MULTIMEDIA SIGNAL MATCHING SYSTEM AND METHOD FOR PERFORMING PICTURE-IN-PICTURE FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a multimedia signal matching system and method for performing a picture-in-picture (PIP) function. SOLUTION: The system includes: at least one set-top box including a decoder for decoding signals in a reference format and generating a control signal for performing the PIP function; and a multimedia matching device 203 for receiving multimedia signals in various formats from a broadcast communication network, processing the received signals into signals with the reference format responsive to the control signal. The multimedia matching device 203 includes: a reference signal processor 300 for extracting video and audio signals subjected to the PIP; a non-reference signal processor 310 for transcoding a multimedia signal in a non-reference format into a signal in the reference format; and a multimedia matching module 312 for performing the PIP of video signals using the control signal and for selecting an audio signal to be multiplexed into a multimedia signal format decodable by the set-top box. COPYRIGHT: (C)2006,JPO&NCIPI