Unforgeable personal identification system
Patent 4993068 Issued on February 12, 1991. Estimated Expiration Date: 
November 27, 2009. 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.
November 27, 2009. 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 3896266 Apparatus and method for cryptographic identity verification Personal authentication system Non-counterfeitable document system Personal identification method Security transaction system for financial data System for permitting access to data field area in IC card for multiple services Patent #: 4853522 InventorsAssigneeApplicationNo. 441573 filed on 11/27/1989US Classes:713/186, Biometric acquisition235/380, Credit or identification card systems340/5.83, Image (Fingerprint, Face)340/5.84, Voice380/30, Public key382/116Using a combination of features (e.g., signature and fingerprint)ExaminersPrimary: Tarcza, Thomas H.Assistant: Cain, David Attorney, Agent or FirmInternational ClassH04K 001/00AbstractAn unforgeable personal identification system for identifying users at remote access control sites. The unforgeable personal identification system generates one-way encrypted versions of physically immutable identification credentials (facial photo, retinal scan, voice and finger prints). These credentials are stored on a portable memory device (credit card size). At a remote access control site, the user presents his portable memory device and the encrypted identification credentials are read. The user then submits physically to inputting of his physical identification characteristics to the remote access control site. Comparison is performed with the credentials obtained from the memory device and with the user's physical identity to determine whether to allow or deny access at the remote site. | |
