EP 2929699 A1 20151014 - LOUDSPEAKER HAVING A PRESSURE COMPENSATION ELEMENT
Title (en)
LOUDSPEAKER HAVING A PRESSURE COMPENSATION ELEMENT
Title (de)
LAUTSPRECHER MIT DRUCK-KOMPENSATIONS-ELEMENT
Title (fr)
HAUT-PARLEUR COMPRENANT UN ÉLÉMENT DE COMPENSATION DE PRESSION
Publication
Application
Priority
- DE 102012222447 A 20121206
- EP 2013075721 W 20131205
Abstract (en)
[origin: WO2014086947A1] The invention relates to a loudspeaker comprising a sound transducer, a housing, and means for influencing temperature, such as a pressure compensation element. The sound transducer comprises a membrane, wherein the membrane encloses a gas volume together with the housing. The sound transducer is designed to cause vibration in the membrane, such that the gas volume is changed in accordance with the vibration. The means for influencing temperature are designed to counteract a state change caused by the membrane vibration by means of a temperature change in the gas volume.
IPC 8 full level
H04R 1/28 (2006.01)
CPC (source: EP US)
H04R 1/02 (2013.01 - US); H04R 1/2803 (2013.01 - EP US); H04R 1/42 (2013.01 - US); H04R 29/001 (2013.01 - US)
Citation (search report)
See references of WO 2014086947A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102012222447 B3 20140528; EP 2929699 A1 20151014; HK 1215114 A1 20160812; JP 2016504849 A 20160212; JP 6174159 B2 20170802; US 2015271594 A1 20150924; US 9674605 B2 20170606; WO 2014086947 A1 20140612
DOCDB simple family (application)
DE 102012222447 A 20121206; EP 13799333 A 20131205; EP 2013075721 W 20131205; HK 16103051 A 20160316; JP 2015546019 A 20131205; US 201514732238 A 20150605