Title :
An Active 2-D Silicon Cochlea
Author :
Hamilton, T.J. ; Jin, C. ; van Schaik, Andre ; Tapson, J.
Author_Institution :
Univ. of Sydney, Sydney
fDate :
3/1/2008 12:00:00 AM
Abstract :
In this paper, we present an analog integrated circuit design for an active 2-D cochlea and measurement results from a fabricated chip. The design includes a quality factor control loop that incorporates some of the nonlinear behavior exhibited in the real cochlea. This control loop varies the gain and the frequency selectivity of each cochlear resonator based on the amplitude of the input signal.
Keywords :
analogue integrated circuits; auditory evoked potentials; biological fluid dynamics; cellular biophysics; ear; elemental semiconductors; neurophysiology; quality control; silicon; Si; active 2-D silicon cochlea; analog integrated circuit design; biological outer hair cells; cochlear resonator; fluid dynamics; frequency selectivity; input signal amplitude; neuromorphic engineering; nonlinear feedback control; quality factor control loop; Analog integrated circuits; Biological system modeling; Biomembranes; Circuit simulation; Feedback control; Frequency; Low pass filters; Q factor; RLC circuits; Silicon; Log-domain features; neuromnorphic engineering; silicon cochlea;
Journal_Title :
Biomedical Circuits and Systems, IEEE Transactions on
DOI :
10.1109/TBCAS.2008.921602
