Primary transmission site switching in a multipoint videoconference environment based on human voice
US5991277A · kind A · utility
82Cited by
12References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Apr 9, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2201/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for determining a talk/listen state using voice detection includes receiving an audio sample and detecting whether the audio sample includes voiced sound. The audio sample represents sound measured during a sample time interval. The method further includes deriving an audio level from the audio sample and comparing the audio level to a threshold level. The audio level represents an average power level of the audio sample. The method further includes determining the talk/listen state depending on a relation of the audio level to the threshold level and depending on whether the audio sample includes voiced sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.