US 11,995,236 B2
Brain-computer interface
Sid Kouider, Paris (FR); Robin Zerafa, Paris (FR); Nelson Steinmetz, Paris (FR); and Nicolas Barascud, Paris (FR)
Assigned to SNAP INC., Santa Monica, CA (US)
Appl. No. 17/758,471
Filed by NextMind SAS, Paris (FR)
PCT Filed Jan. 11, 2021, PCT No. PCT/EP2021/050393
§ 371(c)(1), (2) Date Jul. 7, 2022,
PCT Pub. No. WO2021/140247, PCT Pub. Date Jul. 15, 2021.
Claims priority of provisional application 62/958,072, filed on Jan. 7, 2020.
Prior Publication US 2023/0032492 A1, Feb. 2, 2023
Int. Cl. G06F 3/01 (2006.01); A61B 5/378 (2021.01)
CPC G06F 3/015 (2013.01) [G06F 3/013 (2013.01); A61B 5/378 (2021.01)] 14 Claims
OG exemplary drawing
 
1. A brain computer interface system, comprising:
a display unit for displaying image data, the image data including at least one object, the display unit further outputting a compound visual stimulus corresponding to the at least one object, the compound visual stimulus comprising a first portion with a first characteristic modulation and a first visual property and a second portion with a second characteristic modulation and a second visual property, the second visual property being distinct from the first visual property;
a stimulus generator for generating the compound visual stimulus with the first characteristic modulation and the second characteristic modulation;
a neural signal capture device configured to capture neural signals associated with a user; and
an interfacing device operatively coupled to the neural signal capture device and the stimulus generator, the interfacing device being configured to:
receive the neural signals from the neural signal capture device;
determine a strength of components of the neural signals having a first property associated with the first characteristic modulation and a second property associated with the second characteristic modulation of the compound visual stimulus;
determine the at least one object as an object of focus of the user based on the neural signals, the object of focus being inferred from a first presence of the components of the neural signals having the first property associated with the first characteristic modulation of the compound visual stimulus; and
determine the at least one object as an object of selection by the user based on the neural signals, the object of selection being inferred from a second presence of the components of the neural signals having a property associated with the second characteristic modulation of the visual stimulus.