Multi-channel digital microphone
US10212522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2015 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Jan 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a multi-channel digital microphone, comprising: an array pickup unit and a processing unit, the array pickup unit comprises a plurality of pickup modules, arranged in array form, wherein each of the pick-up modules picks up the audio signals of the spatial region component, the array pickup unit converts a plurality of the audio signals of the spatial region component to a plurality of digital signal and outputs it; the pickup unit is connected to the processing unit, configured to extract and denoise the plurality of digital signals. The present invention adds a spatial region based on the time region and frequency region so that a pick-up de-noising process can be done for these received signals from different spatial directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.