Sound generator: a piezoelectric buzzer on a flexible,...

Details Sound generator: a piezoelectric buzzer on a flexible,... Sound generator: a piezoelectric buzzer on a flexible,...

2004-10-29

2009-06-23

Swarthout, Brent (Department: 2612)

Communications: electrical

Audible indication

Piezoelectric

C273S381000, C340S384100, C340S384730, C446S220000

Reexamination Certificate

active

07551061

ABSTRACT:
A sound generator and method of projecting sound that includes a piezoelectric buzzer secured to a tensioned, flexible surface of an inflatable object, the surface being under tension in response to variations of pressure within the object. The sound generator includes a sound source and a piezoelectric buzzer electrically connected with each other so that the sound source generates signals, the piezoelectric buzzer converts the signals into sounds and the tensioned, flexible surface amplifies the sounds.

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