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Analogue micropowered log-domain tone controller for auditoryprostheses |
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| Authors: | Germanovix W. O'Neill G. Toumazou C. Drakakis F.M. Kitney R.I. Lande T.S. |
| Affiliation: | State Univ. of Londrina; |
| Abstract: | 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 |
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