A variety of devices could be powered selectively from a single-power source carried on the body via multiple power supply signals at different frequencies, according to the patent abstract.

Can we draw the following conclusion?
An iphone may not be able to be powered from a single-powered source carried on the body via multiple power supply signals at different frequencies.

Select from:
 + Yes;
 + It's impossible to say;
 + No;
It's impossible to say