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1. IN3056/CHENP/2005 - VIBRATION SENSING TOUCH INPUT DEVICE

Office
India
Application Number 3056/CHENP/2005
Application Date 18.11.2005
Publication Number 3056/CHENP/2005
Publication Date 25.04.2008
Publication Kind A
IPC
G06F 3/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
Applicants 3M INNOVATIVE PROPERTIES COMPANY
Inventors ROBRECHT, MICHAEL, J
HILL, NICHOLAS, P., R
SULLIVAN, DARIUS, M
Priority Data 10440650 19.05.2003 US
Title
(EN) VIBRATION SENSING TOUCH INPUT DEVICE
Abstract
(EN) Disclosed is a touch input device that determines touch position by sensing vibrations propagating in a touch plate that are indicative of a touch to the touch plate. Vibration sensing devices such as piezoelectric sensors are used to sense the vibrations. Selecting the size, shape, placement position and orientation of the sensors on the touch plate can enhance sensitivity of the sensors to vibration and yield symmetric response with respect to the direction of vibration propagation. Also disclosed is a method of making a vibration sensing touch input device.