EP 1635606 A1 20060315 - Public address systems with adjustable directivity
Title (en)
Public address systems with adjustable directivity
Title (de)
Beschallungsanlage mit einstellbarer Richtwirkung
Title (fr)
Système de sonorisation à directivité réglable
Publication
Application
Priority
FR 0409688 A 20040913
Abstract (en)
The system has a loudspeaker enclosure (E1) including an expansion guide (3) having a movable flap that is displaced by a predetermined movement parallel to a plane (P). Another loudspeaker enclosure forms a line source array with the enclosure (E1) and includes a movable flap displaced independent of the former flap, where the line source array extends along a direction transversal to the plane.
IPC 8 full level
H04R 1/32 (2006.01); G10K 11/35 (2006.01); H04R 1/34 (2006.01); H04R 1/30 (2006.01)
CPC (source: EP US)
H04R 1/345 (2013.01 - EP US)
Citation (applicant)
- EP 0331566 A1 19890906 - HEIL TEA S A R L C [FR]
- US 5163167 A 19921110 - HEIL CHRISTIAN [FR]
Citation (search report)
- [X] US 6394223 B1 20020528 - LEHMAN RICHARD W [US]
- [A] US 5163167 A 19921110 - HEIL CHRISTIAN [FR]
- [A] GB 404937 A 19340115 - WILLIAM ROBERTSON MILLAR
- [A] US 5020630 A 19910604 - GUNNESS DAVID W [US]
- [A] US 2004131217 A1 20040708 - OPIE SCOTT M [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1635606 A1 20060315; EP 1635606 B1 20100331; AT E463133 T1 20100415; DE 602005020225 D1 20100512; DK 1635606 T3 20100719; ES 2345259 T3 20100920; FR 2875367 A1 20060317; FR 2875367 B1 20061215; PT 1635606 E 20100622; US 2006062402 A1 20060323; US 7751581 B2 20100706
DOCDB simple family (application)
EP 05291876 A 20050912; AT 05291876 T 20050912; DE 602005020225 T 20050912; DK 05291876 T 20050912; ES 05291876 T 20050912; FR 0409688 A 20040913; PT 05291876 T 20050912; US 22538405 A 20050913