CN105230043A - Speaker unit - Google Patents
Speaker unit Download PDFInfo
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- CN105230043A CN105230043A CN201480029228.1A CN201480029228A CN105230043A CN 105230043 A CN105230043 A CN 105230043A CN 201480029228 A CN201480029228 A CN 201480029228A CN 105230043 A CN105230043 A CN 105230043A
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- 230000002194 synthesizing effect Effects 0.000 claims description 5
- 230000005236 sound signal Effects 0.000 description 48
- 238000010586 diagram Methods 0.000 description 26
- 230000015572 biosynthetic process Effects 0.000 description 8
- 239000000284 extract Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000004044 response Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
- H04R3/14—Cross-over networks
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Stereophonic System (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Even if provide a kind of sound to be reflected by wall surface and also make it possible to maintain definition and there is the speaker unit of the high design flexibility of housing.A kind of speaker unit is provided with: housing, and described housing has opening respectively in back surface and upper surface; First loudspeaker unit, described first loud speaker is arranged in the opening of described back surface; Second loudspeaker unit, described second loudspeaker unit is arranged in the opening of described upper surface; And electronic circuit, described electronic circuit is used for described first loudspeaker unit supply voice signal and supplies the signal of the component in the part range of described voice signal to described second loudspeaker unit.
Description
Technical field
The present invention relates to and be configured to make sound be reflected off the wall surface in room and the speaker unit of propagation.
Background technology
Disclose the invention of speaker unit by convention, described speaker unit comprises: shape is as quadrangular and upright thin-long casing; And the multiple loudspeaker units (such as, see patent documentation 1) be arranged on all corresponding four side surfaces of housing.This speaker unit postpones and adjusts the timing of each output audio signal in loudspeaker unit, to export acoustic beam as the directive sound wave of tool.This speaker unit exports acoustic beam towards the floor in room and ceiling and is reflected repeatedly to make acoustic beam, and therefore indirectly sound arrive audience from many directions.This configuration realizes the effect of the accurate location of the imperceptible speaker unit of wherein audience.Speaker unit described is below called as conventional speakers device.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Application Publication No.2007-37058
Patent documentation 2: Japanese Patent Application Publication No.11-055780
Summary of the invention
By problem to be solved by this invention
Speaker unit disclosed in patent documentation 1 is placed into the corner in such as room and sound is when launching from the loudspeaker unit of the wall in the face of corner, the sound launched becomes unclear, because sound is not heard in the corner in room in intermediate frequency range.Further, multiple loudspeaker unit is arranged on all corresponding four side surfaces of the housing in speaker unit disclosed in patent documentation 1 as described above.Therefore, can not cosmetic side surface, thus restriction housing design.
Therefore, even if target of the present invention is to provide the sound articulation that has and be also maintained when sound is reflected off wall surface and have the speaker unit of high flexibility at the design aspect of housing.
For the means of dealing with problems
Speaker unit according to the present invention comprises: housing, and described housing has the back surface being formed with opening and the upper surface being formed with opening; At least one first loudspeaker unit, at least one first loudspeaker unit described is disposed in the opening of described back surface; At least one second loudspeaker unit, at least one second loudspeaker unit described is disposed in the opening of described upper surface; And electronic circuit, described electronic circuit is configured to at least one first loudspeaker unit supply voice signal and at least one second loudspeaker unit supply described as the component frequency signal in the component of the frequency range of a part for the frequency range of described voice signal described.
Such as, the wall of speaker unit according to the present invention near room is placed.The sound launched from the first loudspeaker unit arranged near back surface is reflected off wall surface to propagate to room.Even if some frequency components of the sound launched are decayed by reflecting, and thus sound do not hear, described component also can be compensated by the second upwards directed loudspeaker unit.
As another form of the present invention, described speaker unit can also comprise reflector, and described reflector is disposed in the upside of at least one the second loudspeaker unit described and is configured to reflect the sound launched from least one second loudspeaker unit described towards the front side of described housing.
Described electronic circuit can be configured to the signal supplied at least one second loudspeaker unit described in the component of the intermediate frequency range of the frequency range of described voice signal.
Described housing can be divided into the multiple layers at least comprising the following: there is the opening of described upper surface and the upper strata case of accommodation at least one the second loudspeaker unit described; There is the opening of described back surface and the middle level case of accommodation at least one the first loudspeaker unit described; And hold lower floor's case of described electronic circuit.
Described speaker unit can be configured such that at least one first loudspeaker unit described comprises multiple loudspeaker unit, correspondence in multiple sound channel at least one voice signal by be supplied in described multiple loudspeaker unit each, and described electronic circuit is configured to at least one second loudspeaker unit supply described by Extraction parts frequency signal from the voice signal in each in described multiple sound channel and the signal synthesizing the signal that extracts and obtain.
Can also comprise according to speaker unit of the present invention: the first filter, described first filter is configured to the signal at least got in the middle of the audible frequency range of described voice signal the component of the intermediate frequency range comprising human speech; And second filter, described second filter is configured in the middle of the audible frequency range of described voice signal, get the signal in the component of each low-frequency range and high-frequency range, wherein, different from the signal in the component of intermediate frequency range in the component of described low-frequency range with each in described high-frequency range, wherein, the signal exported from described first filter is exported at least one second loudspeaker unit described, and the signal wherein, exported from described second filter is exported at least one first loudspeaker unit described.
Described speaker unit can be configured such that at least one second loudspeaker unit described is the intermediate frequency range loud speaker of the reduction sound reflection characteristics with low-frequency range, and described first filter is configured to get the low pass filter less than or equal to the signal in the component of the frequency range of described intermediate frequency range, and comprise the component of described low-frequency range less than or equal to the component of the frequency range of described intermediate frequency range.
Described speaker unit can be configured such that described voice signal is the stereophonic signal in R channel and L channel, described in the signal being configured such that in the correspondence one in L channel and R channel as each in the right side first loudspeaker unit of at least one the first loudspeaker unit described and left first loudspeaker unit is input in right first loudspeaker unit and left first loudspeaker unit each, and the signal obtained by synthesis R channel and L channel is input to second loudspeaker unit as at least one the second loudspeaker unit described.
Effect of the present invention
According to the present invention, likely even also realize the definition of the sound launched when being set up on the front surface without loudspeaker unit to increase the flexibility of the design aspect of housing.
Accompanying drawing explanation
Fig. 1 (A) to Fig. 1 (C) is the external view of the speaker unit according to the first embodiment of the present invention.
Fig. 2 is the view of the internal structure of diagram speaker unit.
Fig. 3 is the rearview of speaker unit under loudspeaker grid is removed situation.
Fig. 4 is the perspective view of the headset of the upper end being arranged on speaker unit.
Fig. 5 is the plane graph of the example of the installation site of diagram speaker unit.
Fig. 6 is the block diagram of the electronic circuit of diagram speaker unit.
Fig. 7 is the block diagram of the speaker unit illustrated according to a second embodiment of the present invention.
Fig. 8 (A) and Fig. 8 (B) is the view that diagram is arranged on the characteristic according to the filter on the speaker unit of the second embodiment.
Fig. 9 is the external view of speaker unit under stereo sound configuration according to the second embodiment.
Figure 10 is the view of the structure of the speaker unit illustrated according to the third embodiment of the invention.
Figure 11 is the block diagram of diagram according to the speaker unit of the 3rd embodiment.
Figure 12 (A) to Figure 12 (C) is the external view of speaker unit according to the third embodiment of the invention.
Figure 13 is the view of diagram according to the example of the installation site of the speaker unit of the 4th embodiment.
Figure 14 is the block diagram of diagram according to the electronic circuit of the speaker unit of the 4th embodiment.
Embodiment
Hereinafter, by reference to accompanying drawing, speaker unit according to an embodiment of the invention will be described.Fig. 1 (A) to Fig. 1 (C) is the external view of speaker unit according to an embodiment of the invention.Fig. 1 (A) is the front view of speaker unit, and Fig. 1 (B) is its right side view, and Fig. 1 (C) is its rearview.Fig. 2 is the view of the internal structure of diagram speaker unit.Fig. 3 is the rearview of speaker unit under loudspeaker grid is removed situation.
Speaker unit 1 comprises according to an embodiment of the invention: for holding the housing 11 of multiple loud speaker; Shape is as plectane and be arranged on floor surface with the base portion 14 of support housing 11; And the pillow 13 that shape is connected to each other as bar and by housing 11 and base portion 14.Housing 11 is supported by pillow 13 and base portion 14 and is set up uprightly in vertical direction.
The quadrangular substantially that housing 11 shape picture phases down a little towards its upper end on width.Precisely, housing 11 has quadrangular pyramid trapezoidal shape (by flatly cutting apex or head and the shape obtained from quadrangular pyramid in the plane parallel with the basal surface of pyramid).The side surface of housing 11 is 2% relative to the inclination angle of vertical line.The mounted ridge line section 19 be between two side surfaces being wherein plugged on speaker unit 1 of speaker unit 1 is positioned at the state of front side (user side).In the following description, the front direction of speaker unit be called as front to, and direction, the back side be called as rear to.Further, left and right directions is based on wherein checking that the state of speaker unit 1 defines from the user being positioned at front side.
In this speaker unit 1, loudspeaker unit is directed not in front upwards but in the wings upwards.Therefore, as illustrated in Fig. 1 (B) and Fig. 1 (C), loudspeaker grid 12 is arranged on the back of housing 11.As a result, will not be arranged on the front portion of speaker unit 1 by loudspeaker grid 12, and ornamental LED16 is arranged in the ridge line section 19 of the front surface of housing 11.
The inside of housing 11 is by two separator lined one-tenth three spaces in the vertical direction.These three spaces comprise: as the upper space of the intermediate frequency range loudspeaker enclosure 30 for holding loudspeaker unit 20; As the central space of the boombox case 31 for holding loudspeaker unit 21,22; And as the lower space of the circuit box 32 for holding electronic circuit 15.
As illustrated in Fig. 2 and Fig. 3, boombox case 31 is opened in its back surface, and sound panel 24 is arranged in this opening.This sound panel 24 is not flat in the lateral direction but bends, so that and the corner prism shape coupling of housing 11.Loudspeaker unit 21,22 is installed on sound panel 24, and bass reflex mouth 23 is formed in sound panel 24.Loudspeaker unit 21 is for R channel and is mounted for the loudspeaker unit be oriented on right back incline direction.Loudspeaker unit 22 is for L channel and is mounted for the loudspeaker unit be oriented on left back incline direction.Bass reflex mouth 23 is formed to be communicated with via the inside of conduit with boombox case 31.Sound panel 24 loudspeaker grid 12 covers.As illustrated in Fig. 1 (B), loudspeaker grid 12 is formed by wire netting and substantially flushes with housing 11.
Upper surface for the loudspeaker enclosure 30 of intermediate frequency range has wherein has installed loudspeaker unit 20 so that the opening be oriented upwardly.Headset 10 is arranged on the upside of loudspeaker unit 20, makes the sound launched from loudspeaker unit 20 upwards be reflected off headset 10 in front.
Fig. 4 is the perspective view of headset.Headset 10 comprises: the main body 101 as top with acoustic emission opening 110; Be arranged in the top board 102 on the upper surface of main body 101; And as the skirt section 106 of bottom.Main body 101 shape is substantially as cube.The base plate 103 of headset 10 has the round opening 103A located in the central portion.The diameter of opening 103A is substantially equal to the diameter of loudspeaker unit 20.
Reflector 105 (105A, 105B) is formed in main body 101.This reflector 105 is formed as two triangular surface between corresponding in the upside of two side surfaces 111,112 of otch or acoustic emission opening 110 by being connected to (a) summit 105C and (b) at the lower end being plugged on side between two side surfaces 113,114 as backboard 104 separately.Because main body 101 shape is substantially as cube, so each horizontal plane relative to such as base plate 103 in the left surface 105A of reflector 105 and right surperficial 105B forms the angle of about 45 degree.
The acoustic emission surface of loudspeaker unit 20 is disposed in below headset 10 to be shared central axial line with headset 10 by upwards vertically directed simultaneously.Further, each surface of the reflector 105 of headset 10 is in the face of the acoustic emission surface of loudspeaker unit 20, and the inclination angle on each surface of reflector 105 is about 45 degree.Therefore, as indicated by the arrow 201 in Fig. 4, the sound upwards launched from loudspeaker unit 20 is reflected off reflector 105 and propagates so that left and right directions is expanded above.Adopt this to construct, even if when upwards launching sound from loudspeaker unit 20, this sound also can be reflected off reflector 105 and propagate so as with few loss from the front portion of the side of housing 11 above left and right directions expand.
Fig. 5 is the plane graph of the example of the installation site of diagram speaker unit 1.The back surface of speaker unit 1 speaker unit 1 is wherein to the corner being installed in such as room under the state of wall.Because LED16 is arranged on the front portion of the speaker unit 1 not having loudspeaker unit and loudspeaker grid decoratedly, so different from common speaker unit, speaker unit 1 also serves as ornamental interior trim.
When voice signal is input to speaker unit 1, sound launches from the loudspeaker unit 22,21 for corresponding L channel and R channel.Because (namely loudspeaker unit 21,22 to be oriented on direction, the back side, so that in the face of wall), so the sound launched from the loudspeaker unit 21,22 for corresponding L channel and R channel be reflected off wall surface and in front upwards (that is, towards the central portion in room) propagate.When compared with the sound of other frequency range, the sound straightaway of the high-frequency range in the middle of the sound that loudspeaker unit 21,22 is launched, and the sound therefore launched from loudspeaker unit 21,22 is left wall by reflection well.Because the sound of low-frequency range launches by a small amount of spatial impression of audibility, even if so when user's listening seem this sound be send near wall surface time, user (audience) feels less discomfort.By contrast, intermediate frequency range comprises mankind's speech utterance and the mankind and to sing voice, and when the sound of intermediate frequency range is reflected off wall surface, sound decayed widely and thus do not hear, cause the definition reduced.In order to address this problem, speaker unit 1 extract from the sound L channel and R channel intermediate frequency range component and from the sound of loudspeaker unit 20 emission medium-frequency scope.Although loudspeaker unit 20 is oriented upwardly, the sound of the intermediate frequency range launched is arranged on headset 10 forward direction well on the upside of loudspeaker unit 20.As a result, user can clearly hear the sound being low to moderate high-frequency range when not having uncomfortable.
Electronic circuit 15 is disposed in the circuit box 32 of housing 11.Fig. 6 is the block diagram of the major part of diagram electronic circuit 15.Electronic circuit 15 comprises controller 50, signal processor 51, audio frequency amplifier 52, input selector 53, bluetooth (registered trade mark) telecommunication circuit 54, cable connector 55 and LED illumination circuit 56.
Controller 50 is made up of microcomputer.Optical receiving circuit 40 is connected to controller 50, and this optical receiving circuit 40 receives the infrared signal sent from infrared remote controller (not shown).Received infrared signal is converted to the signal of telecommunication and it is inputed to controller 50 by optical receiving circuit 40.Such as, based on the signal received from optical receiving circuit 40, controller 50 selects input signal in input selector 53, in signal processor 51, adjust tonequality, in audio frequency amplifier 52, adjust volume, open and close bluetooth communication circuit 54, password is set, and the illumination of control LED16.
Signal processor 51 adjusts the tonequality of the audio signal (two channel stereo signal) inputted from input selector 53.Further, signal processor 51 extracts the component of intermediate frequency range from the signal R channel and L channel, and synthesizes the component that extracts to export the signal that obtains as the audio signal in triple-track.That is, signal processor 51 functionally comprises band pass filter 66,67 and frequency mixer 68.Audio frequency amplifier 52 functionally comprises the amplifier circuit 64,65,69 amplifying the audio signal in L channel, R channel and intermediate frequency range respectively for three sound channels.Amplifier circuit 64 amplifies voice signal in L channel so that it is exported to loud speaker 22.Amplifier circuit 65 amplifies voice signal in R channel so that it is exported to loud speaker 21.
Band pass filter 66 extracts the voice signal of intermediate frequency range (such as, from 100Hz to 7kHz) so that extracted signal is exported to frequency mixer 68 from those voice signals L channel.Similarly, band pass filter 67 extracts the voice signal of intermediate frequency range so that extracted signal is exported to frequency mixer 68 from those voice signals R channel.Frequency mixer 68 synthesizes the input audio signal of the intermediate frequency range in the input audio signal of the intermediate frequency range in L channel and R channel so that the signal through synthesis is exported to amplifier 69.Amplifier 69 amplifies the signal through synthesis of intermediate frequency range so that they are exported to loudspeaker unit 20.Therefore, the sound of loudspeaker unit 20 emission medium-frequency scope in L channel and R channel.
As illustrated in Figure 5, be placed in its back surface under the state of the wall in room at speaker unit 1, the sound launched from loudspeaker unit 21,22 is reflected off wall surface.As a result, even from thin-long casing launch sound spatially impression echo.Even if the sound of intermediate frequency range becomes unclear due to the reflection relative to wall surface when this is launched, the sound of intermediate frequency range is also launched from loudspeaker unit 20, and the sound in L channel and R channel clearly echos in all frequency ranges.
Further, without loudspeaker unit or be arranged on without loudspeaker grid on the front surface of housing 11, thus the increase of flexibility is caused at the design aspect for front surface.
The intermediate frequency range that will be extracted by band pass filter 66 is the frequency range usually from 100Hz to 7kHz, but intermediate frequency range is not limited to this frequency range.Intermediate frequency range can be a part for the frequency range from 100Hz to 7kHz.Further, the frequency range will extracted by band pass filter 66 is not limited to intermediate frequency range.Even if when loudspeaker unit 20 launches the sound of the scope different from intermediate frequency range, the effect corresponding with this scope can be obtained.
Although the loudspeaker unit 21,22 arranged in the present embodiment on the back surface launches the sound of all frequency ranges, loudspeaker unit 21,22 can be launched sound based on the frequency range components will launched from upwards directed loudspeaker unit 20 by the signal removed from it.
Although two loudspeaker units 21,22 are set up on the back surface in above-described embodiment, the number of loudspeaker unit is not limited to two.Further, such as, the number of the sound channel of the sound launched is not limited to two sound channels and can is monophony (single-tone).
Note, the shape of the housing 11 of speaker unit 1 is not limited to quadrangular pyramid trapezoidal shape and can is the post shapes of such as circular cone trapezoidal shape, cylindrical shape and prism shape.
Each in loudspeaker unit 21,22 corresponds to the first loudspeaker unit.Loudspeaker unit 20 corresponds to the second loudspeaker unit.When not departing from spirit of the present invention, the element in the present embodiment can be revised.
Next second to the 4th embodiment will be described.Note, the identical Reference numeral as used in the first embodiment is used to the counter element indicating the second to the 4th embodiment, and saves its description.Here, the second to the 4th embodiment creates based on following discovery.
Common two-way loudspeaker device is made up of (such as, see patent documentation 2) the loudspeaker unit for intermediate frequency range and low-frequency range and the loudspeaker unit for high-frequency range.In these speaker units, the sound of low-frequency range and the sound of intermediate frequency range are launched from same loudspeaker unit.Further, even if when being provided with different audio frequency amplifiers for different frequency ranges, the sound of low-frequency range and the sound of intermediate frequency range are amplified by same audio frequency amplifier.Therefore, when by such as increasing low-frequency range and adjusting tonequality, intermediate frequency range is also increased a little due to this adjustment, performs control under making the state being difficult to be separated completely each other in frequency range.Further, if intermediate frequency range also increases due to the effect of low-frequency range, then regrettably, heavy load is imposed in audio frequency amplifier.
By way of parenthesis, for the design of front surface, loud speaker can be set on the back surface.Such as, the invention of the speaker unit comprising the following is disclosed: shape is as quadrangular and upright thin-long casing; And the multiple loudspeaker units (such as, see patent documentation 1) be arranged on all corresponding four side surfaces of housing.This speaker unit postpones and adjusts the timing of each output audio signal in loudspeaker unit, to export acoustic beam as the directive sound wave of tool.This speaker unit exports acoustic beam towards the floor in room and ceiling and is reflected repeatedly to make acoustic beam, and therefore indirectly sound arrive audience from many directions.This configuration realizes the effect of the accurate location of the imperceptible speaker unit of wherein audience.
Speaker unit disclosed in patent documentation 1 is placed into the corner in such as room and sound is when launching from the loudspeaker unit of the wall in the face of corner, the sound launched becomes unclear, because sound is not heard in the corner in room in intermediate frequency range.Further, multiple loudspeaker unit is arranged on all corresponding four side surfaces of the housing in speaker unit disclosed in patent documentation 1 as described above.Therefore, can not cosmetic side surface, thus restriction housing design.
Therefore, second to the 4th embodiment is developed the controllability of the improvement providing the tonequality of (i) two-way loudspeaker device to speaker unit, (ii) even if the definition be also maintained when sound is reflected off wall surface, and the high flexibility of the design aspect of (iii) housing.
With reference to figure explanation speaker unit according to a second embodiment of the present invention.Fig. 7 to Fig. 9 is the view for illustration of the second embodiment of the present invention.Fig. 7 is the block diagram of diagram speaker unit, and Fig. 8 is the view of the characteristic of diagram filter, and Fig. 9 illustrates the stereo sound configuration of use two speaker units.
Speaker unit 500 comprise the sound for launching low-frequency range and high-frequency range gamut loudspeaker unit 510 and for range loudspeaker unit 511 in the sound of emission medium-frequency scope.Such as, intermediate frequency range mainly contains human speech and frequency range from 100Hz to 7000Hz.Note, intermediate frequency range is not limited to this scope.Such as, intermediate frequency range can be the frequency range from 300Hz to 3400Hz for telephone network.High-frequency range is the frequency range higher than intermediate frequency range.Low-frequency range is the frequency range lower than intermediate frequency range.Hereinafter, the lower frequency limit of intermediate frequency range will be called as " FL ", and the upper limiting frequency of intermediate frequency range will be called as " FH ".
In block diagram in the figure 7, speaker unit 500 comprises audio signal input part 512, signal processor 501, speaker drive portion 502 and loudspeaker unit 510,511.Signal processor 501 comprise low pass filter 520,527, high pass filter 521, fader 523,524,528 and adder 525.Speaker drive portion 502 comprises amplifier 526,529.
Audio signal input part 512 input audio signal and it is supplied to low pass filter 520,527 and high pass filter 521.Low pass filter 527 is by having the signal of the frequency of the upper limiting frequency FH less than or equal to intermediate frequency range.Fig. 8 (A) illustrates the frequency response of low pass filter 527.To be adjusted by fader 528 by the gain of the audio signal of low pass filter 527 and amplified by amplifier 529, and then this audio signal is supplied to loudspeaker unit 511.The component of low-frequency range is comprised from the audio signal of low pass filter 527 output.Although this signal will be supplied to loudspeaker unit 511, loudspeaker unit 511 will be for middle scope and can not launches the sound as the low-frequency range indicated by the dotted line in Fig. 8 (A).Therefore, the sound launched from loudspeaker unit 511 is such sound of the intermediate frequency range that the filter response Fig. 8 (A) corrects by dotted line.Note, low pass filter 527 can be the band pass filter for intermediate frequency range.Fader 528 can be included in low pass filter 527.
Low pass filter 520 is by having the signal of the frequency of the lower frequency limit FL less than or equal to intermediate frequency range.Fig. 8 (B) illustrates the frequency response of low pass filter 520.Curve LPF in left side indicates the response of low pass filter 520.Adjusted by fader 523 by the gain of the audio signal of the low-frequency range of low pass filter 520, and then this audio signal is input to adder 525.High pass filter 521 is by having the signal of the frequency of the upper limiting frequency FH greater than or equal to intermediate frequency range.Fig. 8 (B) illustrates the frequency response of high pass filter.Curve HPF on right side indicates the response of high pass filter 521.Adjusted by fader 524 by the gain of the audio signal of the high-frequency range of high pass filter 521, and then this audio signal is input to adder 525.Adder 525 synthesizes the audio signal of low-frequency range and the audio signal of high-frequency range by they being added together.This audio signal through synthesis is amplified by amplifier 526 and is supplied to loudspeaker unit 510.Note, fader 523,524 can be included in low pass filter 520 and high pass filter 521 respectively.
As mentioned above, signal in signal in the component of low-frequency range and the component of high-frequency range is amplified by same amplifier, and launch from same loudspeaker unit 510 based on the sound of these signals, and the signal in the component of intermediate frequency range is amplified by the amplifier different from the amplifier for amplifying the signal in the component of low-frequency range, and be launch from from for the loudspeaker unit launched based on the loudspeaker unit of the sound of the signal the component of low-frequency range is different based on the sound of the signal in the component of intermediate frequency range.This configuration makes two-way loudspeaker device that high-frequency range, intermediate frequency range and low-frequency range can be made separated from one another, thus is convenient to independently Gain tuning.And, in the conventional speakers device with the frequency band being divided into treble band and middle vocal cores and bass band, when increasing low-frequency range, such as, the gain of intermediate frequency range increases due to the increase of low-frequency range, the tonequality of intermediate frequency range is changed, and bears the amplifier be placed in for amplifying middle pitch and bass.But in speaker unit 500 illustrated in Fig. 7 to Fig. 9, even if when increasing low-frequency range, intermediate frequency range is also unaffected, makes tonequality not be changed, and to be free of a burdenly placed on loudspeaker unit.
Note, loudspeaker unit 510 can be arranged on the back surface of device in this embodiment.
Fig. 9 is the view that diagram uses separately the stereo sound configuration of illustrated two speaker units 500 in the figure 7.This stereophonic loud-speaker system comprises the speaker unit 500L for L channel and the speaker unit 500R for R channel.Figure 10 is the view of the monolithic devices boombox device 505 illustrated according to the third embodiment of the invention.This speaker unit 505 uses the scope separation method of two-way loudspeaker illustrated in Fig. 7 to Fig. 9 to configure.
Speaker unit 505 in Figure 10 comprises: be arranged on the loudspeaker unit 511C for intermediate frequency range on the front surface of speaker unit 505; And gamut loudspeaker unit 510L, 510R (for L channel and R channel) of being arranged on the back surface of speaker unit 505.In Fig. 10, the loudspeaker unit 511C for intermediate frequency range arranged on the front surface still can be oriented on other direction by directed forward.Such as, speaker unit can be configured such that loudspeaker unit is oriented upwardly, and can arrange reflector and upwards reflect launched sound wave in front.
Figure 11 is the block diagram of speaker unit 505 illustrated in diagram Figure 10.As illustrated in this block diagram, signal processor 501 comprises low pass filter 520L, 520R, 527L, 527R, high pass filter 521L, 521R, fader 523L, 523R, 524L, 524R, 528L, 528R and adder 525L, 525R, 530C.Speaker drive portion 502 comprises amplifier 526L, 526R, 529C.
Left channel audio signal input part 512L inputs the audio signal in L channel and it is supplied to low pass filter 520L, 527L and high pass filter 521L.Low pass filter 520L is by having the signal of the frequency of the lower frequency limit FL less than or equal to intermediate frequency range.Adjusted by fader 523L by the gain of the audio signal of the low-frequency range of low pass filter 520L, and then this audio signal is input to adder 525L.High pass filter 521L is by having the signal of the frequency of the upper limiting frequency FH greater than or equal to intermediate frequency range.Adjusted by fader 524L by the gain of the audio signal of the high-frequency range of high pass filter 521L, and then this audio signal is input to adder 525L.Adder 525L is by the audio signal of the audio signal and high-frequency range that they are added together the low-frequency range of synthesizing in L channel.This audio signal through synthesis is amplified by amplifier 526L and is supplied to loudspeaker unit 510L.Note, fader 523L, 524L can be included in low pass filter 520L and high pass filter 521L respectively.
Right channel audio signal input part 512R inputs the audio signal in R channel and it is supplied to low pass filter 520R, 527R and high pass filter 521R.
Low pass filter 520R is by having the signal of the frequency of the lower frequency limit FL less than or equal to intermediate frequency range.Adjusted by fader 523R by the gain of the audio signal of the low-frequency range of low pass filter 520R, and then this audio signal is input to adder 525R.High pass filter 521R is by having the signal of the frequency of the upper limiting frequency FH greater than or equal to intermediate frequency range.Adjusted by fader 524R by the gain of the audio signal of the high-frequency range of high pass filter 521R, and then this audio signal is input to adder 525R.Adder 525R is by the audio signal of the audio signal and high-frequency range that they are added together the low-frequency range of synthesizing in R channel.This audio signal through synthesis is amplified by amplifier 526R and is supplied to loudspeaker unit 510R.Note, fader 523R, 524R can be included in low pass filter 520R and high pass filter 521R respectively.
For the low pass filter 527L of L channel by having the signal of the frequency of the upper limiting frequency FH less than or equal to intermediate frequency range.Adjusted by fader 528L by the gain of the audio signal of low pass filter 527L, and then this audio signal is input to adder 530C.For the low pass filter 527R of R channel by having the signal of the frequency of the upper limiting frequency FH less than or equal to intermediate frequency range.Adjusted by fader 528R by the gain of the audio signal of low pass filter 527R, and then this audio signal is input to adder 530C.Adder 530C is by being added together the audio signal of the intermediate frequency range synthesized in L channel and R channel by them.This audio signal through synthesis is amplified by amplifier 529C and is supplied to loudspeaker unit 511C.Note, fader 528L, 528R can be included in low pass filter 527L and low pass filter 527R respectively.
The audio signal exported from low pass filter 527L, 527R comprises the component of low-frequency range, but can not launch the sound of low-frequency range for the loudspeaker unit 511C of middle range loudspeaker unit.Therefore, the sound launched from loudspeaker unit 511C is such sound of the intermediate frequency range that the filter response Fig. 8 (A) corrects by dotted line.Note, low pass filter 527L, 527R can be the band pass filters for intermediate frequency range.
The boombox of this entirety illustrated in Figure 10 and Figure 11 is configured such that setting single loudspeaker unit 511C is on the front surface emitted through the sound of the intermediate frequency range in synthesis L channel and R channel and the sound that obtains, and two loudspeaker units 510L, the 510R arranged on the back surface launch the sound of low-frequency range and high-frequency range individually in corresponding L channel and R channel.Therefore, this speaker unit realizes the following effect except those effects realized by speaker unit illustrated in Fig. 7 to Fig. 9.
Only a little loudspeaker unit is set up on the front surface, or is set up on the front surface without loud speaker when loudspeaker unit is oriented upwardly, thus causes the improvement of the design of front surface.
Large loudspeaker unit can be arranged on the back surface, thus make likely to launch high-quality bass when there is no the deterioration of the design of front surface.
The sound of high-frequency range launches from two loudspeaker units arranged on the back surface, thus cause using the reflection generation left-right stereo sensation relative to wall.
The sound that loudspeaker unit on the front surface launches the intermediate frequency range of such as human speech is set, thus causes when not hearing sound clearly audibility.
Note, a loudspeaker unit 511C for intermediate frequency range in embodiment illustrated in Figure 10 and Figure 11 is set up on the front surface.In the stereo perception of intermediate frequency range by when being emphasized, such as, the intermediate frequency range loudspeaker unit that can be used for corresponding L channel and R channel is arranged on the front surface.
With reference to accompanying drawing, next speaker unit is according to a fourth embodiment of the invention described.This speaker unit 301 to be so shaped that in Figure 10 and Figure 11 that illustrated speaker unit 505 is modified vertically to be elongated, and the loudspeaker unit 511C arranged on the front surface is modified to be arranged on the upside of housing and upwards directed.Figure 12 (A) to Figure 12 (C) is the external view of speaker unit 301.Figure 12 (A) is the front view of speaker unit 301, and Figure 12 (B) is its right side view, and Figure 12 (C) is its rearview.
Speaker unit 301 comprises: for holding the housing 311 of multiple loud speaker; Shape is as plectane and be arranged on floor surface with the base portion 314 of support housing 311; And the pillow 313 that shape is connected to each other as bar and by housing 311 and base portion 314.Housing 311 is supported by pillow 313 and base portion 314 and is set up uprightly in vertical direction.
The quadrangular substantially that housing 311 shape picture phases down a little towards its upper end on width.Precisely, housing 311 has quadrangular pyramid trapezoidal shape (by flatly cutting apex or head and the shape obtained from quadrangular pyramid in the plane parallel with the basal surface of pyramid).The side surface of housing 311 is 2% relative to the inclination angle of vertical line.The mounted ridge line section 319 be between two side surfaces being wherein plugged on speaker unit 301 of speaker unit 301 is positioned at the state of front side (user side).In the following description, the front direction of speaker unit be called as front to, and direction, the back side be called as rear to.Further, left and right directions is based on wherein checking that the state of speaker unit 301 defines from the user being positioned at front side.
In this speaker unit 301, as illustrated in Figure 12 (B) and Figure 12 (C), be provided with loudspeaker unit 510L, 510R to be oriented at rear upwards.Loudspeaker grid 312 is arranged on the back of housing 311.As a result, will not be arranged on the front portion of speaker unit 301 by loudspeaker grid 312.
The inside of housing 311 is by two separator lined one-tenth three spaces in the vertical direction.These three spaces comprise: as the upper space of the intermediate frequency range loudspeaker enclosure 330 for holding loudspeaker unit 511C; As the central space of the boombox case 331 for holding loudspeaker unit 510L, 510R; And as the lower space of the circuit box 332 for holding electronic circuit 315.
The upper surface of intermediate frequency range loudspeaker enclosure 330 has wherein has installed loudspeaker unit 511C so that the opening be oriented upwardly.Headset 310 is arranged on the upside of loudspeaker unit 511C, makes the sound launched from loudspeaker unit 511C upwards be reflected off headset 310 in front.
Note, the headset 310 in the 4th embodiment has the structure identical with the structure of headset 10 illustrated in Fig. 4.
Figure 13 is the view of the example of the installation site of diagram speaker unit 301.Speaker unit 301 is installed in the corner in such as room under the back surface of speaker unit 301 is to the state of wall.Because without loudspeaker unit or be arranged on without loudspeaker grid on the front portion of speaker unit 301, so different from common speaker unit, speaker unit 301 also serves as ornamental interior trim.
When voice signal is input to speaker unit 301, sound launches from loudspeaker unit 510L, the 510R for corresponding L channel and R channel.Because (namely loudspeaker unit 510L, 510R to be oriented on direction, the back side, so that in the face of wall), so the sound launched from loudspeaker unit 510L, the 510R for corresponding L channel and R channel is reflected off wall surface and propagates in front direction (that is, towards the central portion in room).When compared with the sound of other frequency range, the sound straightaway of the high-frequency range in the middle of the sound that loudspeaker unit 510L, 510R launch, and the sound therefore launched from loudspeaker unit 510L, 510R is reflected well leaves wall, and audience feels stereo perception thus.Because the sound of low-frequency range launches by a small amount of spatial impression of audibility, even if so when user's listening seem this sound be send near wall surface time, user (audience) feels less discomfort.By contrast, intermediate frequency range comprises mankind's speech utterance and the mankind and to sing voice, and when the sound of intermediate frequency range is reflected off wall surface, sound decayed widely and thus do not hear, cause the definition reduced.In order to address this problem, speaker unit 301 extract from the sound L channel and R channel intermediate frequency range component and from the sound of upwards directed loudspeaker unit 511C emission medium-frequency scope.Although loudspeaker unit 511C is oriented upwardly, the sound of the intermediate frequency range launched is arranged on headset 310 forward direction well on the upside of loudspeaker unit 511C.As a result, user can clearly hear the sound being low to moderate high-frequency range when not having uncomfortable.
Electronic circuit 315 is disposed in the circuit box 332 of housing 311.Figure 14 is the block diagram of the major part of diagram electronic circuit 315.Electronic circuit 315 comprises controller 350, signal processor 501, audio frequency amplifier 502, input selector 353, bluetooth (registered trade mark) telecommunication circuit 354 and cable connector 355.
Controller 350 is made up of microcomputer.Optical receiving circuit 340 is connected to controller 350, and this optical receiving circuit 340 receives the infrared signal sent from infrared remote controller (not shown).Received infrared signal is converted to the signal of telecommunication and it is inputed to controller 350 by optical receiving circuit 340.Such as, based on the signal received from optical receiving circuit 340, controller 350 selects input signal in input selector 353, tonequality is adjusted in signal processor 351, in audio frequency amplifier 352, adjust volume, open and close bluetooth communication circuit 354, and password is set.
Signal processor 501 is similar with illustrated signal processor in Figure 11 in configuration.That is, signal processor 501 adjusts the tonequality of the audio signal (two channel stereo signal) inputted from input selector 353.Further, signal processor 501 from by the component extracting intermediate frequency range in the signal R channel and L channel, and synthesizes the component that extracts to export the signal that obtains as the audio signal in triple-track (that is, center channel).Speaker drive portion 502 in configuration with illustrated speaker drive category in Figure 11 seemingly.That is, speaker drive portion 502 comprises the amplifier 526L amplifying the audio signal in L channel, R channel and intermediate frequency range respectively, amplifier 526R for three sound channels and amplifier 529.Each in amplifying signal is exported to the correspondence one in loudspeaker unit 510L, loudspeaker unit 510R and loudspeaker unit 511C by speaker drive portion 502.
As illustrated in Figure 13, when under the state being placed in the wall in wherein room faced by its back surface at speaker unit 301, the sound launched from loudspeaker unit 510L, 510R is reflected off wall surface (mainly in high-frequency range).As a result, even from thin-long casing launch sound spatially impression echo.In this case, if sound comprises the sound of intermediate frequency range, then sound becomes unclear due to the reflection relative to wall surface.But in this application, the sound of intermediate frequency range is launched forward from loudspeaker unit 511C.Therefore, the sound in L channel and R channel spatially impression clearly echos in all frequency ranges.Further, without loudspeaker unit or be arranged on without loudspeaker grid on the front surface of housing 311, thus the increase of flexibility is caused at the design aspect for front surface.Further, the sound of adjacent frequency range is not launched from a loudspeaker unit, thus makes realize for high-frequency range, intermediate frequency range and low-frequency range Gain tuning independently of one another.
Note, the shape of the housing 311 of speaker unit 301 is not limited to quadrangular pyramid trapezoidal shape and can is the post shapes of such as circular cone trapezoidal shape, cylindrical shape and prism shape.When not departing from spirit of the present invention, the element in the present embodiment can be revised.Loudspeaker unit 511C upwards launches sound in the fourth embodiment, but the invention is not restricted to this structure.Such as, loudspeaker unit 511C can be configured to launch sound forward as the same in the second embodiment with the 3rd embodiment.That is, speaker unit 301 can comprise: the first filter, and described first filter is configured to the signal at least got in the middle of the audible frequency range of voice signal the component of the intermediate frequency range comprising human speech; Second filter, described second filter is configured to from the signal in the component of the signal got in the middle of the audible frequency range of voice signal in the component of the low-frequency range except the signal the component of intermediate frequency range and high-frequency range; Second loudspeaker unit, described second loudspeaker unit is configured to launch the signal exported from the first filter; And first loudspeaker unit, described first loudspeaker unit is configured to launch the signal exported from the second filter.
The explanation of Reference numeral
1: speaker unit, 10: headset, 11: housing, 15: electronic circuit, 20,21,22: loudspeaker unit, 30: intermediate frequency range loudspeaker enclosure, 31: boombox case, 32: circuit box, 105: reflector, 301,500,505: speaker unit, 310: headset, 311: housing, 315: electronic circuit, 320,321,322: loudspeaker unit, 330: intermediate frequency range loudspeaker enclosure, 331: boombox case, 332: circuit box, 501: signal processor, 502: speaker drive portion.
Claims (8)
1. a speaker unit, comprising:
Housing, described housing comprises the back surface being formed with opening and the upper surface being formed with opening;
At least one first loudspeaker unit, at least one first loudspeaker unit described is disposed in the described opening of described back surface;
At least one second loudspeaker unit, at least one second loudspeaker unit described is disposed in the described opening of described upper surface; And
Electronic circuit, described electronic circuit is configured to at least one first loudspeaker unit supply voice signal described, and at least one second loudspeaker unit supply described as the component frequency signal in the component of the frequency range of a part of frequency range of described voice signal.
2. speaker unit according to claim 1, also comprise reflector, described reflector is disposed in the upside of at least one the second loudspeaker unit described and is configured to reflect the sound launched from least one second loudspeaker unit described towards the front side of described housing.
3. according to speaker unit according to claim 1 or claim 2, wherein, described electronic circuit is configured to the signal supplied at least one second loudspeaker unit described in the component of the intermediate frequency range of the described frequency range of described voice signal.
4. the speaker unit according to any one in claims 1 to 3, wherein, described housing is divided into multiple layer, and described multiple layer at least comprises: upper strata case, and described upper strata case comprises the described opening of described upper surface and holds at least one second loudspeaker unit described; Middle level case, described middle level case comprises the described opening of described back surface and holds at least one first loudspeaker unit described; And lower floor's case, described lower floor case holds described electronic circuit.
5. the speaker unit according to any one in Claims 1-4,
Wherein, at least one first loudspeaker unit described comprises multiple loudspeaker unit, the voice signal of at least one sound channel of correspondence of multiple sound channel by be supplied in described multiple loudspeaker unit each, and
Wherein, described electronic circuit is configured to at least one second loudspeaker unit suppling signal described, and described signal obtains by extracting described component frequency signal in the described voice signal in each sound channel from described multiple sound channel and synthesizing the signal extracted.
6. the speaker unit according to any one in claim 1 to 5, also comprises:
First filter, described first filter is configured to the signal at least got in the middle of the audible frequency range of described voice signal the component of the intermediate frequency range comprising human speech; And
Second filter, described second filter is configured to the signal got in the middle of the described audible frequency range of described voice signal the component of each of low-frequency range and high-frequency range, wherein, with the described component at described intermediate frequency range in the described component of each of described low-frequency range and described high-frequency range, described signal is different
Wherein, the described signal exported from described first filter is exported at least one second loudspeaker unit described, and
Wherein, the described signal exported from described second filter is exported at least one first loudspeaker unit described.
7. speaker unit according to claim 6,
Wherein, at least one second loudspeaker unit described is the intermediate frequency range loud speaker of the reduction audio emission characteristic with described low-frequency range, and
Wherein, described first filter is low pass filter, described low pass filter is configured to get the signal less than or equal in the component of the frequency range of described intermediate frequency range, and comprises the component of described low-frequency range less than or equal to the described component of the described frequency range of described intermediate frequency range.
8. according to claim 6 or speaker unit according to claim 7,
Wherein, described voice signal is the stereophonic signal in L channel and R channel,
Wherein, be configured such that the signal in correspondence sound channel of described L channel and described R channel is input to each described in right first loudspeaker unit and left first loudspeaker unit as each of the right side first loudspeaker unit of at least one the first loudspeaker unit described and left first loudspeaker unit, and
Wherein, by synthesizing described R channel and described L channel and the signal obtained is input to second loudspeaker unit as at least one the second loudspeaker unit described.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013107885A JP6004188B2 (en) | 2013-05-22 | 2013-05-22 | Speaker device |
| JP2013-107885 | 2013-05-22 | ||
| JP2013157284A JP6090039B2 (en) | 2013-07-30 | 2013-07-30 | Speaker device |
| JP2013-157284 | 2013-07-30 | ||
| PCT/JP2014/062946 WO2014188952A1 (en) | 2013-05-22 | 2014-05-15 | Speaker device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105230043A true CN105230043A (en) | 2016-01-06 |
| CN105230043B CN105230043B (en) | 2018-06-15 |
Family
ID=51933511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480029228.1A Active CN105230043B (en) | 2013-05-22 | 2014-05-15 | Speaker unit |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3013071B1 (en) |
| CN (1) | CN105230043B (en) |
| WO (1) | WO2014188952A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111263251A (en) * | 2020-01-20 | 2020-06-09 | 惠州市东翔电子科技有限公司 | Sound light-emitting structure and control method and control system thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348552A (en) * | 1980-06-09 | 1982-09-07 | Siccone Ralph R | Direct/reflecting speaker system and triangular shaped enclosure |
| JPH0698392A (en) * | 1991-03-28 | 1994-04-08 | Nippon Columbia Co Ltd | Acoustic device |
| JP2004096273A (en) * | 2002-08-30 | 2004-03-25 | Foster Electric Co Ltd | Speaker system for video apparatus |
| CN2749206Y (en) * | 2004-11-03 | 2005-12-28 | 广州君悦电子有限公司 | Ultrathin wideband loudspeaker |
| US20070263888A1 (en) * | 2006-05-12 | 2007-11-15 | Melanson John L | Method and system for surround sound beam-forming using vertically displaced drivers |
| CN201518537U (en) * | 2009-09-25 | 2010-06-30 | 向凌云 | Widely-radiated sound field three-frequency-division stereo loudspeaker |
| CN102325290A (en) * | 2011-09-16 | 2012-01-18 | 康佳集团股份有限公司 | Sound box with omnibearing sound field |
| CN102845077A (en) * | 2010-08-12 | 2012-12-26 | Lg电子株式会社 | Speaker |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2941692A1 (en) * | 1979-10-15 | 1981-04-30 | Matteo Torino Martinez | Loudspeaker circuit with treble loudspeaker pointing at ceiling - has middle frequency and complete frequency loudspeakers radiating horizontally at different heights |
| JPS6121917Y2 (en) * | 1981-03-04 | 1986-07-01 | ||
| DE3201455C2 (en) * | 1982-01-19 | 1985-09-19 | Dieter 7447 Aichtal Wagner | Speaker box |
| JP3281181B2 (en) * | 1994-06-27 | 2002-05-13 | 松下電器産業株式会社 | Speaker system for sound field reproduction |
| US5533129A (en) * | 1994-08-24 | 1996-07-02 | Gefvert; Herbert I. | Multi-dimensional sound reproduction system |
| US6257365B1 (en) * | 1996-08-30 | 2001-07-10 | Mediaphile Av Technologies, Inc. | Cone reflector/coupler speaker system and method |
| JPH1155780A (en) | 1997-07-31 | 1999-02-26 | Sony Corp | Speaker device |
| JP2007037058A (en) | 2005-07-29 | 2007-02-08 | Sony Corp | Speaker system |
| JP2009213103A (en) * | 2008-03-03 | 2009-09-17 | Kimio Hachiro | Acoustic device with illumination function |
| EP2991367B1 (en) * | 2013-04-24 | 2020-02-19 | Yamaha Corporation | Speaker device and head piece |
-
2014
- 2014-05-15 EP EP14801780.9A patent/EP3013071B1/en active Active
- 2014-05-15 CN CN201480029228.1A patent/CN105230043B/en active Active
- 2014-05-15 WO PCT/JP2014/062946 patent/WO2014188952A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348552A (en) * | 1980-06-09 | 1982-09-07 | Siccone Ralph R | Direct/reflecting speaker system and triangular shaped enclosure |
| JPH0698392A (en) * | 1991-03-28 | 1994-04-08 | Nippon Columbia Co Ltd | Acoustic device |
| JP2004096273A (en) * | 2002-08-30 | 2004-03-25 | Foster Electric Co Ltd | Speaker system for video apparatus |
| CN2749206Y (en) * | 2004-11-03 | 2005-12-28 | 广州君悦电子有限公司 | Ultrathin wideband loudspeaker |
| US20070263888A1 (en) * | 2006-05-12 | 2007-11-15 | Melanson John L | Method and system for surround sound beam-forming using vertically displaced drivers |
| CN201518537U (en) * | 2009-09-25 | 2010-06-30 | 向凌云 | Widely-radiated sound field three-frequency-division stereo loudspeaker |
| CN102845077A (en) * | 2010-08-12 | 2012-12-26 | Lg电子株式会社 | Speaker |
| CN102325290A (en) * | 2011-09-16 | 2012-01-18 | 康佳集团股份有限公司 | Sound box with omnibearing sound field |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3013071B1 (en) | 2019-11-27 |
| EP3013071A4 (en) | 2017-04-26 |
| EP3013071A1 (en) | 2016-04-27 |
| WO2014188952A1 (en) | 2014-11-27 |
| CN105230043B (en) | 2018-06-15 |
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