The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2025
Filed:
Jan. 29, 2021
Hap2u, Saint Martin d'Hères, FR;
Université DE Lille, Lille, FR;
Matthieu Rupin, Saint Martin d'Hères, FR;
Pierre Garcia, Saint Martin d'Hères, FR;
Frederic Giraud, Lille, FR;
Christophe Giraud-Audine, Lille, FR;
Betty Semail, Lille, FR;
Michel Amberg, Lille, FR;
VIBRA NOVA, Saint-Paul-de-Varces, FR;
UNIVERSITÉ DE LILLE, Lille, FR;
Abstract
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.