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JPS50124619

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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 JPS50124619
5. Detailed Description of the Invention The present invention relates to a method and apparatus
for transmitting speech, more specifically, a method for converting voice generated by us into an
electrical signal and transmitting it to the other party simply by inserting and attaching this
apparatus to the ear canal A crystal or dynamic type representative of the device or a method of
converting an electric signal sent as it is from the other party into sound and receiving it as it is,
and relating to the device. Regardless, there are speakers, headphones, earphones, handsets, etc.
Although any of these devices or means is originally a device that converts electrical signals to
sound, it can also be used as a so-called maiscillophone that converts spatial sound waves to
electrical signals if efficiency is neglected. In order to operate each of the above-described
devices as a microphone, the purpose can be achieved by, for example, transmitting to those
devices so that sound pressure can be efficiently applied to the respective vibration systems.
Somehow, each device must be placed close to the mouth, and even if the earphone is inserted
directly into the ear canal to give a voice, it is difficult to put it to practical use because it is both
insensitive and inconspicuous. Next, as a device for converting a space sound wave into an
electric signal, there are various microphones of, for example, a crystal type, a dynamic type, a
capacitor type, a ribbon type, and a carbon-free microphone EndPage: 1. These devices are all
devices that convert the vibration of the space generated by voice into electrical signals, but
some of them, like crystal type or dynamic type microphones, convert electric signals into sound
if they add it in reverse. Although there are some that function, in any case the vibration system
is small, and due to its structure it can not be put to practical use as a device that converts
electrical signals to sound. Also, even if it were possible to convert the electrical signal to sound,
there is a risk that the devices must be brought close to the mouth and ear each time they are
sent and received. Furthermore, the aforementioned so-called microphone, which converts the
sound pressure output from the mouth into an electrical signal, needs to be held by hand or held
in some way in order to be close to the mouth. However, if the two hands can not be used, other
special cases will be inconvenient, and it may be unnatural or inconvenient when held by
something other than the hand. In any of the above cases, the transmitter is dedicated to the
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transmitter, and the receiver is designed and manufactured for the receiver only. Many can not
transmit or receive without both the independent transmitter and the receiver. It is the present
condition.
If the present invention is applied to the above-mentioned conventional 4F and it is intended to
solve various defects inherent in the prior art, the object of the present invention is therefore to
attach the device to the ear It is an object of the present invention to provide a novel
transmission method and its device capable of converting the voice emitted by the transmitter
into an electric signal and transmitting it to the other party. The other object of the present
invention is to insert the ear into the ear hole, to change the electric signal sent from the other
party into a sound and to receive the sound, and to generate the sound pressure in the ear canal
generated when we generate the sound. It is an object of the present invention to provide a novel
earplug type transmission / reception device which can be converted into an electrical signal and
transmitted to the other party. Yet another object of the present invention is to provide both
small size and light weight devices that can be inserted into the ear canal for both transmission
and reception, which is extremely convenient and particularly suitable for use as an antinoise
microphone and earphone It is an object of the present invention to provide a novel earplug type
transmission / reception device. The above and other objects of the present invention are the
above-mentioned and other objects of the present invention, wherein the conversion device of -1
m and electric 3-gas signal is attached to the ear canal, and the acoustic signal in the ear canal
conducted by the tympanic membrane etc. during vocal A transmitting method characterized by
converting the signal into a dirty signal by the device, and a main body having a fitting unit for
incorporating an audio and electrical signal conversion device and inserted into the ear canal,
and the main body The present invention is achieved by an earplug-type transmission apparatus
characterized in that it has a shield member provided to avoid noise problems or troubles in
oscillation. BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described more
particularly with reference to the accompanying drawings in which preferred embodiments of
the invention are shown. Referring to FIG. 1, there is shown a preferred embodiment of the
earplug type handset according to the present invention. In the figure, the reference numeral 1
designates a device according to the invention, in which the interconversion device 4 of electrical
signals and sound is mounted inside its body 2 and at its tip into the ear canal 18 A fitting
portion 2cL suitable for insertion is provided. In the present embodiment, the interconversion
device 4 is constituted by a combination of a bimorph, ie, a piezoelectric element 6 disposed in
the raised portion 2b of the main body 2 and a diaphragm 8 mounted inside the large diameter
of the main body 2 There is. However, it goes without saying that a crystal type, a capacitor shop
and other elements may be used for this interconversion device. The pressure iE element 6 has a
lead @ 10 fixed thereto for transmitting an audio signal. Behind the diaphragm 8 at the rear end
of the main body 2, that is, at an appropriate position of the air chamber 3, an exhaust hole 12 is
provided as a means for reducing the mechanical impedance to the vibration system in order to
vibrate the diaphragm 8 efficiently. It is provided.
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In front of the diaphragm 8 on the inner surface of the main body 2, that is, at an appropriate
position of the air chamber 5, to cancel and eliminate ambient noise caused by providing means
for reducing mechanical impedance to the vibration system A correction hole 14 is provided as a
means. As described above, in the present embodiment, the exhaust holes 12 and the correction
holes 14 are respectively provided as means for reducing the mechanical impedance to the
vibrating weir and means for eliminating the noise caused by the provision of the weir means.
Although this is only one embodiment of the present invention, there is no intention to limit it to
EndPage: 2 at all, for example, a part of the main body 2 before and after the diaphragm 8 is
made of a flexible material etc. Or any other means for reducing the mechanical impedance to
the diaphragm in order to vibrate the diaphragm 8 clearly and efficiently. It is clear that it is also
good. The shield member 16 is formed by applying, for example, 榊 tL-like paint or the like to the
inner wall of the main body 2 as a means for preventing troubles such as flooding due to external
dragonfly induction or raising due to electric shock. It is provided. It is obvious that a metal mesh
or a metal plate shield may be used as the shield member 16 in addition to the conductive filler,
and further, if the nuclear shield member 16 is limited to the inside of the main body 2 Absent. It
is more effective if the shield member 16 is coupled to the ground wire of the lead 10. Reference
numeral 20 indicates the auricle, and 22 indicates the tympanic membrane. Next, the process for
achieving the present invention and the function of the present invention will be described. In
order to convert human voices into electrical signals for transmission or to enable transmission
and reception with a single element, the installation location of the nuclear element with respect
to the human body is a problem. The mouth with the highest sound pressure would be ideal for
efficient transmission, and the ear would be better for reception. However, if it is necessary to
move a single element to the mouth when transmitting, and to the ear when receiving, it is
difficult to put it to practical use. There is nothing other than using the ear or the location
associated with it to enable both transmission and reception. Therefore, in the method and
apparatus according to the present invention, attention is paid to the fact that the tympanic
membrane that receives human hearing is related to the throat through the ear canal, and the
sound pressure generated while being weak in the ear canal when human being vocalizes
Succeeded in efficiently sensing the change of and obtained amplification. As shown in FIG. 1, the
fitting 2a of the device used in the method according to the invention is inserted into the ear
canal 18.
The micro-vibration generated through the tympanic membrane at the time of vocalization gives
a pressure change to the sound pressure diaphragm 8 in the sealed air chamber 5. In fact, since
the air holes 5 are provided in the air chamber 5, the efficiency is slightly reduced. The operation
up to here can be compared with the earphone which is an element for converting the electric
signal to the sound, but the earphone as it is described in the efficiency as described above is
poor in efficiency and becomes a sound including a vocal sound. It is difficult to offer. As shown
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in FIG. 2, even if the sound pressure is applied from the ear canal, the back surface of the
photographing rod 8 is sealed, so the mechanical impedance to the vibration system is large and
the diaphragm is damped. is there. In the device according to the invention, this machine is
provided by providing an exhaust hole 12 of an appropriate diameter taking into account the air
volume of the air chamber 3 in an appropriate part of the main body 2 at the back of the
diaphragm 8. It succeeded in reducing the dynamic impedance and efficiently taking out the
minute sound pressure in the ear canal (see FIG. 3). However, as it is, as shown in FIG. 4, ambient
noise also reaches the diaphragm 8 through the vented vent hole in the ear canal, and noise is
superimposed on the audio signal. Sound is felt to be perceived. Therefore, in the apparatus
according to the present invention, a correction hole 14 is further provided on the side of the air
chamber 8-5 in the ratio according to the present invention. In this configuration, the external
sound pressure is applied to both sides of the diaphragm 8 and hence the action neutralization
effect (Daff * rential-Cancel * ng-). Noise external sound pressure is canceled by Effgct) (see FIG.
5). Ideally, the output for the external sound pressure is zero, but it is unavoidable that the
output of the external sound pressure remains somewhat due to the phase difference for each
wavelength, the difference in the reflection coefficient, etc. It shows a good differential effect as
shown in FIG. As shown in FIG. 1, since the device # according to the present invention has high
impedance, the shield 16 is applied by applying a shield paint or the like as a means for
preventing problems such as oscillation. Thus, at the time of vocalization, the sound pressure is
conducted to the outer ear i12 by the tympanic membrane 22 etc., and the sound vibration of the
diaphragm 8 based on the sound pressure of the outer ear canal 12 is converted by the
piezoelectric element 6 into an electric signal. Line 10 comes out h * n. # The electrical signal is
transmitted as it is or amplified by an amplifier, but the means for converting mechanical slight
vibration of the diaphragm as an electrical signal and transmitting it, the EndPage: 3 method may
be known. it is obvious. Next, when the method and apparatus according to the present invention
are operated as a receiving device, this is the same as a receiving mechanism such as a normal
earphone, and the diaphragm 8 vibrates when the electric vibration reaches the pressure wL leaf
6. Since the air chamber 5 in the ear canal resonates, it is a small vibration but is efficiently
conducted to the tympanic membrane and can be heard as a sound.
Referring now to FIG. 7, there is shown a block diagram of an exemplary use of the apparatus of
the present invention. First, the circuit configuration will be described. On the A side, the earplug
type transmission / reception device 1 according to the present invention, the transmission
amplifier Ampl, the reception 4 speech amplifier Amp2, the control circuit CC1 and the switch
STi'11. SV2 is provided. The B side is similarly constructed, that is, it comprises an earplug type
transmission / reception device 1, a transmission amplifier 4rn, a reception amplifier Amp4, a
control circuit CC2 and a switch STF'3 and Sii'4. Under normal conditions, amplifiers / Lywp1,
AmF3, control circuits CCA, CC2 and switches 81111. ,! 9J? '3 is active, while the amplifiers
Amp2, ArILp4 and switch, SiF 2.5 IV4 are inactive. Therefore, the earplug-type transmission and
reception patch attached to the ear [1 is silent and quiet. Suppose now that the A-side
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transmission / reception device 1 generates an audio signal. This audio signal is amplified by the
amplifier A7Q1 and its output is applied to the control circuit CC2 on the B side which is the
other party. The amplified audio output drives the circuit CC2 so that a control signal is emitted
from the control circuit MCC2 to the switches STF'3 and sF4. As a result, the amplifier Amp3,
which has been operating in the normal state, is "off": the state, i.e. deactivated, while the
amplifier Amp4 which is inactive in the normal state is brought "on", i.e. activated . Therefore, the
voice signal amplified by the transmission amplifier Am'l) 1 on the A side is amplified again by
the reception amplifier Amp 4 on the B side and transmitted to the B11 II earplug transmission /
reception device 1 by the device. The sound signal emitted from the terminal is heard. When the
audio signal from the amplifier Amp1 disappears, the amplifier Amp4 and the switch SJI / 4,
which are currently in the creative state, immediately become inoperative 11- and at the same
time the amplifier Amp5, which is currently inoperative, the switch , SiF 3, and control circuit CC
2 are in the operating state, respectively, D! I will be sent home. When an audio signal is emitted
from the earplug type transmission / reception device 1 on the B side, each circuit device on the
FiA side operates in the same manner as described above, and in the A * ++ O earplug type
transmission / reception device 1 in FIG. It can listen to the voice emitted. The present invention
is configured as described above and operates as described above. According to the present
invention, there is provided a method and apparatus for transmitting speech not by the mouth
but by the ear, and the earplug type as described above The electrical signal sent from the other
party can be converted into a whistle and kei to be heard by simply inserting the transmitting
and receiving patch Wt into the ear canal and receiving the sound pressure, and the sound
pressure in the ear canal that occurs when we generate sound Can be converted to an electrical
signal and transmitted to the other party.
In other words, it is possible to perform both transmission and reception by wearing a small size
and light weight of the grass inserted in the ear canal. Therefore, according to the present
invention, it is possible to transmit and receive with one device without using an ordinary
microphone and the like, and it is possible to provide an extremely practical and convenient
transmitting and receiving device 12-1 As in the case of using a regular microphone while using
a mask, 'iJJ is not clogged up, and in construction sites, quarries, etc., in noisy places where there
is much noise and so on, There is an advantage that it can be used as an anti-noise microphone.
According to the present invention! Although fil is used in various electronic devices such as
telephones, transceivers, etc. 49, for example, when the ne invention is used as a normal
telephone, only by inserting and attaching this transmission / reception device to the ear canal
Since it is possible to receive the message, it is not necessary to hold the message can as in the
prior art, so that it can be used for other tasks during the rain, and in practice it can efficiently
carry out paperwork processing. Even when applied to a transceiver, there is an advantage that it
is not necessary to use a hand. Also, according to the present invention, it is possible to perform
communication in water 1I. Although the present invention has been described above in
accordance with the embodiments shown in the attached drawings, it is needless to say that n is
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merely illustrative and not restrictive.
4. Brief Description of the Drawings FIG. 1 is a cross-sectional view showing a preferred
embodiment of the earplug type transceiver according to the present invention, and FIGS. 2 to 5
are schematic diagrams for explaining the present invention, FIG. 6 is a view showing the
differential effect characteristics of the device according to the present invention, and FIG. 7 is a
schematic view showing one usage example of the device according to the present invention. 1 ···
Ear-plug type transmission and reception device, 2 · · · body, 2 · · · fitting portion, 3.5 · · · air room,
4 · · · · · · · conversion of electrical signal and sound conversion load, 6 · · ·圧 電 o piezoelectric
element, 8 ... diaphragm, 10 ... lead wire, 12 · 9 fist exhaust hole, 14 · fist · correction hole, 16 fist
··· shield · 18 · · · ear canal · 20 · · 9 ears 22 · · · tympanic membrane, Ampl to ANP4 @ @ e
amplifier, SW1 to SF3 · · · switch, CC1, CC2 · · · fist control circuit. Patent applicant Tani Denodok
・ industrial stock umbrella book 18, 15-EndPage: 5Z list of attachments attached (1)
specification 昏 1 (2) drawing 1 (3) request duplicate 1 (4) proxy letter 1 Application (5)
Application examination request letter 1 8 other agent address Chiyoda-ku, Tokyo Chiyoda-ku
Saseki 3-5-6 3 1 Pino? Name (7632) Patent attorney Yuta Kumagai EndPage: 6
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