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专利名称：Voice response unit
发明人：Sedat I. Gokcen,Roy V. Grubbe,Robert J.
Perdue
申请号：US07/500336申请日：19900328公开号：US05125024A公开日：19920623
摘要：A voice response unit for transmitting voice prompt messages to customers andfor receiving messages generated by customers in response to the voice promptmessage. The unit has a speech recognizer for recognizing customer commands used tocontrol operation of the voice response unit. Apparatus interconnects a voice decoderand voice recorder with a telephone line to transmit a generated voice prompt messageand to recieve a customer message in response thereto from a calling customer coupledwith the telephone line. The apparatus is also coupled with the speech recognizer andresponds to receipt of a customer command combined with a portion of the transmittedvoice prompt message reflected from the telephone line by cancelling the reflectedvoice prompt message with the transmitted voice prompt message thereby enabling thespeech recognizer to respond to the customer command during transmission of thevoice prompt message and interrupt the voice prompt message.
申请人：AT&T BELL LABORATORIES
代理人：D. A. Marshall
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