MULTIMEDIA USB MEMORY STICK EQUIPPED WITH MPEG4 CONTENTS PLAYBACK FUNCTION, MP3 FUNCTION, AND DIGITAL CAMCORDER FUNCTION

摘要

Purpose: a multimedia USB (Universal serial bus) stores item, it is equipped with MPEG4 (Motion Picture Experts Group) content playback function, one MP3 (MPEG levels 3) function, an and DV function, to a user setting at portable and convenience is provided, by installing multimedia function in a small space with a SOC (monolithic system). Construction: a device includes USB memory sticks, a SOC blocks, TFT (thin film transistor) LCD, a DV, a MPEG4 player and a battery. SOC blocks are equipped with a CPU, a graphics accelerator, a buffer storage and a driver and connect with one LCD and video camera. MPEG4 player typically includes the physical combination (coder/decoder) of coding and decoding circuit using a MPEG4 and an AAC (advanced audio codec) compresses or make live image/audio data decompression. When device is connected to a computer, device carries out operating with USB power and changes storage battery. The application program component of the operations of one OS (operating system) and one is stored in USB stick memories.