EP 1284586 B1 20060315 - Method and system for directional sound generation
Title (en)
Method and system for directional sound generation
Title (de)
Verfahren und System zur gerichteten Audio-Beschallung
Title (fr)
Procédé et système de sonorisation directionnelle
Publication
Application
Priority
DE 10140646 A 20010818
Abstract (en)
[origin: EP1284586A2] A method of directional propagation of sound to a listener with acoustically perceptible audio-sound (3) by modulation of the amplitude of an intensive ultra-sound carrier signal (2) radiated as a concentrated beam from an ultra-sound transmitter (1). The audio-sound is directed to the listener (4) by means of a reflector (5), and the ultra-sound-carrier signal is damped before reaching the listener by a device positioned between the ultra-sound transmitter and the listener. Damping of the ultra-sound signal is specifically carried out by means of absorption. An Independent claim is given for a directional sound radiation device.
IPC 8 full level
B60R 11/02 (2006.01); G10K 11/28 (2006.01); H04R 1/34 (2006.01); H04R 3/00 (2006.01); H04R 5/02 (2006.01)
CPC (source: EP US)
G10K 11/28 (2013.01 - EP US); H04R 1/345 (2013.01 - EP US); H04R 2217/03 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1284586 A2 20030219; EP 1284586 A3 20040804; EP 1284586 B1 20060315; DE 10140646 A1 20030313; DE 10140646 C2 20031120; DE 50206061 D1 20060511; JP 2003163986 A 20030606; US 2003035552 A1 20030220
DOCDB simple family (application)
EP 02017268 A 20020801; DE 10140646 A 20010818; DE 50206061 T 20020801; JP 2002238600 A 20020819; US 22315902 A 20020818