Back to results
US 8,948,435 B2Granted
Driver unit and earphone device
AssigneeSony Corporation
InventorsYuusuke Oosato, Koji Nageno, Takahiro Suzuki
Life of this patent
Estimating the term…
Abstract
Provided is a driver unit including an acoustic conversion unit; and a housing body in which the acoustic conversion unit is housed, and in which an opening is formed. The acoustic conversion unit includes a pair of magnets arranged to face each other, a coil to which an input signal is supplied, an armature at which a vibrating part passing through the coil and arranged between the pair of magnets is formed, and a vibrating plate connected to the armature. A size of the opening is larger than 40 μm and smaller than 100 μm.
Claims11
An earphone device comprising:
- a first driver unit comprising:
- a first acoustic conversion unit;
- and
- a first housing body to house the first acoustic conversion unit, wherein a first opening is formed in the first housing body to emit sound generated by the first acoustic conversion unit to a housing of the earphone device;
- and
- a second driver unit comprising:
- a second acoustic conversion unit;
- and
- a second housing body to house the second acoustic conversion unit, wherein a second opening of diameter larger than the diameter of the first opening is formed in the second housing body to emit sound generated by the second acoustic conversion unit to the housing of the earphone device.
6 more elements
An earphone device comprising:
- at least two driver units supported by a supporting part in an inner space formed by a housing of the earphone device, wherein each of the at least two driver units comprises:
- an acoustic conversion unit, and
- a housing body to house the acoustic conversion unit, wherein an opening is formed in the housing body to emit sound generated by the acoustic conversion unit to the housing of the earphone device;
- and
- a sound conductive part, wherein sound emitted to the housing of the earphone device from the opening of each of the at least two driver units is output through the sound conductive part, wherein
- the diameter of the opening in the housing body of one of the at least two driver units is larger than the diameter of the opening in the housing body of the other driver unit.
3 more elements
Dependencies are inferred from the claim text.