Patent ID: 6031926
Filing Date: 2000-02-29
Classification: G06F,G07F,H04R

Abstract:
A panel-form loudspeaker (81) comprising:a first member (2);a second member (4);a resilient suspension (3) coupling said first and second members;each of said members (2,4) comprising a stiff lightweight panel having capability to sustain and propagate input vibrational energy by bending waves in at least one operative area extending transversely of thickness to have resonant mode vibration components distributed over said at least one area and have predetermined preferential locations or sites within said area for transducers (9);a first transducer (9) mounted on said first member (2) at one of said locations or sites to vibrate said first member to cause it to resonate forming an acoustic resonator which provides an acoustic output when resonating; anda second transducer (9) mounted on said second member (4) at one of said locations or sites to vibrate said second member to cause it to resonate forming an acoustic resonator which provides an acoustic output when resonating.