Method and device for operating a microphone system, especially in a motor vehicle
US6748088B1 · kind B1 · utility
14Cited by
12References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2000 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Nov 20, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for operating a microphone system, particularly in a motor vehicle, detects speech sound in several different physical locations to track a virtual microphone location, which is optimized in relation to a moving speech source. From the evaluation of variables, such as operating time, phase and/or amplitude, the individual microphone locations are virtually weighted, and the audio signals from the microphones are added or otherwise combined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.