Title :
Design of a reduced KII set and network in analog VLSI
Author :
Xu, Dongming ; Deng, Liping ; Harris, John G. ; Principe, Jose C.
Author_Institution :
Computational NeuroEngineering Lab., Florida Univ., Gainesville, FL, USA
Abstract :
This paper focuses on the analog VLSI design of a reduced KII set and network, which are basic building blocks in the computational model of the olfactory cortex proposed by Walter Freeman. Previous implementation issues were discussed in 2001, but this paper will present recent developments in the circuit design of individual blocks in a reduced KII set as well as a system architecture for the KII network. The coupling coefficients are built into the chip and the shape of the nonlinear block is controlled externally. To improve the efficiency of the nonlinear block and to reduce the problem of massive interconnections in the KII network, a mixed-signal design to multiplex nonlinear blocks is proposed. Simulation results and chip measurement are presented for the reduced KII set.
Keywords :
VLSI; analogue processing circuits; mixed analogue-digital integrated circuits; neural chips; analog VLSI; chip measurement; circuit design; computational model; coupling coefficients; efficiency; mixed-signal design; nonlinear blocks; olfactory cortex; reduced KII set; system architecture; Analog computers; Brain modeling; Circuit synthesis; Computational modeling; Computer architecture; Computer networks; Coupling circuits; Olfactory; Shape control; Very large scale integration;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1206443
