Patent ID: 6724689
Filing Date: 2004-04-20
Classification: G06F,G07C

Abstract:
An acoustic spectra personal identification system, comprising:(a) transducer means including at least one acoustic wave emitting means and at least one acoustic wave detecting means positioned spaced apart whereby a selected body part may be placed upon said transducer means, bridging and in simultaneous contact with said at least one emitting means and with said at least one detector means; (b) means for monitoring the pressure applied by a said selected body part upon said transducer means; (c) acoustic wave generator means adapted to transmit a selected acoustic wave form signal, encompassing a plurality of frequencies within a 20-100 kHz frequency range, to said at least one acoustic wave emitting means; (d) acoustic wave analyzer means adapted for converting acoustic wave signals received from said detecting means into digital acoustic spectra signals representing the acoustic spectrum of said received acoustic wave signals; (e) recording means for storing digitized acoustic spectra signals; and (f) acoustic spectra comparison means.