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专利名称：COMPACT STAND-ALONE STEREO
LOUDSPEAKER
发明人：MOSGAARD, Jes申请号：EP10723488.2申请日：20100607公开号：EP2577991B1公开日：20151223
摘要：Stereo loudspeaker in a single cabinet (CB), such as a portable stereoloudspeaker. Two dipole loudspeaker units (DLL, DLR) generate respective acousticdipole signals (L+, L-, R+, R-) in accordance with two channels on an input signal. The twodipole loudspeaker units (DLR, DLL) are closesly spaced and oriented such in relation toeach other that their respective main axes are angled (α) 70°-110°, such as 80°-100°,preferably substantially 90°, relative to each other. By placing such stereo loudspeaker ina room in front of a wall (W), reflections (RL, RR) from one side of the two dipole units'(DLL, DLR) diaphragms will reach a listener and thus serve to provide, together with thedirect sound (L, R) from the opposite side of the diaphragms, a stereo image in a widearea in the room. The dual dipole arrangement enables a one-cabinet stereo
loudspeaker with a narrow design. The dipole arrangement may be a two-way systemwith dipole tweeter units and dipole mid range units. A mono low frequency unit (WF)may be included in the cabinet (CB). The stereo loudspeaker can be configurable toeither play stereo or to play mono, i.e. the dipole units (DLL, DLR) playing the samesignals. Hereby the loudspeaker can play one channel while a similar loudspeaker playsanother channel, thus allowing such set of loudspeakers to be used in a traditional stereo
setup.
申请人：LIBRATONE AS
地址：DK
国籍：DK
代理机构：Plougmann & Vingtoft A/S
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