Patent ID: 8788059

Claim:
A neurostimulation system, comprising: a plurality of electrical contacts configured for being in electrical communication with a plurality of electrodes placed adjacent a region of tissue; analog output circuitry configured for outputting electrical pulses to the plurality of electrical contacts in accordance with a pulse pattern; and control circuitry configured for defining the pulse pattern, such that the electrical pulses comprise a sub-threshold, conditioning, pre-pulse outputted to a first one of the electrical contacts, a stimulation pulse outputted to a second different one of the electrical contacts, and a sub-threshold, conditioning, post-pulse outputted to the first one of the electrical contacts, wherein a duration between the sub-threshold, conditioning pre-pulse and the stimulation pulse is such that the region of tissue is rendered less excitable to the stimulation pulse, and the duration between the sub-threshold, conditioning post-pulse and the stimulation pulse is such that the region of tissue is further rendered less excitable to the stimulation pulse.