Analogue VLSI implementations of two dimensional, nonlinear, active cochlea models

Hamilton, Tara Julia, Tapson, Jonathan, Jin, Craig and Van Schaik, Andre (2008). Analogue VLSI implementations of two dimensional, nonlinear, active cochlea models. In: 2008 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2008. 2008 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2008, Baltimore, MD, (153-156). 20 - 22 November 2008. doi:10.1109/BIOCAS.2008.4696897


Author Hamilton, Tara Julia
Tapson, Jonathan
Jin, Craig
Van Schaik, Andre
Title of paper Analogue VLSI implementations of two dimensional, nonlinear, active cochlea models
Conference name 2008 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2008
Conference location Baltimore, MD
Conference dates 20 - 22 November 2008
Proceedings title 2008 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2008
Series 2008 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2008
Place of Publication Piscataway NJ, United States
Publisher I E E E
Publication Year 2008
Year available 2008
Sub-type Fully published paper
DOI 10.1109/BIOCAS.2008.4696897
ISBN 9781424428793
9781424428786
Start page 153
End page 156
Total pages 4
Language eng
Abstract/Summary This paper presents results from integrated circuit (IC) implementations of the active, nonlinear, two dimensional (2D) silicon cochlea. It begins by developing an active, 2D cochlea model which is based on the idea that the cochlear amplifier (CA) has dynamics governed by the Hopf equation. The realisation of the active 2D model leads to several hardware implementations that are based on two slightly different but equivalent approaches. The first implementation is called Automatic Quality Factor Control (AQC) which has the dynamics of a system that is governed by the Hopf equation and represents a type of parametric amplification. The second approach is based on implicitly modelling the Hopf equation as a Hopf oscillator. Together this work provides the foundations for a silicon cochlea that can be used to better understand the biological cochlea as well as explore higher auditory centres.
Subjects 2204 Religion and Religious Studies
2207 Control and Systems Engineering
2208 Electrical and Electronic Engineering
Keyword Auditory modelling
Hopf oscillator
Log-domain circuits
Silicon cochlea
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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