Data transfer system and associated management method
US9256820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2012 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Jul 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0213
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for managing a data transfer system includes recovering energy at peripheral devices, and wireless transfer recovered energy to a base by synchronizing RF signals transmitted by double-loop antennas. Synchronizing includes implementing a listening phase to detect a radio-frequency signal transmitted by said central base, and either sending an RF signal that is synchronous with the detected signal or transmitting a signal at a predetermined frequency depending on whether an RF signal is detected at the base. The method includes, in response to receiving a signal from the peripheral device at that frequency, causing the base to recover the received signal and to re-transmit at the predetermined frequency to the peripheral devices. This signal synchronization enables simultaneous energy transfer from peripheral devices to the central base while avoiding mutually destructive effects between said signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.