EP 0606387 B1 19960911 - SYSTEM FOR SOUND PICK-UP, APPARATUS FOR SOUND PICK-UP AND REPRODUCTION
Title (en)
SYSTEM FOR SOUND PICK-UP, APPARATUS FOR SOUND PICK-UP AND REPRODUCTION
Title (de)
SYSTEM ZUR TONAUFNAHME SOWIE GERÄT ZUR TONAUFNAHME UND -WIEDERGABE
Title (fr)
SYSTEME DE PRISE DE SON, ET APPAREIL DE PRISE ET DE RESTITUTION DE SON
Publication
Application
Priority
- FR 9112125 A 19911002
- FR 9200919 W 19921002
Abstract (en)
[origin: US5524059A] PCT No. PCT/FR92/00919 Sec. 371 Date Apr. 1, 1994 Sec. 102(e) Date Apr. 1, 1994 PCT Filed Oct. 2, 1992 PCT Pub. No. WO93/07730 PCT Pub. Date Apr. 15, 1993.Several microphones (M1, M3) are arranged substantially in the same plane (P) and are distributed symmetrically with respect to a direction of symmetry (D) perpendicular to this plane (P). A phase shift is applied between the signals output respectively by different microphones (M1, M3) and the signals thus phase shifted are added, in such a way as substantially to cancel the signals relating to any sound wave arriving in phase and with the same intensity on each of the microphones (M1, M3).
IPC 1-7
IPC 8 full level
H04R 1/34 (2006.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); H04R 27/00 (2006.01)
CPC (source: EP US)
H04R 1/34 (2013.01 - EP US); H04R 1/406 (2013.01 - EP US); H04R 3/005 (2013.01 - EP US); H04R 27/00 (2013.01 - EP US); H04R 2201/401 (2013.01 - EP US)
Citation (examination)
US 4184048 A 19800115 - ALCAIDE ANDRE [FR]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE
DOCDB simple family (publication)
WO 9307730 A1 19930415; AT E142836 T1 19960915; AU 2777992 A 19930503; AU 669859 B2 19960627; CA 2120019 A1 19930415; CA 2120019 C 20000530; DE 69213748 D1 19961017; DE 69213748 T2 19970410; EP 0606387 A1 19940720; EP 0606387 B1 19960911; ES 2094374 T3 19970116; FR 2682251 A1 19930409; FR 2682251 B1 19970425; JP 3099961 B2 20001016; JP H06511363 A 19941215; RU 2096928 C1 19971120; US 5524059 A 19960604
DOCDB simple family (application)
FR 9200919 W 19921002; AT 92921887 T 19921002; AU 2777992 A 19921002; CA 2120019 A 19921002; DE 69213748 T 19921002; EP 92921887 A 19921002; ES 92921887 T 19921002; FR 9112125 A 19911002; JP 50666493 A 19921002; RU 94026262 A 19921002; US 21140194 A 19940401