Security systems based on recording unique identifier for subseq

Details Security systems based on recording unique identifier for subseq Security systems based on recording unique identifier for subseq

1991-11-18

1993-09-21

Pascal, Robert J.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Dictation or transcribing

369 25, 369 28, 369 29, 379 88, 379 89, 379 95, G11B 1900

Patent

active

052474976

ABSTRACT:
In order to enable an authorized user of a secured system to detect unauthorized use of that system, the system records identifying information about the user (e.g., a sample of the user's voice) each time the user uses the system. The system also plays back to the user the information recorded the last time that user used the system. If the user does not recognize the information played back or detects anything else wrong with that information, the user knows that someone else has gained access or at least attempted to gain access to the system by posing as him or her.

REFERENCES:
patent: 4697282 (1987-09-01), Winter et al.
patent: 4761807 (1988-08-01), Matthews et al.
patent: 4998272 (1991-03-01), Hawkins, Jr. et al.
patent: 5008835 (1991-04-01), Jachmann et al.
patent: 5136648 (1992-08-01), Olson et al.

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