Automatic microphone detection
US7039193B2 · kind B2 · utility
22Cited by
17References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2001 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Apr 8, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/567
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Whether a microphone is connected to a real-time audio communication system of a computer may be detected by recording an audio sample through the real-time audio communication system, filtering a DC component is filtered out of the audio data, recognizing a pattern in the auto-correlation coefficients of the filtered audio sample, and determining whether a microphone is properly connected to the real-time audio communication system based on the values of the auto-correlation function coefficients and the predetermined values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.