Analogue micropowered log-domain tone controller for auditory prostheses

Access Full Text

Analogue micropowered log-domain tone controller for auditory prostheses

For access to this article, please select a purchase option:

Buy article PDF
£12.50
(plus tax if applicable)
Add to cart
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)
Add to cart

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

© IEE
Published

A micropower tone-control circuit comprising two first-order log-domain filters and a subtractor built with MOS transistors in weak inversion is described. The tone-controller is capable of providing bass cut/boost and treble cut operations. This circuit is being used in new designs of a conventional (acoustic) hearing-aid and cochlear implant.

Inspec keywords: analogue processing circuits; prosthetics; circuit tuning; hearing aids; integrating circuits; MOS integrated circuits; active filters

Other keywords: auditory prostheses; analogue tone controller circuit; MOS transistors; weak inversion; cochlear implant; hearing-aid; micropowered log-domain tone controller; bass cut/boost operations; treble cut operations; subtractor; first-order log-domain filters

Subjects: Active filters and other active networks; Prosthetic and orthotic control systems; Analogue processing circuits; Prosthetics and other practical applications; Other MOS integrated circuits; Prosthetics and orthotics; Audition

References

    1. 1)
      • D.K. Eddington , W.H. Dobelle , D.E. Brackmann , M.G. Mladejovsky , J.L. Parkin . Auditory prostheses research with multiple channel intracochlearstimulation in man. Ann. Otology, Rhinology & Laryngology, Supp. 53 , 6
    2. 2)
      • R.F. Graf , W. Sheets . (1996) Encyclopaedia of electronics circuits.
    3. 3)
      • C. Toumazou , J. Ngarnmil , T.S. Lande . Micropower log-domain filter for electronic cochlea. Electron. Lett. , 22 , 1839 - 1841
    4. 4)
      • J. Markus . (1980) Modern electronics circuits reference manuals.
    5. 5)
      • D.R. Frey . Exponential state-space filters: A generic current-mode designstrategy. IEEE Trans. CAS-I , 1 , 34 - 42
    6. 6)
      • I.R. Sinclair . (1989) Audio electronics reference book.
    7. 7)
      • D.R. Frey . Log-domain filtering:an approach to current-mode filtering. IEE Proc. G , 406 - 416
    8. 8)
      • Ngarnmil, J., Toumazou, C., Lande, T.S.: `A fully tuneable micropowerlog-domain filter', 21st European Solid State Circuits Conf., ESSCIRC'95, September 1995, France.
    9. 9)
      • P. Buser , M. Imbert . (1992) Audition.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19980780
Loading

Related content

content/journals/10.1049/el_19980780
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading