Registers – Systems controlled by data bearing records – Banking systems
Patent
1989-10-12
1992-03-10
Pitts, Harold
Registers
Systems controlled by data bearing records
Banking systems
235457, 382 4, G06F 1530
Patent
active
050951947
ABSTRACT:
A holographic credit card that uses a matched optical filter to store in form of a hologram a unique identification such as a fingerprint of the authorized user, a source of coherent light that provides the illumination, and the input element in the approval device for providing the angle-invariance, possessing the form of the transparent window, against which the user places and rotates the same fingerprint, and the registering device for registering the correlation optical signal between the stored fingerprint and presented fingerprint to generate a signal to activate the device when, and only if, a positive correlation exists between the presented and the registered fingerprints. A two-stage holographic credit card using the "generalized matched optical filter", wherein the additional information for authorization is stored in the reference beam during the preparation of the said filter, the angular invariance is provided by the said means and the means of second-stage approvement, utilizing the existing banks communication lines, are also provided. A three-stage holographic credit card, using the "generalized matched optical filter", wherein the additional information for verification is stored in the reference beam during the preparation of the said filter, the angular invariance is provided by the said means, the means for bank's computer approving procedures, including the automatic feedback are provided, and the means of additional second-stage optical comparison are also supplied.
REFERENCES:
patent: 3716301 (1973-02-01), Caulfield
patent: 4837843 (1989-06-01), Owechko
patent: 4860253 (1989-08-01), Owechko
patent: 4876725 (1989-10-01), Tomko
patent: 4961615 (1990-10-01), Owechko et al.
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