Bio-phonetic multi-phrase speaker identity verification
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United States of America Patent
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-
May 22, 2007
Grant Date -
Aug 19, 2004
app pub date -
Feb 13, 2003
filing date -
Feb 13, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A speaker identity claim (SIC) utterance is received and recognized. The SIC utterance is compared with a voice profile registered under the SIC, and a first verification decision is based thereon. A first dynamic phrase (FDP) is generated, and a user is prompted to speak same. An FDP utterance is received, and compared with the voice profile registered under the SIC to make a second verification decision. If the second verification decision indicates a high or low confidence level, the speaker identity claim is accepted or rejected, respectively. If the verification decision indicates a medium confidence level, a second dynamic phrase (SDP) is generated, and the user is prompted to speak same. An SDP utterance is received, and compared with the voice profile registered under the SIC to make a third verification decision. The speaker identity claim is accepted or rejected based on the third verification decision.
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