Automated system for identifying authorized system users

Details Automated system for identifying authorized system users Automated system for identifying authorized system users

1994-12-30

1997-11-18

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082534, 379 95, 380 23, 380 25, 341 24, 341 25, H04L 932

Patent

active

056892470

ABSTRACT:
A method and apparatus for identifying authorized users of a secure system. A user of the secure system is prompted to enter a personal identification code which is then received into the secure system. The personal identification code entered by the user is then compared against a list of authorized personal identification codes. The user is identified to be an authorized user of the secure system only if the personal identification code entered by the user is present in the list of authorized personal identification codes. Each personal identification code on the list of authorized personal identification codes is arranged in a personal identification code format that includes a plurality of core digits and a plurality of check digits. A first of the check digits has a value that is dependent upon a first group of two or more core digits, and a second of the check digits has a value that is dependent upon a second group of two or more core digits, the first group of two or more core digits being different from the second group of two or more core digits.

REFERENCES:
patent: 4376279 (1983-03-01), Perlman et al.
patent: 4797920 (1989-01-01), Stein
patent: 4935962 (1990-06-01), Austin
patent: 5083272 (1992-01-01), Walker et al.
patent: 5371767 (1994-12-01), Bocinsky, Jr.
patent: 5509064 (1996-04-01), Welner et al.

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