Image analysis – Applications – Personnel identification
Reexamination Certificate
2008-07-29
2008-07-29
Le, Brian Q (Department: 2624)
Image analysis
Applications
Personnel identification
C340S005520, C340S005530, C062S003200, C062S003300
Reexamination Certificate
active
07406185
ABSTRACT:
The present invention provides a fingerprint sensing mechanism using a two-dimensional thermoelectric sensor array to capture the thermal image related to the ridges and valleys on the finger, wherein its fabricating method is totally compatible with integrated circuits processing. Using the body temperature of a human being as the stimulation source for biometrics, a temperature difference is produced from a ridge of a fingerprint contacting the thermoelectric sensor and the temperature gradient is converted into an electrical signal. A plurality of thermoelectric sensors arranged in a two-dimensional array forms a fingerprint sensor so as to obtain the electrical signal output of the ridge profile of the fingerprint.
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Cheng Yuan-Wei
Chou Bruce C. S.
Tsai Ming-Lin
Tsou Ching-Fu
Le Brian Q
Ligh Tuning Technology Inc.
Rosenberg , Klein & Lee
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