1.

Pulse Amplitude Modulation(PAM)

2.

Pulse Amplitude Demodulation

3.

Pulse-width Modulation (PWM)

4.

Pulse-width Demodulation

5.

Pulse-position modulation (PPM)

6.

Pulse-position Demodulation

7.

Pulse Code Modulation (PCM)

8.

Pulse Code Demodulation