Voice messaging system with voice activated prompt interrupt
US5155760A · kind A · utility
57Cited by
6References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Jun 26, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.