Directional beacon device
US9640044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2014 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Apr 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B5/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A beacon device includes a control circuitry, a window, and a plurality of sets of illumination sources. The window includes a prismatic structure forming a ring from a planar perspective. The prismatic structure defines an inside surface and an outside surface from the planar perspective. The plurality of sets of illumination sources are coupled to the control circuitry. Each set of illumination sources includes a first illumination source disposed proximal to the inside surface of the prismatic structure and includes a second illumination source disposed proximal to the outside surface of the prismatic structure. The control circuitry is to illuminate a first set of the plurality of sets of illumination sources to transmit a signal in a first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.