Devices, systems, and methods for directional antennas that protect sensitive zones
US11677165B2 · kind B2 · utility
0Cited by
11References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2021 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Aug 19, 2041 |
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.