Microphone position and speech level sensor
US7457644B1 · kind B1 · utility
6Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2006 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Nov 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6058
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Improper microphone position and speech level on a telephone headset is sensed by comparison of a speech envelope to multiple signal threshold levels. A first threshold is used to determine whether a headset user is talking. A second threshold is used to determine whether a signal level at the microphone is sufficiently strong for proper communication. An indicator is activated when the user is talking and the signal level is too weak. Typically, a weak signal is caused by a mispositioned microphone or a user talking too softly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.