CN102098599A - Loudspeaker box structure - Google Patents
Loudspeaker box structure Download PDFInfo
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- CN102098599A CN102098599A CN2010106248214A CN201010624821A CN102098599A CN 102098599 A CN102098599 A CN 102098599A CN 2010106248214 A CN2010106248214 A CN 2010106248214A CN 201010624821 A CN201010624821 A CN 201010624821A CN 102098599 A CN102098599 A CN 102098599A
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Abstract
The invention discloses a loudspeaker box structure, comprising a front side, a back side, a top surface, a bottom surface, a left side face and a right side face, wherein, a transitional surface B is arranged between the front side and the top surface; a transitional surface C is arranged between the front surface and the bottom surface; a transitional surface D, a transitional surface E and a transitional surface F are arranged between the front side and one of the other side faces, wherein, the transitional surface E is respectively crossed with the front side, the transitional surface B and the transitional surface D; the transitional surface F is respectively crossed with the front side, the transitional surface C and the transitional surface D; the right side of the box is in bilateral symmetry; the front side of the box is in a diamond shape with multiple clipped corners, thus a certain corner transition is formed between the front side and the side face of a loudspeaker box, so as to reduce the generated diffraction influence; and each two opposite sides of the box are in a trapezoidal structure, so as to achieve the following purposes once: for the external, the acoustic diffraction influence caused by the shape is lowered, and for the internal, stronger standing waves generated by the parallel surfaces are reduced in the box.
Description
Technical field
The present invention relates to audio amplifier, especially the casing edge is to the sound diffractive effect.
Background technology
Concerning the speaker system design process, the control of the diffraction at casing edge always is an important key points in design.The frequency response unevenness that diffraction causes is very big to the influence of high-fidelity (Hi-Fi) system playback, and particularly medium-to-high grade audio amplifier, monitor speaker etc. all can be overcoming one of emphasis that diffraction makes as high-quality sound case.We can say, on the speaker product catalogue, or see that the frequency response curve that records is the one thing on acoustic baffle, may be a different matter and same loud speaker is placed on the frequency response curve that measurement (not connecing frequency divider) obtains in the casing.Squawker or high pitch loudspeaker respond more than 800Hz-1kHz and a plurality of peaks and paddy have occurred, and curve is at some convex-concave 2-3dB of frequency place, and this situation is the sure sense of hearing that influences.The deviation of great majority " pure " loudspeaker responses all is to produce sound diffraction by the tip at casing edge to cause.The edge of high-pitched driver mounting panel, the cavity that middle pitch or bass drivers are drawn by the awl basin, case ring and rack are all relevant with this problem.
U.S. loud speaker expert D ' Appolito has carried out detailed discussion [Joeseph D ' Appolito.Testing Loudspeakers to the reason of edge diffraction, (First Edition) .Audio Amateur Press, Chapter 4:Acoustical Testing of Single Drivers, 1998.59].When sound wave arrives the casing edge, can be forced to bigger expanded in volume, thereby be caused pressure drop, produce two infrasounds.The radius that D ' Appolito has also discussed round edge must have comparativity with effective wavelength,, corresponding to the 18kHz frequency this class diffraction technology in the 1-18kHz frequency range be can not help as the round edge of radius 19mm.
The degree that studies show that the sound diffraction of casing edge can impact the frequency response curve of audio amplifier really, and under the influence of sound diffraction, in some frequency band, the fluctuation ratio of frequency response curve is bigger.Therefore be necessary a kind of sound box that can weaken the casing edge diffraction of demand.
Summary of the invention
Technical problem to be solved by this invention provides a kind of loudspeaker enclosure body structure, can effectively weaken the sound diffraction at loudspeaker box edge, thereby reduces the influence of sound diffraction to the loud speaker sounding.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of loudspeaker enclosure body structure, comprise front, the back side, end face, bottom surface, left surface, right flank, be provided with excessive face B between described front and the end face, be provided with excessive face C between described front and the bottom surface, described front and wherein be provided with excessive face D between the side, be provided with respectively and described front, excessively face B, the excessive excessive face E that intersects of face D, be provided with respectively and described front, excessively face C, the excessive excessive face F that intersects of face D, the positive left-right symmetric of described casing; Angle a between described front and the excessive face B
1, 130 °≤a
1Angle a between≤140 ° of described fronts and the excessive face C
2, 130 °≤a
2≤ 140 °, the angle a between described front and the excessive face D
3, 110 °≤a
3≤ 120 °, the angle a between described front and the excessive face E
4, 150 °≤a
4≤ 160 °, the angle a between described front and the excessive face F
5, 140 °≤a
5≤ 150 °, the angle a between described excessive face E and the excessive face B
6, 130 °≤a
6≤ 140 °, the angle a between described excessive face E and the excessive face D
7, 135 °≤a
7≤ 145 °, the angle a between described excessive face F and the excessive face C
8, 130 °≤a
8≤ 140 °, the angle a between described excessive face F and the excessive face D
9, 140 °≤a
9≤ 150 °.What the casing front was selected for use is the diamond external form of positive many corner cuts, and purpose is to allow have certain corner excessive between the front of audio amplifier and the side, makes the diffraction influence of generation littler; Each opposite face of casing all is trapezoidal structure, and purpose is externally to make the sound diffraction influence that causes because of external form littler, and box house is reduced because of parallel surface produces stronger standing wave, reaches the purpose of killing two birds with one stone.
As preferably, a
1=135 °, a
2=135 °, a
3=115 °, a
4=155 °, a
5=150 °, a
6=135 °, a
7=140 °, a
8=140 °, a
9=140 °.
As preferably, a
1=135 °, a
2=135 °, a
3=120 °, a
4=155 °, a
5=150 °, a
6=135 °, a
7=145 °, a
8=140 °, a
9=145 °.
As preferably, a
1=140 °, a
2=140 °, a
3=115 °, a
4=155 °, a
5=150 °, a
6=135 °, a
7=145 °, a
8=140 °, a
9=145 °.
As preferably, a
1=135 °, a
2=135 °, a
3=115 °, a
4=153.5 °, a
5=150 °, a
6=138 °, a
7=138 °, a
8=140 °, a
9=140 °.
As preferably, a
1=135 °, a
2=135 °, a
3=115 °, a
4=155 °, a
5=143 °, a
6=135 °, a
7=140 °, a
8=133 °, a
9=147 °.
As preferably, a
1=135 °, a
2=135 °, a
3=115 °, a
4=153.5 °, a
5=150 °, a
6=135 °, a
7=140 °, a
8=133 °, a
9=147 °.
As preferably, described front is provided with loudspeaker hole, bass horn hole, and described loudspeaker hole is positioned at top, bass horn hole.
As preferably, described front is provided with the location hole that is used to install guard.
As preferably, in the described box outer surface, the corner angle that intersect between face and the face are circular arc, and this improvement makes that the sound diffraction at casing edge is littler.
The beneficial effect that the present invention is compared with prior art brought is:
The diamond external form of many corner cuts is selected in the audio amplifier front for use, and purpose is to allow have certain corner excessive between the front of audio amplifier and the side, makes the diffraction influence of generation littler; Each opposite face of casing all is trapezoidal structure, and purpose is externally to make the sound diffraction influence that causes because of external form littler, and box house is reduced because of parallel surface produces stronger standing wave, reaches the purpose of killing two birds with one stone.
Description of drawings
Fig. 1 is a casing front view of the present invention.
Fig. 2 is a casing three-dimensional structure schematic diagram of the present invention.
Fig. 3 is embodiment 1 frequency response curve figure.
Fig. 4 is embodiment 2 frequency response curve figure.
Fig. 5 is embodiment 3 frequency response curve figure.
Fig. 6 is embodiment 4 frequency response curve figure.
Fig. 7 is embodiment 5 frequency response curve figure.
Fig. 8 is embodiment 6 frequency response curve figure.
Embodiment
The invention will be further described below in conjunction with Figure of description.
Embodiment 1
As shown in Figure 1, 2, a kind of loudspeaker enclosure body structure comprises front surface A, the back side, end face, bottom surface, left surface, right flank.Be provided with excessive face B between described front surface A and the end face, be provided with excessive face C between described front surface A and the bottom surface, be provided with excessive face D between described front surface A and the right flank, be provided with respectively and described front surface A, excessively face B, the excessive excessive face E that intersects of face D, be provided with respectively and described front surface A, excessively face C, the excessive excessive face F that intersects of face D, the front surface A left-right symmetric of described casing.Described front surface A is provided with loudspeaker hole 2, bass horn hole 3, and described loudspeaker hole 2 is positioned at 3 belows, bass horn hole.Described front surface A is provided with the location hole 1 that is used to install guard, is used to install guard.In the described box outer surface, the corner angle limit 4 of intersecting between face and the face is circular arc.Angle a between described front surface A and the excessive face B
1=135 °, the angle a between described front surface A and the excessive face C
2=135 °, the angle a between described front surface A and the excessive face D
3=115 °, the angle a between described front surface A and the excessive face E
4=155 °, the angle a between described front surface A and the excessive face F
5=150 °, the angle a between described excessive face E and the excessive face B
6=135 °, the angle a between described excessive face E and the excessive face D
7=140 °, the angle a between described excessive face F and the excessive face C
8=140 °, the angle a between described excessive face F and the excessive face D
9=140 °.The front surface A of audio amplifier is selected the diamond external form of many corner cuts for use, and purpose is to allow have certain corner excessive between the front surface A of audio amplifier and the side, makes the diffraction influence of generation littler; Each opposite face B, C of casing, D are trapezoidal structures, and purpose is externally to make the sound diffraction influence that causes because of external form littler, and box house is reduced because of parallel surface produces stronger standing wave, reaches the purpose of killing two birds with one stone.Casing is measured in the anechoic chamber of Guangzhou state light, 960 cubic metres of anechoic chamber dischargeable capacitys, and measure error＜± 1dB, measurement result is not carried out smoothing processing, and as shown in Figure 3, measurement result shows that the frequency response curve of tested casing is relatively level and smooth.
Embodiment 2
As shown in Figure 1, 2, a kind of loudspeaker enclosure body structure comprises front surface A, the back side, end face, bottom surface, left surface, right flank.Be provided with excessive face B between described front surface A and the end face, be provided with excessive face C between described front surface A and the bottom surface, be provided with excessive face D between described front surface A and the right flank, be provided with respectively and described front surface A, excessively face B, the excessive excessive face E that intersects of face D, be provided with respectively and described front surface A, excessively face C, the excessive excessive face F that intersects of face D, the front surface A left-right symmetric of described casing.Described front surface A is provided with loudspeaker hole 2, bass horn hole 3, and described loudspeaker hole 2 is positioned at 3 belows, bass horn hole.Described front surface A is provided with the location hole 1 that is used to install guard, is used to install guard.In the described box outer surface, the corner angle limit 4 of intersecting between face and the face is circular arc.Angle a between described front surface A and the excessive face B
1=135 °, the angle a between described front surface A and the excessive face C
2=135 °, the angle a between described front surface A and the excessive face D
3=120 °, the angle a between described front surface A and the excessive face E
4=155 °, the angle a between described front surface A and the excessive face F
5=150 °, the angle a between described excessive face E and the excessive face B
6=135 °, the angle a between described excessive face E and the excessive face D
7=145 °, the angle a between described excessive face F and the excessive face C
8=140 °, the angle a between described excessive face F and the excessive face D
9=145 °.The front surface A of audio amplifier is selected the diamond external form of many corner cuts for use, and purpose is to allow have certain corner excessive between the front surface A of audio amplifier and the side, makes the diffraction influence of generation littler; Each opposite face B, C of casing, D are trapezoidal structures, and purpose is externally to make the sound diffraction influence that causes because of external form littler, and box house is reduced because of parallel surface produces stronger standing wave, reaches the purpose of killing two birds with one stone.Casing is measured in the anechoic chamber of Guangzhou state light, 960 cubic metres of anechoic chamber dischargeable capacitys, and measure error＜± 1dB, measurement result is not carried out smoothing processing, and as shown in Figure 4, measurement result shows that the frequency response curve of tested casing is relatively level and smooth.
Embodiment 3
As shown in Figure 1, 2, a kind of loudspeaker enclosure body structure comprises front surface A, the back side, end face, bottom surface, left surface, right flank.Be provided with excessive face B between described front surface A and the end face, be provided with excessive face C between described front surface A and the bottom surface, be provided with excessive face D between described front surface A and the right flank, be provided with respectively and described front surface A, excessively face B, the excessive excessive face E that intersects of face D, be provided with respectively and described front surface A, excessively face C, the excessive excessive face F that intersects of face D, the front surface A left-right symmetric of described casing.Described front surface A is provided with loudspeaker hole 2, bass horn hole 3, and described loudspeaker hole 2 is positioned at 3 belows, bass horn hole.Described front surface A is provided with the location hole 1 that is used to install guard, is used to install guard.In the described box outer surface, the corner angle limit 4 of intersecting between face and the face is circular arc.Angle a between described front surface A and the excessive face B
1=140 °, the angle a between described front surface A and the excessive face C
2=140 °, the angle a between described front surface A and the excessive face D
3=115 °, the angle a between described front surface A and the excessive face E
4=155 °, the angle a between described front surface A and the excessive face F
5=150 °, the angle a between described excessive face E and the excessive face B
6=135 °, the angle a between described excessive face E and the excessive face D
7=145 °, the angle a between described excessive face F and the excessive face C
8=140 °, the angle a between described excessive face F and the excessive face D
9=145 °.The front surface A of audio amplifier is selected the diamond external form of many corner cuts for use, and purpose is to allow have certain corner excessive between the front surface A of audio amplifier and the side, makes the diffraction influence of generation littler; Each opposite face B, C of casing, D are trapezoidal structures, and purpose is externally to make the sound diffraction influence that causes because of external form littler, and box house is reduced because of parallel surface produces stronger standing wave, reaches the purpose of killing two birds with one stone.Casing is measured in the anechoic chamber of Guangzhou state light, 960 cubic metres of anechoic chamber dischargeable capacitys, and measure error＜± 1dB, measurement result is not carried out smoothing processing, and as shown in Figure 5, measurement result shows that the frequency response curve of tested casing is relatively level and smooth.
Embodiment 4
As shown in Figure 1, 2, a kind of loudspeaker enclosure body structure comprises front surface A, the back side, end face, bottom surface, left surface, right flank.Be provided with excessive face B between described front surface A and the end face, be provided with excessive face C between described front surface A and the bottom surface, be provided with excessive face D between described front surface A and the right flank, be provided with respectively and described front surface A, excessively face B, the excessive excessive face E that intersects of face D, be provided with respectively and described front surface A, excessively face C, the excessive excessive face F that intersects of face D, the front surface A left-right symmetric of described casing.Described front surface A is provided with loudspeaker hole 2, bass horn hole 3, and described loudspeaker hole 2 is positioned at 3 belows, bass horn hole.Described front surface A is provided with the location hole 1 that is used to install guard, is used to install guard.In the described box outer surface, the corner angle limit 4 of intersecting between face and the face is circular arc.Angle a between described front surface A and the excessive face B
1=135 °, the angle a between described front surface A and the excessive face C
2=135 °, the angle a between described front surface A and the excessive face D
3=115 °, the angle a between described front surface A and the excessive face E
4=153.5 °, the angle a between described front surface A and the excessive face F
5=150 °, the angle a between described excessive face E and the excessive face B
6=138 °, the angle a between described excessive face E and the excessive face D
7=138 °, the angle a between described excessive face F and the excessive face C
8=140 °, the angle a between described excessive face F and the excessive face D
9=140 °.The front surface A of audio amplifier is selected the diamond external form of many corner cuts for use, and purpose is to allow have certain corner excessive between the front surface A of audio amplifier and the side, makes the diffraction influence of generation littler; Each opposite face B, C of casing, D are trapezoidal structures, and purpose is externally to make the sound diffraction influence that causes because of external form littler, and box house is reduced because of parallel surface produces stronger standing wave, reaches the purpose of killing two birds with one stone.Casing is measured in the anechoic chamber of Guangzhou state light, 960 cubic metres of anechoic chamber dischargeable capacitys, and measure error＜± 1dB, measurement result is not carried out smoothing processing, and as shown in Figure 6, measurement result shows that the frequency response curve of tested casing is relatively level and smooth.
As shown in Figure 1, 2, a kind of loudspeaker enclosure body structure comprises front surface A, the back side, end face, bottom surface, left surface, right flank.Be provided with excessive face B between described front surface A and the end face, be provided with excessive face C between described front surface A and the bottom surface, be provided with excessive face D between described front surface A and the right flank, be provided with respectively and described front surface A, excessively face B, the excessive excessive face E that intersects of face D, be provided with respectively and described front surface A, excessively face C, the excessive excessive face F that intersects of face D, the front surface A left-right symmetric of described casing.Described front surface A is provided with loudspeaker hole 2, bass horn hole 3, and described loudspeaker hole 2 is positioned at 3 belows, bass horn hole.Described front surface A is provided with the location hole 1 that is used to install guard, is used to install guard.In the described box outer surface, the corner angle limit 4 of intersecting between face and the face is circular arc.Angle a between described front surface A and the excessive face B
1=135 °, the angle a between described front surface A and the excessive face C
2=135 °, the angle a between described front surface A and the excessive face D
3=115 °, the angle a between described front surface A and the excessive face E
4=155 °, the angle a between described front surface A and the excessive face F
5=143 °, the angle a between described excessive face E and the excessive face B
6=135 °, the angle a between described excessive face E and the excessive face D
7=140 °, the angle a between described excessive face F and the excessive face C
8=133 °, the angle a between described excessive face F and the excessive face D
9=147 °.The front surface A of audio amplifier is selected the diamond external form of many corner cuts for use, and purpose is to allow have certain corner excessive between the front surface A of audio amplifier and the side, makes the diffraction influence of generation littler; Each opposite face B, C of casing, D are trapezoidal structures, and purpose is externally to make the sound diffraction influence that causes because of external form littler, and box house is reduced because of parallel surface produces stronger standing wave, reaches the purpose of killing two birds with one stone.Casing is measured in the anechoic chamber of Guangzhou state light, 960 cubic metres of anechoic chamber dischargeable capacitys, and measure error＜± 1dB, measurement result is not carried out smoothing processing, and as shown in Figure 7, measurement result shows that the frequency response curve of tested casing is relatively level and smooth.
As shown in Figure 1, 2, a kind of loudspeaker enclosure body structure comprises front surface A, the back side, end face, bottom surface, left surface, right flank.Be provided with excessive face B between described front surface A and the end face, be provided with excessive face C between described front surface A and the bottom surface, be provided with excessive face D between described front surface A and the right flank, be provided with respectively and described front surface A, excessively face B, the excessive excessive face E that intersects of face D, be provided with respectively and described front surface A, excessively face C, the excessive excessive face F that intersects of face D, the front surface A left-right symmetric of described casing.Described front surface A is provided with loudspeaker hole 2, bass horn hole 3, and described loudspeaker hole 2 is positioned at 3 belows, bass horn hole.Described front surface A is provided with the location hole 1 that is used to install guard, is used to install guard.In the described box outer surface, the corner angle limit 4 of intersecting between face and the face is circular arc.Angle a between described front surface A and the excessive face B
1=135 °, the angle a between described front surface A and the excessive face C
2=135 °, the angle a between described front surface A and the excessive face D
3=115 °, the angle a between described front surface A and the excessive face E
4=153.5 °, the angle a between described front surface A and the excessive face F
5=150 °, the angle a between described excessive face E and the excessive face B
6=135 °, the angle a between described excessive face E and the excessive face D
7=140 °, the angle a between described excessive face F and the excessive face C
8=133 °, the angle a between described excessive face F and the excessive face D
9=147 °.The front surface A of audio amplifier is selected the diamond external form of many corner cuts for use, and purpose is to allow have certain corner excessive between the front surface A of audio amplifier and the side, makes the diffraction influence of generation littler; Each opposite face B, C of casing, D are trapezoidal structures, and purpose is externally to make the sound diffraction influence that causes because of external form littler, and box house is reduced because of parallel surface produces stronger standing wave, reaches the purpose of killing two birds with one stone.Casing is measured in the anechoic chamber of Guangzhou state light, 960 cubic metres of anechoic chamber dischargeable capacitys, and measure error＜± 1dB, measurement result is not carried out smoothing processing, and as shown in Figure 8, measurement result shows that the frequency response curve of tested casing is relatively level and smooth.
Claims (10)
1. loudspeaker enclosure body structure, comprise front, the back side, end face, bottom surface, left surface, right flank, it is characterized in that: be provided with excessive face B between described front and the end face, be provided with excessive face C between described front and the bottom surface, described front and wherein be provided with excessive face D between the side, be provided with respectively and described front, excessively face B, the excessive excessive face E that intersects of face D, be provided with respectively and described front, excessively face C, the excessive excessive face F that intersects of face D, the positive left-right symmetric of described casing; Angle a between described front and the excessive face B
1, 130 °≤a
1Angle a between≤140 ° of described fronts and the excessive face C
2, 130 °≤a
2≤ 140 °, the angle a between described front and the excessive face D
3, 110 °≤a
3≤ 120 °, the angle a between described front and the excessive face E
4, 150 °≤a
4≤ 160 °, the angle a between described front and the excessive face F
5, 140 °≤a
5≤ 150 °, the angle a between described excessive face E and the excessive face B
6, 130 °≤a
6≤ 140 °, the angle a between described excessive face E and the excessive face D
7, 135 °≤a
7≤ 145 °, the angle a between described excessive face F and the excessive face C
8, 130 °≤a
8≤ 140 °, the angle a between described excessive face F and the excessive face D
9, 140 °≤a
9≤ 150 °.
2. a kind of loudspeaker enclosure body structure according to claim 1 is characterized in that: a
1=135 °, a
2=135 °, a
3=115 °, a
4=155 °, a
5=150 °, a
6=135 °, a
7=140 °, a
8=140 °, a
9=140 °.
3. a kind of loudspeaker enclosure body structure according to claim 1 is characterized in that: a
1=135 °, a
2=135 °, a
3=120 °, a
4=155 °, a
5=150 °, a
6=135 °, a
7=145 °, a
8=140 °, a
9=145 °.
4. a kind of loudspeaker enclosure body structure according to claim 1 is characterized in that: a
1=140 °, a
2=140 °, a
3=115 °, a
4=155 °, a
5=150 °, a
6=135 °, a
7=145 °, a
8=140 °, a
9=145 °.
5. a kind of loudspeaker enclosure body structure according to claim 1 is characterized in that: a
1=135 °, a
2=135 °, a
3=115 °, a
4=153.5 °, a
5=150 °, a
6=138 °, a
7=138 °, a
8=140 °, a
9=140 °.
6. a kind of loudspeaker enclosure body structure according to claim 1 is characterized in that: a
1=135 °, a
2=135 °, a
3=115 °, a
4=155 °, a
5=143 °, a
6=135 °, a
7=140 °, a
8=133 °, a
9=147 °.
7. a kind of loudspeaker enclosure body structure according to claim 1 is characterized in that: a
1=135 °, a
2=135 °, a
3=115 °, a
4=153.5 °, a
5=150 °, a
6=135 °, a
7=140 °, a
8=133 °, a
9=147 °.
8. a kind of loudspeaker enclosure body structure according to claim 1 is characterized in that: described front is provided with loudspeaker hole, bass horn hole, and described loudspeaker hole is positioned at top, bass horn hole.
9. a kind of loudspeaker enclosure body structure according to claim 1, it is characterized in that: described front is provided with the location hole that is used to install guard.
10. a kind of loudspeaker enclosure body structure according to claim 1 is characterized in that: in the described box outer surface, the corner angle that intersect between face and the face are circular arc.
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|---|---|---|---|
| CN2010106248214A CN102098599A (en) | 2010-12-31 | 2010-12-31 | Loudspeaker box structure |
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|---|---|---|---|
| CN2010106248214A CN102098599A (en) | 2010-12-31 | 2010-12-31 | Loudspeaker box structure |
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|---|---|
| CN102098599A true CN102098599A (en) | 2011-06-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103051987A (en) * | 2012-11-20 | 2013-04-17 | 浙江恒科实业有限公司 | Sound box player capable of effectively reducing standing waves |
| CN103167386A (en) * | 2011-12-13 | 2013-06-19 | 雅马哈株式会社 | Speaker |
| EP2903299A3 (en) * | 2014-01-09 | 2015-12-09 | Dolby Laboratories Licensing Corporation | Loudspeaker horn and cabinet |
| CN105187980A (en) * | 2015-09-16 | 2015-12-23 | 尚平 | Mini loudspeaker box |
| CN110622239A (en) * | 2017-06-16 | 2019-12-27 | 尤骊欣歌有限公司 | High-fidelity reproducing loudspeaker system for audio signals |
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| CN103167386A (en) * | 2011-12-13 | 2013-06-19 | 雅马哈株式会社 | Speaker |
| JP2013126023A (en) * | 2011-12-13 | 2013-06-24 | Yamaha Corp | Speaker |
| EP2605540A3 (en) * | 2011-12-13 | 2014-08-06 | Yamaha Corporation | Speaker |
| US8820471B2 (en) | 2011-12-13 | 2014-09-02 | Yamaha Corporation | Speaker |
| CN103167386B (en) * | 2011-12-13 | 2016-05-04 | 雅马哈株式会社 | Loudspeaker |
| CN103051987A (en) * | 2012-11-20 | 2013-04-17 | 浙江恒科实业有限公司 | Sound box player capable of effectively reducing standing waves |
| CN103051987B (en) * | 2012-11-20 | 2015-11-18 | 浙江恒科实业有限公司 | A kind of sound box player of effective minimizing standing wave |
| EP2903299A3 (en) * | 2014-01-09 | 2015-12-09 | Dolby Laboratories Licensing Corporation | Loudspeaker horn and cabinet |
| US9754578B2 (en) | 2014-01-09 | 2017-09-05 | Dolby Laboratories Licensing Corporation | Loudspeaker horn and cabinet |
| CN105187980A (en) * | 2015-09-16 | 2015-12-23 | 尚平 | Mini loudspeaker box |
| CN110622239A (en) * | 2017-06-16 | 2019-12-27 | 尤骊欣歌有限公司 | High-fidelity reproducing loudspeaker system for audio signals |
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Address after: 510800 Guangzhou street, Xinhua Street, Huadu District, Guangdong, China, No. 8, Jinghu Applicant after: Guoguang Electric Co., Ltd. Applicant after: Wuzhou Hengsheng Electronic Technology Co., Ltd. Applicant after: GUANGDONG MEIJIA AUDIO DEVELOPMENT CO., LTD. Address before: 510800 Guangzhou street, Xinhua Street, Huadu District, Guangdong, China, No. 8, Jinghu Applicant before: Guoguang Electric Co., Ltd. Applicant before: Wuzhou Hengsheng Electronic Technology Co., Ltd. Applicant before: Zhongshan MG Audio Development Co., Ltd. |
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Application publication date: 20110615 |