Title :
Towards a silicon implementation of the olfactory system
Author :
Tavares, Vitor M Grade ; Principe, Jose C.
Author_Institution :
Florida Univ., FL, USA
Abstract :
Our main interest is the development of a computational efficient VLSI implementation of a highly complex system proposed by Freeman and Yao (1990) to explain chaotic dynamics in the olfactory cortex using discrete time techniques. One of the issues involved with this implementation approach is the offset. This paper presents a simulation of a novel circuit for offset cancellation in switched current circuits. According to the simulation results, this new technique is able to cancel the offset and has a low sensitivity to changes in feedback parameters associated with the delay (z-1) operation
Keywords :
VLSI; adaptive filters; analogue processing circuits; application specific integrated circuits; chemioception; circuit feedback; circuit simulation; content-addressable storage; silicon; switched current circuits; Freeman model; SI circuits; Si; Si implementation; associative memory; chaotic dynamics; computational efficient VLSI implementation; delay operation; discrete time techniques; feedback parameters; gamma filter; offset cancellation; olfactory system; Brain modeling; Chaos; Circuit simulation; Computational efficiency; Computational modeling; Feedback; Olfactory; Silicon; Switching circuits; Very large scale integration;
Conference_Titel :
Electronics, Circuits and Systems, 1998 IEEE International Conference on
Conference_Location :
Lisboa
Print_ISBN :
0-7803-5008-1
DOI :
10.1109/ICECS.1998.814848
