A Single-Chip MPEG2 MP@ML Video Encoder LSI including Wide Search Range Motion Estimation (H±288,V±96) and Many Functions for Consumer Use

Abstract

A single chip encoder was developed including many functions for consumer application use. The main features are as follows : 1) Wide search range motion estimation, H±288 pixels, V±96 pixels. 2) Required external circuitry is only 32Mbit SDRAM. 3) Internal DSP controller to handle system and rate control. 4) Encoding NTSC and PAL image for MP@ML up to M=3. 5)Robustness against signal jitter. 6) Constant length coding for each GOP. 7) Auto detection of 3-2 pull down signal and 3-2 pull down inversion. 8) Temporal noise reduction, Scaling and Image cropping. The chip was designed using 0.4um CMOS process technology, the chip size is 13.7mm×12.4mm with 4.5M Tr and the power consumption is 1.2W at 3.3V.