A panel form loudspeaker comprises a resonant multi-mode radiator (11) which in turn comprises a plurality of substantially concentric sub-panels (20, 21, 22, 23). A plurality of analogue drivers (10) drive the radiator (11), one or more of the drivers being operational at any time. A signal level measured at the input to the loudspeaker determines the operational state of each of the drivers (10). The concentric sub-panels may take various shapes and have different areas.
申请公布号
WO02063919(A2)
申请公布日期
2002.08.15
申请号
WO2002GB00454
申请日期
2002.02.04
申请人
QINETIQ LIMITED;HERON, KENNETH, HARRY;NASH, MALCOLM;PAYNE, ANDREW, PHILIP
发明人
HERON, KENNETH, HARRY;NASH, MALCOLM;PAYNE, ANDREW, PHILIP