Method of reducing channel switching delay in digital broadcast receiver and digital broadcast receiver using the same

摘要

A method and an apparatus for reducing channel switching delay in a digital broadcast receiver (100) are provided. The digital broadcast receiver (100) includes a signal reception unit (10), which receives a broadcast signal and converts the received broadcast signal into an intermediate frequency (IF) signal, a digital demodulation unit (20), which retrieves a transport stream from the IF signal, a demultiplexing unit (30), which extracts a video signal from the transport stream by parsing the transport stream, a video decoder (40), which retrieves a video image from the video signal by decoding the video signal, and an output selection unit (50), which prevents a background image from being output and outputs the video image when sensing a first intra frame of the video signal input to the video decoder (40) after the digital broadcast receiver (100) is switched to a new channel.