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US 2021/0281944 A1Published application
Headphone device
AssigneeSony Corporation
InventorsKOJI NAGENO, KENICHI OIDE, SHINSUKE KANAYAMA, PINGWEE CHIA, CHINNGIAP HENG
Life of this patent
Estimating the term…
Abstract
There is provided a headphone device including: an external magnet type magnet unit that is disposed outside a voice coil, and vibrates the voice coil; and a diaphragm that is vibrated by vibration of the voice coil, and formed of a material in which a dome section having an outward concave shape on an inner circumference of the voice coil is continuous with an edge section outside the voice coil.
Claims4
A headphone device comprising:
- an external magnet type magnet unit that is disposed outside a voice coil, and vibrates the voice coil;
- and
- a diaphragm that is vibrated by vibration of the voice coil, and formed of a material in which a dome section having an outward concave shape on an inner circumference of the voice coil is continuous with an edge section outside the voice coil.
Dependencies are inferred from the claim text.