A CMOS Stochastic Associative Processor Using PWM Chaotic Signals

Toshio YAMANAKA  Takashi MORIE  Makoto NAGATA  Atsushi IWATA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E84-C   No.12   pp.1723-1729
Publication Date: 2001/12/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Integrated Systems with New Concepts)
Category: 
Keyword: 
pulse-width modulation,  PWM,  chaotic signals,  stochastic association,  

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Summary: 
The concept of stochastic association has originally been proposed in relation to single-electron devices having stochastic behavior due to quantum effects. Stochastic association is one of the promising concepts for future VLSI systems that exceed the conventional digital systems based on deterministic operation. This paper proposes a CMOS stochastic associative processor using PWM (pulse-width modulation) chaotic signals. The processor stochastically extracts one of the stored binary patterns depending on the order of similarity to the input. We confirms stochastic associative processing operation by experiments for digit pattern association using the CMOS test chip.