EP 0645070 B1 19970409 - STEREOPHONIC SOUND REPRODUCTION DEVICE USING SEVERAL LOUDSPEAKERS IN EACH CHANNEL
Title (en)
STEREOPHONIC SOUND REPRODUCTION DEVICE USING SEVERAL LOUDSPEAKERS IN EACH CHANNEL
Title (de)
STEREOPHONISCHE TONWIEDERGABEVORRICHTUNG MIT MEHREREN LAUTSPRECHERN FUR JEDEN KANAL
Title (fr)
DISPOSITIF DE REPRODUCTION SONORE STEREOPHONIQUE UTILISANT UNE PLURALITE DE HAUT-PARLEURS DANS CHAQUE CANAL
Publication
Application
Priority
- FR 9300558 W 19930611
- FR 9207447 A 19920612
Abstract (en)
[origin: WO9326134A1] Sound reproduction device including a stereophonic amplifying means (3), based on two, left and right, signals (61?, 62?), from any stereophonic emission source (1), and various loudspeakers (4, 9) disposed in two groups, on the left (9) and on the right (4), of the listenig direction, each receiving respectively the amplified left signal (8) and right signal (7). The loudspeaker assembly (4, 9) consists of an even number of loudspeakers, with at least four loudspeakers being located in pairs along vertical or substantially vertical axes (xx'). All the loudspeaker emission sides are placed according to a continuous curved surface (5) and distances in height as well as width between said loudspeakers (4, 9) are determined by the size of the latter and of the listening volume.
IPC 1-7
IPC 8 full level
H04R 5/02 (2006.01); H04R 1/40 (2006.01); H04R 3/12 (2006.01); H04S 1/00 (2006.01); H04S 3/00 (2006.01); H04S 7/00 (2006.01)
CPC (source: EP US)
H04R 1/403 (2013.01 - EP US); H04R 3/12 (2013.01 - EP US); H04S 3/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9326134 A1 19931223; AT E151585 T1 19970415; CA 2137695 A1 19931223; DE 69309679 D1 19970515; DE 69309679 T2 19971023; DK 0645070 T3 19971027; EP 0645070 A1 19950329; EP 0645070 B1 19970409; FR 2692425 A1 19931217; FR 2692425 B1 19970425; JP H08502863 A 19960326; US 5717766 A 19980210
DOCDB simple family (application)
FR 9300558 W 19930611; AT 93913114 T 19930611; CA 2137695 A 19930611; DE 69309679 T 19930611; DK 93913114 T 19930611; EP 93913114 A 19930611; FR 9207447 A 19920612; JP 50118793 A 19930611; US 36072295 A 19950530