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US 11,955,217 B2Granted
Method and system for brain activity signal-based treatment and/or control of user devices
AssigneeUniversity Health Network
InventorsCésar Marquez Chin, Kathryn Atwell, Milos R. Popovic
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Abstract
A method for characterizing a brain electrical signal comprising forming a temporo-spectral decomposition of the signal to form a plurality of time resolved frequency signal values, associating each instance of the signal value with a predetermined function approximating a neurological signal to form a table of coefficients collectively representative of the brain electrical signal.
Claims15
A system comprising:
- a. at least one input to receive one or more event-related desynchronization (ERD) signals;
- b. at least one output to a functional electrical stimulation (FES) device to carry out FES corresponding to an intended activity (IA);
- and
- c. a controller to communicate with the at least one input and the at least one output, the controller configured to:
- i. to record an ERD signal received from the at least one input, the ERD signal corresponding to an uncharacterized IA for each time value of one or more successive time values,
- ii. for each time value:
- 1. To access one or more ERD templates of coefficients for one or more characterized IA's;
- 2. To update an ERD table for the uncharacterized IA and to compare the updated ERD table with the ERD templates to determine whether the uncharacterized IA is an instance of one of the characterized IA's;
- and
- iii. to initiate a device action instruction on at the at least one output to the FES device after a minimum number of time values necessary to determine whether the uncharacterized IA is an instance of one of the characterized IA's.
7 more elements
A method, comprising:
- a. receiving, from at least one input one or more event-related desynchronization (ERD) signals;
- b. outputting, to at least one output, to a functional electrical stimulation (FES) device to carry out FES corresponding to an intended activity (IA);
- and
- c. recording an ERD signal received from the at least one input, the ERD signal corresponding to an uncharacterized IA for each time value of one or more successive time values,
- d. for each time value:
- 1. Accessing one or more ERD templates of coefficients for one or more characterized IA's;
- 2. Updating an ERD table for the uncharacterized IA and to compare the updated ERD table with the ERD templates to determine whether the uncharacterized IA is an instance of one of the characterized IA's;
- and
- e. initiating a device action instruction on at the at least one output to the FES device after a minimum number of time values necessary to determine whether the uncharacterized IA is an instance of one of the characterized IA's.
6 more elements
Dependencies are inferred from the claim text.