A 2-Dimensional active cochlear model for analog VLSI implementation

Author

Shiraishi, Hisako ; Van Schaik, André

Author_Institution

Sch. of Electr. & Inf. Eng., Sydney Univ., NSW, Australia

Volume

4

fYear

2004

fDate

23-26 May 2004

Abstract

In this paper an active cochlear model for analogue VLSI implementation is proposed. The model incorporates the effect of the outer hair cells in the living cochlea, which control the quality factor of the basilar membrane filters. The outer hair cells are incorporated as an extra voltage source in series with the basilar membrane resonator. Its value saturates as the input signal becomes larger, making the behaviour rather closer to that of a passive model. The simulation results show this nonlinear phenomenon, which is also seen in the living cochlea.

Keywords

Q-factor; VLSI; analogue integrated circuits; biomedical electronics; biomembranes; ear; filters; integrated circuit modelling; living systems; physiological models; resonators; 2Dimensional active cochlear model; analog VLSI implementation; basilar membrane filters; basilar membrane resonator; living cochlea; nonlinear phenomenon; outer hair cells; passive model; quality factor; two dimensional active cochlear model; very large scale integration; voltage source; Acceleration; Australia; Biomembranes; Capacitors; Hair; Laplace equations; Q factor; Resistors; Very large scale integration; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on

Print_ISBN

0-7803-8251-X

Type

conf

DOI

10.1109/ISCAS.2004.1329156

Filename

1329156