EP 0572492 B1 19971119 - METHOD AND APPARATUS FOR ATTENUATING ACOUSTIC VIBRATIONS IN A MEDIUM
Title (en)
METHOD AND APPARATUS FOR ATTENUATING ACOUSTIC VIBRATIONS IN A MEDIUM
Title (de)
Verfahren und Vorrichtung zur Dämpfung akustischer Schwingungen in einem Medium
Title (fr)
PROCEDE ET APPAREIL SERVANT A AFFAIBLIR LES VIBRATIONS ACOUSTIQUES DANS UN MILIEU
Publication
Application
Priority
- GB 9200314 W 19920221
- GB 9103689 A 19910221
Abstract (en)
[origin: WO9215088A1] Apparatus is provided for attenuating acoustic vibrations in a medium comprising a tunable acoustic resonator (3) with an open end (5) for interfacing with the medium, at least one transducer (11) to provide a resonator signal indicative of a dynamic parameter of the medium within the resonator (3), and a resonator controller (8) operable in response to the resonator signal to tune the resonator (3) to a selected frequency of the acoustic vibrations.
IPC 1-7
IPC 8 full level
G10K 11/172 (2006.01); G10K 11/178 (2006.01)
CPC (source: EP)
G10K 11/172 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
WO 9215088 A1 19920903; DE 69223238 D1 19980102; DE 69223238 T2 19980528; EP 0572492 A1 19931208; EP 0572492 B1 19971119; GB 2253076 A 19920826; GB 2253076 B 19940803; GB 9103689 D0 19910410; JP H06510870 A 19941201
DOCDB simple family (application)
GB 9200314 W 19920221; DE 69223238 T 19920221; EP 92905463 A 19920221; GB 9103689 A 19910221; JP 50503992 A 19920221