EP 3574498 A1 20191204 - SOUND BROADCASTING SYSTEM
Title (en)
SOUND BROADCASTING SYSTEM
Title (de)
TONÜBERTRAGUNGSSYSTEM
Title (fr)
SYSTÈME DE DIFFUSION SONORE
Publication
Application
Priority
- FR 1750580 A 20170124
- FR 2018050060 W 20180110
Abstract (en)
[origin: WO2018138425A1] The invention relates to a sound broadcasting device (1) comprising a high-frequency section (2) including at least one high-frequency acoustic source (SHF), and a medium-frequency section (3, 4) including at least two medium-frequency sources (SMF), the acoustic sources (SHF, SMF) being vertically superposed, where the medium-frequency section (3, 4) comprises a lower sub-section (3), arranged below the high-frequency section (2) and comprising at least one medium-frequency acoustic source (SMF), and an upper sub-section (4), arranged above the high-frequency section (2) and comprising at least one medium-frequency acoustic source (SMF), where the vertical directivity of the high-frequency section (2) has an incline, relative to the horizontal (H), that is substantially equal to the incline (θMF) of the vertical directivity of the medium-frequency section (3, 4) relative to the horizontal (H), so that the overall vertical directivity of the device (1) has a non-zero incline (θDir) relative to the horizontal (H).
IPC 8 full level
G10K 11/26 (2006.01); G10K 11/34 (2006.01); H04R 1/32 (2006.01); H04R 1/40 (2006.01)
CPC (source: EP RU US)
G10K 11/26 (2013.01 - EP RU); G10K 11/34 (2013.01 - EP RU); H04R 1/025 (2013.01 - RU US); H04R 1/24 (2013.01 - US); H04R 1/403 (2013.01 - EP US); H04R 3/12 (2013.01 - US)
Citation (search report)
See references of WO 2018138425A1
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 3062233 A1 20180727; FR 3062233 B1 20200320; BR 112019015259 A2 20200414; CN 110419077 A 20191105; CN 110419077 B 20231114; EP 3574498 A1 20191204; MX 2019008802 A 20200127; RU 2019123538 A 20210226; RU 2019123538 A3 20210524; RU 2760383 C2 20211124; US 11006211 B2 20210511; US 2020068296 A1 20200227; WO 2018138425 A1 20180802
DOCDB simple family (application)
FR 1750580 A 20170124; BR 112019015259 A 20180110; CN 201880017910 A 20180110; EP 18702758 A 20180110; FR 2018050060 W 20180110; MX 2019008802 A 20180110; RU 2019123538 A 20180110; US 201816480640 A 20180110