1. 1 Final Presentation Optical Simulation System for Brain Waves Detection & Measurements המעבדה למערכות ספרתיות מהירות High speed digital systems laboratory הטכניון - מכון טכנולוגי לישראל הפקולטה להנדסת חשמל Technion - Israel institute of technology department of Electrical Engineering Presenters: Tomer Zilbershtein 038308227 Shahar Porat 025137258 Supervised by: Yivgeny Rivkin Winter Semester 2002

2. 2 Short Description A program, which has a graphical user interface that, allows the user to change different pictures in different sizes and in different frequencies. While changing pictures, the system will generate a synchronized pulse signal to another device, which examines the brain signals. The system main purpose is to check eye vision.

3. 3 Block diagram

4. 4 Technical Specification 21 inch monitor Angle resolution of line: 5 minutes in distance of 2 meter. Synchronize resolution: at most 1mSec. The External Stimulator Coupler requires TTL level signal of at least 50 uS duration (>3.5V). The trigger signal must return to the low level before the end of a sweep (256 mS).

5. 5 Hardware Requirements Power Supply: Vcc (5V) Input: RGB Output: BNC Data Rate: 20 pulse per second.

6. 6 Implementation Graphical User Interface: using VB. Output signal through hardware, based on information from the screen (RGB). Picture A: Red line Picture B: Blue line

7. 7 Scheme

8. 8 State Machine

9. 9 Video card signal VsyncRed line

10. 10 Output signal Measured with 1Mohm probe

11. 11 Program Flow