Headphone earpiece
AssigneeAKG Akustische u. Kino-Gerate Gesellschaft m.b.H.
InventorsWerner Fidi, Horst Moser
Life of this patent
Estimating the term…
Abstract
A headphone earpiece for wearing on a person's ear, comprises an annular pad adapted to engage around the ear and a sound transducer having a transducer diaphragm supported within said pad so as to define a coupling space between the transducer diaphragm and the person's ear. The support means includes a rigid plate between the diaphragm and the pad which has frictional resistances distributed thereover and which may advantageously comprise the material of the plate itself or a plurality of openings or holes having acoustic frictional resistance elements therebehind or positioned in the holes. The rear portion of the support means includes a cap having perforations which covers the back portion of the transducer.
Claims14
A headphone earpiece for engagement over a person's ear, comprising a sound permeable rigid plate forming an earpiece surface having a central opening therethrough, an electroacoustic transducer located adjacent said plate and supported within the opening by said plate, and an annular resilient pad surrounding and connected to the periphery of said plate, said plate having an acoustic frictional resistance which comprises a mass of acoustic material which is effective particularly in the range of high frequencies.
A headphone earpiece for engagement over a person's ear, comprising a rigid plate forming an earpiece surface having an opening therethrough, an electroacoustic transducer located adjacent said plate and supported within the opening thereof, and an annular resilient pad surrounding and connected to the periphery of said plate, said plate being sound permeable and having an acoustic frictional resistance, said rigid plate having one ear facing surface and an opposite surface which is open to the atmosphere.
A headphone earpiece for engagement over a person's ear comprising a sound permeable rigid plate forming an earpiece surface having an opening therethrough, an electro-acoustic transducer located adjacent said plate and supported within the opening thereof, and an annular resilient pad surrounding and connected to the periphery of said plate, said plate having an acoustic frictional resistance distributed non-uniformly in the radial direction over said plate.
A headphone earpiece for engagement over a person's ear comprising a rigid plate forming an earpiece surface having a central opening therethrough, an electroacoustic transducer located adjacent said plate and supported by said plate within the opening thereof, and an annular resilient pad surrounding and connected to the periphery of said plate, said plate comprising a sound permeable sintered plastic material providing an acoustic frictional resistance.
A headphone earpiece for engagement over a person's ear, comprising a rigid sound permeable plate forming an earpiece surface having an opening therethrough, an electroacoustic transducer located adjacent said plate and supported within the opening thereof, and an annular resilient pad surrounding and connected to the periphery of said plate, said plate having an acoustic frictional resistance such that the acoustic resistance per unit of surface is constant over the entire area.
Dependencies are inferred from the claim text.