content, into which a time stamp is inserted based on the time of the reference device, the playback devices play the content based on the determined synchronization time. Therefore, even when the playback devices have different network latencies from the master device, the playback devices may accurately perform synchronized content playback.

主权项

1. A method of allowing a master device to stream content to a plurality of playback devices, the method comprising:
selecting one of the playback devices as a reference device; notifying an identifier of the reference device to the playback devices; multicasting a synchronization packet to the playback devices to allow the playback devices to determine a synchronization time with the reference device based on a reception time; and streaming content, into which a time stamp is inserted based on the time of the reference device, to the playback devices.