Re: Could someone translate that into English ?
Without seeing the actual circuit to understand if they've come up with a subtle improvement to existing designs, this is likely just the current gen of power circuit that adjusts operating frequency to optimise power efficiency. Effectively the same as in these power bank type devices that take a 3.7-4.2v Li ion cell and output a stable 5v. Older designs use a fixed frequency with varying duty cycle to provide the 5v where the efficiency decreases as the battery voltage drops. Newer designs also vary the frequency as the battery voltage drops which provides better efficiency.
Biting the hand that feeds IT
