Patent ID: 6483553
Filing Date: 2002-11-19
Classification: H04N

Abstract:
A digital/analog TV receiver, comprising:a controller for determining whether a channel selected by a user corresponds to a digital broadcast or an analog broadcast prior to presenting a broadcast signal for demodulation, and generating station selection data on the selected channel and a control signal based on the determination, wherein for the determination the controller uses a program additive information which exists merely in the digital broadcast in addition to video and audio information; a tuner for receiving the station selection data and tuning to a broadcasting signal associated with the selected channel out of signals received through an antenna; an analog broadcasting processor for demodulating an analog broadcasting signal into an audio signal and a video signal; a digital broadcasting processor for decoding a digital broadcasting signal into digital broadcasting information; a switch unit supplying output of the tuner to one of the analog broadcasting processor and the digital broadcasting processor; and an AGC(auto-gain controller) for receiving a gain signal from one of the analog broadcasting processor and the digital broadcasting processor and adjusting a signal gain of the broadcasting signal tuned at the tuner.