Communications – electrical: acoustic wave systems and devices – Echo systems – Presence or movement only detection
Reexamination Certificate
2005-03-01
2005-03-01
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Echo systems
Presence or movement only detection
C340S552000, C340S566000
Reexamination Certificate
active
06862253
ABSTRACT:
A neural net sonic identification system includes an ultra-sonic emitter and receiver configured to detect characteristics of a subject by detecting reflections of the ultrasonic waves. The sonic reflections are processed by a neural network pattern recognition system that learns to recognize a particular subject and distinguish it from other subjects. The emitter/receiver is continuously optimized for phase, wavelength, spectral, and power frequencies, and the received sound “picture” is written-over the previously stored encrypted image data file for a particular individual, so as to continuously update the processor's retained identification information. In one embodiment, the emitter/receiver comprises a solid-state multi-layer tunable array of piezoelectric emitters and receivers that can be selectively “aimed” in different directions without physically moving by independently varying the wavelength and power of the various emitters/receivers.
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Nalini K. Ratha, Andrew Senior and Ruud M. Bolle “Automated Biometrics”, IBM Thomas J. Watson Research Center.
Blosser Robert L.
Madsen Ronald E.
Blosser Robert L.
Lobo Ian J.
Thorpe North & Western LLP
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