EP 3818509 B1 20220706 - EMERGENCY CALL SYSTEM OF A MOTOR VEHICLE

Title (en)

EMERGENCY CALL SYSTEM OF A MOTOR VEHICLE

Title (de)

NOTRUFSYSTEM EINES KRAFTFAHRZEUGS

Title (fr)

SYSTÈME D'APPEL D'URGENCE D'UN VÉHICULE À MOTEUR

Publication

EP 3818509 B1 20220706 (DE)

Application

EP 19726959 A 20190523

Priority

DE 102018210934 A 20180703
EP 2019063396 W 20190523

Abstract (en)

[origin: WO2020007529A1] An emergency call system of a motor vehicle comprises a digital microphone that is connected to a bus master via an automotive audio bus and is actuated by said bus master to provide a prescribed directional characteristic, wherein - the digital microphone has at least two microphone capsules, - the at least two microphone capsules are arranged symmetrically with respect to one another, - the digital microphone is arranged ahead of the location of the driver and the location of the passenger in the direction of travel, and - in the event of failure of the bus master, two microphone capsules are interconnected in series with one another with the incorrect polarity, so that a common figure-of-eight characteristic is produced, and the common signals from the digital microphone are routed out for further processing.

IPC 8 full level

G08B 25/01 (2006.01); G08B 29/00 (2006.01); G08B 29/18 (2006.01); H04R 1/32 (2006.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01)

CPC (source: EP)

G08B 25/016 (2013.01); G08B 29/00 (2013.01); G08B 29/18 (2013.01); H04R 1/326 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); H04R 2410/01 (2013.01); H04R 2430/20 (2013.01); H04R 2430/25 (2013.01)

Citation (examination)

DE 102010034237 A1 20111006 - DAIMLER AG [DE]
DE 4303093 A1 19940922 - SENNHEISER ELECTRONIC [DE]
DE 102015205686 A1 20161006 - VOLKSWAGEN AG [DE]
DE 102014013919 A1 20160324 - AUDI AG [DE]

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)

WO 2020007529 A1 20200109; DE 102018210934 A1 20200109; EP 3818509 A1 20210512; EP 3818509 B1 20220706

DOCDB simple family (application)

EP 2019063396 W 20190523; DE 102018210934 A 20180703; EP 19726959 A 20190523