US 12,333,079 B2
Surface audio device with haptic or audio feedback
Eero Yli-Rantala, Lapua (FI); Vesa Kajanus, Oulunsalo (FI); Petteri Luukkanen, Tupos (FI); and Mika Lammassaari, Kiviniemi (FI)
Assigned to PS AUDIO DESIGN OY, Oulu (FI)
Appl. No. 18/566,833
Filed by PS Audio Design Oy, Oulu (FI)
PCT Filed Jun. 9, 2022, PCT No. PCT/FI2022/050397
§ 371(c)(1), (2) Date Dec. 4, 2023,
PCT Pub. No. WO2022/258886, PCT Pub. Date Dec. 15, 2022.
Claims priority of application No. 20215680 (FI), filed on Jun. 10, 2021.
Prior Publication US 2024/0201785 A1, Jun. 20, 2024
Int. Cl. G06F 3/01 (2006.01); B06B 1/04 (2006.01); G06F 3/046 (2006.01); G06F 3/16 (2006.01)
CPC G06F 3/016 (2013.01) [B06B 1/045 (2013.01); G06F 3/046 (2013.01); G06F 3/165 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
detection circuitry coupled to a first coil, wherein the detection circuitry is configured to detect a user input on a surface based on a triggering signal comprising voltage or current induced at the first coil by displacement of the surface by a user;
a top portion comprising a first permanent magnet and a base portion comprising the first coil and a second coil, wherein the displacement of the surface by the user is configured to cause movement of the top portion towards the base portion, and wherein the displacement of the surface is configured to cause relative movement between the first permanent magnet and the first coil to induce the voltage or current at the first coil, wherein the base portion further comprises a magnetic element comprising a cavity for the first coil, the second coil, and at least one second permanent magnet, wherein the first coil and the second coil are configured to encircle the at least one second permanent magnet, and wherein the first coil and second coil are located between the magnetic element and the at least one second permanent magnet; and
feedback circuitry coupled to the second coil, wherein the feedback circuitry is configured to activate a feedback signal, in response to detection of the user input by the detection circuitry, and wherein the second coil is configured to cause or alter movement of the surface based on a magnetic field configured to be generated by the second coil upon activation of the feedback signal.