Patent ID: 7405772

Claim:
In a broadcasting receiver provided with both an analog broadcasting tuner and a digital broadcasting tuner, a broadcasting receiver comprising: a first means for successively selecting channels in the bands for analog broadcasting and digital broadcasting using the analog broadcasting tuner without using the digital broadcasting tuner; a second means for acquiring an automatic gain controller signal for the selected channel and the existence information on synchronizing signal in a signal outputted from the analog broadcasting tuner for the selected channel; a third means for storing information for channel selection related to a channel on which the synchronizing signal is detected in the signal outputted from the analog broadcasting tuner, as an analog broadcasting channel in a memory, while storing information for channel selection related to a channel on which the broadcasting wave is detected on the basis of the automatic gain controller signal and the synchronizing signal is not detected in the signal outputted from the analog broadcasting tuner, as a digital broadcasting channel in the memory; a fourth means for selecting the digital broadcasting channels stored in the memory by using the digital broadcasting tuner; a fifth means for storing information acquired by receiving each digital broadcasting channel in a memory; a sixth means for performing a first channel search for distinguishing whether or not a channel is the analog broadcasting channel and presuming whether or not a channel is the digital broadcasting channel by using the first means, the second means and the third means; and a seventh means for performing a second channel search for acquiring information of the presumed digital broadcasting channel stored in the memory by using the fourth means and the fifth means, said second channel search being performed independently from said first channel search.