Speech recognition
US10356533B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Apr 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/003
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical microphone arrangement comprises: an array of optical microphones (4) on a substrate (8), each of said optical microphones FIG. 2 (4) providing a signal indicative of displacement of a respective membrane (24) as a result of an incoming audible sound; at first processor (12) arranged to receive said signals from said optical microphones (4) and to perform a first processing step on said signals to produce a first output; and a second processor (14) arranged to receive at least one of said signals or said first output; wherein at least said second processor (14) determines presence of at least one element of human speech from said audible sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.