Communications: electrical – Digital comparator systems
Patent
1977-01-25
1980-01-15
Yusko, Donald J.
Communications: electrical
Digital comparator systems
283 7, 235494, B42D 1502, G06K 1906, H04Q 900
Patent
active
041841484
ABSTRACT:
There are disclosed in the present application devices and systems for providing proof of identity of a client by the client's ability to select predetermined digits from a multiplicity of digits randomly arranged in a grid of a plurality of sets of digits in which each set consists of several digits. A multiplicity of grids is provided each with a different order and arrangement of digits on a suitable surface so that the client, in order to establish his identity, is required to select the digits from one of the large number of grids. The manner in which the client selects his identifying digits is by being given in advance a positional code from which he determines the correct digits by their locations in the grid. The accuracy of the client's answer is checked against a register listing the client's social security number and an identification of the specific grids together with required identification numbers relating to the specific grids.
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patent: 1556895 (1925-10-01), Ayers
patent: 1813257 (1931-07-01), Rand, Jr.
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patent: 3665162 (1972-05-01), Yamamoto et al.
patent: 3718349 (1973-02-01), Small
patent: 3719801 (1973-03-01), Drexler
patent: 3794813 (1974-02-01), Spetz
IBM Technical Disclosure Bulletin, vol. 13, No. 7, Dec. 1970, pp. 1910, 1911, "Prevention of Unauthorized Use of Credit Card," C. A. Gaston.
Boiteau Maurice R.
ID Code Industries, Inc.
Yusko Donald J.
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