Telephonic communications – Audio message storage – retrieval – or synthesis
Patent
1991-06-26
1992-10-13
Dwyer, James L.
Telephonic communications
Audio message storage, retrieval, or synthesis
379 88, 379410, 3701101, H04M 164, H04M 908, H04J 304
Patent
active
051557606
ABSTRACT:
An arrangement providing voice activated prompt interrupt for a voice messaging system. The exemplary apparatus includes a telephone line interface, a memory device, a processor, a prompting device and a recording device. Once a call is established at the interface, the processor causes the prompt to be played and simultaneously the incoming signal to be sampled. An echo estimate is determined, subtracted from the incoming signal and a determination is made if incoming speech is detected. If incoming speech is detected, the prompt is stopped and the buffered incoming signal is directed to the recording device.
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Johnson Mark A.
O'Brien Stephen A.
Wyman Bradley T.
AT&T Bell Laboratories
Dwyer James L.
Johannesen M. B.
Tsang Fan
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