Patent · US Expired

Method and apparatus for access control based on an audible uttering and timing of the audible uttering

US5499318A · kind A · utility

2Cited by

18References

17Claims

0Family size

Assignee

Alcatel N.V. · NL

Inventors

Dieter Kopp · Hemmingen, DE
Thomas Hormann · Bornsteiner Straße, DE
Susanne Dvorak · Asperg, DE
Uwe Ackermann · Delbrück, DE

Key dates

Filing date	Feb 13, 1995
Grant date	Mar 12, 1996
Priority date	—
Expiry date	Feb 13, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH04M1/652
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.