Fingerprint sensor device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 3, 2000
Grant Date -
N/A
app pub date -
Nov 20, 1997
filing date -
Mar 28, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The fingerprint sensor device comprises a thin flat transparent support (10) having an outside face for receiving the end of a finger and carrying on an inside face a two-dimensional matrix of photosensitive elements separated by strip-shaped gaps, and a substrate (14) carrying on an inside face light sources for directing light through the support via the strip-shaped gaps and substantially orthogonally to said outside face. The photosensitive elements are protected from the light coming from the sources so as to deliver an output signal only in response to light that has been back-scattered towards the outside face of the support.
First Claim
Family
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Cited Art Landscape
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