Piecewise linear operations on sigma-delta modulated signals

Author

Hidaka, Yuji ; Fujisaka, Hisato ; Sakamoto, Masahiro ; Morisue, Mititada

Author_Institution

Fac. of Inf. Sci., Hiroshima City Univ., Japan

Volume

3

fYear

2002

fDate

2002

Firstpage

983

Abstract

Piecewise linear (PWL) circuits operating on sigma-delta (ΣΔ) modulated signals are proposed. The proposed circuit library includes an absolute circuit, a min/max selector and a negative resistance. As an application of the PWL circuits, a median filter is presented. It is structured with 23% of logic gates consumed by an equivalent filter with 8-bit parallel signal form. It is expected that application of ΣΔ domain signal processing including proposed PWL operations to other modern information processing and communication systems such as neural networks and chaotic communication systems will reduce their hardware cost.

Keywords

chaos; circuit CAD; negative resistance circuits; piecewise linear techniques; sigma-delta modulation; 8 bit; absolute circuit; chaotic communication systems; circuit library; hardware cost; median filter; min/max selector; negative resistance; parallel signal form; piecewise linear operations; sigma-delta modulated signals; Chaotic communication; Circuits; Delta-sigma modulation; Filters; Information processing; Libraries; Logic gates; Neural networks; Piecewise linear techniques; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2002. 9th International Conference on

Print_ISBN

0-7803-7596-3

Type

conf

DOI

10.1109/ICECS.2002.1046414

Filename

1046414