Eye-brain interface (EBI) system and method for controlling same

A slave device for measuring gaze position and brain waves, comprising:

• an eye tracker configured to track an eye of a user;
• a brain wave sensor configured to sense brain wave of the user;
• a communication interface configured to conduct communications with a host device;
• and
• a processor configured to control the eye tracker, the brain wave sensor and the communication interface,
• wherein the host device provides an eye-brain calibration (EBC) interface for simultaneously calibrating gaze position and brain waves, the EBC interface comprising a visual object and instructing the user to gaze at the visual object in a particular cognitive state, and
• wherein the processor is configured to, upon receiving a calibration start signal from the host device, obtain the gaze position and brain wave of the user together and transmit the gaze position and the brain wave of the user to the host device,
• wherein the EBC interface is configured to sequentially and/or alternately provide a first visual object instructing the user to view the first visual object in a first cognitive state and a second visual object instructing the user to view the second visual object in a second cognitive state.

A host device controlled based on eye tracking and brain waves, comprising:

• a display configured to display an image;
• a communication interface configured to conduct communications with a slave device;
• and
• a processor configured to control the display and the communication interface,
• wherein the processor is configured to provide an eye-brain calibration (EBC) interface for simultaneously calibrating gaze position and brain waves, the EBC interface comprising a visual object and instructing a user to gaze at the visual object in a particular cognitive state,
• wherein the processor is configured to request and receive the gaze position and brain waves of the user from the slave device, map the visual object with the gaze position of the user, and map the brain wave of the user with the particular cognitive state,
• wherein the EBC interface sequentially and/or alternately provides a first visual object instructing the user to view the first visual object in a first cognitive state and a second visual object instructing the user to view the second visual object in a second cognitive state.