ForcePhone adds pressure sensitivity to any phone using ultrasonics
Cool idea… Can’t believe a movie made them do that…
Force touch may be a feature exclusive to the latest iPhones, but something like it is now possible on pretty much any phone out there, thanks to research from engineers at the University of Michigan.
It works not by polling sensors in the touchscreen, but through ultrasound. The phone’s speaker emits a sound covering the 18-24 kHz range, well outside what a human can hear — but the device’s microphone can detect it just fine. When the user presses on the screen or squeezes the phone’s body, the character of the sound changes, and the software detects that.
Don’t worry, though — the sound is played at a very low volume, so it won’t bother any dogs or sharp-eared young folks in the area.
“You don’t need a special screen or built-in sensors to do this,” said Kang Shin, professor in the university’s electrical engineering and…
Read the entire article from TechCrunch here: ForcePhone adds pressure sensitivity to any phone using ultrasonics