Communication to device through lighting control
US10651936B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2019 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Jun 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems are provided to emit, into an environment of interest, information in the form of modulated optical signals. These optical signals can be provided as illumination from a lighting fixture, display, or other source of environmental illumination. The optical signals can include codes or other information to facilitate location-specific operations of a device that is able to receive the optical signals. This can include receiving information about the location of a light emitter, security credentials or encryption keys, information about services that are available from building automation and/or conferencing systems, or other location-related information. A cellphone or other device receiving such optical signals could then operate to request information related to the received information, to submit commands to control a presentation or conferencing system, to communicate in a secure manner using a received cryptographic key, or to operate in some other way related to location-related information received via optical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.