Active sound control in a lighting system
US10438578B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2018 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Apr 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a lighting system including a luminaire having a lighting device and a sound reduction device. The lighting device includes an illumination output surface, which is at least partially reflective with respect to an audio wave from outside the luminaire. The lighting device also includes an illumination light source configured to generate illumination light for emission through the illumination output surface for illumination of an area. The sound reduction device includes a pick up microphone and an audio output source. The pick up microphone is configured to detect incoming audio waves in a vicinity of the luminaire. The lighting system further includes a circuitry including a sound reduction controller coupled to the pick up microphone and the audio output source of the sound reduction device. The sound reduction controller is configured to operate the audio output source to control sound at least in vicinity of the illuminated area associated with the incoming audio waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.