Directional microphone system
US6137887A · kind A · utility
55Cited by
2References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1997 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Sep 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multiple-microphone actuation control system using direction-sensitive microphones turns ON microphones only if a talker's speech originates from within a specified "acceptance angle" in front of the microphones. Additionally, the invention automatically identifies which microphone best "hears" the talker, and only turns ON one microphone per talker, while allowing several microphones to turn ON simultaneously for several talkers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.