WO2003063131A1 - Dispositif de resonance et systeme enveloppant - Google Patents

Dispositif de resonance et systeme enveloppant Download PDF

Info

Publication number
WO2003063131A1
WO2003063131A1 PCT/JP2002/000362 JP0200362W WO03063131A1 WO 2003063131 A1 WO2003063131 A1 WO 2003063131A1 JP 0200362 W JP0200362 W JP 0200362W WO 03063131 A1 WO03063131 A1 WO 03063131A1
Authority
WO
WIPO (PCT)
Prior art keywords
resonance
sound
box
resonator
sounding body
Prior art date
Application number
PCT/JP2002/000362
Other languages
English (en)
Japanese (ja)
Inventor
Makoto Nagai
Akihiko Isaka
Noboru Ueno
Shohei Shiimura
Sadayoshi Yasuda
Original Assignee
Sankyo Seiki Mfg. Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sankyo Seiki Mfg. Co., Ltd. filed Critical Sankyo Seiki Mfg. Co., Ltd.
Priority to PCT/JP2002/000362 priority Critical patent/WO2003063131A1/fr
Priority to JP2003562914A priority patent/JPWO2003063131A1/ja
Publication of WO2003063131A1 publication Critical patent/WO2003063131A1/fr

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10F—AUTOMATIC MUSICAL INSTRUMENTS
    • G10F1/00—Automatic musical instruments

Definitions

  • the present invention relates to a resonance device for expanding sound generated by a sounding body such as a music box and improving sound quality, and a sound system using the resonance device.
  • the mechanisms of music boxes are well-known and are roughly classified into cylinder type and disk type.Both are housed in wooden boxes, etc., and the sound generated by the vibration valve of the music box itself is small, and there is no sound expansion device. However, the sound transmitted from the bottom plate on which the sounding mechanism is installed cannot sufficiently sound the delicate tone of the music box. Therefore, according to the music box disclosed in Japanese Utility Model Laid-Open No. 7-88993, slits 3a, 3b, and 3c are formed in the bottom plate 5 of the music box, and two sounding pieces 5a, At 5b, the vibration resonates down to the low frequencies and a reverberation effect is obtained. In other words, the vibration of the music box is transmitted to the two pieces of sound and resonates each sound at different frequencies.
  • the reverberation piece is formed on the bottom plate of the music box, the number of reverberation pieces is limited, and only a resonance effect of a limited frequency can be obtained. Furthermore, since the reverberation piece is formed within the limited range of the bottom plate, the degree of freedom of the reverberation piece shape is also limited. In addition, the sound piece is amplified by the principle of leverage, but is easily affected by the moisture content of the bottom plate and changes over time. Furthermore, the music box is a finished product in one unit, and the frequency range to be emphasized cannot be changed as desired.
  • an object of the present invention is to provide a resonance device that can resonate the sound generated by a sounding body, for example, a musical sound played by a music box, with a wider frequency range from low to high, thereby expanding the generated sound and improving the sound quality. It is to provide. Then, the frequency range to be emphasized by the resonance device is freely selected and resonated. In addition, it is intended to maintain its original function without being affected by aging even after long-term use. Also, it is easy to change the frequency band of your choice (bass, midrange, treble) according to the music and personal preference. What's more, it's about getting the reverberation time of your choice. Further, another object of the present invention is to provide a unique acoustic effect that cannot be obtained by a sounding body alone due to an appropriate arrangement combination between the sounding body and the resonance device.
  • a resonance device of the present invention includes: a resonator that resonates with generated sound of a sounding body such as a music box; and a transmission unit that transmits the generated sound of the sounding body to the resonator.
  • the resonator has a resonance box having a hollow resonance space therein, and the resonance box has an opening for emitting sound waves resonated in the resonance space to the outside.
  • depth adjusting means for adjusting the depth of the resonance space inside the resonance box with respect to a sound wave having a predetermined frequency is provided.
  • the transmission means comprises at least one leg, and the leg is It has a predetermined contact area with the sound body or other resonance box, and a shape that increases the sound pressure transmitted through the legs.
  • the leg portion includes three leg members, and is provided on a bottom surface of the resonance box.
  • the opening of the resonance box is formed in a slit shape.
  • a sounding body such as a music box, a resonator, and a transmission means for transmitting generated sound of the sounding body to the resonator, wherein the resonator resonates with the transmitted generated sound and resonates sound waves to the outside. It is configured to emit to obtain a desired acoustic effect.
  • the resonator has a resonance box having a hollow resonance space therein, and the resonance box has an opening for emitting sound waves resonated in the resonance space to the outside.
  • a plurality of the resonance boxes are provided, and a resonance space of each resonance box is formed so as to resonate with a sound wave in a predetermined frequency range.
  • the box is in contact via the transmission means.
  • the plurality of resonance boxes are a first resonance box that resonates with high-range sound waves, a second resonance box that resonates with medium-range sound waves, And a third resonance box that resonates with low-frequency sound waves.
  • the transmission means includes at least one connecting member, and the resonator is connected to the sounding body or another resonator by the connecting member.
  • the transmitting means includes a plurality of leg members provided on a bottom surface of the sounding body or the resonance box. They are in contact with each other via leg members.
  • FIG. 1 is a perspective view of one embodiment of a resonance device according to the present invention.
  • FIG. 2 is a plan view of the embodiment of FIG.
  • FIG. 3 is a sectional view taken along line 3-3 in FIG.
  • FIG. 4 is a front view showing a mode in which high-, medium-, and low-frequency parts of the resonance apparatus according to the present invention are stacked and used in a set.
  • FIG. 5 is a sectional view showing a second embodiment of the reflector of the resonator according to the present invention.
  • FIG. 6 is a front view showing a third embodiment of the leg of the resonance device according to the present invention.
  • FIG. 7 is a side view showing a fourth embodiment of the leg of the resonance device according to the present invention.
  • FIG. 8 is a schematic diagram showing one embodiment of the resonator constituting the resonator of the present invention.
  • FIG. 9 is a schematic view showing another embodiment of the resonator.
  • FIG. 10 is a schematic view showing various modified examples of the resonance box.
  • FIG. 11 is a schematic diagram showing still another modification of the resonance box.
  • FIG. 12 is a schematic diagram showing an example of the configuration of the legs of the resonance box.
  • FIG. 13 is a schematic diagram showing one embodiment of the sound system of the present invention.
  • FIG. 14 is a schematic diagram showing another embodiment of the sound system of the present invention.
  • FIGS. 15 to 19 are schematic views showing still another embodiment of the sound system of the present invention.
  • FIG. 20 is a schematic view showing still another embodiment of the resonance apparatus of the present invention.
  • FIG. 21 is a schematic diagram showing still another embodiment of the sound system of the present invention.
  • FIG. 1 is a perspective view of one embodiment of the resonance device 10 according to the present invention
  • FIG. 2 is a plan view
  • FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. Figure 4 shows the parts of the high-frequency resonance device 10-1, the mid-range resonance device 10-2, and the low-frequency resonance device 10-3.
  • FIG. 10 is a front view of a resonator set 100 showing a mode in which the resonators are stacked and used in a set.
  • -1 is a member of the high-frequency resonator
  • -2 is a member of the mid-range resonator
  • - 3 shows the components of the bass range resonance device.
  • FIGS. 2 and 3 For convenience of explanation, a mid-range resonance device 10-2 having a resonance box 12-2 as an example of a resonator as a basic component of the resonance device according to the present invention is shown in FIGS. 2 and 3.
  • Side plates 1 5-2 and 16 -2 are provided on the left and right sides of the bottom plate 14 -2, a back plate 18-2 on the back and an opening 19 with a slit 19-2 on the front.
  • the front plate 20-2 is provided.
  • the back plate 18-2 has a wooden step-like reflection inside the rectangular parallelepiped resonance box 12-2 as a depth adjusting means that has a depth difference so that it resonates with each frequency sound.
  • the plate 22-2 is fixed to the back plate 18-2 at a position inside the rear surface facing the front plate 20-2.
  • Three legs 24-2 are fixed to the lower surface 14 a-2 of the bottom plate 14-2 to form a space 25-2.
  • the upper surface plate 26-2 is fixed by providing a gap s of 1 to 2 mm between the bottom plate 14-2 and the upper surface of the stepped reflection plate 22-2. 2 is included in the box 1 2 -2.
  • the legs 24-2 as the transmission means are shown as square pillars, but may be polygonal pillars or cylinders (see FIG. 5). Further, as shown in FIG. 6, the leg portion 24a may be formed by an inverted truncated cone. Cones and pyramids (triangular pyramids, quadrangular pyramids, etc.) can be used as inverted truncated cone legs. That is, the transmission means has a function of increasing the propagation sound pressure, and is not limited to a shape or the like.
  • FIG. 4 shows an embodiment in which three resonators 10 -1, 10-2, and 10 -3 having similar shapes are stacked.
  • the high-frequency resonance device 10-1 smaller than the mid-range resonance device 10-2 has a bottom plate 14-1 with legs 24-1, side plates 15-1, 16-1, and a top plate 26. -1 and staircase reflector 2 2 -1 with back plate 1 8-1, slit 1 9
  • a resonance space 28-1 is formed in the resonance box 1 2-1 consisting of the front plate 20-1 with -1, and the bottom surface of the bottom plate 1 4-1 is spaced by legs 2 4-1. It can be placed on the upper part of the mid-range resonance device 10-2 through the provided space 25-1.
  • the mid-range resonance device 10-2 has a similar shape to the mid-range resonance device 10-2, and similarly has a bottom plate 14-3 with legs 24-3, side plates 15-3, 16-3, top plate 26-3, Larger low-frequency resonance device 10-3 consisting of back plate 18-3 with stepped reflector 22-3 and front plate 20-3 with slit 19-3 is replaced with middle-range resonance device
  • a space section 25-2 can be provided under the leg section 24-2 of 10-2.
  • Either a disk type or a cylinder type as the boxed music box 30 shown by the two-dot chain line can be placed on the top plate 26-1 of the resonator 10-1 at the top in the figure.
  • FIG. 5 shows a second embodiment of a reflector resonance device 10a using a curved reflector 23 instead of the step reflector 22 as the depth adjusting means.
  • the same reference numerals are used for members common to the above-described embodiments without adding a subscript.
  • the support of all of the above resonators 10-1, 10-2, 10-3, 10a defines a plane with three points supported by three legs 24. The pressure on its legs will be evenly applied, so that the sound will not be distorted or rattled.
  • the leg portions 24 shown in FIGS. 2 and 5 are cylindrical or prismatic, but the inverted truncated cone 24 a is used in the resonator 10 b shown in FIG. 6 as the third embodiment. To reduce the pressure receiving area to increase the transmitted sound pressure.
  • the same reference numerals are used for members common to those in the above-described embodiment without suffixes.
  • any one of the four legs may be used as in the resonator 10c of the fourth embodiment shown in FIG.
  • the leg of the book is formed on the short fixing boss 32 and a screw hole is provided vertically, and the adjusting screw 33 is screwed in to adjust the depth of screwing so that each leg transmits pressure evenly. .
  • the same members as those in the above embodiment are denoted by the same reference numerals without any subscript.
  • the vibration plate is not directly connected to the legs, but a felt or rubber is attached to the legs so that vibration is not transmitted to the lower table.
  • the idea of the configuration is basically different from that of the box of the resonance device related to the above.
  • the upper panel 26 is made of a spruce wood acoustic board with good sounding wood grain, which softens the metallic sound coming out of the diaphragm and makes the sound longer and more comfortable to the ears. Make it sound good. Furthermore, it is preferable to perform a surface treatment with particularly well-purified ceramics.
  • a conventional music box with a conventional diaphragm housed in a box hears the sound of the diaphragm directly or through the glass or plastic that makes up the box, so it usually has a metallic or hard sound. It has become.
  • the resonance apparatus of the present invention is not limited to the illustrated embodiment, and its shape, configuration, and the like deviate from the essential components of the present invention. It is expected that various changes in details and modifications such as reconfiguration of parts can be made without departing from the scope.
  • a simple hollow body 1OA as shown in FIG. 20 can be used as the resonator.
  • the internal volume can be changed, and the length of reverberation time can be changed.
  • the corresponding resonance frequency can be changed by changing the depth.
  • the shape of the resonance box body 12 is not limited to a rectangular parallelepiped, but can be made deep by forming the back plate 18 and the front plate 20 or the back plate 18 or the front plate 20 into a curved shape. Continuous changes can be made.
  • the intention of the resonance device according to the present invention is to place a sounding body other than a music box on the resonance device to amplify and resonate vibration to obtain a similar effect.
  • the resonator may not be the resonance box, and may be, for example, a resonator including parabolic curved plate members la, lb, and 1c as shown in FIG.
  • the members are connected by fixed legs 2a, 2b, 2c.
  • FIGS. 9 (a) and 9 (b) show an embodiment in which a cylindrical member 3 is used as a resonance body.
  • FIG. 9 (a) shows a fixed connecting leg 3a on the body of the cylindrical member 3, and
  • FIG. 3 a is provided at the end of the cylindrical member 3.
  • the depth 4a of the resonance box 4 may be variously modified as shown in FIGS. 10 (a) to 10 (f).
  • a not-shown partition wall is provided, a multi-layer structure is provided, or a back load horn is formed.
  • the shape may be a flat Helmhol tube as shown in FIG. 11 (a) or a drawn Helmhol tube as shown in FIG.
  • posture stabilizing legs 5a and 5b may be provided as auxiliary in addition to the three legs 2 as shown in FIG.
  • a sounding body for example, a music box 30 is placed on a resonance device, and the sound generated by the music box 30 is transmitted to the resonance device, and the resonance sound generated by the device is emitted to the outside.
  • a sounding body for example, a music box 30 is placed on a resonance device, and the sound generated by the music box 30 is transmitted to the resonance device, and the resonance sound generated by the device is emitted to the outside.
  • the vibration of the music box 30 (sound-producing body) indicated by the two-dot chain line is transmitted to the upper plate 26-1 of the high-range resonance device 10-1, and vibrates the air inside the resonance space 28-1. Let it.
  • the depth dimension composed of the back plate 18-1 and the front plate 20-1 is divided into four stages, A, B, C, and D, by the action of the stepped reflector 22-1.
  • the bass resonates with A
  • the middle resonates with B and C
  • the treble resonates with D.
  • high-frequency sound waves that selectively resonate at the respective frequencies are emitted to the outside from the slit 19-1, and furthermore, the high-frequency resonance device 10-1 itself vibrates, and the sound waves due to the high-frequency sound resonance apparatus 10-1 also vibrate. Released into the air.
  • the vibration of the high-range resonance device 10-1 is transmitted to the middle-range resonance device 10-2 via the legs 24-1 and vibrates the air inside the resonance space 28-2, and the stairs having different depth dimensions
  • the sound wave in the mid-range of the frequency that resonates due to the action of the circular reflector 22-2 is emitted to the outside from the slit 19-2.
  • stepped reflector 22-3 A low-frequency sound wave with a frequency that resonates with the light is emitted outside from the slit 19-3.
  • the box that houses the music box 30 has a wooden board on the inside and a double wall surrounding the hollow room to adjust the weight of the resonance box 12 and the size of the internal space that affect sound. You may be able to. That is, according to this configuration, the appearance and sound quality can be changed by appropriately selecting the type of the outer plate.
  • the box that makes up the conventional music box is a box that affects the sound quality by applying the same size box to a music box of the same size, regardless of the sound frequency range of the music box that is housed.
  • the weight of the car and the adjustment of the interior space were not taken into account.
  • the sound system of the present invention can be freely combined with the sounding body and the resonance device, and various configurations can be made by the combination. That is, in the above-mentioned sound system, the music box as the sounding body is simply placed on the resonance device, and no special generated sound transmission means is used, but fixed connection legs, a plurality of legs, etc. are used as the transmission means. Thus, various sound systems can be configured according to the combination of the sounding body and the resonance device.
  • the resonator 1 of FIG. 8 is connected to a music box 30 as a sounding body by fixed connecting legs 2 c, or as shown in FIGS. 14 (a) and (b).
  • the sound system is constituted by connecting the resonator 3 of the tubular member shown in FIGS. 9 (a) and 9 (b) to the music box 30 by the fixed connecting leg 3c.
  • FIGS. 15 to 19 show other embodiments of the sound system of the present invention, respectively.
  • the sound system of FIG. 15 has a high-frequency and medium-frequency resonance box 15 1 and 15 2 integrally fixed.
  • the connecting legs 15 1 a and 15 2 a are connected to the bass resonance box 15 3, and the box 15 3 is placed on the music box 30 via its legs 15 3 a. It consists of
  • the medium resonance box 16 1 is diagonally connected to the bass resonance box 16 3 by the connecting member 16 2, and
  • the music box 30 is fixed by fixed connecting legs 16 4.
  • Fig. 17, 171, 172, and 173 are high-, medium-, and low-frequency resonant boxes, respectively, and are connected to the legs 171a, 172a, and 173a.
  • the music box 30 is placed on the high-pitched resonance box via its legs 30a.
  • treble and middle resonance boxes 174, 175 are placed via legs 174a, 175a, respectively.
  • high and medium resonance boxes 176, 177 are connected by fixed connecting legs 176a, 177a.
  • the resonators 200, 201, and 202 are in contact with the side and back of the music box 30.
  • the music box 30 may be used in a state where the sound generating mechanism 30b is exposed without being stored in a box.
  • 18 1 and 19 1 are resonance boxes
  • 18 1 a and 19 l a are integrally fixed connecting legs.
  • the resonance device of the present invention By simply changing the number of steps and the size of the stepped reflector, the depth dimension can be set even when there is no stepped reflector, so that the sound of the frequency to be emphasized can be easily amplified as planned. it can. Furthermore, not only can a wide range of sounds from treble to bass be louder by using a combination of similar resonance devices, but also by selecting a resonance device, specific The sound can be selectively amplified.
  • the reverberation time can be changed by changing the height and width of the internal space of the hollow wooden box to change the volume, or by changing the board thickness.
  • an air vibration (resonance) inside the wooden box provides a vibration amplification effect.
  • the resonance device of the present invention does not necessarily need to use a resonance box, and can be configured by disposing various resonance bodies or resonance boxes in combination. Further, according to the sound system of the present invention, the sound generated by the sounding body can be expanded and the sound quality can be improved by combining the sounding body such as a music box and the resonance device in a desired manner.
  • the audible range of the middle and low frequency ranges is widened according to the configuration of the sound device of the sound system, so that sounds that cannot be heard only with the conventional sounding body can be obtained.
  • the application of the music box can be further expanded and used as an automatic music playing device.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Toys (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

L'invention concerne un dispositif de résonance (10) capable d'augmenter le timbre musical et un niveau sonore par réglage sélectif des fréquences de sons musicaux émis par une boîte à musique et constitué de parties de formes similaires de dimensions diverses pour des gammes de fréquences basses, moyennes et élevées et empilées les unes sur les autres. Ce dispositif comprend un corps de boîte (12) capable de résonner avec les sons générés à partir de la boîte à musique et trois parties de segment (24) supportant ledit corps et il est caractérisé en ce qu'un réflecteur progressif (22) permettant aux sons de fréquences spécifiées de résonner de manière sélective, aux fins d'amplification par les distances A, B, C et D dans la profondeur, est disposé dans un espace de résonance (28) dans le corps de boîte (12) et fixé sur une plaque arrière (18), en ce que des fentes sont formées dans une plaque avant (20) opposée au réflecteur progressif (22) et en ce que la boîte à musique est placée sur la plaque supérieure (26) positionnée sur l'étage supérieur du corps de boîte (12).
PCT/JP2002/000362 2002-01-18 2002-01-18 Dispositif de resonance et systeme enveloppant WO2003063131A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2002/000362 WO2003063131A1 (fr) 2002-01-18 2002-01-18 Dispositif de resonance et systeme enveloppant
JP2003562914A JPWO2003063131A1 (ja) 2002-01-18 2002-01-18 共鳴装置及びサウンドシステム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/000362 WO2003063131A1 (fr) 2002-01-18 2002-01-18 Dispositif de resonance et systeme enveloppant

Publications (1)

Publication Number Publication Date
WO2003063131A1 true WO2003063131A1 (fr) 2003-07-31

Family

ID=27590513

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/000362 WO2003063131A1 (fr) 2002-01-18 2002-01-18 Dispositif de resonance et systeme enveloppant

Country Status (2)

Country Link
JP (1) JPWO2003063131A1 (fr)
WO (1) WO2003063131A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2226791A1 (fr) 2009-03-06 2010-09-08 Yamaha Corporation Structure acoustique
JP5659326B1 (ja) * 2014-02-21 2015-01-28 米川　繁樹 オルゴール装置
CN109147732A (zh) * 2018-09-27 2019-01-04 王天仪 一种古琴共鸣桌

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522763U (fr) * 1978-08-02 1980-02-14
JPS63126892U (fr) * 1987-02-12 1988-08-18
JPH0997053A (ja) * 1995-09-29 1997-04-08 Sankyo Shoji Kk 円盤式オルゴール
JPH09237085A (ja) * 1995-12-26 1997-09-09 Victor Co Of Japan Ltd オルゴール音拡大装置
JP3068225U (ja) * 1999-10-15 2000-04-28 株式会社北一硝子 オルゴ―ル箱
JP2001034262A (ja) * 1999-07-22 2001-02-09 Ij International:Kk オルゴール
JP2001188528A (ja) * 1999-12-28 2001-07-10 Sankyo Seiki Mfg Co Ltd ディスク式オルゴール

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522763U (fr) * 1978-08-02 1980-02-14
JPS63126892U (fr) * 1987-02-12 1988-08-18
JPH0997053A (ja) * 1995-09-29 1997-04-08 Sankyo Shoji Kk 円盤式オルゴール
JPH09237085A (ja) * 1995-12-26 1997-09-09 Victor Co Of Japan Ltd オルゴール音拡大装置
JP2001034262A (ja) * 1999-07-22 2001-02-09 Ij International:Kk オルゴール
JP3068225U (ja) * 1999-10-15 2000-04-28 株式会社北一硝子 オルゴ―ル箱
JP2001188528A (ja) * 1999-12-28 2001-07-10 Sankyo Seiki Mfg Co Ltd ディスク式オルゴール

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2226791A1 (fr) 2009-03-06 2010-09-08 Yamaha Corporation Structure acoustique
CN101826323A (zh) * 2009-03-06 2010-09-08 雅马哈株式会社 声学结构
US8157052B2 (en) 2009-03-06 2012-04-17 Yamaha Corporation Acoustic structure
JP5659326B1 (ja) * 2014-02-21 2015-01-28 米川　繁樹 オルゴール装置
CN109147732A (zh) * 2018-09-27 2019-01-04 王天仪 一种古琴共鸣桌

Also Published As

Publication number Publication date
JPWO2003063131A1 (ja) 2005-05-26

Similar Documents

Publication Publication Date Title
US4164988A (en) Fine tuned, column speaker system
US5361669A (en) Passive radiator baffle panel for drum type-percussion instruments
US4714133A (en) Method and apparatus for augmentation of sound by enhanced resonance
US4206831A (en) Loudspeaker coupler
US5170436A (en) Acoustic speaker system
US6430297B1 (en) Speaker and speaker device
JP2005269633A (ja) 音響導波
KR20080052450A (ko) 악음장치(樂音裝置)
TW201136330A (en) Speaker
JP2005006053A (ja) 低音用スピーカー装置及び該低音用スピーカー装置を備えたマルチウェイスピーカー装置
US5131052A (en) Mid-range loudspeaker assembly propagating forward and backward sound waves in phase
WO2003063131A1 (fr) Dispositif de resonance et systeme enveloppant
US4147229A (en) Vibratile mode speaker cabinet
TW563093B (en) Resonance device and stereo system for resonating sound generated by a music box
WO2001010168A2 (fr) Haut-parleur
JP4468075B2 (ja) スピーカ
US5900594A (en) Speaker cabinet
JP4210718B2 (ja) 響胴放射型スピーカ
JP6928967B2 (ja) スピーカ装置
JPH0229790A (ja) 電子楽器のスピーカシステム
EP0991295A2 (fr) Haut-parleur et dispossitif à haut-parleur
JP4714804B2 (ja) 音響機器用スタンド、およびスペーサー
JP2004234019A (ja) 電子鍵盤楽器
JP2830198B2 (ja) スピーカシステム
JP2560313Y2 (ja) 電子鍵盤楽器

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2003562914

Country of ref document: JP

122 Ep: pct application non-entry in european phase