Low-radiation electromagnetic earpiece

Details Low-radiation electromagnetic earpiece Low-radiation electromagnetic earpiece

2005-07-15

2009-12-29

Le, Huyen D (Department: 2614)

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

C381S409000, C381S418000

Reexamination Certificate

active

07639829

ABSTRACT:
In an electromagnetic earpiece with a housing in which a coil through which an energizing current flows as well as a membrane are arranged such that the membrane can be excited to vibrate as a result of the energizing current, the parasitic leakage field generated by the electromagnetic earpiece is be reduced. This is accomplished by internally-running connection lines optimally close together between the ends of the coil and the electrical connections of the electromagnetic earpiece so that the leakage field thereby generated is kept optimally low according to the physical principle of a double conductor, producing an advantageous electromagnetic earpiece in a hearing aid device.

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“Störsicherer Entwurf von elelcronischen Geräten und Komponenten (EMV)”, Gysel, ZHW, Departement Technik, Informatik und Naturwissenschafte Elektrotechnik und Signalverarbeitung, (2002).

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