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patent

A sound diffusion system for directional sound enhancement

Falourd, Xavier  
•
Marmaroli, Patrick  
•
Lissek, Hervé  
Show more
2015

A loudspeaker array is described including several circular sound emitters that are bunked. One circular sound emitter can be either a circular array of loudspeakers (kind 1) or a toroidal loudspeaker (kind 2). The loudspeaker array can be composed of circular sound emitters of kind 1, kind 2 or both.A toroidal loudspeaker is a loudspeaker whose membrane is annular and whose enclosure has a central hole. Both toroidal loudspeaker and circular array radiate mainly in their normal axis, i.e., perpendicular to the plane comprising the membrane or the loudspeakers. Circular sound emitters are arranged like an end-fire array so that all the circular sound emitters centers are on the same axis. Each circular sound emitter is driven by its own signal, which results from a filtered version of the input signal, allowing the sound to be focused in the radiation direction.

  • Details
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Type
patent
EPO Family ID

49979723

Author(s)
Falourd, Xavier  
Marmaroli, Patrick  
Lissek, Hervé  
Monchâtre, Cédric
Crettaz, Baptiste  
Delidais, Alexandre
Dufaux, Alain  
Subjects

directive sound diffusion

•

private listening space

•

loudspeaker arrays

•

toroidal loudspeaker

Note

Alternative title(s) : (de) Klangdiffusionssystem für direktionale klangverbesserung (fr) Système de diffusion sonore pour améliorer un son directionnel

TTO classification

TTO:6.1314

EPFL units
LTS2  
LEMA  
AVP-R-TTO  
DOICountry codeKind codeDate issued

US2017006379

US

A1

2017-01-05

EP3078209

EP

A2

2016-10-12

WO2015083020

WO

A3

2015-11-12

WO2015083020

WO

A2

2015-06-11

GB201321325

GB

D0

2014-01-15

Available on Infoscience
June 12, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/115067
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