EP 3868127 A1 20210825 - LOUDSPEAKER ENCLOSURE AND MODULATION METHOD FOR A LOUDSPEAKER ENCLOSURE
Title (en)
LOUDSPEAKER ENCLOSURE AND MODULATION METHOD FOR A LOUDSPEAKER ENCLOSURE
Title (de)
LAUTSPRECHERGEHÄUSE UND MODULATIONSVERFAHREN FÜR EIN LAUTSPRECHERGEHÄUSE
Title (fr)
ENCEINTE ACOUSTIQUE ET PROCÉDÉ DE MODULATION POUR UNE ENCEINTE ACOUSTIQUE
Publication
Application
Priority
- FR 1871197 A 20181017
- FR 2019052470 W 20191017
Abstract (en)
[origin: WO2020079377A1] The invention relates to a loudspeaker enclosure (10) comprising: - at least two sources (11) suitable for producing ultrasound signals (SU), and - supply means (12) designed to process and amplify at least one input signal (SE) so as to produce, for said sources (11), supply signals (SAn) of the same frequency and of different phases, characterised in that the supply means are configured to apply different gains and/or phase shifts to at least two different frequency components of at least one of the supply signals. The invention also relates to a method for signal modulation for such an ultrasonic loudspeaker enclosure.
IPC 8 full level
H04R 1/40 (2006.01); G10K 11/34 (2006.01)
CPC (source: EP US)
G10K 11/346 (2013.01 - EP); H04R 1/403 (2013.01 - EP US); H04R 2217/03 (2013.01 - EP)
Citation (search report)
See references of WO 2020079377A1
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 2020079377 A1 20200423; EP 3868127 A1 20210825; FR 3087608 A1 20200424; FR 3087608 B1 20211119; US 11490195 B2 20221101; US 2021377656 A1 20211202
DOCDB simple family (application)
FR 2019052470 W 20191017; EP 19808867 A 20191017; FR 1871197 A 20181017; US 201917286755 A 20191017