Image analysis – Applications – Personnel identification
Reexamination Certificate
2005-06-28
2005-06-28
Ahmed, Samir (Department: 2623)
Image analysis
Applications
Personnel identification
C340S005530, C340S005830
Reexamination Certificate
active
06912299
ABSTRACT:
When a contact surface6of a finger print input section1is pushed down by a fingertip and the projected portion6bfaces the recessed portion10a, the projected portion6bslides into the recessed portion10aso that the contact surface6is put in a locked state. At this time, a switch9is turned on and sends a signal to a fingerprint detecting portion11. Responsive to the signal, the detecting portion11scans the fingertip on the contact surface6to be converted into a sequence of electric signal and to be stored into a memory. The fingerprint detecting portion11compares a fingerprint with the fingerprint data signal stored in the memory5to identify a fingerprint. With this structure, the pressure imposed by the fingertip onto the fingerprint input section1is kept constant during detection of the fingerprint.
REFERENCES:
patent: 4025748 (1977-05-01), Filip
patent: 4353056 (1982-10-01), Tsikos
patent: 4642433 (1987-02-01), Murata
patent: 5559504 (1996-09-01), Itsumi et al.
patent: 2952212 (1980-12-01), None
patent: 58-201178 (1983-11-01), None
patent: 63-5551 (1988-01-01), None
patent: 64-68894 (1989-03-01), None
Ahmed Samir
NEC Corporation
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