HEARING APPARATUS FOR HYPOACUSIC AND DEAF PERSONS WITH LEFTOVERS OF NEUROSENSORY SENSITIVITY
surdology, in particular hearing apparatuses. SUBSTANCE: the hearing apparatus has a microphone whose signal is amplified by a preamplifier having negative feedback circuits for expansion of the dynamic range and bringing of its characteristic to conformity with the biological characteristics of the...
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Main Authors | , , |
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Format | Patent |
Language | English Russian |
Published |
20.11.2000
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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