Speaker system
First Claim
1. A speaker system comprising:
- speaker units; and
a sound radiation component for guiding acoustic waves radiated from the speaker units to a free space by causing a larger degree of air compression and expansion than in the case where acoustic waves are directly radiated to the free space with the speaker unit mounted in an enclosure alone, wherein said sound radiation component has a front cavity defined in a fashion corresponding to a peripheral portion of said speaker unit and a port for guiding an acoustic wave radiated from the speaker unit to the free space, wherein said port has a width in an intermediate portion thereof which is smaller than those of a connection between the front cavity and the port and of an outlet portion thereof and has a planar shape that is asymmetrical with respect to the axis of the port in an acoustic wave guide-out direction, and wherein the speaker system has 20% or more lower f0 than in the case where acoustic waves are directly radiated to the free space with the speaker unit mounted in the enclosure.
3 Assignments
0 Petitions
Accused Products
Abstract
A small-sized speaker system having a very excellent bass-range reproduction capability includes a sound radiation component for guiding acoustic waves radiated from the speaker units to a free space by causing a larger degree of air compression and expansion than in the case where acoustic waves are directly radiated to the free space with the speaker units mounted in corresponding enclosures of the same shape as the speaker units. The speaker system has 20% or more lower f0 than in the case where acoustic waves are directly radiated to the free space with the speaker units mounted in corresponding enclosures of the same shape as the speaker units.
22 Citations
26 Claims
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1. A speaker system comprising:
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speaker units; and
a sound radiation component for guiding acoustic waves radiated from the speaker units to a free space by causing a larger degree of air compression and expansion than in the case where acoustic waves are directly radiated to the free space with the speaker unit mounted in an enclosure alone, wherein said sound radiation component has a front cavity defined in a fashion corresponding to a peripheral portion of said speaker unit and a port for guiding an acoustic wave radiated from the speaker unit to the free space, wherein said port has a width in an intermediate portion thereof which is smaller than those of a connection between the front cavity and the port and of an outlet portion thereof and has a planar shape that is asymmetrical with respect to the axis of the port in an acoustic wave guide-out direction, and wherein the speaker system has 20% or more lower f0 than in the case where acoustic waves are directly radiated to the free space with the speaker unit mounted in the enclosure. - View Dependent Claims (7, 8)
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2. A speaker system comprising:
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a first speaker unit mounted in a first enclosure;
a second speaker unit mounted in a second enclosure; and
an intermediate member disposed between the first and second enclosures in such a manner that the first and second speaker units are opposed to each other at a predetermined distance, the intermediate member defining together with the first and second enclosures, a sound radiation component for guiding acoustic waves radiated from the first and second speaker units out to a free space, wherein said sound radiation component has a front cavity defined in a fashion corresponding to a peripheral portion of said speaker unit and a port for guiding an acoustic wave radiated from the speaker unit to the free space, wherein said port has a width in an intermediate portion thereof which is smaller than those of a connection between the front cavity and the port and of an outlet portion thereof and has a planar shape that is asymmetrical with respect to the axis of the port in an acoustic wave guide-out direction, and wherein the speaker system has 20% or more lower f0 than in the case where acoustic waves are directly radiated to the free space with the speaker unit mounted in an enclosure of the same shape as the enclosure. - View Dependent Claims (3, 10, 11, 15, 16)
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4. A speaker system comprising:
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a speaker unit mounted in an enclosure;
a wall member opposed to the speaker unit at a predetermined distance; and
an intermediate member provided between the enclosure and the wall member for defining together with the wall member and enclosure, a sound radiation component for guiding an acoustic wave radiated from the speaker unit out to a free space, wherein said sound radiation component has a front cavity defined in a fashion corresponding to a peripheral portion of said speaker unit and a port for guiding an acoustic wave radiated from the speaker unit to the free space, and wherein said port has a width in an intermediate portion thereof which is smaller than those of a connection between the front cavity and the port and of an outlet portion thereof and has a planar shape that is asymmetrical with respect to the axis of the port in an acoustic wave guide-out direction, and wherein the speaker system has 20% or more lower f0 than in the case where acoustic waves are directly radiated to the free space with the speaker unit mounted in an enclosure of the same shape as the enclosure. - View Dependent Claims (5, 12, 13, 17, 18)
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6. A speaker system comprising:
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a first speaker unit mounted in a first enclosure;
a first wall member opposed to the first speaker unit at a predetermined distance;
a first acoustic load section mounted on the first wall member and opposed to the first speaker unit;
a first intermediate member provided between the first enclosure and the first wall member for defining together with the first wall member and enclosure, a first sound radiation component for guiding an acoustic wave radiated from the first speaker unit out to a free space;
a second speaker unit mounted in a first enclosure;
a second wall member opposed to the first speaker unit at a predetermined distance;
a second acoustic load section mounted on the second wall member and opposed to the second speaker unit; and
a second intermediate member provided between the second enclosure and the second wall member for defining together with the second wall member and enclosure, a second sound radiation component for guiding an acoustic wave radiated from the second speaker unit out to a free space;
wherein the first and second speaker units are disposed to oppose to each other, wherein the first sound radiation component has a first front cavity defined in a fashion corresponding to a peripheral portion of the first speaker unit and a first port for guiding an acoustic wave radiated from the first speaker unit to the free space, wherein the second sound radiation component has a second front cavity defined in a fashion corresponding to a peripheral portion of the second speaker unit and a second port for guiding an acoustic wave radiated from the second speaker unit to the free space, wherein the first port has a width in an intermediate portion thereof which is smaller than those of a connection between the first front cavity and the first port and of a first outlet portion thereof and has a planar shape that is asymmetrical with respect to the axis of the first port in an acoustic wave guide-out direction, and wherein the second port has a width in an intermediate portion thereof which is smaller than those of a connection between the second front cavity and the second port and of a second outlet portion thereof and has a planar shape that is asymmetrical with respect to the axis of the second port in an acoustic wave guide-out direction. - View Dependent Claims (14, 19)
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9. A speaker system comprising:
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a first speaker unit mounted in a first enclosure;
a first wall member opposed to the first speaker unit at a predetermined distance;
a first acoustic load section mounted on the first wall member and opposed to the first speaker unit;
a first intermediate member provided between the first enclosure and the first wall member for defining together with the first wall member and enclosure, a first sound radiation component for guiding an acoustic wave radiated from the first speaker unit out to a free space;
a second speaker unit mounted in a first enclosure;
a second wall member opposed to the first speaker unit at a predetermined distance;
a second acoustic load section mounted on the second wall member and opposed to the second speaker unit; and
a second intermediate member provided between the second enclosure and the second wall member for defining together with the second wall member and enclosure, a second sound radiation component for guiding an acoustic wave radiated from the second speaker unit out to a free space;
wherein the first and second speaker units are disposed to oppose to each other, wherein the first sound radiation component has a first front cavity defined in a fashion corresponding to a peripheral portion of the first speaker unit and a first port for guiding an acoustic wave radiated from the first speaker unit to the free space, wherein the second sound radiation component has a second front cavity defined in a fashion corresponding to a peripheral portion of the second speaker unit and a second port for guiding an acoustic wave radiated from the second speaker unit to the free space, wherein the width of a first port decreases monotonously from the connection between a first sound radiation component and the first port, and wherein at least part of the portion of the first and second intermediate member defining the first and second sound radiation component comprises a material having a pressure absorbing characteristic. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A speaker system comprising:
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a speaker unit mounted in an enclosure;
a wall member opposed to the speaker unit at a predetermined distance;
an acoustic load section mounted on the wall member and opposed to the speaker unit; and
an intermediate member provided between the enclosure and the wall member for defining together with the wall member and enclosure, a sound radiation component for guiding an acoustic wave radiated from the speaker unit out to a free space, wherein the sound radiation component has a front cavity defined in a fashion corresponding to a peripheral portion of said speaker unit and a port for guiding an acoustic wave radiated from the speaker unit to the free space, wherein the port has a width in an intermediate portion thereof which is smaller than that of a connection between the front cavity and the port, and wherein at least part of the portion of the intermediate member defining the sound radiation component comprises a material having a pressure absorbing characteristic.
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26. A speaker system comprising:
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a first speaker unit mounted in a first enclosure;
a second speaker unit mounted in a second enclosure; and
an intermediate member disposed between the first and second enclosures in such a manner that the first and second speaker units are opposed to each other at a predetermined distance, the intermediate member defining together with the first and second enclosures, a sound radiation component for guiding acoustic waves radiated from the first and second speaker units out to a free space, wherein the sound radiation component has a front cavity defined in a fashion corresponding to a peripheral portion of said speaker unit and a port for guiding an acoustic wave radiated from the speaker unit to the free space, wherein the port has a width in an intermediate portion thereof which is smaller than that of a connection between the front cavity and the port, and wherein at least part of the portion of the intermediate member defining the sound radiation component comprises a polyurethane foam.
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Specification