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Systems and methods for biometric identification using the acoustic properties of the ear canal

Patent ·
OSTI ID:871746
 [1];  [1]
  1. Albuquerque, NM
+ Show Author Affiliations

The present invention teaches systems and methods for verifying or recognizing a person's identity based on measurements of the acoustic response of the individual's ear canal. The system comprises an acoustic emission device, which emits an acoustic source signal s(t), designated by a computer, into the ear canal of an individual, and an acoustic response detection device, which detects the acoustic response signal f(t). A computer digitizes the response (detected) signal f(t) and stores the data. Computer-implemented algorithms analyze the response signal f(t) to produce ear-canal feature data. The ear-canal feature data obtained during enrollment is stored on the computer, or some other recording medium, to compare the enrollment data with ear-canal feature data produced in a subsequent access attempt, to determine if the individual has previously been enrolled. The system can also be adapted for remote access applications.

Research Organization:
SANDIA CORP
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
US 5787187
OSTI ID:
871746
Country of Publication:
United States
Language:
English

References (9)

Synthesis and Characterization of Bi 4 Ti 3 O 12 Thin Films by Sol-Gel Processing journal September 1993
Cepstrum Pitch Determination journal February 1967
Effectiveness of linear prediction characteristics of the speech wave for automatic speaker identification and verification journal June 1974
The behavior of the acoustic distortion product, 2 f 1− f 2, from the human ear and its relation to auditory sensitivity journal August 1990
Specification of the geometry of the human ear canal for the prediction of sound‐pressure level distribution journal June 1989
Speech Analysis and Synthesis by Linear Prediction of the Speech Wave journal August 1971
Measurement of the eardrum impedance of human ears journal January 1983
Cepstral analysis technique for automatic speaker verification journal April 1981
Text-independent speaker identification journal October 1994

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Related Subjects

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