상세정보
등록 물리계층 Multicast switch를 이용한 IP-TV 방송 서비스 방법
- 출원번호
- 11678648 (2007.02.26)
- 공개번호
- 20080080499 (2008.04.03)
- 등록번호
- 7675870 (2010.03.09)
- 출원국
- 미국
- 협약과제
- 06MT2900, BcN 네트워크 엔지니어링 기술연구, 김영선
- 초록
- An Internet Protocol Television (IP-TV) broadcasting service system and method using a physical layer multicast switch are provided. The system comprises: a head end which converts an Ethernet signal to a virtual concatenation group (VCG) signal of a synchronous digital hierarchy/synchronous optical network (SDH/SONET); a multicast switch which multicasts the VCG signal in a physical layer; and a tail end which receives the multicasted VCG signal through a Synchronous Transmission Module level n (STM-N) optical link and restores the VCG signal to the Ethernet signal. Therefore, high quality TV broadcasting can be provided in an IP multicast network.
- KSP 제안 키워드
- IP multicast, Internet Protocol Television(IPTV), Internet protocol(IP), Optical network, Physical Layer, Service System, Synchronous Digital Hierarchy, Synchronous optical network, TV broadcasting, Virtual concatenation, multicast network, optical link