Reducing energy consumption of video memory by bit-width compression

Vasily G. Moshnyaga, Koji Inoue, Mizuka Fukagawa

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

A new architectural technique to reduce energy dissipation of video memory is propose. Unlike existing approaches, the technique exploits the pixel correlation in video sequences, dynamically adjusting the memory bit-width to the number of bits changed per pixel. Instead of treating the data bits independently, we group the most significant bits together, activating the corresponding group of bit-lines adaptively to data variation. The method is not restricted to the specific bit-patterns nor depends on the storage phase. It works equally well on read and write accesses, as well as during precharging. Simulation results show that using this method we can reduce the total energy consumption of video memory by 20% without affecting the picture quality.

Original languageEnglish
Pages142-147
Number of pages6
DOIs
Publication statusPublished - Jan 1 2002
EventProceedings of the 2002 International Symposium on Low Power Electronics and Design - Monterey, CA, United States
Duration: Aug 12 2002Aug 14 2002

Other

OtherProceedings of the 2002 International Symposium on Low Power Electronics and Design
CountryUnited States
CityMonterey, CA
Period8/12/028/14/02

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Moshnyaga, V. G., Inoue, K., & Fukagawa, M. (2002). Reducing energy consumption of video memory by bit-width compression. 142-147. Paper presented at Proceedings of the 2002 International Symposium on Low Power Electronics and Design, Monterey, CA, United States. https://doi.org/10.1109/lpe.2002.146727