Appeal No. 96-2635
Application 07/993,050
APPENDED CLAIMS
1. Method of producing a communication or control
signal using the mu wave from the brain of a person, comprising:
monitoring the mu wave from the brain of the person;
producing changes in the mu wave by performing movement
or movement rehearsal by the person of a particular body part or
parts of the person to attenuate the mu wave of the person in a
selected pattern from the value of the mu wave when the person is
neither moving nor thinking of moving;
measuring said mu wave attenuation from the brain of
the person caused by movement or movement rehearsal of said body
part or parts of the person;
converting said measured mu wave attenuation to a
communication or control signal by signal processing the measured
mu wave to obtain a power spectrum and comparing the peak power
spectrum value to a predetermined threshold value.
14. Method comprising:
placing a pair of electrodes substantially over the
motor cortex of a person’s scalp, one on each side of the head;
taking an EEG by measuring a voltage difference signal
between the two electrodes;
taking a Fast Fourier Transform (FFT) of the voltage
difference signal;
obtaining the power spectrum P = *FFT* of the voltage2
difference signal;
comparing the peak value of the power spectrum of the
mu wave in the 8-13 Hz range to a baseline value to determine
whether the person is either (a) neither moving nor thinking of
moving a body part, or (b) either moving or thinking of moving
a body part;
- A1 -
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