Visual light audio transmission system and processing method
US11038589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2020 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | May 5, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/02166
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A visible light audio system is operable to enable free space optical communication of audio signals via transmission of modulated light intensity at a light source to a photo diode being operably engaged with a demodulator and audio output device. Embodiments of the present disclosure enable a plurality of visible light transmitting apparatuses being installed in a commercial or residential dwelling and operably engaged over a network to combine their microphone inputs via spatial, amplitude, spectral, and/or temporal filtering and physical and geometrical modeling methods to separate one or more acoustic sources using a visible light audio system comprising an array of light sources being operable to receive an audio source input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.