Image analysis – Applications – Personnel identification
Reexamination Certificate
2008-01-08
2008-01-08
Chawan, Sheela (Department: 2624)
Image analysis
Applications
Personnel identification
C382S211000, C382S278000, C359S011000, C356S300000
Reexamination Certificate
active
10724552
ABSTRACT:
An authentication system using a correlator that correlates an input with a reference wherein at least one of the input and reference comprises a phase volume mask having structures, preferably points, that are each less than about six microns in size and can have an aspect ratio (AR) greater than 1:1 so as to produce a phase encoded random pattern having millions of combinations in a mask that is as small as one square millimeter. The random pattern can be convolved with a second pattern, such as a biometric pattern, to produce a phase convolved mask. The correlator preferably is a nonlinear joint transform correlator that can use “chirp” encoding to permit the input to be located in a different plane than the reference. The correlator optically Fourier transforms images of the reference and input that are thereafter nonlinearly transformed and inverse Fourier transformed by a processor to determine the presence or absence of a correlation spike indicative of authenticity. A spatial light modulator (SLM) can be used as an input or reference and preferably is a liquid crystal panel having pixels or elements whose phase or grey scale intensity can be selectively controlled by a processor. The SLM can be used to display a biometric pattern, preferably scanned in real time from a person, that is correlated against an input or reference that can comprise a label on a card, a tag, or another object.
REFERENCES:
patent: 4073010 (1978-02-01), Casasent et al.
patent: 4084255 (1978-04-01), Casasent et al.
patent: 4210899 (1980-07-01), Swonger et al.
patent: 4308521 (1981-12-01), Casasent et al.
patent: 4359259 (1982-11-01), Horner et al.
patent: 4429954 (1984-02-01), Caulfield et al.
patent: 4558951 (1985-12-01), Ludman et al.
patent: 4588260 (1986-05-01), Horner
patent: 4651297 (1987-03-01), Schlunt
patent: 4765714 (1988-08-01), Horner et al.
patent: 4813761 (1989-03-01), Davis et al.
patent: 4826285 (1989-05-01), Horner
patent: 4832447 (1989-05-01), Javidi
patent: 4838630 (1989-06-01), Jannson et al.
patent: 4898450 (1990-02-01), Jannson et al.
patent: 4926412 (1990-05-01), Jannson et al.
patent: 4958892 (1990-09-01), Jannson et al.
patent: 4969189 (1990-11-01), Ohta et al.
patent: 5016976 (1991-05-01), Horner et al.
patent: 5018814 (1991-05-01), Jannson et al.
patent: 5024508 (1991-06-01), Horner
patent: 5026131 (1991-06-01), Jannson et al.
patent: 5040140 (1991-08-01), Horner
patent: 5055383 (1991-10-01), Koblinger et al.
patent: 5056039 (1991-10-01), Caulfield
patent: 5067788 (1991-11-01), Jannson et al.
patent: 5073006 (1991-12-01), Horner et al.
patent: 5083219 (1992-01-01), Jannson et al.
patent: 5095194 (1992-03-01), Barbanell
patent: 5111515 (1992-05-01), Javidi
patent: 5119443 (1992-06-01), Javidi et al.
patent: 5132813 (1992-07-01), Caulfield et al.
patent: 5148316 (1992-09-01), Horner et al.
patent: 5153670 (1992-10-01), Jannson et al.
patent: 5193114 (1993-03-01), Moseley
patent: 5221957 (1993-06-01), Jannson et al.
patent: 5230969 (1993-07-01), Savant et al.
patent: 5239595 (1993-08-01), Takemura et al.
patent: 5245404 (1993-09-01), Jannson et al.
patent: 5260826 (1993-11-01), Wu
patent: 5276537 (1994-01-01), Savant et al.
patent: 5276636 (1994-01-01), Cohn
patent: 5278687 (1994-01-01), Jannson et al.
patent: 5293272 (1994-03-01), Jannson et al.
patent: 5305123 (1994-04-01), Sadovnik et al.
patent: 5339305 (1994-08-01), Curtis et al.
patent: 5365354 (1994-11-01), Jannson et al.
patent: 5367579 (1994-11-01), Javidi et al.
patent: 5384221 (1995-01-01), Savant et al.
patent: 5411824 (1995-05-01), Vasudev et al.
patent: 5438439 (1995-08-01), Mok et al.
patent: 5438632 (1995-08-01), Horner
patent: 5461475 (1995-10-01), Lerner et al.
patent: 5467403 (1995-11-01), Fishbine et al.
patent: 5472811 (1995-12-01), Vasudev et al.
patent: 5485277 (1996-01-01), Foster
patent: 5485312 (1996-01-01), Horner et al.
patent: 5493444 (1996-02-01), Khoury et al.
patent: 5497430 (1996-03-01), Sadovnik et al.
patent: 5515184 (1996-05-01), Caulfield et al.
patent: 5534386 (1996-07-01), Peterson et al.
patent: 5572228 (1996-11-01), Manasson et al.
patent: 5598485 (1997-01-01), Kobayashi et al.
patent: 5604634 (1997-02-01), Khoury et al.
patent: 5609939 (1997-03-01), Peterson et al.
patent: 5623552 (1997-04-01), Lane
patent: 5629996 (1997-05-01), Rizkin et al.
patent: 5631754 (1997-05-01), Jannson et al.
patent: 5660181 (1997-08-01), Ho et al.
patent: 5668648 (1997-09-01), Saito et al.
patent: 5712912 (1998-01-01), Tomko et al.
patent: 5721630 (1998-02-01), Horner et al.
patent: 5735988 (1998-04-01), Chau et al.
patent: 5743633 (1998-04-01), Chau et al.
patent: 5764317 (1998-06-01), Sadovnik et al.
patent: 5815124 (1998-09-01), Manasson et al.
patent: 5815597 (1998-09-01), Horner et al.
patent: 5815598 (1998-09-01), Hara et al.
patent: 5835212 (1998-11-01), Kissa et al.
patent: 5838403 (1998-11-01), Jannson et al.
patent: 5841489 (1998-11-01), Yoshida et al.
patent: 5841907 (1998-11-01), Javidi et al.
patent: 5854697 (1998-12-01), Caulfield et al.
patent: 5869822 (1999-02-01), Meadows, II et al.
patent: 5878157 (1999-03-01), Mukohzaka
patent: 5886675 (1999-03-01), Aye et al.
patent: 5892597 (1999-04-01), Iwata et al.
patent: 5903390 (1999-05-01), Kane et al.
patent: 5903648 (1999-05-01), Javidi
patent: 5920058 (1999-07-01), Weber et al.
patent: 5922238 (1999-07-01), Savant et al.
patent: 5926555 (1999-07-01), Ort et al.
patent: 5933515 (1999-08-01), Pu et al.
patent: 5952128 (1999-09-01), Isao et al.
patent: 5956106 (1999-09-01), Peterson et al.
patent: 5959747 (1999-09-01), Psaltis et al.
patent: 6185319 (2001-02-01), Fujiwara
patent: 6229906 (2001-05-01), Pu et al.
patent: 6424729 (2002-07-01), Soon
Jannson Joanna L.
Jannson Tomasz P.
Kostrzewski Andrew A.
Savant Gajendra D.
Chawan Sheela
Physical Optics Corporation
Tachner Leonard
LandOfFree
Authentication system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Authentication system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Authentication system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3952518