Patent ID: 6108044
Filing Date: 2000-08-22
Classification: H04N

Abstract:
A receiver comprising:a tuner which receives a high-definition signal having a digital format and a normal signal having an analog format;a first demodulator which demodulates said high-definition signal output by said tuner and outputs a demodulated high-definition signal;a detector which detects whether said normal signal exists in said demodulated high-definition signal to generate a detection signal, and which removes said normal signal;a first signal processor which processes said high-definition signal output by said detector and restores said high-definition signal to an image signal, which is output as a high-definition image signal;a second demodulator which demodulates said normal signal output from said tuner and outputs a demodulated normal signal;a second signal processor which processes said demodulated normal signal and outputs a normal image signal;a controller which receives said detection signal, as well as a broadcasting mode signal input by a user and a channel mode signal input by a user, and generates a selection signal; anda selector which outputs either said high-definition image signal or said normal image signal according to said selection signal.