公开(公告)号：US06449376B1

公开(公告)日：2002-09-10

申请号：US09399536

申请日：1999-09-20

申请人： Carlos Beltran ,  Lewis Athanas ,  David Cahill ,  Wako Iwasaki ,  Andrew Kotsatos

发明人： Carlos Beltran ,  Lewis Athanas ,  David Cahill ,  Wako Iwasaki ,  Andrew Kotsatos

IPC分类号： H04R2500

CPC分类号： H04R7/04 ,  H04R9/063

摘要： A planar-type loudspeaker is provided which includes at least two separate, substantially flat, substantially coplanar diaphragms driven by a common drive mechanism. The diaphragms are each of a material and are dimensioned so that each has only a limited number of natural modes of vibration in the frequency band in which it is to operate and that corresponding natural modes for the diaphragms are close enough to achieve beneficial mechanical coupling and acoustics interference so as to provide a generally uniform acoustic pressure response over the selected frequency band. The diaphragms are preferably coupled only through the drive mechanism and it is preferable that each diaphragm have only two natural modes of vibration in the selected frequency band.

摘要翻译： 提供了一种平面型扬声器，其包括由公共驱动机构驱动的至少两个分离的，基本平坦的基本上共面的隔膜。 隔膜各自是材料，并且其尺寸使得每个膜片在其要操作的频带中仅具有有限数量的自然振动模式，并且用于隔膜的相应的自然模式足够接近以实现有利的机械耦合和 声学干扰，以便在所选择的频带上提供大致均匀的声压响应。 隔膜优选仅通过驱动机构连接，并且优选地，每个隔膜在所选频带中仅具有两种自然的振动模式。