Devices, systems, and methods for directional antennas that protect sensitive zones
US11114773B2 · kind B2 · utility
2Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Dec 30, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A set of headphones include a zone that is sensitive to electromagnetic radiation, a first earpiece including a first directional antenna operable at a first frequency and having a first radiation pattern radiating away from the zone, and a second earpiece including a second directional antenna operable at the first frequency and having a second radiation pattern radiating away from the zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.