EP 0297975 B1 19921104 - SOUND PICK-UP AND REPRODUCTION DEVICE, PARTICULARLY FOR AUDIO CONFERENCES
Title (en)
SOUND PICK-UP AND REPRODUCTION DEVICE, PARTICULARLY FOR AUDIO CONFERENCES
Publication
Application
Priority
FR 8709205 A 19870630
Abstract (en)
[origin: EP0297975A1] Sound pick-up and reproduction device, in particular for an audio-conference between several speakers distributed within an arbitrary area substantially around a central point positioned in a reference plane, in particular around a table, comprising a directional microphone (2) and a loudspeaker (9) whose diaphragm is positioned opposite the microphone, the loudspeaker and microphone being placed in an orientation substantially perpendicular to the reference plane. The microphone is of the cardioid type and exhibits a directivity extending perpendicularly to the reference plane and an omnidirectionality parallel to this plane, the microphone being positioned in the upper part of the device and the loudspeaker in the lower part. <IMAGE>
IPC 1-7
IPC 8 full level
H04R 27/00 (2006.01)
CPC (source: EP)
H04R 27/00 (2013.01)
Designated contracting state (EPC)
BE DE ES GB IT NL SE
DOCDB simple family (publication)
EP 0297975 A1 19890104; EP 0297975 B1 19921104; DE 3875659 D1 19921210; DE 3875659 T2 19930325; FR 2617660 A1 19890106; FR 2617660 B1 19900608
DOCDB simple family (application)
EP 88401654 A 19880628; DE 3875659 T 19880628; FR 8709205 A 19870630