Loud speaker system
First Claim
1. A room audio speaker system for use in combination with first and second boundary surfaces, said system comprising at least one cone loudspeaker having a frequency range extending at least as low as 100 Hz, and an enclosure including a closed end wall for placement closely adjacent said first boundary surface and a mounting panel on which said cone loudspeaker is mounted extending away from said end wall and forming an angle of not more than 90°
- with said end wall, said system being characterized in that;
said mounting panel provides a rear edge forming a boundary with said end wall, a side edge disposed for placement closely adjacent said second boundary surface when said end wall is closely adjacent said first boundary surface, and a front edge;
said mounting panel has a predetermined minimum dimension in a direction parallel to the outer surface of said mounting panel defining a predetermined frequency above which said panel reduces the effective radiation angle of said cone loudspeaker;
the distance along said mounting panel from the center of said cone to each of said side edge and said rear edge is not more than one-half said predetermined minimum dimension whereby when a said side or rear edge is adjacent a said boundary surface the effective radiation angle of said cone loudspeaker at frequencies below said predetermined frequency is reduced;
at least one of said boundary surfaces is a room boundary surface;
said system includes a second said cone loudspeaker; and
the distance along said enclosure between the centers of said cone loudspeakers is not greater than said predetermined minimum dimension.
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Accused Products
Abstract
A room audio speaker system for use in combination with at least one room boundary surface, the speaker comprising an enclosure having a closed end wall for placement closely adjacent the room boundary surface and a second wall extending away from the end wall and providing a front edge and a rear edge, the latter forming a boundary with the end wall. Direct radiator audio reproducer means are provided generally flush mounted generally parallel to a portion of the exposed surface of the second wall. The included angle between the end wall and that second wall portion is no more than about 90°. The distance along the second wall from the center of the reproducer means to the rear boundary edge is not more than one-half the smallest outside dimension of the second wall and the closed end wall is free from any audio reproducer means.
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Citations
14 Claims
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1. A room audio speaker system for use in combination with first and second boundary surfaces, said system comprising at least one cone loudspeaker having a frequency range extending at least as low as 100 Hz, and an enclosure including a closed end wall for placement closely adjacent said first boundary surface and a mounting panel on which said cone loudspeaker is mounted extending away from said end wall and forming an angle of not more than 90°
- with said end wall, said system being characterized in that;
said mounting panel provides a rear edge forming a boundary with said end wall, a side edge disposed for placement closely adjacent said second boundary surface when said end wall is closely adjacent said first boundary surface, and a front edge; said mounting panel has a predetermined minimum dimension in a direction parallel to the outer surface of said mounting panel defining a predetermined frequency above which said panel reduces the effective radiation angle of said cone loudspeaker; the distance along said mounting panel from the center of said cone to each of said side edge and said rear edge is not more than one-half said predetermined minimum dimension whereby when a said side or rear edge is adjacent a said boundary surface the effective radiation angle of said cone loudspeaker at frequencies below said predetermined frequency is reduced; at least one of said boundary surfaces is a room boundary surface; said system includes a second said cone loudspeaker; and the distance along said enclosure between the centers of said cone loudspeakers is not greater than said predetermined minimum dimension. - View Dependent Claims (2)
- with said end wall, said system being characterized in that;
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3. A room audio speaker system for use in combination with first and second boundary surfaces, said system comprising at least one cone loudspeaker having a frequency range extending at least as low as 100 Hz, and an enclosure including a closed end wall for placement closely adjacent said first boundary surface and a mounting panel on which said cone loudspeaker is mounted extending away from said end wall and forming an angle of not more than 90°
- with said end wall, said system being characterized in that;
said mounting panel provides a rear edge forming a boundary with said end wall, a side edge disposed for placement closely adjacent said second boundary surface when said end wall is closely adjacent said first boundary surface, and a front edge; said mounting panel has a predetermined minimum dimension in a direction parallel to the outer surface of said mounting panel defining a predetermined frequency above which said panel reduces the effective radiation angle of said cone loudspeaker; the distance along said mounting panel from the center of said cone to each of said side edge and said rear edge is not more than one-half said predetermined minimum dimension whereby when a said side or rear edge is adjacent a said boundary surface the effective radiation angle of said cone loudspeaker at frequencies below said predetermined frequency is reduced; said system is for use in combination also with a third boundary surface and at least two of said boundary surfaces are room boundary surfaces; said cone loudspeaker is the only loudspeaker of said system having a frequency range extending at least as low as 100 Hz; said mounting panel has a second side edge disposed for placement closely adjacent said third boundary surface; and
,the distance along said mounting panel from the center of said cone loudspeaker to said second side edge is not more than one-half said predetermined minimum dimension of said mounting panel.
- with said end wall, said system being characterized in that;
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4. A room audio speaker system for use in combination with first and second boundary surfaces, said system comprising at least one cone loudspeaker having a frequency range extending at least as low as 100 Hz, and an enclosure including a closed end wall for placement closely adjacent said first boundary surface and a mounting panel on which said cone loudspeaker is mounted extending away from said end wall and forming an angle of not more than 90°
- with said end wall, said system being characterized in that;
said mounting panel provides a rear edge forming a boundary with said end wall, a side edge disposed for placement closely adjacent said second boundary surface when said end wall is closely adjacent said first boundary surface, and a front edge; said mounting panel has a predetermined minimum dimension in a direction parallel to the outer surface of said mounting panel defining a predetermined frequency above which said panel reduces the effective radiation angle of said cone loudspeaker; the distance along said mounting panel from the center of said cone to each of said side edge and said rear edge is not more than one-half said predetermined minimum dimension whereby when a said side or rear edge is adjacent a said boundary surface the effective radiation angle of said cone loudspeaker at frequencies below said predetermined frequency is reduced; at least one of said boundary surfaces is a room boundary surface; and said loudspeaker has an upper cutoff frequency not higher than the frequency for which the center of said loudspeaker is one-quarter wavelength from one of said end wall and said side edge. - View Dependent Claims (5, 6)
- with said end wall, said system being characterized in that;
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7. a room audio speaker system for use in combination with at least one room boundary surface comprising:
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an enclosure having a closed end wall free from any audio reproducer means and adapted for placement closely adjacent said room boundary surface, a pair of side walls, each of said pair extending away from said end wall at an angle with respect to said end wall of no more than 90° and
providing a front edge, side edges, and a rear edge,said rear edge of each of said pair forming a boundary with said end wall, and said front edges of said pair being closely adjacent and connected to each other whereby said end wall and said side walls define a triangle in cross-section; and
,direct radiator audio reproducer means mounted on each of said pair of walls midway between said front edge and said rear edge of said each of said pair of walls for projecting sound outwardly therefrom. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification