Electrical audio signal processing systems and devices – Sound effects – Reverberators
Patent
1996-07-11
1998-07-21
Le, Huyen
Electrical audio signal processing systems and devices
Sound effects
Reverberators
381 686, 381 692, H04R 2500
Patent
active
057844712
ABSTRACT:
The invention is directed to a hearing aid with an electrodynamic acoustic transducer. Such hearing aids were previously produced by otoplastic techniques. A novel acoustic transducer which departs from the construction principle previously employed for construction of the acoustic transducer is known from the German Application P 43 29 892.2. The object of the present invention is to provide a solution for the practical use of the edged acoustic transducer in a hearing aid and to simplify the production of a hearing aid. This object is met according to the invention by a hearing aid in which the housing of the hearing aid has a movably supported ear tube in which sound waves generated by the electrodynamic acoustic transducer can be transmitted through the interior of the ear tube. As a result of the invention, the manufacture of a hearing aid is substantially simplified and manufacturing costs are dramatically reduced.
REFERENCES:
patent: 2430229 (1947-11-01), Kelsey
patent: 3197576 (1965-07-01), Martin
patent: 3408461 (1968-10-01), Langford
patent: 3983336 (1976-09-01), Malek et al.
patent: 4553627 (1985-11-01), Gastmeier
Le Huyen
Sennheiser electronic GmbH & Co. KG
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