Acoustics – Plural diaphragm sound sources
Patent
1996-02-05
1999-04-27
Lee, Eddie C.
Acoustics
Plural diaphragm sound sources
181155, 181191, 381 24, 381 90, H05K 500, G10K 1100
Patent
active
058981373
ABSTRACT:
A sound A is emitted from respective left- and right-hand front speakers which are provided on a television set, in a front direction, while, regarding respective side speakers which are provided respectively on left- and right-hand sides of the television set, reflectors each having substantially a semi-conical shape are provided so as to face to a forward direction of one-side faces of respective speaker diaphragms, to radiate sounds B due to the side speakers, in the front direction. In other words, in addition to the sound A in the front direction which are emitted from the left- and right-hand front speakers, the sounds B due to said side speaker are radiated in the front direction at positions at which a sound radiated position is different in vertical direction, and in backward and forward direction from this sound A. Moreover, the arrangement is such that a radiated sound C from the other side faces of the respective speaker diaphragms of the left- and right-hand side speakers to which said reflector does not face is radiated to left- and right-hand outward faces of the television set as it is. Thus, it is possible to improve separation performance of the left- and right-hand sounds, and it is possible to generate sounds having a cubic sound feeling, an expanding feeling and a stereophonic feeling.
REFERENCES:
patent: 4646349 (1987-02-01), Puls
patent: 5027403 (1991-06-01), Short et al.
patent: 5036946 (1991-08-01), Yoshino
patent: 5274709 (1993-12-01), Koizumi
Kabushiki Kaisha Toshiba
Lee Eddie C.
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