18-BIT FLOATING-POINT SIGNAL PROCESSOR VLSI WITH AN ON-CHIP 512W DUAL-PORT RAM.

Hironori Yamauchi, Takao Kaneko, Tsutomu Kobayashi, Atsushi Iwata, Sadayasu Ono

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

A brand-new floating-point digital speech signal processor (DSSP) VLSI, intended for a wide range of applications in speech processing, has been developed. For speech applications, a wide-dynamic-range vector operation that includes FFT and complex arithmetic is necessary in executing a highly-complicated coding algorithm that treats a large amount of windowed data collectively. It is shown at length how the floating-point data format and hardware architecture meet this requirement. The DSSP, which is fabricated using 2. 5 mu m CMOS technology, completes almost all the floating-point operations within a 150-ns machine-cycle.

Original languageEnglish
Pages (from-to)204-207
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Publication statusPublished - 1985 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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