Fingerprint input device and personal authentication system...

Details Fingerprint input device and personal authentication system... Fingerprint input device and personal authentication system...

2004-05-26

2008-03-25

Mariam, Daniel (Department: 2624)

Image analysis

Applications

Personnel identification

Reexamination Certificate

active

07349561

ABSTRACT:
The invention provides a fingerprint input device with a small area and a compact structure, and being manufactured in a simple process, comprising an LED for emitting into a finger a light, an image pickup unit for receiving the light scattered inside the finger, a peripheral circuit unit connected to the image pickup unit1a, a silicon chip1bearing image pickup elements constituting the image pickup unit and the peripheral circuit unit, and a fiber optics plate fixed on the silicon chip, having a surface on which the finger is placed and constituting light transmission portion for transmitting the light, scattered inside the finger placed on the surface to the image pickup element along a direction inclined by a predetermined angle. At least a part of the peripheral circuit unit is formed on the silicon chip opposed to a non-light-transmitting area of the fiber optics plate.

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patent: 07-174947 (1995-07-01), None
patent: 2000-021780 (2000-01-01), None

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