Systems and methods for increasing control using a neural signal
Inventors
YOO, Peter Eli • Bennett, James • OPIE, Nicholas Lachlan
Assignees
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Publication Number
US-12032741-B2
Publication Date
2024-07-09
Expiration Date
Abstract
Systems and methods for a brain-computer interface (BCI) to increase a number of degrees of freedom (DOF) of one or more neural signals that are used to interact with the BCI.
Core Innovation
The invention controls a brain computer interface by providing a visual display to an individual that includes a timing indicator, an initial reference point, and a first identified cue point associated with a first command. The cue point is spaced along a path at a first distance from the initial reference point, and the visual display shows the timing indicator moving along the path starting at the initial reference point and ending after a path length.
The time of movement of the timing indicator over the first distance defines a first duration time used to establish a review window for a monitoring signal. A monitoring signal is obtained while the visual display is presented, and a first review portion of the monitoring signal is established starting at an initial time corresponding to when the timing indicator is at the initial reference point and ending after the first duration time.
The first review portion is assessed for a first evidence signal occurring within the review portion, and the first command is issued if the first evidence signal matches a first predetermined signal pattern. In an associated system, a control system selects an evidence signal from the monitoring signal, evaluates it for a first predetermined signal pattern occurring after the first duration time from a start of the evidence signal, and generates a first confirmation signal only upon identifying the first predetermined signal pattern.
Claims Coverage
The provided material identifies two independent claims. The inventive features cover cue-indicated timing windows for assessing monitoring signals for evidence signals matching predetermined signal patterns, and a system that evaluates selected evidence portions and generates a confirmation signal only when the predetermined pattern is identified.
Cue-indicated timing window for evidence-signal assessment and command issuance
providing a visual display to an individual with a timing indicator, an initial reference point, and a first identified cue point associated with a first command; obtaining a monitoring signal while displaying the visual display; establishing a first review portion of the monitoring signal based on an initial time when the timing indicator is at the initial reference point and ending after a first duration time; assessing the first review portion for a first evidence signal occurring within the first review portion; and issuing the first command if the first evidence signal matches a first predetermined signal pattern.
Cue-indicated evidence selection, predetermined-pattern evaluation, and confirmation signal generation
a control system configured to select an evidence signal from the monitoring signal by selecting a portion of the monitoring signal starting at when the timing indicator is at the initial reference point; evaluate the evidence signal for a first predetermined signal pattern occurring after the first duration time from a start of the evidence signal; and generate a first confirmation signal only upon identifying the first predetermined signal pattern during evaluating the evidence signal, where the first confirmation signal confirms selection of the first control command by the individual.
Across the independent claims, the invention uses a timing-indicator visual display with an initial reference point and cue point(s) to define timing-based portions of a monitoring signal, evaluates those portions for evidence signals against predetermined signal patterns, and outputs control by issuing a command and generating a confirmation signal only upon identifying the predetermined signal pattern.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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