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Ponencia
VLSI implementation of a transconductance mode continuous BAM with on chip learning and dynamic analog memory
(Institute of Electrical and Electronics Engineers, 1991)
In this paper we present a complete VLSI Continuous-Time Bidirectional Associative Memory (BAM). The short term memory (STM) section is implemented using small transconductance four quadrant multipliers, and capacitors for ...
Ponencia
Frequency tuning loop for VCOs
(Institute of Electrical and Electronics Engineers, 1991)
A frequency tuning circuit is introduced for VCOs (voltage-controlled oscillators) so that the final relationship between oscillating frequency and input control voltage is fixed and independent of nonidealities. This ...
Artículo
CMOS OTA-C high-frequency sinusoidal oscillators
(Institute of Electrical and Electronics Engineers, 1991)
Several topology families are given to implement practical CMOS sinusoidal oscillators by using operational transconductance amplifier-capacitor (OTA-C) techniques. Design techniques are proposed taking into account the ...
Ponencia
A Model for VLSI implementation of CNN image processing chips using current-mode techniques
(Institute of Electrical and Electronics Engineers, 1993)
A new Cellular Neural Network model is proposed which allows simpler and faster VLSI implementation than previous models. Current-mode building blocks are presented for the design of CMOS image preprocessing chips (feature ...
Ponencia
A novel CMOS analog neural oscillator cell
(Institute of Electrical and Electronics Engineers, 1989)
A very flexible programmable CMOS analog neural oscillator cell architecture is presented. The proposed neuron circuit architecture is a hysteretic neural-type pulse oscillator. Its implementation consists of a transconductance ...
Ponencia
Very high frequency CMOS OTA-C quadrature oscillators
(Institute of Electrical and Electronics Engineers, 1990)
An approach to the design of high-frequency monolithic voltage-controlled oscillators using operational transconductance amplifiers and capacitors is given. Results from two 3 μm CMOS prototypes are presented. Both frequency ...
Artículo
A CMOS analog adaptive BAM with on-chip learning and weight refreshing
(Institute of Electrical and Electronics Engineers, 1993)
In this paper we will extend the transconductance-mode (T-mode) approach [1] to implement analog continuous-time neural network hardware systems to include on-chip Hebbian learning and on-chip analog weight storage capability. ...
Ponencia
A CMOS Implementation of Fitzhugh-Nagumo Neuron Model
(Institute of Electrical and Electronics Engineers, 1990)
A CMOS circuit is proposed that emulates FitzHugh-Nagumo's differential equations using OTAs, diode connected MOSFETs and capacitors. These equations model the fundamental behavior of biological neuron cells. Fitz- ...