Low-power video encoder/decoder chip set for digital VCRs

Since low-power battery operation is essential for a portable VCR with video camera, the complex computation of MPEG2 encoding is not suitable for consumer digital VCR. This implementation of the video codec using compression optimized for LSI has more than an order of magnitude lower power consumption than that of recently-reported MPEG2 codecs. Power-saving modes and 0.5 /spl mu/m 2 V CMOS standard-cell library also reduce power. Two chips, Shuffling LSI and Compression LSI, together with a 5 Mb DRAM, can either encode the CCIR601 digital component video signal into the standard-definition digital VCR (DVCR) format or decode the DVCR format signal into a component video signal.