Patent ID: 7646432
Filing Date: 2010-01-12
Classification: H04N

Abstract:
1. A multimedia signal matching system for performing a picture-in-picture function, comprising: at least one set-top box including a decoder for decoding signals in a predetermined reference format and for generating a control signal for performing the picture-in-picture function; and a multimedia matching device for receiving multimedia signals in various formats from a broadcast communication network, processing the multimedia signals into the predetermined reference format in response to the control signal, wherein said multimedia matching device includes: a reference signal processor for extracting video and audio signals from the multimedia signals to perform the picture-in-picture function; a non-reference signal processor for transcoding the multimedia signals into the predetermined reference format if the multimedia signals are in a non-reference format; and a multimedia matching module for performing the picture-in-picture function for a display of the video signals in response to the control signal and selecting an audio signal to be multiplexed into a multimedia signal format decodable by the set-top box.