EP 1201102 A2 20020502 - LOUDSPEAKER
Title (en)
LOUDSPEAKER
Title (de)
LAUTSPRECHER
Title (fr)
HAUT-PARLEUR
Publication
Application
Priority
- GB 0002784 W 20000724
- GB 9917908 A 19990730
Abstract (en)
[origin: WO0110168A2] A loudspeaker has a bending wave panel (11) and an exciter (13) mounted on the panel to excite bendingg wave modes in the panel. A rear box (15) defines a cavity (17) in cooperation with the panel (11). A resonance of cavity and panel at a coupled mode resonance frequency may be controlled by providing a duct (19) coupled to the cavity to selectively reduce sound pressure at the coupled mode resonance frequency. Damping (21) may be provided in the duct (19).
IPC 1-7
IPC 8 full level
H04R 1/02 (2006.01); H04R 1/28 (2006.01); H04R 7/04 (2006.01); H04R 7/06 (2006.01)
CPC (source: EP)
H04R 1/2857 (2013.01); H04R 1/2834 (2013.01); H04R 7/045 (2013.01); H04R 7/06 (2013.01)
Citation (search report)
See references of WO 0110168A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0110168 A2 20010208; WO 0110168 A3 20010816; AT E244494 T1 20030715; AU 6003700 A 20010219; CN 1250042 C 20060405; CN 1360809 A 20020724; DE 60003692 D1 20030807; EP 1201102 A2 20020502; EP 1201102 B1 20030702; GB 9917908 D0 19990929; HK 1042012 A1 20020726; HK 1042012 B 20031003; JP 2003526968 A 20030909; NZ 516351 A 20020927; TW 490988 B 20020611
DOCDB simple family (application)
GB 0002784 W 20000724; AT 00946162 T 20000724; AU 6003700 A 20000724; CN 00810297 A 20000724; DE 60003692 T 20000724; EP 00946162 A 20000724; GB 9917908 A 19990730; HK 02103615 A 20020513; JP 2001513935 A 20000724; NZ 51635100 A 20000724; TW 89115038 A 20000727