Patent ID: 6680754
Filing Date: 2004-01-20
Classification: H04N

Abstract:
A digital broadcasting receiver comprising:a first tuner for detecting a first broadcasting signal of a first selected channel and outputting the detected first broadcasting signal; a second tuner for detecting a second broadcasting signal of a second selected channel and outputting the detected second broadcasting signal; first and second channel decoders for decoding the first and second broadcasting signals input from the first and second tuners, respectively, into a prior-to-being-channel-coded state; a first decoder for decoding the first broadcasting signal which has been channel-decoded by the first channel decoder and outputting first broadcasting image data; a second decoder for decoding the second broadcasting signal which has been channel-decoded by the second channel decoder and outputting second broadcasting image data, and for format transforming the first and second broadcasting image data into a main picture format or a sub-picture format in order to output a picture-in-picture (PIP) screen; a first memory connected to the first decoder for storing the first broadcasting signal; a second memory connected to the second decoder for storing the second broadcasting signal; and a host processor for controlling operation of the first and second tuners, the first and second channel decoders, and the first and second decoders in order generate a PIP screen using a received broadcasting signal.