60 mW MPEG4 video codec using clustered voltage scaling with variable supply-voltage scheme

Masafumi Takahashi, Mototsugu Hamada, Tsuyoshi Nishikawa, Hideho Arakida, Yoshiaki Tsuboi, Tetsuya Fujita, Fumihiro Hatori, Shinji Mita, Kojirou Suzuki, Akihiko Chiba, Toshihiro Terazawa, Fumihiko Sano, Yoshinori Watanabe, Hiroshi Momose, Kimiyoshi Usami

Research output: Contribution to journalConference articlepeer-review

16 Citations (Scopus)


The Motion Picture Experts Group (MPEG)4 video codec implements essential functions in the MPEG4 committee draft. It consumes 60 mW at 30 MHz, 30% of the power dissipation of a conventional CMOS design. Measured power dissipation is presented. 70% power reduction is achieved by low-power techniques at circuit and architectural levels. Another way to reduce power dissipation is to reduce supply voltage without lower threshold voltage of those circuit clusters where the speed required is much lower than in critical paths. This clustered voltage scaling technique (CVS) reduces power dissipation without degrading chip operating frequency.

Original languageEnglish
Pages (from-to)36-37
Number of pages2
JournalDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Publication statusPublished - 1998
Externally publishedYes
EventProceedings of the 1998 IEEE 45th International Solid-State Circuits Conference, ISSCC - San Francisco, CA, USA
Duration: 1998 Feb 51998 Feb 7

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


Dive into the research topics of '60 mW MPEG4 video codec using clustered voltage scaling with variable supply-voltage scheme'. Together they form a unique fingerprint.

Cite this