System For Transmitting The Scrambled Broadcast-Signals In Single Frequency Network, And A Method Thereof
First Claim
1. In a system for transmitting broadcast signals on a single frequency network (SFN) for terrestrial and satellite digital broadcasting, a system for transmitting encrypted broadcast signals on the SFN, comprising:
- 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.
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Accused Products
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.
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Citations
11 Claims
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1. In a system for transmitting broadcast signals on a single frequency network (SFN) for terrestrial and satellite digital broadcasting, a system for transmitting encrypted broadcast signals on the SFN, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In a method for transmitting broadcast signals on a single frequency network (SFN) for terrestrial and satellite digital broadcasting, a method for transmitting encrypted broadcast signals on the SFN comprising:
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a) a system multiplexer of a main broadcasting station multiplexing service multiplexed data into broadcast signals; b) encrypting the broadcast signals and generating an encrypting key; c) inserting transmitter identification information (TII) to the encrypted broadcast signals so that a subscriber terminal may determine whether the encrypted broadcast signals are transmitted through a main broadcasting network or a repeating network; d) transmitting the encrypted broadcast signals to an uncharged or to charged subscriber through the main broadcasting network; and e) providing a decrypting key of the encrypted broadcast signals to a mobile communication system through a mobile communication network or a private line. - View Dependent Claims (10, 11)
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Specification