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JP2010056813

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2010056813
An object of the present invention is to easily realize a predetermined sound emitting and
collecting environment by automatically orienting the front direction of each sound emitting and
collecting functional element to a predetermined direction even if the shape of the case changes.
SOLUTION: A sound emission and collection device 1 has an inner peripheral surface of a casing
in which four units 11 to 14 are connected by hinges 51 to 53, and four units 11 to 14 are
sequentially arranged on the circumference. The sound emitting and collecting function members
50A to 50L each including the sound emitting and collecting function elements 5A to 5L are
installed. The sound emitting and collecting functional members 50A to 50L each include a
spherical plain bearing 500 and a mechanism for applying a rocking force to the spherical plain
bearing 500 according to the attitude of each of the units 11 to 14, and according to the attitude
of the units 11 to 14 The front direction of the sound emitting and collecting function elements
5A to 5L changes. Thereby, if the installation state of the sound emission and collection device,
that is, the posture of each of the units 11 to 14 changes, the front direction of the sound
emission and collection functional elements 5A to 5L can be changed according to the contents
of the change. [Selected figure] Figure 6
Sound emission device
[0001]
The present invention relates to a sound emission and collection device capable of realizing a
plurality of housing shapes by connecting a plurality of units, each of which is an individual
housing, with a hinge and rotating each unit with respect to the hinge.
[0002]
09-05-2019
1
Conventionally, by arranging a plurality of speaker devices at predetermined positions, various
sound emission environments such as those used for music appreciation and audio conferences
are realized.
However, in order to realize a desired sound output environment using a plurality of speaker
devices, settings such as arranging the speaker devices in a predetermined direction are required.
For this reason, in patent document 1, the rocking | fluctuation-type speaker apparatus which
enables sound emission switching to several azimuth | direction with one speaker unit is
proposed. By using this configuration, the front direction of the speaker unit can be easily
switched if the speaker device is disposed at a predetermined position. JP 6-6887 A
[0003]
However, in the sound system of Patent Document 1, in order to realize the sound emission
environment required by the user, the swing operation of the speaker unit has to be performed
manually. For this reason, in an array-type speaker device in which a plurality of speaker units
are installed, it is necessary to manually perform a swing operation for each speaker unit, which
is a very troublesome task for the user. This is the same for the sound emitting and collecting
apparatus using the sound emitting and collecting function element that combines the sound
emitting function and the sound collecting function. Furthermore, adjusting the front direction of
the plurality of sound emitting and collecting functional elements to realize a desired sound
emitting and collecting environment is a more troublesome task for the user. In particular, in the
sound emission and collection device in which the housing shape changes, the default front
direction of each sound emission and collection functional element changes for each changed
shape, which causes more troublesome work.
[0004]
Therefore, an object of the present invention is to easily realize a predetermined sound emitting
environment by automatically orienting the front direction of each sound emitting function
element in a predetermined direction, even in a sound emitting and collecting device whose
housing shape changes. It is to do.
[0005]
09-05-2019
2
The sound emission and collection device according to the present invention has a substantially
flat plate shape, and a case in which a through hole is formed between the opposing top and
bottom surfaces of the flat plate, and an inner circumferential surface of the case by the through
hole. A plurality of sound emitting and sound combining elements in which the through hole
direction arranged in an array is the sound emitting and collecting direction, and a sound
emitting and collecting control means for performing the sound emitting and collecting control
on the plurality of sound emitting and collecting dual purpose elements Prepare.
In this sound emission and collection device, the housing is divided into a plurality of individual
housings such that the shapes of the inner peripheral surfaces are substantially the same, with
the center of the through hole viewed from the top surface and the bottom surface as a reference
point The adjacent individual casings abut each other on the top surface or the bottom surface of
all the connection portions except one connection portion in the connection portions along the
circumferential direction of the plurality of individual casings. Thus, hinges which are rotatably
connected are provided. Further, the sound emitting and collecting apparatus includes holding
means, an element attitude changing means, and a sound emitting and collecting control means.
The holding means holds the sound emission and collection function element swingably with
respect to the individual case. The element posture changing means changes the individual
element posture, which is the posture of the sound emitting and collecting function element with
respect to each individual housing, based on the entire posture of the housing determined by the
combination of the postures of the plurality of individual housings. The sound emission and
collection control means performs sound emission and collection control according to the overall
posture of the housing.
[0006]
In this configuration, the direction in which the inner peripheral surface of each individual casing
faces also changes according to the postures of the plurality of individual casings. The sound
emission and collection function element changes in the front direction according to the change
in the direction in which the inner peripheral surface faces, but is held rockably by the holding
means. Therefore, by applying a predetermined rocking force to each sound emitting and
collecting functional element from the element posture changing means, the front of each sound
emitting and sound functional element can be directed in a predetermined direction. In parallel
with this operation, the sound emission and collection control means performs sound emission
and collection control according to the overall posture of the housing. By these operations and
processing, the sound emission and collection device automatically realizes a predetermined
sound emission and collection environment according to the overall posture of the housing.
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3
[0007]
Further, the holding means and the element attitude changing means of the sound emission and
collection device of the present invention are configured as follows. The holding means has a
spherical slide bearing consisting of an outer diameter side member and an inner diameter side
member. The outer diameter side member is fixed to the individual housing, and the inner
diameter side member is fixed to the sound emitting and collecting function element. The
element attitude changing means is connected to the inner side member of the spherical slide
bearing. The element posture changing means has a rocking force generating member that
generates a rocking force on the inner diameter side member according to the gravity.
[0008]
In this configuration, the rocking force generating member applies an external force according to
the direction of gravity to the inner diameter side member of the spherical slide bearing. In
response to the external force, the inner diameter side member pivots relative to the outer
diameter side member installed in the individual housing. Since the sound emitting and collecting
functional element is fixed to the inner diameter side member, as a result, the sound emitting and
collecting functional element swings with respect to the individual case.
[0009]
Further, the sound emission control means of the sound emission and collection device of the
present invention assigns the sound emission / emission functional element for sound collection
and the sound emission / emission functional element for sound emission based on the entire
posture of the housing.
[0010]
In this configuration, the sound emission element and the sound collection element are based on
the entire posture of the housing, that is, the arrangement pattern of the plurality of sound
emission function elements installed in each of the plurality of individual housings. Are assigned
as appropriate.
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4
Thereby, in addition to the front direction of the above-mentioned sound emission and collection
function element being determined appropriately, a predetermined sound emission and collection
pattern is formed. As a result, an appropriate sound emitting and collecting environment
according to the posture of the sound emitting and collecting device is automatically realized.
[0011]
According to the present invention, with respect to the sound emission and collection device of
the specification capable of changing the postures of the plurality of individual housings
constituting the device, each sound emission and collection functional element installed in each
individual housing is properly oriented. It can be automatically directed to, and thereby, a
predetermined sound emitting and collecting environment can be easily realized.
[0012]
A sound emission and collection device according to an embodiment of the present invention will
be described with reference to the drawings.
FIGS. 1 to 3 are views showing the appearance of the sound emission and collection device 1, and
are views of different usage modes. FIG. 1 is a view showing a flat placement mode, in which (A)
is a plan view, (B) is a right side view, and (C) is a bottom view, with the -Y direction in the figure
as a front direction. FIG. 2 is a view showing a half-folded form, in which the -Y direction in the
figure is a front direction, (A) is a plan view, (B) is a right side view (C) is a rear view, and (D) is a
front view It is. FIG. 3 is a view showing a four-fold form, in which the -Y direction is a front
direction, (A) is a plan view, (B) is a right side view, (C) is a left side view, (D) These are external
appearance perspective views in the state which made the front the installation surface.
[0013]
The sound emission and collection device 1 has a circular top surface and a bottom surface in the
top view (plan view) in FIG. 1, and a hole penetrating the top surface to the bottom surface is
provided substantially at the center of the circle. It has a flat-shaped annular body having a
height, in other words, a thick cylindrical housing. In the following description, although the case
where the top surface and the bottom surface are circular is shown as an example, the
orthogonal first symmetry reference line Ls1 and the first symmetry reference line Ls1 formed
09-05-2019
5
parallel to these surfaces with the centers of the top and bottom surfaces as intersections. The
inner circumferential surfaces of the individual casings divided by the two axes of the two
symmetrical reference lines Ls2 may be shaped so as to be line symmetrical with respect to the
two axes. For example, the inner circumferential shape may be represented by a side such as a
square or a regular hexagon, or may be represented by the outer periphery of an ellipse.
Furthermore, the outer peripheral surface of the housing may be any one having the abovedescribed symmetry, such as a square, a regular hexagon, or an ellipse. Furthermore, even if the
number of divisions is not four, it may be made up of a number of individual casings whose
symmetry is given by two or more symmetrical reference lines.
[0014]
The casing of the flat annular body is constituted by units 11 to 14 of individual casings having
the same opening angle of about 90 degrees in the top view in FIG. 1. A hinge 51 having a first
symmetry reference line as a rotation axis is installed on the top surface side where the unit 11
and the unit 12 are connected. A state in which the top surfaces of the unit 11 and the unit 12
face each other and abut against each other (for example, in the state of FIG. 1) with the hinges
51 as a rotation center (the state of FIG. 1). For example, they are connected so as to rotate to the
state of FIG. 2 and FIG.
[0015]
Similarly, on the top surface side where the unit 13 and the unit 14 are connected, a hinge 53
having a first symmetry reference line as a pivot axis is installed. A state in which the top
surfaces of the unit 13 and the unit 14 face each other and abut against each other (for example,
in the state of FIG. 1) with the top surfaces of the unit 13 and the unit 14 being side by side on
one plane For example, they are connected so as to rotate to the state of FIG. 2 and FIG.
[0016]
In addition, on the bottom surface side where the unit 12 and the unit 13 are connected, a hinge
52 having a second symmetry reference line as a rotation axis is installed. When the bottom
surfaces of the unit 12 and the unit 13 are arranged side by side on one plane with the hinge 52
as the rotation center (for example, the states of FIG. 1 and FIG. 2) It is connected so as to rotate
(for example, in the state of FIG. 3). And in the flat placement aspect of the above-mentioned FIG.
09-05-2019
6
1, between the unit 11 and the unit 14, although the mutually opposing surfaces contact | abut,
it is not connected. Thus, the rotation of the unit 11 with respect to the unit 12 and the rotation
of the unit 14 with respect to the unit 13 can be performed separately.
[0017]
Three sound emitting and collecting functional members are disposed along the circumferential
direction on the inner peripheral surface side in each of the units 11 to 14. That is, the sound
emitting and collecting functional members 50A, 50B and 50C are installed on the inner
peripheral surface of the unit 11, and the sound emitting and collecting functional members 50D,
50E and 50F are installed on the inner peripheral surface of the unit 12, The sound emitting and
collecting functional members 50G, 50H and 50I are installed on the inner peripheral surface of
the unit 13, and the sound emitting and collecting functional members 50J, 50K and 50L are
installed on the inner peripheral surface of the unit 14. These sound emitting and collecting
functional members 50A to 50L are arranged in the order of the sound emitting and collecting
functional members 50A, 50B, ..., 50L along the direction in which the unit 11, the unit 12, the
unit 13, and the unit 14 circulate in this order. Installed in
[0018]
A protrusion 121 is provided in the radial direction on the right side of the unit 12 on the front
side. The projecting portion 121 has a triangular prism shape in which the state in plan view in
FIG. 1 is an isosceles triangle having an arc-shaped oblique side. The arc-shaped oblique side is
shaped along the outer peripheral shape of the unit 12. The height (the length in the Z direction)
of the protrusion 121 is approximately twice the height of the unit 12 and the unit 11. As a
result, in the state in which the above-described hinge 51 is bent and the top surface of the unit
11 and the top surface of the unit 12 are in contact with each other, the height of the portion
composed of the units 11 and 12 is the same (see FIG. 2).
[0019]
A protrusion 131 is provided in the radial direction on the left side of the unit 13 in the front
side. The projecting portion 131 has a triangular prism shape in which the state in plan view in
FIG. 1 is an isosceles triangle having an arc-shaped oblique side. The arc-shaped oblique side is
shaped along the outer peripheral shape of the unit 13. The height (the length in the Z direction)
09-05-2019
7
of the protrusion 131 is about twice the height of the unit 13 and the unit 14. As a result, when
the top surface of the unit 13 and the top surface of the unit 14 are in contact with each other by
bending the above-mentioned hinge 53, the height of the portion consisting of the units 13 and
14 is the same (see FIG. 2). The units 11 to 14 and the protrusions 121 and 131 form a casing of
the sound emission and collection device 1.
[0020]
Moreover, since the protrusion part 121 and the protrusion part 131 are the above-mentioned
shapes, the front side end surface of the sound emission and collection apparatus 1 becomes flat
planar shape. Thereby, the sound emission and collection device 1 can be installed with the front
end surface as the installation surface (see FIG. 3D).
[0021]
The display unit 21 and the operation unit 22 are provided on the top surface of the protrusion
121, and the display unit 21 and the operation unit 23 are provided on the top surface of the
protrusion 131. The display unit 21 includes a plurality of light emitting elements (for example,
LEDs), and displays the operation state of the sound emission and collection device 1 by turning
on and off the light emitting elements. For example, the display unit 21 of the protrusion 121
indicates which of the sound emitting device, the sound collecting device, and the sound emitting
device operates, and the display unit 21 of the protrusion 131 displays a speaker volume. The
operation unit 22 receives the switching operation of the sound emission and collection function
by the pressing of the operator. The operation unit 23 receives the adjustment of the volume by
the pressing of the operator.
[0022]
Next, the feature of the shape in each aspect shown in FIGS. 1 to 3 will be described. In the flat
placement mode shown in FIG. 1, the bottom surface (the surface in the −Z direction) of the
sound emission and collection device 1 is installed as an installation surface, and the sound
emission and collection functional elements 5A to 5L of the sound emission and collection
functional members 50A to 50L The all around direction of the horizontal plane becomes the
sound emission range. This makes it possible to collect or emit sound in all directions.
09-05-2019
8
[0023]
In the double-folding mode shown in FIG. 2, the unit 11 is pivoted about the hinge 51 from the
above-described flat placement mode and mounted on the top surface side of the unit 12, and the
unit 14 is pivoted about the hinge 53. This is realized by placing the unit on the top surface side
of the unit 13. In this half-folded form, the sound emission and collection functional members
50A to 50L are arranged on the semicircular inner peripheral surface formed by the units 11 to
14. The sound emitting and collecting functional members 50A to 50C and 50J to 50L are
arranged on the first horizontal surface, and the sound emitting and collecting functional
members 50D to 50I are arranged on the second horizontal surface. Here, the first horizontal
surface is located closer to the top surface side as the sound emission and collection device 1
than the second horizontal surface. For this reason, the sound emission and collection function
elements 5A to 5L of the sound collection and collection function members 50A to 50L are
arranged in two stages in the height direction in a half-round shape. As a result, in the halffolding mode, only the side to which the inner circumferential surface of the semicircular shape
is directed in the horizontal direction is the sound emission and collection range, but since the
sound emission and collection functional elements are arranged in two stages in the height
direction The sound emission and collection performance in the height direction is improved as
compared to the placement mode.
[0024]
Further, as described above, since the heights of the protrusions 121 and 131 correspond to the
stacking heights of the units 11 and 12 and the stacking heights of the units 13 and 14, in the
two-folded mode, Since the top surface is flat and the display unit 21 and the operation units 22
and 23 are disposed on the top surface as the sound emission and collection device 1, the
operability is excellent.
[0025]
In the four-folded mode shown in FIG. 3, the assembly of units 11, 12 and the units 13, 14 are
arranged such that the bottom surface of the unit 12 and the bottom surface of the unit 13 abut
on the hinge 52 from the above-described two-folded configuration. It is realized by rotating the
assembly.
At this time, since the unit 11 and the unit 14 are not connected, they can be easily deformed
09-05-2019
9
into a four-fold form. In this four-folded mode, the front as the sound emission and collection
device 1 becomes flat as described above, so the sound emission and collection device 1 is used
with the front as the installation surface. In this aspect, the obliquely upper surface 125 as the
sound emission and collection device 1 in the installed state is formed by the inner
circumferential surface group of the units 11 to 14. And since each unit 11-14 is a shape where
it arranges in the direction perpendicular | vertical to the arrangement direction of each sound
emission and collection function member, the said 3rd four rows of sound emission and
collection function elements 5A-5L are on the said diagonal upper surface 125 Arranged in a
pattern. As a result, in the four-fold mode, only a region in a predetermined range obliquely
above the inner peripheral surface of the sound emission and collection device 1 is the sound
emission and collection range. For this reason, although the sound emission and collection range
becomes narrow compared with the above-mentioned two modes, the sound emission and
collection performance in the range concerned improves. Furthermore, with the above-described
structure, the projecting portions 121 and 131 are exposed in the side direction of the sound
emission and collection device 1 in the installed state, so that the operator can easily check the
display unit 21 and operate the operation units 22 and 23 easily. It becomes.
[0026]
The sound emission and collection device 1 having such a structure includes the functional
blocks shown in FIG. 4 and executes various processes on the sound emission signal and the
sound collection signal. FIG. 4 is a diagram showing functional blocks of the sound emission and
collection device 1 of the present embodiment. As shown in FIG. 4, the sound emission and
collection device 1 is added to the sound emission and collection functional members 50A to
50L, the display unit 21 and the operation units 22 and 23 each having the above-described
sound emission and collection functional elements 5A to 5L and switching. Sections 61A to 61L,
sound collection amplifiers 62A to 62L, A / D converters 63A to 63L, microphone signal
processing unit 64, input / output I / F 65, speaker signal processing unit 66, D / A converters
67A to 67L, sound emission amplifier 68A To 68 L, and a control unit 69.
[0027]
As described above, the sound emitting and collecting functional elements 5A to 5L are elements
combining a microphone and a speaker, and are realized by a general dynamic speaker including
a diaphragm and a voice coil. The switching units 61A to 61L perform switching between the
speaker and the microphone. The sound emitting and collecting functional elements 5A to 5L
function as a microphone when the switching units 61A to 61L supply the audio signals input
09-05-2019
10
from the sound emitting and collecting functional elements 5A to 5L to the sound collecting
amplifiers 62A to 62L in the subsequent stage. On the other hand, the sound emitting and
collecting functional elements 5A to 5L function as speakers when the switching units 61A to
61L supply the audio signals input from the sound emitting amplifiers 68A to 68L to the sound
emitting and collecting functional elements 5A to 5L.
[0028]
The control unit 69 controls the switching units 61A to 61L, the microphone signal processing
unit 64, the input / output I / F 65, the speaker signal processing unit 66, and the display unit
21. In addition, according to the user's operation mode (operation signal) input from the
operation units 22 and 23, a speaker / microphone switching instruction, volume control, and
the like are performed.
[0029]
Furthermore, the control unit 69 determines the use mode based on the attitude detection signal
from the sensor 70, and selects the switching pattern of the sound emission and collection
function element according to the use mode. The control unit 69 controls switching of the
speakers and the microphones of the switching units 61A to 61L based on the switching pattern.
In addition, the control unit 69 outputs the determined use mode and the sound emission and
collection switching pattern for the sound collection and collection function element to the
microphone signal processing unit 64 and the speaker signal processing unit 66.
[0030]
The sensor 70 detects rotation angles of the hinges 51, 52, 53, and outputs, to the control unit
69, an attitude detection signal corresponding to the detected rotation angle of each hinge.
[0031]
(Sound Collection Operation) The collected sound signals output from the sound collection
function elements 5A to 5L functioning as a sound collection element are amplified by the sound
collection amplifiers 62A to 62L through the switching units 61A to 61L.
09-05-2019
11
The amplified collected voice signal is converted into a digital voice signal by A / D converters
63A to 63L, and is input to the microphone signal processing unit 64. The microphone signal
processing unit 64 performs delay processing on each collected sound signal in accordance with
the usage mode and the emitted / collected sound switching pattern. The microphone signal
processing unit 64 combines the collected sound signals after the delay processing to form a
collected beam signal. As a result, it is possible to form a sound collection beam signal according
to the usage mode and the sound collection and collection switching pattern. A plurality of
collected sound beam signals can be simultaneously set. In this case, collected sound signals
input from the A / D converters 63A to 63L are distributed, and delay processing according to
each collected sound beam and The composition process may be performed.
[0032]
The generated sound collecting beam signal is output to the input / output I / F 65. The input /
output I / F 65 converts the sound collection beam signal into an audio communication signal
having a data format conforming to the communication specification with a PC (personal
computer) or the like to be connected and transmits it.
[0033]
(Sound Release Operation) When receiving an audio communication signal from another device,
the input / output I / F 65 demodulates and generates a sound output sound signal. The input /
output I / F 65 outputs the sound emission sound signal to the speaker signal processing unit 66.
[0034]
The speaker signal processing unit 66 distributes the sound emitting sound signal for each sound
emitting and collecting functional element, and performs delay processing for each sound
emitting sound signal after distribution according to the usage mode and the sound emitting and
collecting switching pattern. By doing this, an audio signal for individual sound emission is
generated. Thereby, predetermined sound emission directivity can be given to the sound
emission sound from the sound emission and collection function element functioning as the
sound emission element.
09-05-2019
12
[0035]
The individual sound emission sound signals are analog-converted by the D / A converters 67A
to 67L, respectively, and amplified by the sound emission amplifiers 68A to 68L. The amplified
individual sound emitting sound signals are input to the switching units 61A to 61L, and are
output only to the sound emitting and collecting function elements 5A to 5L functioning as
sound emitting elements.
[0036]
The sound emitting and collecting functional elements 5A to 5L to which the individual sound
emitting sound signals are given emit sound in the front direction of the self element. Thus,
predetermined sound emission directivity is realized by performing sound emission by the
individual sound emission sound signals with the sound emission / reception functional elements
5A to 5L functioning as sound emission elements.
[0037]
In the sound emission and collection device of the present embodiment provided with such a
configuration and processing, the front direction of each of the sound collection and collection
functional elements 5A to 5L can be automatically adjusted according to the usage mode. FIG. 5
is a view showing a specific configuration example of the sound emission and collection function
members 50A to 50L. In addition, since the sound emission and collection function members
50A to 50L have the same configuration, symbols A to L are omitted in FIG. 5 and the following
description will be made in a state where the symbols are omitted.
[0038]
The sound emission and collection function member 50 includes the sound emission and
collection function element 5, an element holding plate 510, a spherical plain bearing 500, a
dome 503, a connecting arm 504, a sphere 505, and a highly viscous fluid 506.
[0039]
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13
The spherical plain bearing 500 has a structure in which the inner ring member 501 and the
outer ring member 502 are in spherical contact.
With this structure, the inner ring member 501 can rock and tilt with respect to the outer ring
member 502.
[0040]
The outer ring member 502 is fixedly installed on the inner peripheral side wall surface of the
casing of the unit (11 to 14).
[0041]
The element holding plate 510 is fixed to one opening surface of the inner ring member 501, and
the sound emitting and collecting function element 5 is fixedly installed on the element holding
plate 510.
Under the present circumstances, the sound emission and collection function element 5 is
installed so that the front direction may face outward from the inner ring member 501. Further,
in the vicinity of the other opening surface of the inner ring member 501, a connecting arm 504
is connected. The connecting arm 504 is composed of three rigid bars installed at positions
spaced 120 degrees from the opening side. The end on the opposite side of the inner ring
member 501 of the connecting arm 504 is connected to a single rigid-body-side rigid rod, and
this connecting part has a three-dimensionally movable shape. At the end opposite to the
connecting portion of the spherical rigid rod, a sphere 505 having a weight enough to float on
the highly viscous fluid 506 is connected.
[0042]
The dome 503 is a hollow elliptical sphere having a predetermined volume including a spherical
slide bearing 500, a connection arm 504, and a sphere 505, and one end in the long axis
direction is open, and the spherical slide bearing 500 is installed in the opening surface. It is
done. In the dome 503, a highly viscous fluid 506 having a volume sufficient to allow swinging of
09-05-2019
14
the sound emission and collection function element 5 is enclosed. That is, based on the swing
specification of the spherical plain bearing 500, the length of the connection arm 504, the
volume of the ball 505, and the like, the volume is set such that the ball 505 always floats on the
high viscosity fluid 506. The rocking specification is a specification for setting how much the
sound emitting and collecting function element 5 is to be tilted (rocked) according to the posture
of the unit. The high viscosity fluid 506 is preferably sealed in a low hardness bag.
[0043]
In such a structure, as shown in FIGS. 5C to 5F, when the postures of the units 11 to 14 change,
the highly viscous fluid 506 moves to the lowermost end of the dome 503 in that posture. Here,
since the dome 503 is a hollow elliptical sphere, the depth of the highly viscous fluid 506
changes according to the posture of the unit. In response to this, the position of the sphere 505
is changed, and the change is transmitted to the inner ring member 501 through the connection
arm 504, thereby applying a swing force to the inner ring member 501. The inner ring member
501 swings relative to the outer ring member 502 by this swing force. As a result, the sound
emitting and collecting function element 5 swings with respect to the units 11 to 14, and the
front direction of the sound emitting and collecting function element 5 changes.
[0044]
By this structure, the front direction of the sound emitting and collecting function element 5
changes in each of the above-mentioned modes. FIG. 6 is a diagram showing the state in the flat
mode. FIG. 7 is a diagram showing the state in the double-folded form. FIG. 8 is a view showing
the state in the four-fold mode.
[0045]
(Flat Mode) As shown in FIG. 6, in the flat mode, all the bottom surfaces of the units 11 to 14 are
on the installation surface side, and the installation surfaces of the sound emission and collection
functional elements 5A to 5L are vertical. All the functional members 50A to 50L are in the
posture as shown in FIG. As a result, all the sound emitting and collecting functional elements 5A
to 5L are directed obliquely upward (top surface direction) from the front and stopped.
09-05-2019
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[0046]
In the flat placement mode, as shown in FIGS. 6B and 6C, the sound emission and collection
device 1 is placed flat on the table 900, and the users 901 to 904 sit around the table 900.
Therefore, the faces of the users 901 to 904 are obliquely upward with respect to the sound
emission and collection device 1. Here, in the sound emission and collection device 1 in the flat
mode, the front direction of all the sound emission and collection functional elements 5A to 5L is
obliquely upward, so the users 901 to 904 are in the front direction of the sound emission and
collection functional elements 5A to 5L. The face of the will be present. Therefore, the emitted
sound from the sound emitting and collecting functional elements 5A to 5L is emitted centering
on the face direction of the users 901 to 904 (see the outlined arrows in the figure), and the
sound from the users 901 to 904 is released. Sound is collected in front of the sound collection
function elements 5A to 5L (see black arrows in the figure). As a result, sound emission and
collection can be performed efficiently in a flat manner.
[0047]
As shown in FIG. 7, in the two-fold mode, the bottom surfaces of the units 12 and 13 are on the
installation surface side, and the top surfaces of the units 11 and 14 are on the installation
surface side. Also in this case, since the installation surfaces (inner peripheral surfaces) of the
sound emission function elements 5A to 5L are along the vertical direction only by reversing the
positions of the top and bottom surfaces in the units 11 and 14, the sound emission function
members 50A The positions from 50 L to 50 L are all as shown in FIG. As a result, all the sound
emitting and collecting functional elements 5A to 5L are directed obliquely upward (top surface
direction) from the front and stopped.
[0048]
In the two-folded mode, as shown in FIGS. 7B and 7C, the sound emission and collection device 1
is folded on the table 900 in two with the units 12 and 13 side as the installation surface side.
Users 901 and 902 are seated on one side. Therefore, the faces of the users 901 and 902 are
obliquely upward in the radial direction with respect to the sound emission and collection device
1. Here, in the sound emission and collection device 1 in the two-folded form, the front direction
of all the sound emission and collection functional elements 5A to 5L is obliquely upward, so the
users 901 and 902 are in the front direction of the sound emission and collection functional
elements 5A to 5L. The face of the will be present. Therefore, the voices emitted from the voice
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emitting and receiving functional elements 5A to 5L are emitted centering on the face direction
of the users 901 and 902 (see outlined arrows in the figure), and the voices from the users 901
and 902 are voiced and collected. Sound is collected in front of the functional elements 5A to 5L
(see black arrows in the figure). At this time, since the two sound emitting and collecting
functional elements are arranged in the height direction, the sound emitting and collecting
performance in the height direction can be improved. Thereby, although the sound emission and
collection range becomes narrower in the two-folded mode than in the flat state, the sound
emission and collection performance can be further improved.
[0049]
(Quarterly Folding Mode) As shown in FIG. 8, in the quadruple folding mode, the front walls of
the units 11 to 14 are on the installation surface side. In this case, since the inner peripheral
surface of each unit faces obliquely upward, the angle with the vertical direction differs for each
of the sound emitting and collecting functional elements 5A to 5L arranged in each of the units
11 to 14, respectively. For example, in the case of the unit 11, the default front face direction of
the sound emission and collection functional elements 5A to 5C is directed in the vertical
direction in order. Therefore, the sound emitting and collecting functional element 5A is in the
posture as shown in FIG. 5 (F), the sound emitting and collecting functional element 5B is in the
posture as shown in FIG. 5 (E), and the sound emitting and collecting functional element 5C is as
shown in FIG. The attitude is as shown in (D). The sound emitting and collecting functional
elements 5D to 5L of the units 12 to 14 also have the same posture as the corresponding sound
emitting and collecting functional elements 5A to 5C. That is, the sound emitting and collecting
functional elements 5A to 5L are swung by different swing amounts for each position in the
vertical direction and stop.
[0050]
In the four-fold mode, as shown in FIGS. 8B and 8C, the sound emission and collection device 1 is
placed on the table 900 with the front wall of the units 11 to 14 as the installation surface side in
four-fold, The user 901 is seated on one side of 900. Therefore, the face of the user 901 is
obliquely upward in the radial direction with respect to the sound emission and collection device
1. Here, in the sound emission and collection device 1 in the four-fold form, the inner peripheral
surface is originally obliquely upper, so all the sound collection and collection functional
elements 5A to 5L are substantially directed in the face direction of the user 901. Furthermore,
the frontal direction of the sound emission and collection functional elements 5A to 5L is
changed as described above, thereby adjusting the frontal direction of each of the sound
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emission and collection functional elements 5A to 5L in more detail with respect to the face of
the user 901 Can. That is, by installing the sound emission and collection device 1 so that the
front direction of the sound emission and collection functional elements 5E and 5H, which is the
center of the array, becomes the mouth direction of the user 901, the sound emission and
collection functional elements 5C and 5D in the upper row , 5I, 5J face the upper (forehead)
direction of the face of the user 901. The sound emitting and collecting functional elements 5B
and 5K at both ends of the middle step face both sides of the user 901, that is, the right ear and
the left ear. Furthermore, the sound emitting and collecting functional elements 5A, 5F, 5G, 5L in
the lower stage face the lower (neck) direction of the face of the user 901. Therefore, by causing
the sound emitting and collecting functional elements 5E and 5H to function as a sound
collecting element and causing the other sound emitting and collecting functional elements 5A to
5D, 5F, 5G, 5I to 5L to function as a sound emitting element, from the mouth Sound can be
picked up (see black arrows in the figure) and emitted around the circumferential direction of the
face including the ears (see white arrows in the figure). As a result, it is possible to pick up the
voice of the user 901 from the front and emit the emitted sound toward the peripheral portion
including the ear. At this time, since the sound collecting direction and the sound emitting
direction do not coincide with each other, their acoustic coupling is low, and it is difficult for the
sound emitting sound to be collected. As a result, in the four-fold mode, although the sound
release and collection range becomes narrower, a higher sound release and sound collection
becomes possible.
[0051]
As described above, by using the structure that enables the sound emitting and collecting
function element to swing as in the present embodiment, even if it is the sound emitting and
collecting device whose housing shape and installation method, that is, the usage mode changes,
It is possible to realize an appropriate sound emission according to each usage mode.
[0052]
In the above description, an example is shown in which the oscillating force is applied to the
spherical plain bearing on which the sound emitting function element is installed by the high
viscosity fluid, the sphere floating on it, and the connecting arm. A method of providing a swing
force regardless of gravity, such as applying a swing force to a spherical plain bearing by
extending the axis of the air cylinder, may be used.
FIG. 9 is a view showing a sound emission and collection device having a structure in which the
direction of such a sound collection and collection functional element can be arbitrarily changed,
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where (A) is a flat layout, (B) is a two fold configuration, (C ) Shows the case of the four-fold
mode. As in the sound emitting and collecting apparatus shown in FIG. 9, the direction of the
sound emitting and collecting functional element can be changed regardless of the gravity by
providing a mechanism for adding a predetermined power, so that the details according to the
usage mode can be obtained. Sound emission settings can be made.
[0053]
It is a figure showing the external appearance in the flatly placed aspect of the sound emission
and collection apparatus 1 of this invention. It is a figure showing the appearance in the form of
a fold of the sound emission and collection device 1 of the present invention. It is a figure
showing the appearance in the four-fold mode of sound emission and collection device 1 of the
present invention. It is a figure which shows the functional block of the sound emission and
collection apparatus 1 of this invention. It is a figure which shows the specific structural example
of sound emission function members 50A-50L. It is a figure which shows the state in a flat
placement mode. It is a figure which shows the state in a half fold mode. It is a figure which
shows the state in a four-fold mode. It is a figure which shows the sound emission and collection
apparatus of the structure where the direction of a sound emission and collection function
element can be changed arbitrarily.
Explanation of sign
[0054]
1-sound emission and collection device, 11-14-unit, 121, 131-projection, 21-display, 22, 23operation unit, 5, 5A-5L-sound emission and collection functional element, 50, 50A-50L- Sound
emission and collection function member, 51, 52, 53-hinge, 61A to 61L-switching unit, 62A to
62L-sound collecting amplifier, 63A to 63L-A / D converter, 64- microphone signal processing
unit, 65-input / output I / F, 66-speaker signal processing unit, 67A to 67L-D / A converter, 68A
to 68L-sound emission amplifier, 69-control unit, 70-sensor, 500-spherical slide bearing, 501inner ring member, 502-outer ring Member, 503-dome, 504-connecting arm, 505-sphere, 506high viscosity fluid, 900-table, 901-904-user
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