公开(公告)号：US06563929B2

公开(公告)日：2003-05-13

申请号：US09927833

申请日：2001-08-10

申请人： Lae Chang Kim

发明人： Lae Chang Kim

IPC分类号： H04R300

CPC分类号： H04R1/028 ,  H04R3/00

摘要： A woofer that is capable of producing a flashing light show depending upon the volume and frequency of the sounds emitted thereby. The woofer includes at least one light emitting diode and a control circuit that are conveniently mounted on a printed circuit board at the center of the woofer at an inconspicuous location below a transparent dust cover so as to achieve a compact configuration without effecting the aesthetic appearance of the woofer. The woofer also includes a magnetic structure having at least one permanent magnet and at least one electromagnetic voice coil that is adapted to move in first and opposite directions towards and away from the permanent magnet depending upon the changing polarities of an alternating current that is supplied to the electromagnetic voice coil. An inside cone from a hollow shell that emits sounds to a listener is coupled to the electromagnetic voice coil so as to move in the first and opposite directions with the electromagnetic voice coil and thereby provide the listener with a powerful dynamic effect.

摘要翻译： 根据由此发出的声音的音量和频率，能够产生闪光的低音扬声器。 低音扬声器包括至少一个发光二极管和控制电路，其在透明防尘罩下方的不显眼位置方便地安装在低音扬声器中心的印刷电路板上，以便实现紧凑的构造而不影响美观外观 低音扬声器。 低音扬声器还包括具有至少一个永久磁铁和至少一个电磁音圈的磁性结构，该至少一个电磁音圈适于沿朝向和远离永磁体的第一和相反方向移动，这取决于交流电的变化极性， 电磁音圈。 将来自发音器的中空壳体的内锥体耦合到电磁音圈，以便与电磁音圈一起沿着第一和相反的方向移动，从而为收听者提供强大的动态效果。