Design methodology of ultra low-power MPEG4 codec core exploiting voltage scaling techniques

  • Authors:
  • Kimiyoshi Usami;Mutsunori Igarashi;Takashi Ishikawa;Masahiro Kanazawa;Masafumi Takahashi;Mototsugu Hamada;Hideho Arakida;Toshihiro Terazawa;Tadahiro Kuroda

  • Affiliations:
  • Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan;Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan;Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan;Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan;Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan;Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan;Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan;Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan;Toshiba Corporation, 580-1, Horikawa-cho, Saiwai-ku, Kawasaki 210, Japan

  • Venue:
  • DAC '98 Proceedings of the 35th annual Design Automation Conference
  • Year:
  • 1998

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Abstract

This paper describes a fully automated low-power design methodology in which three different voltage-scaling techniques are combined together. Supply voltage is scaled globally, selectively, and adaptively while keeping the performance. This methodology enabled us to design an MPEG4 codec core with 58% less power than the original in three week turn-around-time.