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US6181797B1
|
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Piezo speaker for improved passenger cabin audio systems
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US6142254A
|
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Decorative speaker cover
|
|
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Method and system for updating noise estimates during pauses in an information signal
|
|
TW392416B
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Noise cancellation system for active headsets
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|
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Acoustic echo canceller
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AU7717398A
|
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Loudspeaker assembly
|
|
GB9805619D0
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Cushioned earphones
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GB9805618D0
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Headset for aircraft
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Method and apparatus for conveying audiovisual information
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|
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Active plus selective headset
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|
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|
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Active headset
|
|
GB9702086D0
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Adaptive filter
|
|
GB9700336D0
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Panel mounting arrangement for an electroacoustic transducer
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|
GB9626439D0
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A multiple panel electroacoustic transducer
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GB9624302D0
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Flat panel loudspeaker arrangement
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Electronic cancellation of DC motor noise
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GB9621523D0
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A flat panel loudspeaker arrangement and hands free telephone system using the same
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GB9619967D0
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Electroacoustic transducer arrangement
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GB9619835D0
|
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Audio system using flat panel loudspeakers
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|
US5748749A
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Active noise cancelling muffler
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