Radio frequency charging system
US8446257B2 · kind B2 · utility
1Cited by
19References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jul 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0802
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) charging system is capable of charging an RF device on a display panel to increase charging efficiency. The RF device generates a response signal upon receiving an RF signal. The RF charging system includes an antenna set having a plurality of antennas, a switch unit, an RF module and a microcontroller unit (MCU). The MCU controls the switch unit to select one antenna from the antenna set. The antenna is able to receive the response signal and is used for transmitting the RF signal, thereby charging the RF device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.