1. Mind Control – Array (Design Report) Trenton Dunn, David Moreland, Sabrina Vellino February 14, 2002

2. Current Design-highlights Differential amplifier Differential amplifier Silver/chloride coated electrodes Silver/chloride coated electrodes Direct coupled inputs Direct coupled inputs

3. Current Design-alternatives Operate IC at low bias point Operate IC at low bias point Signal output feed to filters designed to separate out alpha, beta, and theta frequencies Signal output feed to filters designed to separate out alpha, beta, and theta frequencies

4. Testing Oscilloscope Oscilloscope  Look for FFT spike at 1Hz Beta Beta  Increase caffeine in subject’s system  Promote active thinking Theta Theta  No caffeine intake for 24 hours  Produce drowsiness from Nyquil

5. Testing cont’ Must decipher between the 4 basic brainwave patterns Must decipher between the 4 basic brainwave patterns Multiple amplifiers for use of the helmet for more in-depth experimentation Multiple amplifiers for use of the helmet for more in-depth experimentation

6. Post Testing: Two Possibilities Fix / Re-build Circuit Fix / Re-build Circuit Use Design Current Design Testing Fix / Rebuild Use Design (Main Goal) Testing / Rebuild / Use process for brain wave project.

7. Fix / Re-build Add Notch Filters to External Amplifier. Add Notch Filters to External Amplifier. Re-Design to Increase Gain of Amplifier. Re-Design to Increase Gain of Amplifier. Find new circuit diagram from patents. Find new circuit diagram from patents. Build new circuit. Build new circuit. Repeat testing. Repeat testing.

8. Use Design Use A/D Converter to input to microprocessor Use A/D Converter to input to microprocessor Input Microprocessor signals into computer via USB or Serial Connection. Input Microprocessor signals into computer via USB or Serial Connection. Write HDL or High Language (C++, Java) code for using brain waves.\ Write HDL or High Language (C++, Java) code for using brain waves.\ Create multiple channels for use of brain waves. Create multiple channels for use of brain waves.

9. Thank you and Happy Valentine’s Day!