发明名称 |
Sound generator: a piezoelectric buzzer on a flexible, tensioned surface of an inflatable object |
摘要 |
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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申请公布号 |
US7551061(B2) |
申请公布日期 |
2009.06.23 |
申请号 |
US20040976730 |
申请日期 |
2004.10.29 |
申请人 |
SING-A-TUNE BALLOONS, LLC |
发明人 |
BLACKMAN JOHN A. |
分类号 |
G08B3/10;A63H5/00;A63H27/10;G10K9/00;G10K9/12;G10K9/122;G10K15/04 |
主分类号 |
G08B3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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