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A circuit model of hair-cell transduction for temporal processing and auditory feature extraction

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3 Author(s)
Kumar, N. ; Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA ; Cauwenberghs, G. ; Andreou, A.G.

We present a novel low-power circuit for level crossing interval measurements on continuous-time auditory signals, as obtained from the outputs of an analog cochlear filter bank. The circuit achieves immediate response for a given signal in the audio frequency range. Experimental results from a fabricated array of 9 level crossing transducers demonstrate frequency-to-voltage conversion over a range covering the audio band, with less than 120 μW of power dissipated per cell from a 5 V supply

Published in:

Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on  (Volume:3 )

Date of Conference:

12-15 May 1996