| 摘要 |
PURPOSE: A receiving channel control device of a broadcasting signal receiver and a method thereof are provided to receive a broadcast signal of a channel in which an offset frequency exists at high speed. CONSTITUTION: A receiving channel control device of a broadcasting signal receiver comprises a tuner(300), a demodulator(310), a demultiplexer(320), an AV signal decoder(330), a program information processor(340), a user interface(350). According to a channel desired to be received, the tuner receives a broadcast signal of a corresponding channel by setting up the frequency of PLL. The demodulator demodulates the broadcast signal. The demultiplexer demultiplexes the demodulation signal to extract an AV signal and program information. The AV signal decoder part decodes the AV signal. The program information processor processes the program information. The user interface controls the tuner, demodulator, demultiplexer, AV signal decoder and program information processor according to a user instruction inputted from the outside. |
