Observer Pattern as C++ Component

Tojo is an Indian software engineer now working in Japan.
Now he makes automation software for X-Ray inspection systems for soldering quality inspection of BGA Chips planted on a PCB. He has experience in developing GEM communication protocol stack & simulation software for Semiconductor manufacturing equipments. Few years back, he was working in Ultra sound Medical Imaging domain.
 
Interested in C++, C#, Java & Database technologies.
Loves making C++ and SQL, do unimagined things.
Likes Regular expressions and researching to convert the raw power of Regular Expressions to some easy to use attractive component.
 
He has a 3 year Diploma in Computer Engineering and started professional programming 9 years back.
 
In free time, he likes bicycling, swimming, photography & drawing.
 
He is passionate about open source Software especially Ubuntu & Eclipse