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.
According to the patent abstract, there were multiple power supply signals at identical frequencies.
( z1 say :ARG0 ( z2 abstract :mod ( z3 patent ) ) :ARG1 ( z4 have-frequency :ARG1 ( z5 signal :ARG0-of ( z6 supply :ARG1 ( z7 power ) ) :quant ( z8 multiple ) ) :ARG2 ( z9 frequency :ARG1-of ( z10 identical ) ) ) )