Patent ID: 8280502

Claim:
A system for providing external electrical stimulation and treatment for a disorder by electrically stimulating and treating neurological tissue of a region of a brain, the system comprising: means for generating an amplitude-modulated pulse-width modulation (AMPWM) signal, the AMPWM signal including a high frequency signal component and a low frequency signal component, wherein the high frequency signal component is amplitude-modulated and pulse-width modulated, wherein the high frequency signal component has a sufficiently high frequency to enable the AMPWM signal to penetrate high impedance portions of tissue located between external EEG sensors placed on a scalp and the neurological tissue of the region of the brain being stimulated, wherein the low frequency signal component is of sufficiently low frequency to provide the electrical stimulation and treatment, and wherein the low frequency signal component dynamically varies in frequency over time; and means for transmitting the AMPWM signal from a neurostimulation device to the neurological tissue of the region of the brain being stimulated via the external EEG sensors placed on the scalp.