Title :
A silicon model of an auditory neural representation of spectral shape
Author_Institution :
California Inst. of Technol., Pasadena, CA, USA
fDate :
5/1/1991 12:00:00 AM
Abstract :
An analog integrated circuit that implements an auditory neural representation of spectral shape is described. The circuit contains silicon models of the cochlea, inner hair cells, spiral ganglion cells, and the neurons that compute an amplitude-invariant representation of spectral shape. The chip uses the temporal information in each silicon auditory nerve fiber to compute this final representation. The chip was fabricated and fully tested. Data comparing the silicon auditory nerve representation and the final representation are presented. The 9000-transistor chip computes all outputs in real time using analog continuous-time processing
Keywords :
bioelectric potentials; correlators; ear; hearing; linear integrated circuits; monolithic integrated circuits; neural nets; neurophysiology; physiological models; real-time systems; Si chip model; amplitude-invariant representation; analog continuous-time processing; analog integrated circuit; auditory nerve fiber; auditory neural representation; cochlea; inner hair cells; neurons; real time; spectral shape; spiral ganglion cells; temporal information; Analog computers; Analog integrated circuits; Auditory system; Biology computing; Biomembranes; Circuit testing; Hair; Signal processing algorithms; Silicon; Spectral shape;
Journal_Title :
Solid-State Circuits, IEEE Journal of
