BROWSE
Detail
Registered IP-TV broadcasting service method using physical layer’s multicast switch
- Inventors
- Kyung-Gyu Chun, Soon Seok Lee
- Application No.
- 11678648 (2007.02.26)
- Publication No.
- 20080080499 (2008.04.03)
- Registration No.
- 7675870 (2010.03.09)
- Country
- UNITED STATES
- Project Code
- 06MT2900, BcN Network Engineering, Kim Young Sun
- Abstract
- 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.