한국통신학회논문지 B : 네트워크 및 융합 서비스, v.28, no.9A, pp.746-753
ISSN
1226-4717
Publisher
한국통신학회 (KICS)
Language
Korean
Type
Journal Article
Abstract
본 논문에서는 ATSC-DASE 기반의 지상파 디지털 데이터 방송 서비스의 비스트리밍 동기화 데이터(non-streaming synchronized data) 처리를 위한 효율적인 알고리즘을 제안하고 있다. 비스트리밍 동기화 데이터는 방송되는 A/V(audio/video)와 관련된 시간 정보인 PTS(presentation time stamp)와 함께 DSM-CC(digital storage media-command and control) section에 캡슐화 되어 A/V와 다중화 되고 MPEG-2 TS(transport stream)로 전송된다. 수신측에서는 PC형 세톱박스에 의해 A/V는 실시간으로 초리되며, 비스트리밍 동기화 데이터는 제안된 알고리즘을 이용하여 저장되고 정확한 시간에 재생된다. 이를 검증하기 위해 XML 기반의 비스트리밍 동기화 데이터를 저작하여 데이터 시나리오를 제안하였으며, DA(declarative application) 브라우저를 이용하여 데이터를 재생하였다.
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