Integrated wireless resonant power charging and communication channel

A power transmitting unit that is communicatively coupled to a target device to which it provides power, the power transmitting unit comprising:

• a power source operable to source alternating current power
• a sending resonant coupling component operable to couple the alternating current power to a coil for wireless power transmission by a non-radiated magnetic field at a target resonant frequency associated with the target device;
• the power transmitting unit configured to dynamically tune the wireless power transmission to the target resonant frequency wherein the target resonant frequency is specified dynamically;
• a token generator that generates and a token for delivery to the target device during a target device registration operation;
• and
• the power transmitting unit operable to authenticate the target device during subsequent power transmission operations based partially on the token.

A method performed by a rechargeable electronic device comprising a rechargeable battery, the method comprising:

• authenticating with a power transmitting unit including receiving a token from the power transmitting unit;
• requesting power transmission by a non-radiated magnetic field from the power transmitting unit;
• receiving power non-radiated magnetic field at the target resonant frequency from the power transmitting unit;
• and
• recharging a rechargeable battery of the rechargeable electronic device.

A method for wirelessly delivering electric power and a communication signal to a target device comprising:

• receiving a request for power from the target device;
• generating alternating current power;
• coupling the alternating current power to a coil to source wireless power transmission by a non-radiated magnetic field at a target resonant frequency to a target device;
• dynamically tuning the wireless power transmission to the target resonant frequency wherein the target resonant frequency is specified dynamically;
• and
• coupling the communication signal to the non-radiated magnetic field.