EP 0823829 A2 19980211 - Digital hearing aid system
Title (en)
Digital hearing aid system
Title (de)
Digitales Hörgerätsystem
Title (fr)
Système digital de prothèse auditive
Publication
Application
Priority
US 69102896 A 19960807
Abstract (en)
A hearing aid (12,14), having alterable parameters, includes analog-to-digital input circuitry (30) for forming a digital signal representative of an incident acoustic wave. A digital signal processor (32), coupled to said input circuitry (30), forms and processes, at a first rate, first and second frequency distinguishable data streams representative, at least in part, of the digital signal. A control unit (34) coupled to said processor (32) includes circuitry for logarithmically processing at least one of the digital data streams, at a reduced rate which is less than the first rate. A parameter value storage memory (34b) is coupled to the unit (34), and an interface (38) is provided for accessing the memory (34b) and altering parametric values stored therein. <IMAGE>
IPC 1-7
IPC 8 full level
G11C 27/00 (2006.01); G10L 19/00 (2013.01); G10L 21/0364 (2013.01); H04R 3/00 (2006.01); H04R 25/00 (2006.01)
CPC (source: EP)
H04R 25/554 (2013.01); H04R 25/558 (2013.01); H04R 25/70 (2013.01); H04R 25/552 (2013.01); H04R 2225/43 (2013.01); H04R 2225/51 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0823829 A2 19980211; EP 0823829 A3 20000126; CA 2212131 A1 19980207; JP H10126895 A 19980515
DOCDB simple family (application)
EP 97305981 A 19970806; CA 2212131 A 19970731; JP 24587797 A 19970807