Patent
1995-02-13
1996-03-12
MacDonald, Allen R.
395 284, 395 255, G10L 900
Patent
active
054993180
ABSTRACT:
A method and an apparatus provide safe access control without the need for supplementary devices. By entering audible words or sounds during a playing of a text of a recorded announcement, a first personal access code based on both the audible uttering and the timing of the audible uttering is generated and stored for authorized users. Subsequently, a second personal access code is generated in the same way when access is sought by a subsequent user seeking access to the facility. The second personal access code is compared with the first personal access code. If the codes correspond in both terms of the audible uttering and the timing of the audible uttering, access is permitted. High security is provided which prevents unauthorized use. The apparatus has a low cost and a low complexity, because no supplementary devices are necessary.
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Ackermann Uwe
Dvorak Susanne
Hormann Thomas
Kopp Dieter
ALCATEL N.V.
MacDonald Allen R.
Sartori Michael A.
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