EP 1016314 A1 20000705 - PROCESS AND ELECTRIC APPLIANCE FOR OPTIMISING ACOUSTIC SIGNAL RECEPTION
Title (en)
PROCESS AND ELECTRIC APPLIANCE FOR OPTIMISING ACOUSTIC SIGNAL RECEPTION
Title (de)
VERFAHREN ZUR OPTIMIERUNG DES EMPFANGS AKUSTISCHER SIGNALE UND ELEKTRISCHES GERÄT
Title (fr)
PROCEDE ET APPAREIL ELECTRIQUE POUR OPTIMISER LA RECEPTION DE SIGNAUX ACOUSTIQUES
Publication
Application
Priority
- DE 19741596 A 19970920
- EP 9801537 W 19980317
Abstract (en)
[origin: DE19741596A1] Converts acoustic signals, received from several microphones (5, 10, 15), into electric output signals. These signals are heterodyned with at least one electric signal phase delayed prior to heterodyning; so that, dependent on location of the coupled microphones, the amplitude of the heterodyne signal for at least one pre-set point (200) lies in a pre-set region. At the pre-set point a sound source (55) transmits acoustic signals
IPC 1-7
IPC 8 full level
H04R 3/00 (2006.01)
CPC (source: EP US)
H04R 3/005 (2013.01 - EP US)
Citation (search report)
See references of WO 9916285A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 19741596 A1 19990325; DE 59804536 D1 20020725; EP 1016314 A1 20000705; EP 1016314 B1 20020619; JP 2001517916 A 20011009; US 6529869 B1 20030304; WO 9916285 A1 19990401
DOCDB simple family (application)
DE 19741596 A 19970920; DE 59804536 T 19980317; EP 9801537 W 19980317; EP 98916975 A 19980317; JP 2000513442 A 19980317; US 50913500 A 20000601