A window having a frame with a windowpane disposed therein is provided. A first impedance discontinuity element is disposed between the windowpane and the frame adjacent a portion of a periphery of the windowpane. A second impedance discontinuity element is disposed adjacent another portion of the periphery of the windowpane. The first and second impedance discontinuity elements have different impedances.

 
Web www.patentalert.com

< Variable disposition wide band multi-way loudspeakers

< Active/passive distributed absorber for vibration and sound radiation control

> Speaker and speaker diaphragm

> Garden speaker
~ 00216