A CMOS VLSI cochlea

Author

Lyon, Richard F. ; Mead, Carver A.

Author_Institution

Schlumberger Res., Palo Alto, CA, USA

fYear

1988

fDate

11-14 Apr 1988

Firstpage

2172

Abstract

An analog electronic cochlea has been built in CMOS VSLI technology using micropower techniques to achieve the goal of usefulness via realism. The key point of the model and circuits is that a cascade of simple, nearly linear, second-order filter stages with controllable Q parameters suffices to capture the physics of the fluid-dynamic traveling-wave system in the cochlea, including the effects of adaptation and active gain involving the outer hair cells. Measurements on the test chip suggest that the circuit matches both the theory and observations from real cochlea

Keywords

CMOS integrated circuits; VLSI; biomedical electronics; ear; filtering and prediction theory; filters; physiological models; CMOS VLSI cochlea; active gain; adaptation; analog electronic cochlea; controllable Q parameters; filter cascade; fluid-dynamic traveling-wave system; micropower techniques; outer hair cells; second-order filter stages; test chip; Auditory system; CMOS technology; Circuit testing; Damping; Filters; Hair; Nervous system; Semiconductor device modeling; Systems engineering and theory; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Conference_Location

New York, NY

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1988.197063

Filename

197063