EP 3382690 B1 20210421 - HORN DEVICE
Title (en)
HORN DEVICE
Title (de)
HORNVORRICHTUNG
Title (fr)
DISPOSITIF AVERTISSEUR
Publication
Application
Priority
JP 2017068407 A 20170330
Abstract (en)
[origin: EP3382690A1] A horn device (A, B), which can prevent the decrease of sound pressure is provided. The horn device (A, B) which resonates, by a resonator (1), sound produced by vibrating a diaphragm (21), and comprises a control part (34, 34B) which vibrates the diaphragm (2), and a temperature measurement part (30); the control part (34, 34B) changes a vibration frequency which vibrates the diaphragm (21) according to a temperature measured by the temperature measurement part (30).
IPC 8 full level
G10K 9/13 (2006.01)
CPC (source: CN EP)
G10K 9/13 (2013.01 - EP); H04R 9/02 (2013.01 - CN); H04R 9/06 (2013.01 - CN); H04R 2400/11 (2013.01 - CN)
Citation (examination)
US 2015221188 A1 20150806 - WAN YU [CN]
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)
EP 3382690 A1 20181003; EP 3382690 B1 20210421; CN 108696803 A 20181023; JP 2018169557 A 20181101; JP 6825962 B2 20210203
DOCDB simple family (application)
EP 18162949 A 20180320; CN 201810242930 A 20180322; JP 2017068407 A 20170330