Person identification apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 31, 1993
Grant Date -
N/A
app pub date -
Oct 7, 1991
filing date -
Oct 11, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and a method for identifying a person by making use of his fingerprint. The uneven fingerprint surface of a finger is scanned by a laser beam through a transparent plate. The distance between positions of the surface of the transparent plate serving as a reference surface of reflection and of the uneven surface of the fingerprint is detected as a deviation value due to the scanning. Pattern information obtained from the deviation value is indicative of undulation of the uneven surface of the fingerprint. The pattern information is collated with registered fingerprint data so as to determine whether or not the person whose fingerprint has been detected is registered or not.
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Family
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