Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (9): 93-96,103.

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Design of Reverse Converter for Four-Moduli Set

Lü Xiao-lan  Yao Ruo-he   

  1. School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-04-10 Revised:2012-06-11 Online:2012-09-25 Published:2012-08-01
  • Contact: 姚若河(1961-) ，男，教授，博士生导师，主要从事集成电路系统设计、半导体物理及器件研究． E-mail: phrhyao@scut．edu．cn E-mail:jingling220@126.com
  • About author:吕晓兰(1979-) ，女，博士生，主要从事VLSI 数字信号处理、芯片的设计研究．
  • Supported by:

    国家自然科学基金资助项目( 60776020)

PDF

829

Abstract:

Aiming at large DR ( dynamic range) residue number systems ( RNS) ,a new four-moduli set{ 2n －1,22n + 1,2n + 1,2n －1} is proposed. Then,a high efficiency and parallel conversion algorithm for the residue-tobinary conversion of the new moduli set is realized based on the new Chinese remainder theorem 1,and the corresponding converter circuit is designed. As compared with the common converters using the same 5n-bit DR moduli set,the proposed converter adopts adders as the primitive operators,so that it greatly reduces the hardware requirement and significantly decreases the area and delay,thus increasing the conversion efficiency.

Key words: reverse converter, adder, residue number system, new Chinese remainder theorem