EP 3042509 B1 20180801 - DIGITAL ACOUSTIC DEVICE WITH INCREASED SOUND POWER
Title (en)
DIGITAL ACOUSTIC DEVICE WITH INCREASED SOUND POWER
Title (de)
DIGITALE AKUSTISCHE VORRICHTUNG MIT ERHÖHTER TONLEISTUNG
Title (fr)
DISPOSITIF ACOUSTIQUE NUMERIQUE A PUISSANCE SONORE AUGMENTEE
Publication
Application
Priority
- FR 1358462 A 20130904
- EP 2014068833 W 20140904
Abstract (en)
[origin: WO2015032855A1] The invention relates to a digital acoustic device comprising at least one diaphragm (2) suspended facing a support (4) and at least one actuator (6, 10) associated with said diaphragm, said associated actuator (6, 10) being intended to move said diaphragm (20) away from and/or closer to said support (4), said device also comprising stop means (14) designed to stop the movement of said diaphragm (2) following the activation of the actuator when the diaphragm has a non-zero speed, the stop means (14) being dimensioned so as to stop the movement of the diaphragm (2) when the movement of the diaphragm is greater than or equal to 50% of the maximum design travel of the diaphragm and less than or equal to 95% of the maximum design travel of the diaphragm.
IPC 8 full level
H04R 7/26 (2006.01); H04R 1/00 (2006.01); H04R 17/00 (2006.01); H04R 31/00 (2006.01)
CPC (source: EP US)
H04R 7/26 (2013.01 - EP US); H04R 31/00 (2013.01 - EP US); H04R 1/005 (2013.01 - EP US); H04R 17/00 (2013.01 - EP US); H04R 2201/003 (2013.01 - EP US); H04R 2307/201 (2013.01 - US); H04R 2307/207 (2013.01 - US)
Citation (examination)
RYOTA SAITO ET AL: "Audio Engineering Society Convention Paper 7344 A Digitally Direct Driven Dynamic-type Loudspeaker", 17 May 2008 (2008-05-17), XP055136464, Retrieved from the Internet <URL:http://www.aes.org/tmpFiles/elib/20140826/14474.pdf> [retrieved on 20140826]
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
DOCDB simple family (publication)
FR 3010272 A1 20150306; FR 3010272 B1 20170113; CN 105519134 A 20160420; EP 3042509 A1 20160713; EP 3042509 B1 20180801; US 2016205478 A1 20160714; US 9900700 B2 20180220; WO 2015032855 A1 20150312
DOCDB simple family (application)
FR 1358462 A 20130904; CN 201480049130 A 20140904; EP 14766933 A 20140904; EP 2014068833 W 20140904; US 201414915749 A 20140904