发明名称 A LOUDSPEAKER INCORPORATING AN ELECTROMAGNETIC SCREEN AND OPTIONALLY AN INTEGRAL AMPLIFIER
摘要 A loudspeaker is provided which has an integrally formed electromagnetic screen (66, 68) or a narrow passage (61) which attenuates radiation passing therethrough. Such a loudspeaker can be driven directly from a switched mode amplifier such as a class D amplifier. This enables a reasonable audio level to be achieved from a low supply voltage.
申请公布号 WO0187004(A2) 申请公布日期 2001.11.15
申请号 WO2001GB02127 申请日期 2001.05.11
申请人 THE UNIVERSITY OF BRISTOL;GRANT, DUNCAN 发明人 GRANT, DUNCAN
分类号 H04R1/00 主分类号 H04R1/00
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