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JPH0819078

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DESCRIPTION JPH0819078
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sensitizes
vibration obtained by an electromechanical vibration transducer responsive to an electrical signal
of acoustic frequency to a human body through skin, bone, etc. without hearing The present
invention relates to a method and apparatus for applying an acoustic vibratory sensation to
"provide a sensation" and, in particular, to enhance a sensation imparted by transmitting
vibration to a sensitive fingertip in a human body. It is configured as follows.
[0002]
2. Description of the Related Art As a method and apparatus for imparting such an acoustic
vibratory body, mainly, while enjoying music with a sense of hearing, it is possible to make the
pleasure of the music stronger by giving a sense of rhythm with the music with a sense of
sensation. In addition to the purpose, the purpose is to allow the deaf person to gain insensible
understanding of intonation in speech utterances.
[0003]
Further, as the electromechanical vibration converter 100, a speaker voice coil type
configuration (hereinafter referred to as the first prior art) as shown in FIG. 8 is as shown in FIG.
The construction of a solenoid actuator type construction (hereinafter referred to as the second
prior art) is disclosed by Japanese Utility Model Application No. 57-171371.
[0004]
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1
In FIG. 8, a cylindrical movable coil 51 is disposed so as to be able to retract into a gap 54 having
a long groove-like cross section provided in a field member 53 which is magnetically magnetized
by a permanent magnet 52. Yes.
The vibrating body 55 fixed to the movable coil 51 is held on the field body 53 side via a holding
plate 56 of an elastic material.
Then, by applying an electric signal of an acoustic frequency to the movable coil 51, the movable
coil 51 is mechanically vibrated corresponding to the frequency and the amplitude of the electric
signal, and between the field body 53 and the vibrating body 55. Is configured to obtain the
vibration source from the relative vibration of.
[0005]
The arrangement shown in FIG. 8 is called a speaker voice coil type because the arrangement of
the movable coil 51 and the field member 53 corresponds to the voice coil and the field yoke in
the speaker.
[0006]
In FIG. 9, the exciting coil 61 is embedded in the field member 62, and the vibrating member 63
of the magnetic material is disposed opposite to the open end side of the field member 62 and
the elastic member is held. It is held on the field body 62 side via the plate 64.
Then, by applying an electrical signal of an acoustic frequency to the exciting coil 61, the
vibrating body 63 is mechanically vibrated corresponding to the frequency and the amplitude of
the electrical signal, and between the field body 62 and the vibrating body 63. The vibration
source is obtained from the relative vibration of.
[0007]
As shown in FIG. 9, the movable side and the fixed side of the configuration shown in FIG. 9 are
reversed, and the vibrating body 63 is a permanent magnet and disposed on the fixed side, and
the exciting coil 61 and the field core 62 are elastic. Japanese Patent Application Laid-Open No.
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2
5-14996 discloses a configuration (hereinafter, referred to as a third prior art) which is held by a
holding plate of a body and disposed on the movable side.
[0008]
In the configuration shown in FIG. 9, the configuration in which the vibrating body 63 is
attracted and released by the magnetic force generated by the exciting coil 61 and the field body
62 corresponds to the solenoid field and actuator in the solenoid actuator. It is called a solenoid
actuator type.
[0009]
On the other hand, as a configuration for imparting bodily sensation, the contact portion
provided on the vibrating body 63 is applied to a bodily bone portion such as the otobone to
impart bodily sensation from the bodily bone portion (hereinafter referred to as the fourth
embodiment). In addition, as shown in FIG. 10, hemispherical shells are provided on the outer
sides of the field side 71 and the vibrating body side 72 fixed to the movable coil, respectively, as
shown in FIG. Japanese Laid-Open Patent Publication No. Hei 5-300943 provides a body 73, 74
attached and wraps the outer surfaces of both shells with both palms 75, 76 to impart a
sensation from the palm (hereinafter referred to as the fifth prior art). It is disclosed.
[0010]
Further, a configuration for imparting bodily sensation from the buttocks and the soles of the
human body by the electromechanical vibration converter 100 according to the first prior art,
the third prior art and the fourth prior art etc. (hereinafter referred to as the sixth prior art)
Japanese Patent Application Laid-Open No. 52-103910 and Japanese Patent Application LaidOpen No. 5-14996.
[0011]
SUMMARY OF THE INVENTION In the method for giving sensation according to the fourth prior
art described above, the sense of sound due to hearing and the sensation of sensation due to
vibration are received at the same part of the human body, so the sound and sensation are
confused. There is a disadvantage that it is difficult to obtain the desired pleasure.
[0012]
Further, in order to impart stronger sensation by the above-described fifth to sixth prior arts, it is
necessary to increase the power of the electrical signal supplied to the electromechanical
vibration converter. Then, the size of the device increases and the vibration of the
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electromechanical vibration transducer becomes strong, so the vibration generated directly from
the electromechanical vibration transducer itself or a chair or floor on which the
electromechanical vibration transducer is installed. The sound becomes strong, and as a result,
there is a disadvantage that this vibration sound is a noise and conversely gives an auditory
discomfort.
[0013]
For this reason, there is a problem that it is desired to provide a method and apparatus for giving
the sensation by such an inconvenient method.
[0014]
SUMMARY OF THE INVENTION According to the present invention, in the method for giving
sensation according to the above, the vibration obtained from the electromechanical vibration
transducer itself or an extension attached to the electromechanical vibration transducer is
directly transmitted. In addition to the method of imparting strong bodily sensation by
transmitting to the fingertips of the human body, and the device using this method, via the
switcher that switches by the contact and non-contact of the human hand with the above
extension body. The above problem is solved by providing a configuration for supplying an
electrical signal to the electromechanical vibration converter only when the hand is in contact
with the hand.
[0015]
[Function] The sense of the fingertip in the human body is more sensitive to the bodily sensation
than the sense by the buttocks, soles, palm, etc., and the vibration is directly transmitted to this
sensitive fingertip, so the electrical signal Even if the electric power of is relatively small, it works
to give a sufficiently strong sensation.
This effect is most often manifested more effectively when transmitting vibrations to the
fingertips of the left hand.
[0016]
Further, since the power of the electrical signal can be reduced, the electromechanical vibration
transducer itself or the electromechanical vibration transducer is installed to eliminate or reduce
the vibration noise directly generated from the chair or the floor. Acts to reduce discomfort due
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to vibration noise from such surroundings.
[0017]
Furthermore, since the electrical signal is supplied to the electromechanical vibration transducer
only when the human hand is in contact with the extension of the electromechanical vibration
transducer, the electromechanical device is not being operated during the sensation giving
operation. It acts to prevent noise generation due to vibration of a structure near the place where
the vibration transducer is mounted.
[0018]
EXAMPLE An example will be described below with reference to FIGS.
In FIG. 1 to FIG. 5, portions having the same reference numerals as those in FIG. 8 to FIG. 10 are
portions having the same functions as the portions having the same reference numerals
described in FIG.
[0019]
Method Embodiment First, an embodiment of the method will be described with reference to
FIGS. 1 and 2. FIG.
In FIG. 1, a stereo audio set 200 is a commercially available stereo audio set having left and right
speakers 201 and 202 and a player 203 such as a CD (compact disc) player. A sound is given, for
example, a music playing sound.
[0020]
The lead 204 supplies an electrical signal of acoustic frequency to the electromechanical
vibration converter 100 from an output terminal 205 corresponding to the external output
terminal from the amplifier circuit of the player 203, and the electromechanical vibration
converter 100. Directly corresponds to the above-mentioned music playing sound with respect to
the human body 300 by directly transmitting the generated vibration to the fingertip 301 of the
left hand of the human body 300 from the extension body 101 attached to the electromechanical
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vibration converter 100. It gives the sensation of vibration.
[0021]
Summarizing the configuration according to the embodiment of FIG. 1, the electromechanical
vibration converter 100 is provided in a method for experiencing vibrations obtained by
supplying an electrical signal of acoustic frequency to the electromechanical vibration converter
100. The vibration obtained from the extension body 101 is directly transmitted to the finger tip
301 of the human body 300, thereby constituting an acoustic vibration body sensation giving
method for giving a bodily sensation.
[0022]
FIG. 2 shows a portion of the hand 310 of the human body 300 in FIG. 1, and the extension 101
is formed of a solid, for example, a round tube of aluminum or a round bar of aluminum; It has a
bowl shape having a cross section smaller than the cross section of the thumb 301A of 310.
[0023]
The extension 101 is held between the finger 301 portion of the thumb 301A and the second
node portion 302 of the finger 302A, ie, the portion located between the first joint and the
second joint, The vibration of the electromechanical vibration converter 100 is directly
transmitted to the finger tip 301 of the thumb 301A and the second joint portion 302 of the
finger 302A by holding the finger 301A while pressing it firmly.
In this holding state, nerves are concentrated on the finger tip 301 of the thumb 301A and the
second node portion of the toe 302A, so that the bodily sensation can be felt sharply.
[0024]
Summarizing the configuration according to the embodiment of FIGS. 1 and 2, the vibration of
the electromechanical vibration transducer 100 is directly applied to the finger tip 301 of the
thumb 301A of the human body 300 and the second nodal portion 302 of the finger 302A. By
transmitting the vibration, a vibration is applied to a human fingertip by a hook-shaped extension
body 101 which is formed of a solid body and has a cross section smaller than the cross section
of the thumb 301A of the human body 300 while constituting an acoustic vibration body
impression application method for giving bodily sensation. That is to constitute an acoustic
vibratory sensation giving method for direct transmission.
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[0025]
[Embodiment of Apparatus] Next, an embodiment of the apparatus will be described with
reference to FIGS.
In FIGS. 3 to 5, the parts with the same reference numerals as those in FIGS. 1 and 2 have the
same functions as the parts with the same reference numerals described in FIGS. 1 and 2.
[0026]
In the cross-sectional view of FIG. 3, the electromechanical vibration converter 100 is of the
speaker voice coil type configuration similar to that of the above-mentioned first prior art, and
the whole is housed in the cover 102. ing.
Except for the portion of the gap 103 between the through hole 102A and the outer diameter of
the extension body 101, all the contacting parts in the figure of each part are fixed by adhesive
and integrated, and all The parts have a circular shape when viewed from a plane.
[0027]
The permanent magnet 104 and the yoke 105 form a field body 53, and the inside of the cover
102 is formed through a spring plate 107 of a thin metal plate, for example, a thin stainless steel
plate subjected to bluing treatment. It is fixed to
[0028]
The movable coil 51 is fixed on a holding plate 56 formed of a thin synthetic resin plate which
doubles as a diaphragm, for example, FRP, that is, a thin plate of a fiber reinforced plastic
material. A vibrating body 55 is formed by a spacer 106 fixed to the plate 56.
[0029]
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Spacer 106 is formed of a metal, eg, an aluminum material.
Further, by fixing the extension 101 attached to the electromechanical vibration converter 100
to the spacer 106, the movable body vibrates relative to the mass on the field body 53 side
including the cover 102 with respect to the extension 101. Vibration energy on the side of the
coil 51 is transmitted.
[0030]
The extension body 101 has a cross section smaller in outer diameter than the cross section of
the thumb 301A of the human body 300, for example, a metal tube or a metal bar having a cross
section of 1 cm or less in diameter, for example, 0.8 cm in diameter and 20 cm or more in length
Of aluminum tube or rod, which has a predetermined mark 101A, for example, a strip of paint or
tape, for indicating the place where the finger tip 301 of the thumb 301A is to be applied, and
extension by the round tube By pressing the convex curved surface on the outer side of the body
101 against the fingertip 301 as shown in FIG. 2, the human body 300 is given a sensation of
vibration.
[0031]
The location to which the mark 101A is applied is such that the location where the vibration
transmitted to the finger tip 301 is the strongest is selected and applied at a predetermined
frequency, for example, 150 Hz.
In many cases, it is preferable to choose the position of the "antinode" of the vibration on the
extension 101 as such a point, at the chosen desired frequency.
[0032]
The cable 110 includes a lead 111 for supplying an electrical signal of sound to the
electromechanical vibration converter 100, and a lead 112 for detecting contact / non-contact of
the hand 310 of the human body 300 with the extension body 101. The lead 111 is connected to
the movable coil 51, and the lead 112 is electrically connected to the extension 101 via the
spacer 106 by being attached to the spacer 106.
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Then, as another lead to the movable coil 51, the ground side, that is, the shield-side conductor of
the cable 110 is used.
The leads 111 correspond to the leads 204 in FIG.
[0033]
The cover 102 is formed of a synthetic resin material, for example, a fiber reinforced plastic
material, and is divided into two at the location of the spring plate 107, and the
electromechanical vibration converter 100 is placed at the lower part. After being assembled, the
upper portion is integrated and fixed.
[0034]
In FIG. 4, an acoustic frequency signal S1 is a signal having the frequency of a music
performance sound, for example, an electrical signal obtained by amplifying an electrical signal
obtained from a CD player by a required amplifier circuit. In response to this, the auditory
electrical signal 401a amplified by the buffer amplifier circuit 401 and its branch signal 401b
are supplied to the switching circuit 402 and the auditory output terminal 403.
The auditory output terminal 403 is for supplying an output signal to an electroacoustic
transducer such as the speakers 201 and 202 or the headphone 210 in FIG. 1, and the auditory
sense of the human body 300 is generated by the sound generated from the electroacoustic
transducer. Give a sense of sound through
[0035]
When the contact detection circuit 410 described later with reference to FIG. 5 detects that the
hand 310 of the human body 300 is in contact with the extension 101, the switching circuit 402
outputs the branch signal 401b to the next stage. To the low pass filter circuit 404 when the
touch detection circuit 410 detects that the hand 310 of the human body 300 is not in contact
with the extension 101. It is for switching connection, and is, for example, a switching circuit by
a relay or a transistor.
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When the branched signal 401 b is not supplied to the low pass filter circuit 404, the input
terminal of the low pass filter circuit 404 is connected to the ground side so as not to be open
impedance.
[0036]
The low pass filter circuit 404 passes only the low frequency side, for example, the frequency of
300 Hz or less, which is suitable for giving the human body 300 a sensation among the
frequency components contained in the branched signal 401b. The sensory signal 404a obtained
by performing such filtering is supplied to the power amplification circuit 405 of the next stage.
Also, if necessary, an element for changing the filtering frequency, for example, a variable
capacitor 404b is provided to be able to change the filtering frequency, or the branched signal
401b is output as the sensation signal 404a at the same frequency. .
[0037]
The power amplification circuit 405 amplifies the sensation signal 404a to a signal output 405a
of an amplitude suitable for applying the required sensation to the fingertip 301 of the human
body 300 by the electromechanical vibration converter 100 of FIG. , And output via the sensation
output terminal 406.
[0038]
The sensory output terminal 406 corresponds to the output terminal 205 of FIG. 1, and is a
terminal for connecting to the movable coil 51 through the lead 111 of the cable 110 of the
electromechanical vibration converter 100 of FIG. The ground-side lead uses the shield-side
conductor of the cable 110.
[0039]
In FIG. 5, the parts with the same reference numerals as those in FIG. 4 have the same functions
as the parts with the same reference numerals described in FIG.
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In the [circuit configuration diagram] of FIG. 5, the contact detection circuit 410 of FIG. 4 is
configured of a circuit that detects that the circuit constant has changed due to the capacitance
of the human body 300, that is, a detection circuit that operates by body effect. It is.
[0040]
In FIG. 5, the terminal 411 is a terminal for connecting to the extension body 101 through the
lead 112 of FIG. 3, and the terminal 412 is connected to the switching circuit 402 of FIG. It is a
terminal for applying a switching input, and the operation signal of each part of the circuit is as
shown in [signal waveform diagram].
[0041]
The rectangular wave generation circuit 413 applies a rectangular wave signal 413 a to the
variable terminal of the variable resistor 414.
Further, one terminal side of the variable resistor 414 is connected to the clock input terminal CL
of the flip flop circuit 418 via the first waveform shaping circuit 415 and is connected to the
ground side via the capacitor 416.
Further, the other terminal of the variable resistor 414 is connected to the data input terminal of
the flip-flop circuit 418 via the second waveform shaping circuit 417 and to the input terminal
411.
The positive phase output terminal of the flip flop circuit 418 is connected to the output terminal
412.
[0042]
Here, when the hand 301 of the human body 300 is not in contact with the extension 101
connected to the input terminal 411, the output 417a of the second waveform shaping circuit
417 is a rectangular wave signal without causing a delay. The input 416a to the first waveform
shaping circuit 415 has a lower resistance value in the figure than the variable terminal of the
variable resistor 414 and the capacitance of the capacitor 416. Since integration is performed
with a time constant mainly determined, when the predetermined waveform A1 is shaped as a
threshold value by the first waveform shaping circuit 415, as in the reference waveform output
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415a, the rectangular wave signal 413a always has a constant value. Since the signal appears as
a signal having the phase delay D1, the output of the flip flop circuit 418 is maintained at the H
level output 418a.
[0043]
When the output of the flip flop circuit 418 is the H level output 418 a, the hand 301 of the
human body 300 is not in contact with the extension body 101, so the switching circuit 402
outputs the H level from the output terminal 412. In response to the output, the branch signal
401 b is switched to the state where it is not supplied to the low pass filter circuit 404.
Therefore, the signal output 405 a is not supplied to the electromechanical vibration converter
100.
[0044]
When the hand 301 of the human body 300 is in contact with the extension 101 connected to
the input terminal 411, the capacitance of the human body 300 is connected, and the second
waveform shaping circuit 417 is obtained. The input 414a is integrated with a relatively large
time constant determined mainly by the resistance value on the upper side of the variable
terminal of the variable resistor 414 and the capacitance of the human body 300 in the figure to
become a signal 414b. When the second waveform shaping circuit 418 shapes the
predetermined level A2 as a threshold value, it becomes a signal having a phase delay of D2-D1
with respect to the reference waveform output 415a, as in the detected waveform output 417b.
As a result, the data input terminal D becomes L level at the clock point when the clock input
terminal CL of the flip flop circuit 418 is inverted from L level to H level. Since will be
maintained, the output of the flip-flop circuit 418 is maintained by inverting the L level output
418b.
[0045]
When the output of the flip-flop circuit 418 is L level output 418b, the hand 301 of the human
body 300 is in contact with the extension body 101, so that the switching circuit 402 responds
to the L level output, The branch signal 401 b is switched to be supplied to the low pass filter
circuit 404.
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Therefore, the electromechanical vibration converter 100 is supplied with the signal output
405a.
[0046]
The phase delay D1 and the phase delay D2 make it possible to properly adjust the position of
the variable terminal of the variable resistor 414, the level A1 and the level A2 so as to
preferably achieve the above function. .
[0047]
Summarizing the configuration excluding the component parts in FIGS. 3 to 4, in the apparatus
for experiencing the vibration obtained by supplying the electric signal 405 a of acoustic
frequency to the electromechanical vibration converter 100, The extension 101 attached to the
electromechanical vibration conversion device 100 has a convex curved surface that directly
presses the finger tip 301 of the human body 300, for example, a convex curved surface on the
outside of a round tube. is there.
[0048]
Also, to summarize the configuration of the embodiment according to FIGS. 3 to 5, firstly, as in
the extension body 101 of FIG. 3, the extension body 101 is a solid having a diameter of 1 cm or
less and a length of 20 cm or more. An acoustic vibratory body sensation imparting device in
which an aluminum round tube is used and the outer surface of the bowl is convexly curved,
[0049]
Second, as in the switching circuit 402 and the contact detection circuit 410 shown in FIGS. 4
and 5, the electric signal 405a supplied to the electromechanical vibration conversion device 100
An acoustic vibratory sensation imparting device is configured to supply the electric signal 405a
to the electromechanical vibration converter 100 only when the hand 310 contacts, via the
switching circuit 402 that switches between contact and noncontact.
[0050]
Thirdly, as shown by the mark 101A in FIG. 3, the predetermined mark 101A is applied to the
portion of the wedge forming the extension body 101 where the vibration transmitted to the
fingertip 301 is the strongest. It means that it constitutes an acoustic vibratory sensation
imparting device.
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[0051]
[Modified Implementation] The present invention includes implementation modified as follows.
[0052]
(1) As shown in FIG. 6, the cover 102 of the electro-mechanical vibration conversion apparatus
100 is formed with the center portion recessed and the holes 131 and 132 are provided in the
center of both surfaces, and the spacer The center portion 106 is provided with a rounded
protrusion 121, and the center portion of the yoke 105 which is in contact with the back side is
also provided with a protrusion 122. The two protrusions 121 and 122 have two fingertips, for
example, a thumb. The fingertip and the fingertip of the middle finger are configured to be
pinched and directly pressed against the fingertip to obtain a sensation.
[0053]
(2) As shown in FIG. 7, the cover 102 of the electro-mechanical vibration conversion apparatus
100 is formed with the central portion thereof being concaved to provide holes 131 and 132 at
the centers of both surfaces, and the spacer 106 Of the outer surface of the spacer 106 and the
outer surface of the yoke 105 with two fingertips, for example, the fingertips of the thumb and
the fingertips of the middle finger, directly It is configured to give a bodily sensation by pressing
it against the fingertip.
[0054]
(3) In the configurations of the above (1) and (2), instead of the contact between the extension
body 101 and the hand 310 in the contact detection circuit 410, a body effect by the contact
between the spacer 106 and the fingertip is used. Configure to perform touch detection.
[0055]
(4) The extension body 101 is constituted by using a solid body other than metal, for example, a
round tube made of a hard synthetic resin material or a bowl-like body of a round bar.
[0056]
(5) The switching operation of the switching circuit 402 is switched by pressing the microswitch
provided in the middle of the extension body 101 with a finger not directly used for feeling, for
example, a ring finger, without using the contact detection circuit 410. Configure as.
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[0057]
(7) In the configuration of FIG. 1, the portion for giving the sense of sound by hearing is
constituted by the headphone 210, and the electric signal to the headphone 210 is obtained from
the other external output terminal 205A. Do.
[0058]
(8) The components shown in FIGS. 4 and 5 are housed in a single box and provided with an
independent power supply circuit, so that the stereo audio set 200 as shown in FIG. 1 or a
portable player can be obtained. Configure to attach as an adapter.
[0059]
(9) The components shown in FIGS. 4 and 5 are integrated in the interior of the stereo audio set
200 as shown in FIG.
[0060]
(10) In the configuration of FIG. 3, the weight 101 X for adjusting the vibration amplitude at the
position where the fingertip 301 of the extension 101 is to be applied is not held by the hand
310 of the extension 101, for example, the upper side or On the lower side, a stopper 101V, for
example, a screw, for fixing the weight at a desired position on the extension 101 while being
slidably fitted along the extension 101 is provided.
[0061]
(11) The portion of the electromechanical vibration converter 100 is modified to that of the first
prior art as shown in FIG.
Further, the extension body 101 is screwed into a portion of the mounting screw 57 in the
structure of FIG.
[0062]
(12) A portion of the electromechanical vibration converter 100 is modified to that of the second
prior art as shown in FIG.
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15
[0063]
(13) A projection 101B is provided at a position to be pinched by the finger tip 301 of the
extension body 101 as in the case of [with a projection] in FIG.
This protrusion can be formed by a single-sided protrusion 101B1 or a bulge-like swelling
portion 101B2.
Further, in the case of this configuration, the cross section of the portion excluding the
protrusion 101B can be formed into a shape having no convex curved surface, for example, a
shape such as a hexagon.
[0064]
(14) The convex curved surface formed by the extension body 101 is a curved surface having a
change in curvature, for example, an elliptical shape, etc., so that different bodily sensation
strengths can be obtained by picking up portions having different curvatures.
[0065]
Summarizing the configuration according to the above [Modified embodiment], in the
configuration according to the above (1) and (2), the vibration obtained from a part of the
electromechanical vibration converter 100, that is, the spacer 106 and the yoke 102 An acoustic
vibratory body sensation imparting method for imparting bodily sensation by direct transmission
to the fingertips 301 of the human body 300;
[0066]
An acoustic vibratory sensation imparting device is provided which is provided with projections
121 and 122 for pressing the finger tip 301 of the human body 300 on a part of the
electromechanical vibration converter 100, that is, the spacer 106 and the yoke 102. It means
that there is.
[0067]
In the configuration according to the above (4), the extension body 101 is a rod-like body made
of a solid round bar having a diameter of 1 cm or less and a length of 20 cm or more, and the
outer surface of the bowl-like body is convex curved by the outer surface of the round bar. It
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constitutes an acoustic vibratory sensation device.
[0068]
In the configuration according to the above (10), the sound provided with the weight 101X
inserted so as to be able to be fixed in a slidable manner in the longitudinal direction of the
extension 101 for adjusting the amplitude of the extension 101 at the place where the fingertip
301 is applied. It means that it constitutes a vibration body feeling giving device.
[0069]
In the configuration according to the above (13), the extension body 101 attached to the
electromechanical vibration converter is provided with an acoustic vibratory sensation providing
apparatus provided with a protrusion 101 B for directly pressing the fingertip of the human
body. It is
[0070]
According to the first to eighth aspects of the present invention, as described above, the
sensation is felt by pressing a fingertip against a convex surface or a projection provided on a
part or an extension of an electromechanical vibration transducer. As a result, a sensitive
sensation can be obtained, and as a result, an effect is obtained that a sufficiently large sensation
can be obtained even if the power of the electrical signal is relatively small.
[0071]
Further, by reducing the power of the electric signal, the discomfort caused by the vibration
noise directly generated from an object such as a chair or floor provided with the
electromechanical vibration transducer or the electromechanical vibration transducer is greatly
increased. Effects can be reduced.
[0072]
Further, according to the invention of claim 6, since the contact detection circuit detects the
contact of the human body with the electromechanical vibration transducer or its extension body
to intermittently control the vibration of the electromechanical vibration transducer. There is also
an effect that the generation of unpleasant noise from the place can be automatically prevented
when not in use.
[0073]
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Brief description of the drawings
[0074]
Fig. 1 Overall configuration perspective view
[0075]
Fig. 2 Main part configuration perspective view
[0076]
Fig. 3 Main part vertical cross section
[0077]
Figure 4 block diagram of the main part
[0078]
Fig. 5 Block configuration of essential parts and signal waveform diagram
[0079]
Fig. 6 Vertical cross-sectional view
[0080]
Fig. 7 Main part vertical cross section
[0081]
Fig. 8 Main part vertical cross section
[0082]
Fig. 9 Main part vertical cross section
[0083]
Figure 10 Main part configuration front view
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[0084]
Explanation of sign
[0085]
Reference Signs List 51 moving coil 52 permanent magnet 53 field body 54 gap 55 vibration
body 56 holding plate 61 field coil 62 field body 63 vibration body 64 holding plate 71 field
body side 72 vibration body side 73 shell 74 shell 75 shell 75 palm 76 palm 100 electric
machine Vibration converter 101 Extension body 101A Mark 101B Projection 101B1 Singlesided projection 101B2 Nodular swelling part 101V Stopper 101X Weight body 102 Cover 102
A Through hole 103 Gap 104 Permanent magnet 105 Yoke 106 Space 107 107 Spring plate
110 Cable 111 Lead 112 Lead 112 121 projection 122 projection 131 hole 132 hole 200 stereo
audio set 201 speaker 202 speaker 203 player 204 lead 205 external output terminal 205A
external output terminal 210 headphone 300 human body 301 finger tip 301A thumb 302
second section portion 302A human finger 310 hand 401 amplifier for amplifier 401 amplifier
for hearing sense electric signal 401b branch signal 402 switching circuit 403 for hearing output
terminal 404 low pass filter 404a body sensation signal 404b variable capacitor 405 power
amplifier 405a signal Output 406 Body-sensing output terminal 410 Contact detection circuit
411 terminal 412 terminal 413 Square wave generation circuit 413a Square wave signal 414
Variable resistor 414a Input 414b Signal 415 Waveform shaping circuit 415a Reference
waveform signal 416 Capacitor 416a Input 417 Waveform shaping circuit 417a Output 418
Flip-flop circuit 418a H level output 414b L level output A1 predetermined level A2
predetermined level CL clock terminal D data input terminal D1 phase delay D2 phase delay S1
acoustic frequency signal
10-05-2019
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