A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.

 
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> Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

> Obfuscating computer code to prevent an attack

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