Hi Yan!
Yep, welcome. In this forum, it is always best to start a new thread, as old threads may not have th original participants around, or the subject, while tangential, may not be the same. I don't even know what a "quadrature counter IC" is, but you can be sure that someone here does, and they will surly be more than happy to clue you in!
Have fun!
ps, If you haven't seen it, check out the Gallery/Exhibit subforum. The perfect place to show off your projets and inventions.