Telephonic communications – Audio message storage – retrieval – or synthesis – Voice activation or recognition
Patent
1997-10-22
2000-07-11
Tsang, Fan S.
Telephonic communications
Audio message storage, retrieval, or synthesis
Voice activation or recognition
379 8803, 379 8804, 379189, 704246, 704257, H04M 166, H04M 350
Patent
active
060884282
ABSTRACT:
A voice controlled voice-messaging systems permits manipulation of voice messages over the telephone without the need for keypressed commands. Manipulation includes playback of messages, deletion of messages, saving messages, and sending a new message to a recipient from a user-defined list. Access to the messaging system is by spoken password. Voice input also allows the following functions: enrollment of a spoken password; granting or refusing user access to the system based on verification of the user speaking a password; recognition of spoken utterances of "yes" and "no" in response to prompts by the VMS; recognition of "stop" to interrupt and stop a voice message during playback; enrollment of a spoken personal directory of names of potential message recipients; and recognition of names in the spoken personal directory. The invention uses speaker verification, speaker-independent recognition (SIR) of "yes
o", speaker-independent recognition of "stop" during message playback, and speaker-dependent recognition (SDR) of a limited vocabulary of short phrases such as a list of message recipients' names.
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Bladon R. Anthony
Brahm David
Trandal David
Vanderford Jan
Zhang Xiao-Ling
Digital Sound Corporation
Tsang Fan S.
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