DEVICE TO DEVICE SIGNALING IN WIRELESS ENERGY TRANSFER SYSTEMS

摘要

Described herein are improved configurations for wireless energy transfer. System elements of a wireless energy transfer system may pair in-band and out-of-band communication channels by exchanging related information. Energy transfer signals may be modulated according to defined waveforms. Waveform characteristics may be transmitted using an out-of-band communication channel. A system element that receives both the waveform and the waveform characteristics may verify that they correspond to the same system element by verifying that the waveform matches the waveform characteristics.

主权项

1. A method for in-band communication in a wireless energy transfer system comprising a source and a receiving device, the method comprising:
receiving an energy transfer signal from the source; identifying characteristics of the modulations on the energy transfer signal; determining a coupling factor between the source and the device based on the characteristics; determining modulation levels for transmitting in-band communication based on the determined coupling factor; and modulating an impedance of the device according to the modulation levels.