Patent Document ID: 20160367825
Application ID: 15254741
Patent Flag: 0

Claim One:
1. A system comprising: an external controller module comprising: a first dipole antenna configured to: transmit an input signal containing electrical energy to a second dipole antenna through electrical radiative coupling to wirelessly power a passive implantable neural stimulator that houses the second dipole antenna; and one or more circuits configured to: generate the input signal and send the input signal to the first antenna for transmission to the second antenna on the passive implantable neural stimulator such that the passive implantable neural stimulator, solely using the electrical energy contained in the input signal, (i) creates and applies one or more electrical pulses suitable for stimulation of neural tissue, and (ii) monitors the stimulation to generate a current limit feedback signal when a clipping event has occurred in which a characteristic of the one or more electrical pulses had been limited so as to prevent the one or more electrical pulses from exceeding a safety threshold; and in response to the current feedback signal being received, attenuate the input signal so that clipping of the one or more electrical pulses is no longer required to keep the current within the safety threshold.