SYSTEM FOR COMBINING ELECTRICAL WAVEFORMS INTO A COMBINED ELECTRICAL WAVEFORM
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Abstract
A neuromodulation system comprises electrical terminals configured for being respectively coupled to electrodes. The system further comprises modulation output circuitry configured for respectively outputting individual electrical pulse trains in timing channels to the electrical terminals, wherein each of the pulse trains has a modulation pulse, and at least one of the pulse trains has a charge recovery pulse associated with the modulation pulse of the respective pulse train. The neuromodulation system further comprises control circuitry configured for controlling the modulation output circuitry in a manner that sequentially outputs the modulation pulses of the respective pulse trains to a common set of the electrical terminals without an intervening charge recovery pulse, and outputting the charge recovery pulse(s) to the common set of the electrical terminals subsequent to the sequential modulation pulses, thereby creating a combined electrical pulse train at the common set of electrical terminals.
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Citations
21 Claims
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1. (canceled)
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2. A system, comprising:
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a plurality of electrical terminals configured to be electrically connected to a plurality of electrodes, respectively; output circuitry having at least two channels electrically connecting the output circuitry to at least one common electrical terminal from the plurality of electrical terminals, the output circuitry configured to output a first electrical waveform through a first one of the at least two channels to the at least one common electrical terminal and a second electrical waveform through a second one of the least two channels to the at least one common electrical terminal, wherein each of the first and second electrical waveforms has a stimulation phase and at least one of the first and second electrical waveforms has a charge recovery phase; and control circuitry configured to control the output circuitry to combine the first and second electrical waveforms into a combined waveform at the at least one common electrical terminal, including combine the stimulation phases of the first and second electrical waveforms without an intervening charge recovery pulse and subsequently output the charge recovery phase to the at least one common electrical terminal. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system, comprising:
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a plurality of electrical terminals configured to be electrically connected to a plurality of electrodes, respectively; output circuitry having a plurality of channels electrically connecting the output circuitry to at least one common electrical terminal from the plurality of electrical terminals, the output circuitry configured to output a plurality of electrical waveforms through the plurality of channels, respectively, to the at least one common electrical terminal, wherein each of the plurality of waveforms has a stimulation phase and at least one of the plurality of waveforms has a charge recovery phase; and control circuitry configured to control the output circuitry to combine the plurality of electrical waveforms into a combined waveform at the at least one common electrical terminal, including combine the stimulation phases of the plurality of electrical waveforms without an intervening charge recovery pulse and subsequently output the charge recovery phase to the at least one common electrical terminal.
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Specification