INFORMATION PROCESSING UNIT, ITS METHOD AND PROVIDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To allow an information processing unit to use only a memory with a small capacity. SOLUTION: Transport stream data in compliance with the MPEG are fed to an input buffer 32 of a memory 12, which stores the data. Then a CPU 11 detects a timing of a vertical synchronizing signal Vsync of video data (1 frame) outputted from an NTSC output encoder 17 by using a timing detector 15. The CPU 11 conducts demultiplex processing in the timing to extract MPEG video data and AC-3 audio data from the MPEG transport stream data and stores the extracted video data to a video code buffer 33 and stores the extracted audio data to an audio code buffer 34.