EP 1417858 B1 20121017 - ELECTROACOUSTIC PUBLIC ADDRESS UNIT WITH ACOUSTIC HORN
Title (en)
ELECTROACOUSTIC PUBLIC ADDRESS UNIT WITH ACOUSTIC HORN
Title (de)
ELEKTROAKUSTISCHE PA-EINHEIT MIT AKUSTISCHEM HORN
Title (fr)
UNITE DE SONORISATION ELECTROACOUSTIQUE A PAVILLON
Publication
Application
Priority
- FR 0202616 W 20020722
- FR 0109798 A 20010723
Abstract (en)
[origin: FR2827732A1] The electroacoustic horn (13) has a throat section (17) with an electroacoustic transducer and mouth (19). There is a profiled removable dispersion conformer section (21a,21b) which is mounted on the inner wall modifying the inner shape.
IPC 8 full level
H04R 1/30 (2006.01)
CPC (source: EP US)
H04R 1/30 (2013.01 - EP US)
Citation (examination)
- US 5117462 A 19920526 - BIE DAVID D [US]
- US 4050541 A 19770927 - HENRICKSEN CLIFFORD A
- US 6081602 A 20000627 - MEYER JOHN D [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
FR 2827732 A1 20030124; FR 2827732 B1 20040123; CN 100481968 C 20090422; CN 1535554 A 20041006; EP 1417858 A1 20040512; EP 1417858 B1 20121017; EP 1417858 B8 20121205; JP 2004537939 A 20041216; JP 4124727 B2 20080723; US 2004206572 A1 20041021; US 7178629 B2 20070220; WO 03013184 A1 20030213
DOCDB simple family (application)
FR 0109798 A 20010723; CN 02814677 A 20020722; EP 02772446 A 20020722; FR 0202616 W 20020722; JP 2003518224 A 20020722; US 48446504 A 20040122