Other

Bcinet, Inc.

Brain Actuated Technologies

Andrew Junker

Franz Michael Schuette

Christian R Berg

A biosignal-computer-interface apparatus and method. The apparatus includes one or more devices for generating biosignals based on at least one physiological parameter of an individual, and a computer-interface device capable of performing multiple tasks, including converting the biosignals into at least one input signal, establishing a scale encompassing different levels of the input signal, multiplying the input signal into parallel control channels, dividing the scale into multiple zones for each of the parallel control channels, assigning computer commands to each individual zone of the multiple zones, and generating the computer command assigned to at least one of the individual zones if the level of the input signal is within the at least one individual zone. The individual zones can be the same or different among the parallel control channels.

Method and apparatus for using biopotentials for simultaneous multiple control functions in computer systems

An apparatus for controlling a plurality of devices in response to biopotentials produced by gestures made by a user. The apparatus includes a sensor ( ) applied to the user for producing an input signal representing the biopotentials, wherein the input signal changes as a function of chances in the biopotentials. A plurality of bandpass filters ( ) are responsive to the input signal, and each of the filters produces respective frequency signals. A processor ( ) is responsive to the frequency signals from each of the filters and generates control signals in response to gestures made by the user to command operation of a device ( ). A method is also provided that analyzes the high frequency signals with respect to a plurality of gesture models to detect a plurality of gestures being made by the user and then, provides control signals to a device ( ) for controlling the device in response to a plurality of gestures made by the user. The method includes detecting a short eyebrow lift, a long eyebrow lift, a jaw clench, a short eyebrow drop, right and left eye glances and multiple eye blink gestures of the user. In another aspect of the invention, the method provides continuous analog control signals in response to eye gestures of the user.

Brain-body actuated system

A method and apparatus for assisting a user to control a device in response to a combination of electroencephalographic and electromyographic potentials. The user selects a number of reference frequencies in a range of from 0.5 Hz to 45 Hz defining a like number of control signals. A digital lock-in amplifier is used with a moving average time window filter to produce control signals which are presented to the user. Control system responsiveness is controlled by adjusting the lengths of the moving average time windows. A phase-locked loop is closed around each control signal and is used to track the shifting frequencies of the control signals. The user is able to sense and control changes in the magnitude and frequency of the control signals in the control of the device. By sensing the changes in the magnitude and frequency of the control signals, the user is able to learn a combination of mental and/or physical activities for which changes in the electroencephalographic and electromyographic biopotentials are correlated to control of the device.

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Yellow Springs, OH, United States of America

Andrew Junker