Speaker device
AssigneeClarion Co., Ltd.
InventorKeita Sakane
Life of this patent
Estimating the term…
Abstract
Provided is a speaker device configured so that a time lag between a sound signal and a noise cancellation signal can be prevented, worsening of high-frequency characteristics can be avoided, and acoustic characteristics can be improved. A plane diaphragm 11 includes a flexible circuit board 20. A sound voice coil pattern 21 to which drive current corresponding to a sound signal is supplied and a noise cancellation voice coil pattern 22 to which drive current corresponding to a noise cancellation signal is supplied are formed on the flexible circuit board 20 and are formed corresponding to a formed magnetic field of a magnet 13.
Claims4
A speaker device comprising:
- a plane diaphragm including a flexible circuit board, a sound voice coil, a first noise cancellation voice coil, and a second noise cancellation voice coil,
- wherein a drive current corresponding to a sound signal is supplied to the sound voice coil,
- a drive current corresponding to a noise cancellation signal is supplied to the first noise cancellation voice coil and the second noise cancellation voice coil,
- the sound voice coil, the first noise cancellation voice coil, and the second noise cancellation voice coil are formed in a pattern with correspond to magnetic field formed by a magnet,
- the sound voice coil is formed in a meander pattern across the flexible circuit board,
- the first noise cancellation voice coil and the second noise cancellation voice coil are formed along the sound voice coil,
- the first noise cancellation voice coil is disposed on one side of the sound voice coil, and
- the second noise cancellation voice coil is disposed on another side of the sound voice coil.
Dependencies are inferred from the claim text.