Time reversal interface generating an acoustic lubrication
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsChristian Bolzmacher, Charles Hudin, Moustapha Hafez
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AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsChristian Bolzmacher, Charles Hudin, Moustapha Hafez
Estimating the term…
A tactile stimulation interface comprising a surface explored by touch by means of a finger of a user, actuators applying forces on said surface, and control means of the actuators, said control means sending, to the actuators, signals corresponding to the forces to be applied to said surface, the forces being determined by a time reversal method, means for detecting the contact of the finger with the surface and for monitoring the movement of the finger on the surface. The control means are capable, in order to produce an acoustic lubrication effect in at least one given area of the surface, of generating a signal formed from a convolution of a pulsed response returned by a continuous function representative of the acoustic lubrication effect.
An interface including a surface, at least one actuator configured to apply a strain to said surface, and a controller for controlling said at least one actuator, said controller being configured to send to the actuator signals corresponding to the strains to be applied to said surface, said strains being determined by a time reversal method, wherein the controller includes a database of reversed pulse responses, and database of acoustic lubrication effects including at least one continuous function representative of an acoustic lubrication effect, and is configured to convolute a reversed pulse response by a continuous function, and wherein the controller is configured, to produce an acoustic lubrication in at least one given area of the surface, to generate at least one signal formed from a convolution of a reversed pulse response determined from the database of reversed pulse responses by a continuous function of the database of the acoustic lubrication effects.
Dependencies are inferred from the claim text.