Design of a micropower current-mode log-domain analog cochlear implant

被引:29
作者
Germanovix, W [1 ]
Toumazou, C
机构
[1] Univ Estadual Londrina, Dept Elect & Elect Engn, Londrina, Parana, Brazil
[2] Univ London Imperial Coll Sci Technol & Med, Dept Elect & Elect Engn, London, England
关键词
D O I
10.1109/82.877145
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents some design concepts and circuits which are the basis of a very low-power analog cochlear prosthesis in silicon technology. The proposed methods use continuous interleaved sampling (CIS) combined with novel current-mode, micropower analog techniques such as log-domain processing, A tone-controller is presented which will allow bass and treble control tuned in an analog fashion. Electrical measurements on a silicon implementation of a single-channel cochlear implant confirm the feasibility of the proposed approach and its application in multichannel implants.
引用
收藏
页码:1023 / 1046
页数:24
相关论文
共 34 条
[1]  
[Anonymous], BIPOLAR MOS ANALOG I
[2]  
Battmer R.-D., 1995, Annals of Otology Rhinology and Laryngology, V104, P251
[3]  
Battmer R.-D., 1995, Annals of Otology Rhinology and Laryngology, V104, P254
[4]  
Buser Pierre A., 1992, Audition
[5]   Log-domain filtering and the Bernoulli cell [J].
Drakakis, EM ;
Payne, AJ ;
Toumazou, C .
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS, 1999, 46 (05) :559-571
[6]   A Bernoulli Cell-based investigation of the non-linear dynamics in log-domain structures [J].
Drakakis, EM ;
Payne, AJ .
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, 2000, 22 (2-3) :127-146
[7]  
Eddington D K, 1978, Ann Otol Rhinol Laryngol, V87, P1
[8]  
EVANS EF, 1992, MULTICHANNEL COCHLEA
[9]   LOG-DOMAIN FILTERING - AN APPROACH TO CURRENT-MODE FILTERING [J].
FREY, DR .
IEE PROCEEDINGS-G CIRCUITS DEVICES AND SYSTEMS, 1993, 140 (06) :406-416
[10]   Exponential state space filters: A generic current mode design strategy [J].
Frey, DR .
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS, 1996, 43 (01) :34-42