EP 4333463 A1 20240306 - METHOD FOR MONITORING AN IN-EAR PLACEMENT OF A HEARING DEVICE
Title (en)
METHOD FOR MONITORING AN IN-EAR PLACEMENT OF A HEARING DEVICE
Title (de)
VERFAHREN ZUM ÜBERWACHEN EINER IN-OHR-PLATZIERUNG EINES HÖRGERÄTS
Title (fr)
PROCÉDÉ DE SURVEILLANCE DE PLACEMENT INTRA-AURICULAIRE D'UN DISPOSITIF AUDITIF
Publication
Application
Priority
EP 22193220 A 20220831
Abstract (en)
The invention relates to a method for monitoring an in-ear placement of a hearing device (1) which is configured to be worn at least partially in an ear canal, the hearing device (1) comprising- a microphone (20) for obtaining an audio signal from received ambient sound, and- a processing unit configured to process the audio signal, and- a receiver (30) for outputting sound to the ear canal based on the processed audio signal,- the processing unit (100) configured to apply a signal filter representing a feedback path to the audio signal and to subtract a filtered signal from the audio signal, and the processing unit (100) further configured to apply a gain model,the method comprising the steps of:- applying the signal filter, and- setting coefficients of a reference signal filter to the signal filter, wherein the coefficients are stored in the hearing device (1) and the reference signal filter represents a reference feedback path (Ho) which is associated with a target in-ear placement of the hearing device (1), and- applying a gain model to generate feedback which causes the receiver (30) to output a feedback-squealing, and- repeatedly determining an actual feedback path (H(z)) associated with an actual in-ear placement of the hearing device (1) and comparing the actual feedback path (H(z)) with the reference feedback path (Ho), untila) the actual feedback path (H(z)) equals the reference feedback path (Ho) within a predetermined margin, orb) until a predetermined timeout has elapsed.
IPC 8 full level
H04R 25/00 (2006.01)
CPC (source: EP)
H04R 25/305 (2013.01); H04R 25/453 (2013.01); H04R 2460/15 (2013.01)
Citation (applicant)
- EP 1624719 A2 20060208 - PHONAK AG [CH]
- US 6134329 A 20001017 - GAO SHAWN X [US], et al
Citation (search report)
- [X] US 2013170660 A1 20130704 - KRISTENSEN MICHAEL SMED [DK], et al
- [X] WO 2010049543 A2 20100506 - PHONAK AG [CH], et al
- [A] US 2021204074 A1 20210701 - RECKER KARRIE [US], et al
- [A] US 2021258702 A1 20210819 - THIEDE THILO VOLKER [DK], et al
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22193220 A 20220831