EP 1276349 A1 20030115 - A hearing aid with a self-test capability
Title (en)
A hearing aid with a self-test capability
Title (de)
Hörgerät mit Selbstprüffähigkeit
Title (fr)
Appareil auditif avec capacité d'auto-test
Publication
Application
Priority
EP 01610074 A 20010709
Abstract (en)
A hearing aid with a test controller (44) for detection of a defect in the signal path of the hearing head is provided. The test controller controls a test signal generator (40) and a probe means (42) for determination of a signal parameter, such as signal level, frequency spectrum, phase characteristic, auto-correlation, cross-correlation, etc. A set of signal switches (361,...,36p) controlled by the test controller is provided for connecting a desired test signal generator or a desired probe means to a desired point in the signal path for testing of a desired part of the hearing aid. Futher signal switches (18) are provided for coupling hearing aid components into and out of the signal path of the hearing aid. <IMAGE>
IPC 1-7
IPC 8 full level
H04R 25/00 (2006.01)
CPC (source: EP)
H04R 25/305 (2013.01); H04R 25/356 (2013.01); H04R 25/505 (2013.01); H04R 25/70 (2013.01)
Citation (search report)
- [XY] US 4049930 A 19770920 - FLETCHER JAMES C ADMINISTRATOR, et al
- [YA] DE 4128172 A1 19930304 - BOSCH GMBH ROBERT [DE]
- [A] US 6118877 A 20000912 - LINDEMANN ERIC [US], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1276349 A1 20030115; EP 1276349 B1 20040915; AT E276635 T1 20041015; CA 2446465 A1 20030123; CA 2446465 C 20071023; CN 100337512 C 20070912; CN 1524398 A 20040825; DE 60105577 D1 20041021; DE 60105577 T2 20050203; DK 1276349 T3 20041011; JP 2004535144 A 20041118; JP 4489425 B2 20100623; WO 03007655 A1 20030123
DOCDB simple family (application)
EP 01610074 A 20010709; AT 01610074 T 20010709; CA 2446465 A 20020705; CN 02813688 A 20020705; DE 60105577 T 20010709; DK 01610074 T 20010709; EP 0207447 W 20020705; JP 2003513283 A 20020705