Standard Signals are covered by the following Timestamps:

0:00 - Standard Signals
0:39 - Unit Impulse Signal
4:52 - Unit Step Signal
8:14 - Unit Ramp Signal
9:38 - Unit Parabolic Signal
11:12 - Relations Between Impulse & Step & Ramp & Parabolic Signals
12:07 - Signum Function
14:18 - Rectangular Pulse
18:50 - Sinc Function and Sampling Function