InputDynamics' TouchTap™ has been developed in conjunction with the Signal Processing
Department from the University of Cambridge, and various patents have been granted in the
US and other jurisdictions since 2013.
Different areas of a handset have different acoustic fingerprints and therefore produce
different sounds when tapped upon, which can be detected by the TouchTap™ recognition
The TouchTap™ recognition engine uses sophisticated statistical models to isolates taps
from the user by filtering out unwanted noise and vibration, and by compensating for different
tapping styles and variations in environmental conditions. A one-off simple and fast training
routine upon installation is designed to optimize the use of single, double or multiple-tap input
functionality for various locations.
Below are a few examples of use cases enabled by TouchTap™:
DEVICE HELD WITH ONE HAND
Tapping on the back of the handset with the index finger of the "holding hand" enables to:
switch between keypad layouts or between lower/upper case when inputting text;
cycle through selection options when long pressing on the touchscreen;
direct a character in a game to shoot, jump, or other when playing a game;
scroll to next without smearing the screen with finger grease when browsing
documents or pictures;
take pictures and selfies ergonomically single-handed, and so on;
Tapping on the edges or corner of the handset with the index finger of the "free
hand" enables to:
DEVICE HELD WITH BOTH HANDS IN LANDSCAPE
Tapping on the back of the handset with the index fingers or tapping on the top corners with
the thumbs allows to:
achieve extra input functionality when playing a game (the equivalent of the shoulder
buttons on a PS4 controller).
OTHER USE CASES
TouchTap™ also works when the
handset is in your pocket, enabling
you to reject a call or pause the track
you are listening to, for example. It
also enables you to interact with
your handset when wearing gloves.