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 engine.

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