发明名称 |
Passenger compartment noise attenuation apparatus for use in a motor vehicle |
摘要 |
An noise attenuation system disposed on a movable side glass (14) of a motor vehicle for reducing the noise within the passenger compartment. In the preferred embodiment, a piezoceramic sensor (46) and piezoceramic actuators (42, 44) are disposed on a side glass (14) below the beltline (24) of a door (10) on a motor vehicle. The actuators (42, 44) are controllably vibrated in reverse phase to a signal generated by the sensor (46) to cancel or reduce vibrations of the side glass (14). The noise transmitted into the passenger compartment by the side glass (14) is thereby significantly reduced.
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申请公布号 |
US5812684(A) |
申请公布日期 |
1998.09.22 |
申请号 |
US19950498773 |
申请日期 |
1995.07.05 |
申请人 |
FORD GLOBAL TECHNOLOGIES, INC. |
发明人 |
MARK, JOSEPH STEVEN |
分类号 |
G10K11/178;(IPC1-7):H04B1/00;H03B29/00;A61F11/06 |
主分类号 |
G10K11/178 |
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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