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1. WO2004104808 - VIBRATION SENSING TOUCH INPUT DEVICE

Publication Number WO/2004/104808
Publication Date 02.12.2004
International Application No. PCT/US2004/012167
International Filing Date 20.04.2004
Chapter 2 Demand Filed 17.02.2006
IPC
G06F 3/00 2006.1
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
G09G 5/00 2006.1
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
5Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
CPC
G06F 3/0433
GPHYSICS
06COMPUTING; CALCULATING; 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
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
043using propagating acoustic waves
0433in which the acoustic waves are either generated by a movable member and propagated within a surface layer or propagated within a surface layer and captured by a movable member
Applicants
  • 3M INNOVATIVE PROPERTIES COMPANY [US]/[US] (AllExceptUS)
Inventors
  • ROBRECHT, Michael J.,
  • HILL, Nicholas P.R.,
  • SULLIVAN, Darius M.,
Agents
  • PECHMAN, Robert J.,
  • VOSSIUS & PARTNER
Priority Data
10/440,65019.05.2003US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) VIBRATION SENSING TOUCH INPUT DEVICE
(FR) DISPOSITIF D'ENTREE TACTILE A DETECTION DE VIBRATIONS
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.
(FR) Cette invention concerne un dispositif d'entrée tactile qui détermine une position de contact au moyen de la détection de vibrations qui se propagent dans une plaque de contact et qui indiquent un contact sur la plaque de contact. Des dispositifs de détection de vibrations, tels que des capteurs piézoélectriques, sont utilisés pour détecter les vibrations. Le fait de sélectionner la taille, la forme, la position de placement et l'orientation des capteurs sur la plaque de contact permet d'accroître la sensibilité des capteurs à l'égard des vibrations et de générer une réponse symétrique par rapport à la direction de propagation des vibrations. Cette invention concerne également un procédé de fabrication d'un dispositif d'entrée tactile à détection de vibrations.
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