Pressure sensitive biometric input apparatus

Details Pressure sensitive biometric input apparatus Pressure sensitive biometric input apparatus

1998-06-16

2000-10-17

Oen, William

Measuring and testing

Fluid pressure gauge

Combined

73862046, G01L 700, G01L 300, G01D 700

Patent

active

061314641

ABSTRACT:
The invention discloses a biometric input apparatus for obtaining a high quality image of the finger of a user. The biometric input apparatus has a finger image scanner which in turn has a contact surface where the user places their finger upon prior to scanning, means for obtaining an electronic image of the finger of the user that is placed on the contact surface, and a pressure sensor for detecting the amount of pressure that is applied by the finger of the user to the contact surface. In a preferred embodiment, the finger image scanner also has a logic device that measures the amount of pressure exerted by the finger of the user and compares said pressure to a predetermined threshold pressure value. In a most preferred embodiment the improved finger image scanner further has a feedback loop, wherein the logic device prompts the user to increase or decrease the pressure applied to the contact surface.

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patent: 5635723 (1997-06-01), Fujieda
patent: 5844287 (1998-12-01), Hassan et al.

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