公开(公告)号：US5887068A

公开(公告)日：1999-03-23

申请号：US583504

申请日：1996-01-05

申请人： Don E. Givogue ,  Robert G. Johnston

发明人： Don E. Givogue ,  Robert G. Johnston

IPC分类号： H04R1/20 ,  H04R1/02

CPC分类号： H04R1/20

摘要： This loudspeaker system overcomes the disadvantages of prior art bipolar loudspeaker systems in which the front and rear-mounted driver(s) are connected with the same electrical phase. It compensates for the undesirable cancellation and reinforcement effects of prior art in bipolar loudspeaker design caused by the interaction of the front and rear acoustical output of the two drivers over certain frequency ranges. The introduction of a third side-mounted driver(s) to an enclosure whose depth exceeds its width when viewed from the front compensates for the usual cancellations and reinforcements of acoustic level that would normally occur in previous bipolar loudspeaker designs. This loudspeaker uses electronic, electrical and acoustical frequency-dividing networks to allow compensation of the acoustic level and the interaction of the front, rear and side-mounted driver(s) in such a way as to provide a nearly constant acoustic level over the entire operating range of the loudspeaker. The arrangement of the three drivers and their associated electronic, electrical and acoustical frequency-dividing networks allows the attainment of a loudspeaker with a bipolar radiating characteristic that does not possess the previously unavoidable peaks and dips in acoustical output caused by reinforcement and cancellation of the acoustic outputs from the front and rear-mounted driver(s). In this loudspeaker, the low-frequency range is covered by the side-mounted driver(s) and the upper frequency range is covered by the front and rear-mounted driver(s).

摘要翻译： 该扬声器系统克服了现有技术的双极性扬声器系统的缺点，其中前和后安装的驱动器与相同的电相连接。 它补偿了现有技术在双极性扬声器设计中由于两个驱动器的前后声学输出在特定频率范围内的相互作用而引起的不利的抵消和加强效应。 将第三个侧面安装的驱动器引入到从前面观察时其深度超过其宽度的外壳将补偿通常在先前的双极型扬声器设计中通常发生的声级的取消和增强。 该扬声器使用电子，电气和声学分频网络来允许补偿前级，后部和侧面安装的驱动器的声级和相互作用，以便在整个系统中提供几乎恒定的声级 扬声器的工作范围。 三个驱动器及其相关的电子，电气和声学分频网络的布置允许实现具有双极性辐射特性的扬声器，该双极性辐射特性不具有由声学增强和消除引起的声输出中先前不可避免的峰值和下降 从前置和后置驱动程序的输出。 在这个扬声器中，低频范围被侧面安装的驱动器所覆盖，而较高的频率范围被前置和后置驱动器所覆盖。