Sound pickup device and sound pickup method
US10873810B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2019 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Sep 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound pickup method obtains a correlation between a first sound pickup signal to be generated from a first microphone and a second sound pickup signal to be generated from a second microphone, and performs level control of the first sound pickup signal or the second sound pickup signal, according to a ratio of a frequency component of which the correlation exceeds a threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.