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High-Throughput Technologies for Video Signal Processor (VSP) LSIs
IEICE TRANSACTIONS on Electronics
Publication Date: 1996/04/25
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Ultra-High-Speed LSIs)
video codec LSIs, video signal processor, VSP, DSP, video data encoding, decoding, H.261, MPEG2, power dissipation, throughtput,
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Discussed here is progress achieved in the development of video codec LSIs.First, the amount of computation for various standards, and signal handling capability (throughput) and power dissipation for video codec LSIs are described. Then, general technologies for improving throughtput are briefly summarized. The paper also reviews three approaches (i.e., video signal processor, building block and monolithic codes) for implementing video codes standards. The second half of the paper discusses various high-throughput technologies developed for programmable Video Signal Processor (VSP) LSIs. A number of VSP LSIs are introduced, including the world's first programmable VSP, developed in February 1987 and a monolithic codec ship, built in February 1993 that is sufficient in itself for the construction of a video encoder for encoding full-CIF data at 30 frames per second. Technologies for reduction of power dissipation while keeping maintaining throughput are also discussed.