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US 5,708,720 AGranted
Hearing aid to be worn at the head
AssigneeSiemens Audiologische Technik GmbH
InventorWolfram Meyer
Life of this patent
Estimating the term…
Abstract
In order to improve the immunity of a hearing aid to interference caused by the penetration of high-frequency electromagnetic waves via seams and openings of the hearing aid housing, the housing is composed of at least two electrically conductive parts that are joined in electrically conductive fashion via a high-frequency seal.
Claims12
A hearing aid comprising:
- a housing adapted be worn at the head of a person, said housing containing means for receiving and amplifying audio signals including a microphone, an amplifier circuit, an earphone and a battery connected to said amplifier circuit, said microphone and said earphone;
- and
- said housing being comprised of at least two electrically conductive housing parts each having an edge, the respective edges of said housing parts facing each other and means interposed between said edges for mechanically and electrically connecting said electrically conductive housing parts and for forming a high-frequency seal.
Dependencies are inferred from the claim text.