Systems and methods for electronic sign labels
US10762804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2018 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Mar 2, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for using a rechargeable electronic sign label. Exemplary embodiments include an electronic sign label electrically coupled to a capacitor and an RFID tag. One or more RFID readers are in communication with the RFID tag. The RFID tag is configured to determine when the charge of the capacitor is below a threshold value, and in response transmit a message to the RFID readers. At least one RFID reader transmits a signal to the RFID tag that includes an instructions to charge the capacitor. An antenna of the RFID tag may be electrically coupled to the capacitor to allow the capacitor to charge based on the energy collected by the RFID tag antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.