EP 3675524 A1 20200701 - A METHOD OF DETERMINING A STATUS OF AN ACOUSTIC FEEDBACK PATH OF A HEAD WEARABLE HEARING DEVICE AND A HEAD WEARABLE HEARING DEVICE
Title (en)
A METHOD OF DETERMINING A STATUS OF AN ACOUSTIC FEEDBACK PATH OF A HEAD WEARABLE HEARING DEVICE AND A HEAD WEARABLE HEARING DEVICE
Title (de)
VERFAHREN ZUR BESTIMMUNG EINES ZUSTANDS EINES PFADS VON AKUSTISCHEM FEEDBACK EINES AM KOPF TRAGBAREN HÖRGERÄTS SOWIE AM KOPF TRAGBARES HÖRGERÄT
Title (fr)
PROCÉDÉ DE DÉTERMINATION D'UN ÉTAT D'UN TRAJET DE RÉTROACTION ACOUSTIQUE D'UN DISPOSITIF AUDITIF PORTABLE SUR LA TÊTE ET DISPOSITIF AUDITIF PORTABLE SUR LA TÊTE
Publication
Application
Priority
EP 18248206 A 20181228
Abstract (en)
The invention relates to a method of determining a status of an acoustic feedback path (FB) of a head wearable hearing device (100),the head wearable hearing device (100) comprising a first housing (10) being located in the ear canal (420) of a user, a microphone (110, 110', 110"), and a first control system (200) configured for controlling the active vent (20) of the first housing (10) between an open state and a closed state;the first housing (10) comprising a loudspeaker (15),the method comprising:- emitting an acoustic signal (RS) from said loudspeaker (15)- measuring (503, 603) a first transfer function (AV_Open) between the loudspeaker/receiver (15) and the microphone (110) in response to the emitted signal (RS), when the active vent (20) is expected to be in an open state;- measuring (505, 605) a second transfer function (AV_Close) between the loudspeaker/receiver (15) and the microphone (110) in response to the emitted signal (RS), when the active vent (20) is expected to be in a closed state;determining the state of the active vent (20) based at least on a comparison the first and second measured transfer functions (AV_Open, AV_Close).
IPC 8 full level
H04R 25/00 (2006.01); H04R 1/10 (2006.01)
CPC (source: CN EP)
H04R 25/453 (2013.01 - EP); H04R 29/001 (2013.01 - CN); H04R 1/1016 (2013.01 - EP); H04R 25/305 (2013.01 - EP); H04R 2225/0216 (2019.04 - EP); H04R 2225/61 (2013.01 - EP); H04R 2460/05 (2013.01 - EP); H04R 2460/11 (2013.01 - EP)
Citation (search report)
- [A] EP 2835987 A1 20150211 - OTICON AS [DK]
- [A] DE 102008021613 A1 20091105 - SIEMENS MEDICAL INSTR PTE LTD [SG]
- [A] EP 3139638 A1 20170308 - OTICON AS [DK]
- [A] DE 19942707 A1 20010329 - SIEMENS AUDIOLOGISCHE TECHNIK [DE]
- [A] EP 2071872 A1 20090617 - OTICON AS [DK]
- [A] DE 10141800 C1 20030116 - SIEMENS AUDIOLOGISCHE TECHNIK [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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3675524 A1 20200701; CN 111385727 A 20200707; CN 111385727 B 20230922; DK 3675526 T3 20211025; EP 3675526 A1 20200701; EP 3675526 B1 20210728; JP 2020115636 A 20200730
DOCDB simple family (application)
EP 18248206 A 20181228; CN 201911378779 A 20191227; DK 19217727 T 20191218; EP 19217727 A 20191218; JP 2019234914 A 20191225