Global Patent Index - EP 1594344 A3

EP 1594344 A3 20060315 - Method of obtaining acoustical characteristics, hearing instrument and manufacturing method thereof

Title (en)

Method of obtaining acoustical characteristics, hearing instrument and manufacturing method thereof

Title (de)

Verfahren zum Erlangen akustischer Eigenschaften, Hörgerät und dessen Herstellungsverfahren

Title (fr)

Méthode pour obtenir des charactéristiques acoustiques, prothèse auditive et son procédé de fabrication

Publication

EP 1594344 A3 20060315 (EN)

Application

EP 05405460 A 20050803

Priority

EP 05405460 A 20050803

Abstract (en)

[origin: EP1594344A2] According to the invention, a hearing instrument comprising at least one inner microphone (6) operable to determine a sensing signal representative of an acoustic signal at a position in front of the user's eardrum - which may be an acoustic signal at a position between an ITE (or ITC or CIC) hearing instrument and the eardrum or between an earpiece and the eardrum - is used. In accordance with the invention, in front of the eardrum an acoustic signal is produced. The inner microphone creates a sensing signal representative of the acoustic signal, and the signal processing unit of the hearing instrument determines a characteristic of the user's ear canal based thereon and memorizes values indicative of the characteristic. According to a preferred embodiment, the characteristic is an acoustic coupling transfer characteristic, which is determined based on a comparison of a signal representative of the input signal of the hearing instrument's receiver and the sensing signal. In contrast to the state of the art, no control loop is necessary to adapt the gain to the ear canal characteristic, but the memorized values may be used therefor.

IPC 8 full level

H04R 25/00 (2006.01)

CPC (source: EP US)

H04R 25/70 (2013.01 - EP US); H04R 25/453 (2013.01 - EP); H04R 2225/0216 (2019.04 - EP US); H04R 2225/023 (2013.01 - EP); H04R 2225/025 (2013.01 - EP); H04R 2460/15 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1594344 A2 20051109; EP 1594344 A3 20060315

DOCDB simple family (application)

EP 05405460 A 20050803