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Registered SYSTEM FOR TRANSMITTING THE SCRAMBLED BROADCAST-SIGNALS IN SINGLE FREQUENCY NETWORK, AND A M
- Inventors
- Lee Hyun, Lee Soo In, Lee Gwang Soon, Lee Bong Ho, Lim Jong Soo, 박원진, 채태준, 홍충표
- Application No.
- 11909543 (2005.11.04)
- Publication No.
- 20100177895 (2010.07.15)
- Registration No.
- 8619987 (2013.12.31)
- Country
- UNITED STATES
- Project Code
- 05MR2300, Test trial for terrestrial mobile multimedia broadcast, Lim Jong Soo
- Abstract
- Disclosed is a system for transmitting encrypted broadcast signals to different transmitters on a single frequency network (SFN) in a digital broadcasting system. The system for transmitting encrypted broadcast signals on the SFN includes: a main broadcasting system for transmitting encrypted broadcast signals including data streams and transmitter identification information (TII) through a main broadcasting network; a repeating system for amplifying encrypted broadcast signals of the main broadcasting network and transmitting the amplified broadcast signals, or modulating and amplifying streams input by the main broadcasting system through a private line and repeating broadcast signals of the main broadcasting system through a repeating network; and a decrypting key provider for receiving a decrypting key value from the main broadcasting or repeating system and transmitting a user authentication and decrypting key to a charged subscriber terminal through a mobile communication network.