EP 1187094 B1 20041124 - Sound device with an acoustic waveguide
Title (en)
Sound device with an acoustic waveguide
Title (de)
Beschallungsvorrichtung mit einem akustischen Wellenleiter
Title (fr)
Dispositif de sonorisation à guide d'onde acoustique
Publication
Application
Priority
FR 0011496 A 20000908
Abstract (en)
[origin: EP1187094A1] The sound mechanism has an acoustic generator (22) and an acoustic guide (26) with an input connected to the acoustic generator and output (11) with a shape for propagation. The waveguide has two conduit sections (16,18) having a lengthened output section and a lengthened input section. There is a conical shaped reflection surface (14) with the input defined on the focus of the reflecting section.
IPC 1-7
IPC 8 full level
G10K 11/28 (2006.01); H04R 1/30 (2006.01); H04R 1/34 (2006.01)
CPC (source: EP US)
G10K 11/28 (2013.01 - EP US); H04R 1/345 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1187094 A1 20020313; EP 1187094 B1 20041124; DE 60107336 D1 20041230; DE 60107336 T2 20051201; FR 2813986 A1 20020315; FR 2813986 B1 20021129; JP 2002135878 A 20020510; JP 4897161 B2 20120314; US 2002029926 A1 20020314; US 6585077 B2 20030701
DOCDB simple family (application)
EP 01402280 A 20010903; DE 60107336 T 20010903; FR 0011496 A 20000908; JP 2001271492 A 20010907; US 94866201 A 20010910