english: They put a smartphone next to a keyboard, and they had people type, and then their goal was to use the vibrations that were created by typing to measure the change in the accelerometer reading to determine what the person had been typing.
non_english: Položili smartfón vedľa klávesnice, na ktorej niekto písal. Ich cieľom bolo zistiť, čo osoba na klávesnici napísala pomocou vibrácií, ktoré vytvorilo klepanie do klávesnice. Acelerometer mal na základe vibrácií zistiť, čo tá osoba napísala.