1) Select and pass the Small Signal.
2) Integrator - It collect Small quantity and make large one.
3) Lag network - Lag(Negative) is Smaller than Lead(Positive) in sign.
4) De-Emphasis Filter - D is Smaller then P in alphabetical order.
2. High Pass Filter(HPF) - "All are related to Large"
1) Select and pass the Large Signal.
2) Differentiator - It divide Large quantity into small one.
3) Lead network - Lead(Positive) is Larger than Lag(Negative) in sign.
4) Pre-Emphasis Filter - P is Larger than D in alphabetical order.
