Image analysis – Applications – Personnel identification
Reexamination Certificate
2005-05-10
2005-05-10
Au, Amelia M. (Department: 2623)
Image analysis
Applications
Personnel identification
C356S071000, C359S837000
Reexamination Certificate
active
06891962
ABSTRACT:
A fingerprint sensor used for a fingerprint recognition system comprises a first prism or prism array including a first surface which a human finger is placed and a second surface; a lamp for irradiating the finger with light; a second prism or prism array for refracting the light which is reflected from the finger and subsequently passes through the second surface in such a way that the light refracted by the second prism or prism array travels along a path closer to a normal to the first surface of the first optical component than a path of light without refraction by the second prism or prism array; and an image sensor for receiving the light refracted by the second prism or prism array and converting fingerprint information for the finger into an electric signal.
REFERENCES:
patent: 3975711 (1976-08-01), McMahon
patent: 5650842 (1997-07-01), Maase et al.
patent: 5796858 (1998-08-01), Zhou et al.
patent: 5859420 (1999-01-01), Borza
patent: 6127674 (2000-10-01), Shinzaki et al.
patent: 6185319 (2001-02-01), Fujiwara
By Shimizu et al., the Transaction of the Inst. of Electronics and Communication Engineers of Japan, vol. J68-D, No. 3, Mar. 1985, pp. 414-415.
By Igaki et al., the Transaction of the Inst. of Electronics and Communication Engineers of Japan, vol. J68-D, No. 3, 1985.
By R.D. Bauguna et al., Sep. 10, 1996, vol. 35, No. 26, Applied Optics.
Kuno Tetsuya
Sugiura Hiroaki
Au Amelia M.
Birch Stewart Kolasch & Birch, LLP.
Kim Charles
Mitsubishi Denki & Kabushiki Kaisha
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