Method and Apparatus for Classifying Touch Events on a Touch Sensitive Surface
AssigneeCarnegie Mellon University
InventorsChris Harrison, Julia Schwarz, Scott E. Hudson
Life of this patent
Estimating the term…
Abstract
An apparatus classifies touch events. The apparatus includes a touch sensitive surface configured to generate a touch event when an object touches the touch sensitive surface. The touch event entails a mechanical vibration upon contact with the surface. The apparatus includes a touch event detector configured to detect the onset of a touch, and a touch event classifier configured to classify the touch event to identify the object used for the touch event. The mechanical vibration is created via any one of finger parts including a tip, a pad, a fingernail, and a knuckle, each of which has a unique feature different from each other.
Claims16
An apparatus for classifying touch events, the apparatus comprising:
- a touch sensitive surface configured to generate a touch event when an object or finger touches the touch sensitive surface, wherein the touch event entails a mechanical vibration generated upon contact with the surface;
- a touch event detector configured to detect the onset of a touch;
- and
- a touch event classifier configured to classify the touch event to identify the object used for the touch event.
A method for classifying touch events, the method comprising:
- detecting a touch event, wherein the touch event is made by an object touching or striking a touch sensitive surface and entails an acoustic signal due to impacting the touch sensitive surface;
- deriving a set of features representative of the touch event from the acoustic signal;
- and
- classifying the touch event using the features to identify the object used for the touch event.
Dependencies are inferred from the claim text.