EP 3878189 A1 20210915 - ACOUSTIC DEVICE GENERATING IMPROVED SOUND
Title (en)
ACOUSTIC DEVICE GENERATING IMPROVED SOUND
Title (de)
AKUSTISCHE VORRICHTUNG MIT VERBESSERTER GERÄUSCHERZEUGUNG
Title (fr)
DISPOSITIF ACOUSTIQUE GÉNÉRANT UN SON AMÉLIORÉ
Publication
Application
Priority
- FR 1872903 A 20181214
- FR 2019053031 W 20191212
Abstract (en)
[origin: WO2020120909A1] The invention relates to an acoustic device including a structure comprising a surface (1) capable of being vibrated at least at one control point so as to emit a sound, and actuators (A1, A2, A3, A4, A5) capable of causing a surface deformation at the control points (Z1, Z2, Z3, Z4, Z5) so as to vibrate same, means (6) for controlling the actuators (A1, A2, A3, A4, A5) configured to send control signals to the actuators (A1, A2, A3, A4, A5), comprising means (8) for calculating said control signals, said calculating means implementing an inverse filtering operation, so as to emit, from a sound to be generated, control signals to the actuators (A1, A2, A3, A4, A5), so as to vibrate at least some of the control points (Z1, Z2, Z3, Z5) and to emit the given sound, and at least partially compensating for the distortion, reverberation and propagation of the waves.
IPC 8 full level
H04R 3/04 (2006.01); H04R 3/12 (2006.01); H04R 7/04 (2006.01)
CPC (source: EP)
H04R 3/04 (2013.01); H04R 3/12 (2013.01); H04R 7/045 (2013.01); H04R 2440/01 (2013.01); H04R 2499/11 (2013.01); H04R 2499/15 (2013.01)
Citation (search report)
See references of WO 2020120909A1
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)
WO 2020120909 A1 20200618; EP 3878189 A1 20210915; FR 3090207 A1 20200619; FR 3090207 B1 20221223
DOCDB simple family (application)
FR 2019053031 W 20191212; EP 19842389 A 20191212; FR 1872903 A 20181214