Abstract: A method for controlling a mobile device—placed on a holder, comprising an interface plate configured to be touched by an object so as to control the device, and comprising at least two movement sensors configured to detect a movement of the device—comprises a) applying an object to the holder at a point of impact located outside the interface plate, the application of the object leading to a propagation of a vibration wave that propagates along the holder, toward the mobile device; b) detecting, with each movement sensor, the vibration wave at a detection time; c) comparing detection times detected by each movement sensor, respectively; d) estimating a position of the point of impact on the holder, depending on the comparison carried out in c); and e) generating a control signal of the mobile device depending on the position estimated in d).

Abstract: A vibrating touch screen includes a plate; two first elongated portions approximately parallel to each other, having an acoustic reflection coefficient greater than that of the plate, and connected to a first surface of the plate; and two strips of piezoelectric actuators approximately parallel to the portions and located therebetween.

Abstract: A haptic device, for interaction with virtual reality or augmented reality systems, including a fixed body configured to be worn on a finger of the hand, and a movable body associated with the fixed body and actuated by a motor means; the device includes a flap associated with the movable body and having a convex contact surface; the movable body being movable with respect to the fixed body so that the contact surface moves from a position that is spaced from the fingertip to a position of contact with the fingertip.

Abstract: A touch-sensitive interface has a contact surface that is able to be touched by an effector (e.g., a finger). The interface includes actuating transducers (e.g., piezoelectric transducers) allowing a standing flexural wave to be formed, in a resonant mode, extending over the length of the slab. The interface includes a detector for measuring the amplitude of the wave, and a detecting circuit for determining an attenuation signal, when the contact surface is touched by an effector. It includes a processing circuit for estimating a magnitude of the force exerted by the effector on the contact surface.

Abstract: A method for controlling a mobile device—placed on a holder, comprising an interface plate configured to be touched by an object so as to control the device, and comprising at least two movement sensors configured to detect a movement of the device—comprises a) applying an object to the holder at a point of impact located outside the interface plate, the application of the object leading to a propagation of a vibration wave that propagates along the holder, toward the mobile device; b) detecting, with each movement sensor, the vibration wave at a detection time; c) comparing detection times detected by each movement sensor, respectively; d) estimating a position of the point of impact on the holder, depending on the comparison carried out in c); and e) generating a control signal of the mobile device depending on the position estimated in d).

Abstract: A method for generating at least one tactile pattern using a haptic feedback device (70) having an active space within which a user can move his finger (F) in order to feel the tactile pattern, the perception of the pattern being caused by the modulation of the mechanical excitation of the finger pad by an excitation element, the method having the steps involving: detecting (100) the position of the finger (F) in the active space; calculating (101) the speed of the finger, determining (102), for each detected position of the finger, an associated taxtel within a predefined grid of taxtels, each taxtel having an associated texture value that is dependent on the tactile pattern to be reproduced, each taxtel having its largest dimension less than or equal to 8 mm, generating (103, 104, 105), on the basis of the texture value associated with this taxtel, a control signal for controlling the excitation element, this excitation signal being dependent on the speed of the finger at least for the densest tactile pa

Abstract: A touch-sensitive interface has a contact surface that is able to be touched by an effector (e.g., a finger). The interface includes actuating transducers (e.g., piezoelectric transducers) allowing a standing flexural wave to be formed, in a resonant mode, extending over the length of the slab. The interface includes a detector for measuring the amplitude of the wave, and a detecting circuit for determining an attenuation signal, when the contact surface is touched by an effector. It includes a processing circuit for estimating a magnitude of the force exerted by the effector on the contact surface.

Abstract: A vibrating touch screen includes a plate; two first elongated portions approximately parallel to each other, having an acoustic reflection coefficient greater than that of the plate, and connected to a first surface of the plate; and two strips of piezoelectric actuators approximately parallel to the portions and located therebetween.

Abstract: A haptic device, for interaction with virtual reality or augmented reality systems, including a fixed body configured to be worn on a finger of the hand, and a movable body associated with the fixed body and actuated by a motor means; the device includes a flap associated with the movable body and having a convex contact surface; the movable body being movable with respect to the fixed body so that the contact surface moves from a position that is spaced from the fingertip to a position of contact with the fingertip.