Communication in a wireless power transmission system
1 Assignment
0 Petitions
Accused Products
Abstract
A power transmitting unit receives, from a power receiving unit, a first out-of-band communication signal identifying the power receiving unit as being available to receive wireless power. The power transmitting unit transmits, to the power receiving unit, a second out-of-band communication signal including a request to transfer useful amounts of wireless power and receives a third out-of-band communication signal including first information about power transfer capability of the power receiving unit. The power transmitting unit transmits, to the power receiving unit, a fourth out-of-band communication signal including second information about power transfer capability of the power transmitting unit, and initiates transmission of the useful amounts of wireless power to the power receiving unit by verifying compatibility of the power transfer capability of the power transmitting unit and the power receiving unit based on the first information and the second information.
97 Citations
38 Claims
-
1-18. -18. (canceled)
-
19. A method comprising:
-
receiving, by a power transmitting unit, from a power receiving unit, a first out-of-band communication signal identifying the power receiving unit as being available to receive wireless power, wherein (a) the power transmitting unit comprises (i) a source resonator including at least one inductor and at least one capacitor and configured to resonate at a resonant frequency and (ii) source power and control circuitry coupled to the source resonator and configured to control transfer of the wireless power by the source resonator and (b) the power receiving unit comprises (i) a device resonator including at least one inductor and at least one capacitor and configured to resonate at a substantially similar resonant frequency as the source resonator to receive the wireless power and (ii) device power and control circuitry coupled to the device resonator and configured to communicate with the source power and control circuitry; transmitting, by the power transmitting unit, to the power receiving unit, a second out-of-band communication signal including a request to transfer useful amounts of wireless power from the power transmitting unit to the power receiving unit using a wireless power transfer channel between the source resonator and the device resonator; receiving, by the power transmitting unit, from the power receiving unit, a third out-of-band communication signal including first information about power transfer capability of the power receiving unit; transmitting, by the power transmitting unit, to the power receiving unit, a fourth out-of-band communication signal including second information about power transfer capability of the power transmitting unit; and initiating, by the power transmitting unit, transmission of the useful amounts of wireless power to the power receiving unit by verifying compatibility of the power transfer capability of the power transmitting unit and the power receiving unit based on the first information and the second information. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
-
Specification