发明名称 Voice messaging system with voice activated prompt interrupt.
摘要 <p>An arrangement providing voice activated prompt interrupt for a voice messaging system. The exemplary apparatus includes a telephone line interface (310), a memory device, a processor (320), a prompting device (340) and a recording device (370). 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. &lt;IMAGE&gt;</p>
申请公布号 EP0522725(A2) 申请公布日期 1993.01.13
申请号 EP19920305576 申请日期 1992.06.18
申请人 AMERICAN TELEPHONE AND TELEGRAPH COMPANY 发明人 JOHNSON, MARK ALAN;O'BRIEN, STEPHEN ANTHONY;WYMAN, BRADLEY THOMAS
分类号 H04M1/64;H04M1/253;H04M1/65;H04M3/00;H04M3/533;H04Q3/42;H04Q11/04 主分类号 H04M1/64
代理机构 代理人
主权项
地址