Global Patent Index - EP 0823829 A3

EP 0823829 A3 2000-01-26 - Digital hearing aid system

Title (en)

Digital hearing aid system

Title (de)

Digitales Hörgerätsystem

Title (fr)

Système digital de prothèse auditive

Publication

EP 0823829 A3 (EN)

Application

EP 97305981 A

Priority

US 69102896 A

Abstract (en)

[origin: EP0823829A2] 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 (main, further and additional classification)

H04R 25/00

IPC 8 full level (invention and additional information)

G11C 27/00 (2006.01); G10L 19/00 (2006.01); H04R 3/00 (2006.01); H04R 25/00 (2006.01)

CPC (invention and additional information)

H04R 25/70 (2013.01); H04R 25/554 (2013.01); H04R 25/558 (2013.01); H04R 25/552 (2013.01); H04R 2225/43 (2013.01); H04R 2225/51 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0823829 A2 19980211; EP 0823829 A3 20000126; CA 2212131 A1 19980207; JP H10126895 A 19980515

INPADOC legal status


2000-09-20 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20000301

2000-01-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

1998-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE