U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and apparatus for positively identifying an individual

Patent 4720860 Issued on January 19, 1988. Estimated Expiration Date: Icon_subject January 19, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Inventor: Ehrat

Method and apparatus for synchronizing the ciphering and deciphering of binary-coded messages
Patent #: 4145569
Issued on: 03/20/1979
Inventor: Ehrat

Personal portable terminal for financial transactions
Patent #: 4277837
Issued on: 07/07/1981
Inventor: Stuckert

Method and apparatus for achieving secure password verification
Patent #: 4295039
Issued on: 10/13/1981
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Method and apparatus for secure message transmission for use in electronic funds transfer systems
Patent #: 4302810
Issued on: 11/24/1981
Inventor: Bouricius ,   et al.

System and process for identification of persons requesting access to particular facilities
Patent #: 4471216
Issued on: 09/11/1984
Inventor: Herve

Pocket banking terminal, method and system
Patent #: 4536647
Issued on: 08/20/1985
Inventor: Atalla ,   et al.

End-to-end encryption system and method of operation
Patent #: 4578530
Issued on: 03/25/1986
Inventor: Zeidler

Solid state key for controlling access to computer software
Patent #: 4599489
Issued on: 07/08/1986
Inventor: Cargile

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Inventor

Assignee

Application

No. 06/676626 filed on 11/30/1984

US Classes:

713/184, PIN/password generator device380/28PARTICULAR ALGORITHMIC FUNCTION ENCODING

Examiners

Primary: Cangialosi, Salvatore
Assistant: Lewis, Aaron J.

Attorney, Agent or Firm

International Classes

G06F 21/00 (20060101)
G07C 9/00 (20060101)
G07F 7/10 (20060101)

Abstract

An apparatus for the electronic generation and comparision of non-predictable codes. The appartus of the invention comprises a first mechanism for calculating a first non-predictable code according to a predetermined algorithm, the first mechanism for calculating including a first mechanism for inputting a unique static variable into the predetermined algorithm; a first mechanism for automatically defining a first dynamic variable according to the interval of time in which the first mechanism for inputting is activated, the first mechanism for automatically defining including a mechanism for automatically making the first dynamic variable available to the predetermined algorithm of the first mechanism for calculating; a second mechanism for calculating a second non-predictable code according to the predetermined algorithm, the second mechanism for calculating including a second mechanism for inputting the unique static variable into the predetermined algorithm; a second mechanism for automatically defining a second dynamic variable according to the interval of time in which the second mechanism for inputting is activated, the second mechanism for automatically defining including a mechanism for automatically making the second dynamic variable available to the predetermined algorithm of the second mechanism for calculating; and a mechanism for comparing the first non-predicatable code with the second non-predictable code.

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