Registers – Coded record sensors – Particular sensor structure
Patent
1989-03-05
1991-01-01
Pitts, Harold I.
Registers
Coded record sensors
Particular sensor structure
235461, 235487, G06K 710, G06K 714
Patent
active
049820737
ABSTRACT:
A security document such as a credit card or the like carries an automatically, machine-sensed material adapted to generate reproducible signals unique to such document. The material is arranged randomly along a line-like track and sensed by a scanning head having a transverse sensing slot of much greater length than the track width, whereby reproducibility of the scanning signals is assured. A system for testing the authenticity of such documents includes sensing means for detecting the material of the line-like track and converting it into a corresponding electric signal and a comparator means in which the electric signal is tested as to its identity relative to a signal generated in the same manner during the previous sensing. The electric signal is derived from a verification characteristic of the card which may intrinsic property of the card material.
REFERENCES:
patent: 2849132 (1954-08-01), Orthuber
patent: 3105908 (1963-10-01), Burkhardt
patent: 3279826 (1966-10-01), Rudershausen
patent: 3444517 (1969-05-01), Rabinow
patent: 3468046 (1969-09-01), Makishima
patent: 3502851 (1970-03-01), Kakimoto
patent: 3636318 (1972-01-01), Lindstrom et al.
patent: 3763356 (1973-10-01), Berler
patent: 3790754 (1974-02-01), Black
patent: 3793600 (1974-02-01), Grosbard
patent: 3869082 (1975-03-01), Ludin
patent: 3876865 (1975-04-01), Bliss
patent: 3919447 (1975-11-01), Kilmir
patent: 3946203 (1976-03-01), Hecht
patent: 3976973 (1976-08-01), Martin et al.
patent: 4013894 (1977-03-01), Foote et al.
patent: 4025759 (1977-05-01), Scheffel
patent: 4034211 (1977-07-01), Horst et al.
patent: 4041279 (1977-08-01), Foote
patent: 4075384 (1978-02-01), Suzuki
patent: 4114032 (1978-09-01), Brosow et al.
patent: 4132350 (1979-01-01), Kubota
patent: 4135031 (1979-01-01), Akashi
patent: 4171868 (1979-10-01), Jung et al.
patent: 4230938 (1980-10-01), Margolin
patent: 4423415 (1983-12-01), Goldman
patent: 4450348 (1984-05-01), Stockburger et al.
Hoefs and Britt Method of Detecting Document Skew, IBM T.D.B. vol. 7, No. 6, p. 467, Nov. 1984.
GAO Gesellschaft fur Automation und Organisation mbH
Pitts Harold I.
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