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1. (WO2018197793) TACTILE STIMULATION INTERFACE USING TIME REVERSAL AND PROVIDING ENHANCED SENSATIONS

Pub. No.:    WO/2018/197793    International Application No.:    PCT/FR2018/051011
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Apr 24 01:59:59 CEST 2018
IPC: G06F 3/01
Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Inventors: HUDIN, Charles
BOLZMACHER, Christian
HAFEZ, Moustapha
ZOPHONIASSON, Harald
Title: TACTILE STIMULATION INTERFACE USING TIME REVERSAL AND PROVIDING ENHANCED SENSATIONS
Abstract:
The invention relates to a tactile stimulation interface comprising a surface (4) which the user explores by touch with the fingers (D), an actuator (6) for applying a force to the surface (4), and control means for controlling the actuator, said control means sending the actuator signals corresponding to the forces to be applied to the surface according to the tactile stimulation to be generated on the surface, said forces being determined by means of a time reversal method, in which the control means are configured such that, for at least one given tactile pattern, the actuator (4) is controlled such as to generate pulses, in at least one area of the surface, by focusing at least one acoustic wave at a point (PF1, PF2), the location thereof on the surface varying over time, such as to provide tactile stimulation for the finger according to the given tactile pattern.