EP 3824652 A1 20210526 - DEVICE FOR PLAYING AUDIO HAVING A SET NON-CONSTANT CURVATURE
Title (en)
DEVICE FOR PLAYING AUDIO HAVING A SET NON-CONSTANT CURVATURE
Title (de)
VORRICHTUNG ZUR WIEDERGABE VON AUDIO MIT EINER FESTEN NICHTKONSTANTEN KRÜMMUNG
Title (fr)
DISPOSITIF DE DIFFUSION SONORE A COURBURE NON CONSTANTE FIGEE
Publication
Application
Priority
- FR 1856699 A 20180719
- FR 2019051817 W 20190719
Abstract (en)
[origin: WO2020016538A1] The present invention relates to a device (300) for playing audio comprising a single enclosure (310) and, in this single enclosure (310), at least two superposed high-frequency acoustic sources (320) and a plurality of superposed medium-frequency and/or low-frequency sources (330) placed to the left and/or to the right of the high-frequency acoustic sources (320), the high-frequency acoustic sources (320) being individually coupled to a waveguide (340) so as to generate a vertical wavefront having a set non-constant curvature. Such a device (300) makes it possible to minimise the discontinuities between the acoustic sources, allowing high-quality audio to be played (no parasitic lobes), to considerably decrease weight and cost of manufacture, and also a rapid installation requiring no angular adjustment of each of the acoustic sources with respect to one another, contrary to current devices.
IPC 8 full level
H04R 1/30 (2006.01); H04R 1/34 (2006.01); H04R 1/40 (2006.01); H04R 3/14 (2006.01); H04R 27/00 (2006.01)
CPC (source: EP US)
H04R 1/345 (2013.01 - US); H04R 1/403 (2013.01 - EP US); H04R 27/00 (2013.01 - EP); H04R 1/30 (2013.01 - EP); H04R 1/345 (2013.01 - EP); H04R 3/14 (2013.01 - EP); H04R 27/00 (2013.01 - US); H04R 2201/403 (2013.01 - EP)
Citation (search report)
See references of WO 2020016538A1
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 2020016538 A1 20200123; CN 112655222 A 20210413; EP 3824652 A1 20210526; FR 3084230 A1 20200124; FR 3084230 B1 20210101; US 11463807 B2 20221004; US 2021297772 A1 20210923
DOCDB simple family (application)
FR 2019051817 W 20190719; CN 201980053712 A 20190719; EP 19753182 A 20190719; FR 1856699 A 20180719; US 201917261513 A 20190719