EP 0295971 A1 19881221 - High fidelity electroacoustic power transducer with a staggered diffusion system.
Title (en)
High fidelity electroacoustic power transducer with a staggered diffusion system.
Title (de)
HiFi-elektroakustischer Leistungsumwandler mit versetztem Abstrahlsystem.
Title (fr)
Transducteur électroacoustique de puissance, à haute fidélité,à système de diffusion étagé.
Publication
Application
Priority
FR 8705741 A 19870423
Abstract (en)
The invention is in the field of electroacoustic transducers providing high-fidelity sound restoration and which can function at high transmission powers. The objective is to produce an electroacoustic transducer of simple construction and with maximum yield, making it possible to operate at high power with optimum fidelity of reproduction. This objective is achieved with the aid of a transducer characterised in that it consists of at least three separate suites (11, 12, 13) of loudspeakers (21, 22, 23) forming a broadcasting system, at least a first (11) of the said suites of loudspeakers being centred at the front of the broadcasting system, and functioning as a doublet, and at least two other suites (12, 13) of loudspeakers being installed set back from the said first suite(s) (11). <IMAGE>
IPC 1-7
IPC 8 full level
H04R 1/26 (2006.01); H04R 1/28 (2006.01); H04R 1/40 (2006.01)
CPC (source: EP)
H04R 1/26 (2013.01); H04R 1/2819 (2013.01); H04R 1/403 (2013.01)
Citation (search report)
- [A] US 4450322 A 19840522 - WILSON DAVID A [US]
- [A] US 3824343 A 19740716 - DAHLQUIST J
- [A] US 3927261 A 19751216 - DAHLQUIST JON G
- [A] US 4031318 A 19770621 - PITRE LESTER M
- [A] FR 2312909 A1 19761224 - SETTON JACK [FR]
Designated contracting state (EPC)
AT BE CH DE ES GB GR IT LI LU NL SE
DOCDB simple family (publication)
FR 2609853 A1 19880722; FR 2609853 B1 19890421; EP 0295971 A1 19881221
DOCDB simple family (application)
FR 8705741 A 19870423; EP 88400956 A 19880420