Reconfigurable biosignal processing architecture
First Claim
1. An implantable biosignal processing system comprising:
- a first processing system comprising an analog signal processor having a plurality of analog signal processing circuits, wherein the first processing system is configured to connect to a lead comprising one or more biosignal sensors for acquiring and processing electrophysiological data of a brain region of a subject; and
a second processing system in communication with the first processing system, the second processing system comprising a digital signal processor having a power management circuit and a plurality of digital signal processing circuits in communication with the power management circuit, wherein the power management circuit selectively activates and/or deactivates digital signal processing circuits according to a treatment mode of the second processing system to generate a set of electrophysiological data characteristics, andwherein each digital signal processing circuit has a data and clock controller configured to adjust a clock signal of the digital signal processing circuit based on at least one characteristic of the set of electrophysiological data characteristics.
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Accused Products
Abstract
Devices, systems, and methods herein relate to processing biosignal data. These systems and methods may obtain sensor data from a plurality of electrodes and may also be used to augment cortical function, treat neurological disease, and provide insight and analysis of biological processes and/or clinical therapeutic outcomes. An implantable biosignal processing system may comprise a lead having at least one biosignal sensor configured to transmit biosignal data based on electrophysiological activity of a subject. A first processing system may be coupled to the biosignal sensor and comprise a plurality of analog signal processing circuits configured to be selectively powered based on a selectable treatment mode. A second processing system in communication with the first processing system and may comprise a plurality of digital signal processing circuits configured to be selectively powered based on the treatment mode. A neurostimulator may stimulate tissue according to the set of biosignal characteristics.
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Citations
30 Claims
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1. An implantable biosignal processing system comprising:
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a first processing system comprising an analog signal processor having a plurality of analog signal processing circuits, wherein the first processing system is configured to connect to a lead comprising one or more biosignal sensors for acquiring and processing electrophysiological data of a brain region of a subject; and a second processing system in communication with the first processing system, the second processing system comprising a digital signal processor having a power management circuit and a plurality of digital signal processing circuits in communication with the power management circuit, wherein the power management circuit selectively activates and/or deactivates digital signal processing circuits according to a treatment mode of the second processing system to generate a set of electrophysiological data characteristics, and wherein each digital signal processing circuit has a data and clock controller configured to adjust a clock signal of the digital signal processing circuit based on at least one characteristic of the set of electrophysiological data characteristics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An implantable biosignal processing system, comprising:
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a lead comprising at least one biosignal sensor configured to be coupled to a subject to sense and transmit biosignal data representing electrophysiological activity of the subject; a first processing system in communication with the lead and configured to acquire the biosignal data from the lead, the first processing system comprising an analog signal processor that has a plurality of analog signal processing circuits configured to be selectively powered to perform different sets of analog processing functions according to a treatment mode; and a second processing system in communication with the first processing system, the second processing system comprising a digital signal processor and a power management circuit in communication with the digital signal processor, wherein; the digital signal processor comprises a plurality of digital signal processing circuits configured to be selectively powered by the power management circuit in accordance with the treatment mode to perform different sets of digital processing functions, and each digital signal processing circuit has an independent data and clock controller configured to adjust a clock rate of the digital signal processing circuit based on a biosignal data volume and the treatment mode, and wherein the powered analog and digital signal processing circuits are configured to serially process the biosignal data to generate a set of biosignal characteristics; and a neurostimulator in communication with the second processing system and configured to stimulate a predetermined region of tissue using the set of biosignal characteristics. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of processing biosignal data, comprising:
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selecting at least one treatment mode from a plurality of treatment modes, wherein each treatment mode corresponds to a different set of signal processing parameters and circuit processing sequences; powering a set of analog signal processing circuits of a first processing system to perform different analog processing functions based on the treatment mode and powering a set of digital signal processing circuits of a second processing system to perform different digital processing functions and processing sequences according to the selected treatment mode; acquiring biosignal data from a lead comprising at least one biosignal sensor; transmitting the acquired biosignal data to the first processing system; processing the biosignal data using the powered analog signal processing circuits; transmitting the processed biosignal data to the second processing system; adjusting clock rates for each of the powered digital signal processing circuits according to the selected treatment mode; generating a set of biosignal characteristics based on the processed biosignal data using the powered digital signal processing circuits; and transmitting the set of biosignal characteristics to a neurostimulator for use by the neurostimulator in determining waveform parameters for stimulating one or more regions of tissue. - View Dependent Claims (28, 29, 30)
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Specification