Ex parte ALTSCHULER et al. - Page 11




          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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