Abstract
NHK is studying a method to synchronize video playback between multi-screens for an advancement of Hybridcast services. In this paper we propose a method that uses MPEG-DASH for the delivery of an IP stream that is to be displayed in synchronization with broadcasting. In the method an MPD file is periodically updated to adjust the starting position of IP stream as the broadcasting program progresses. Also the client buffers IP stream for precise synchronization based on the difference of time stamps of both streams. This paper also describes an experiment using a prototype system.
