Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation
Patent
1992-02-24
1992-11-24
Brown, Thomas W.
Telephonic communications
Audio message storage, retrieval, or synthesis
Multilingual system or operation
379201, 379245, 3701101, H04J 312, H04M 1515, H04M 342
Patent
active
051669714
ABSTRACT:
A method and apparatus for speaker recognition in a telephone switching system. For a speaker recognition in a system particularly fashioned as an ISDN communications system, speech specimens are input into a telephone terminal equipment (T1, T2) and are pre-processed there, being, in particular, sampled with a sampling rate that is greater in comparison to the standard sampling rate. The samples are intermediately stored in the telephone terminal equipment (T1, T2), are read-out with the standard sampling frequency and are transmitted to a switching system (VA) in which the actual speaker recognition (SPR) is carried out.
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patent: 4592045 (1986-05-01), Fundneider
patent: 4763350 (1988-08-01), Immendorfer et al.
patent: 4864301 (1989-09-01), Helferich
patent: 5093855 (1992-03-01), Vollert et al.
"ISDN Network Terminating Equipment", J. M. Griffiths, IEEE Trans. on Commun., vol. COM-30, No. 9, Sep. 1982, pp. 2137-2142.
"ISDN Performance Tradeoffs", W. S. Gifford, IEEE Communications Magazine, vol. 25, No. 12, Dec. 1987, pp. 25-29.
Brown Thomas W.
Siemens Aktiengesellschaft
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