Device for creating haptic sensations on a surface using ultrasonic waves producing elliptical movements

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12189856
APP PUB NO 20230075405A1
SERIAL NO

17795754

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Abstract

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The invention relates to a touch interface comprising, on the one hand, an interfacial surface able to generate a haptic-feedback effect in response to a touch of said surface by a user, and, on the other hand, at least one piezoelectric actuator configured to generate, in said interfacial surface, at least one wave of ultrasonic frequency able to endow the particles of this surface with an elliptical movement having a movement component tangential to said surface, which component is denoted ut(t), and a movement component normal to said surface, which component is denoted un(t), wherein said wave of ultrasonic frequency is chosen so that the amplitude Ut of the tangential component ut(t) and the amplitude Un of the normal component un(t) are substantially equal.

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Patent Owner(s)

Patent OwnerAddress
VIBRA NOVA192 CHEMIN DE MAUBOURG SAINT-PAUL-DE-VARCES 38760

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amberg, Michel Lille, FR 3 6
Garcia, Pierre Saint Martin d'Hères, FR 2 26
Giraud, Frederic Lille, FR 24 49
Giraud-Audine, Christophe Lille, FR 2 2
Rupin, Matthieu Saint Martin d'Hères, FR 7 20
Semail, Betty Lille, FR 4 0

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