Syntax in class defination while inherriting another class

#include "IMyIntData.h"

class MyIntData : public CPMUnknown<IMyIntData> http://forums.codeguru.com/images/icons/icon5.png
{

I need to know what this syntax means (including MyIntData in angular brackets after parent class name) where IMyIntData is the Interface from where MyIntData is derived.

C++ Templates