EP 4025983 A2 20220713 - METHOD AND DEVICE FOR PRODUCING A KEY-CLICK EFFECT ON A HAPTIC INTERFACE
Title (en)
METHOD AND DEVICE FOR PRODUCING A KEY-CLICK EFFECT ON A HAPTIC INTERFACE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ERZEUGUNG EINES TASTENKLICKEFFEKTS AUF EINER HAPTISCHEN SCHNITTSTELLE
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR LA RÉALISATION D'UN EFFET DE CLIC-BOUTON SUR UNE INTERFACE HAPTIQUE
Publication
Application
Priority
- FR 1909660 A 20190903
- FR 2020000232 W 20200903
Abstract (en)
[origin: WO2021044085A2] The invention relates to a method for producing a haptic feedback effect by means of a so-called air cushion or "squeeze film" effect on a haptic interface (20) provided with electromechanical actuators (22) which are configured to apply to said haptic interface ultrasonic vibrations capable of creating standing waves, characterized in that the method comprises the following steps: a. In a preliminary characterization phase (10) of the haptic interface (20), determining a subset (Ω) of resonance frequencies fi of the haptic interface (20) in the ultrasonic domain; b. Defining a haptic sequence consisting of an electrical excitation signal s(t) formed by a succession of at least two periodic signals having frequencies fi, fj which are distinct from each other and belong to said subset (Ω) of resonance frequencies of the haptic interface (20); c. In a use phase, detecting (12) a static touch action of a user on an area of a surface (21) of the haptic interface (20); d. In response to said detection (12), exciting (13) the electromechanical actuators (22) using said electrical excitation signal s(t), so as to transition from a first standing wave to a second standing wave, thereby producing lateral forces felt as a key-click sensation by the user on the haptic surface (20).
IPC 8 full level
G06F 3/01 (2006.01); G06F 3/0488 (2022.01)
CPC (source: EP US)
G06F 3/016 (2013.01 - EP US); G06F 3/041 (2013.01 - US); G06F 3/0488 (2013.01 - EP); G06F 2203/04105 (2013.01 - EP)
Citation (search report)
See references of WO 2021044085A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3100353 A1 20210305; FR 3100353 B1 20220107; EP 4025983 A2 20220713; JP 2022546133 A 20221102; US 11822724 B2 20231121; US 2022291748 A1 20220915; WO 2021044085 A2 20210311; WO 2021044085 A3 20210617; WO 2021044085 A8 20210729; WO 2021044085 A9 20210826
DOCDB simple family (application)
FR 1909660 A 20190903; EP 20851283 A 20200903; FR 2020000232 W 20200903; JP 2022514146 A 20200903; US 202017635204 A 20200903