Pre-emphasis pulse
I hope you can get a clear image of how the pre-emphasis pulse can significantly reduce the RC delay time through the following animations.
1) Step pulse vs. pre-emphasis pulse
Top: RC line driven by Vin
Middle: Waveform at the mark with a step pulse
Bottom: Waveform at the mark with a pre-emphasis pulse
Animation created by K. Matsuyama

2) Optimum vs. non-optimum
Voltages vs. position (zero indicates the nearest and one indicates the farthest) with pre-emphasis times of Topt X 0.8 (the left most), X 1.0 (center) and X1.2 (the right most)  Created by Matsuyama

3) Voltages vs. position (zero indicates the nearest and one indicates the farthest) after an optimum pre-emphasis time. Wave components with different wave numbers (k) vary at different time scales (exp(- k^2 t). Created by Matsuyama

Charge pump
– Multiple capacitors and diodes connected in series between the input VDD and the output LOAD
– Capacitors driven by anti-phase clock clock alternately
I hope you can get a clear image of how the charge pump gradually increases the voltage from input to output through the following animation.

Animation created by Kawauchi

Video
Animation of operation  
Steady state circuit equation in low frequency operation 
Dynamic model 
Frequency response 
Power efficiency, with physical image
Optimum design 

AC-DC charge pump
   Clocked AC-DC CP
   Modeling of the latched AC-DC charge pump