An acoustic device has a suspended sheet of a thin flexible material having a rigid rod secured along one edge. An audio frequency actuator, which is preferably a magnetostrictive actuator, is acoustically coupled to an end face of the rod. The audiofrequency actuator is supplied with an audio signal from an audio source such as player device selected from the group which includes a recording tape player, a CD player, a DVD player, and a solid state memory device.

 
Web www.patentalert.com

< Wiring substrate

< Golf club head with customizable center of gravity

> Fixed parallel plate MEMS capacitor microsensor and microsensor array and method of making same

> License management server, license management system and usage restriction method

~ 00293