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US 5,073,945 AGranted
Loudspeaker system
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsSatoshi Kageyama, Suemei Fukuhara
Life of this patent
Estimating the term…
Abstract
An improved dipole type characteristic loudspeaker system has a pair of loudspeakers (1 and 2) which are mounted on the front baffle board (4) and the back baffle board (5) of a console (3) and are connected to be driven in each-other opposite phase relation and have substantially the same acoustic characteristics in the medium and high frequency range but different acoustic characteristic in low frequency range; such loudspeaker system produces good surround-sound effect when used as back loudspeakers only with small number.
Claims10
A loudspeaker system comprising:
- a loudspeaker console having a front baffle board and a back baffle board which are disposed in substantial parallelism to each other,
- a pair of loudspeakers which are mounted on respective baffle boards and operate with substantially the same characteristic with each other above a predetermined cut-off frequency but radiate sound of different level under said predetermined cut-off frequency, and
- a driving circuit for driving said two loudspeakers in each-other opposite phase relation.
Dependencies are inferred from the claim text.