APPARATUS AND METHOD FOR RECEIVING THE DISASTER BROADCASTING SIGNAL USING TII SIGNAL

摘要

An apparatus and a method for receiving a disaster broadcasting signal using a TII(Transmitter Identification Information) signal are provided to inform people of the generation of disaster with low power even in a standby mode in which broadcasting service is not received. An apparatus(120) for receiving a disaster broadcasting signal includes a null detector(122), a TII timing detector(123), a carrier power detector(124), a TII decoder(125), and a disaster alarm signal generator(126). The null detector detects null symbols from a broadcasting signal received through a broadcasting receiver(100). The TII timing detector detects timing information of a TII signal using the detected null symbols. The carrier power detector acquires a TII signal fast-Fourier-transformed by the broadcasting receiver according to the TII timing information to detect carrier power. The TII decoder decodes the fast-Fourier-transformed TII signal when the detected carrier power is greater than a predetermined reference value. The disaster alarm signal generator generates a predetermined disaster alarm signal when the code value of the decoded TII signal is identical to a predetermined disaster code.