Positioning system based on visible light communications
US10250328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Mar 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A position tracking system includes one or more beacon transmitters and one or more beacon receiver systems configured to be disposed on an object. Each of the one or more beacon receiver systems includes one or more photodetectors configured to receive signals from the one or more beacon transmitters, and an analog-to-digital convertor to convert analog signals received by the one or more photodetectors to digital signals. Each of the one or more beacon receiver systems also includes a memory and a processor configured to execute instructions stored on the memory. The instructions includes receiving signals collected by the one or more photodetectors, converting the received signals to digital signals, and processing the digital signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.