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DESCRIPTION JPS51117511
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing an embodiment
of the present invention, FIG. 2 is a cross-sectional view taken along the line n-n, and FIGS. 3 and
4 are other embodiments of the present invention. 5 is a sectional view taken along the line V-V
of FIG. 4, FIG. 6, FIG. 6, T, FIG. 8, FIG. 9, and FIG. 11 are other embodiments of the present
invention. FIG. 10 is a cross-sectional view taken along the line X-X of FIG. 9, and FIG. 12 is a
cross-sectional view taken along the line II--II of FIG. 1 is a vibration pickup, 2 is an ear canal, 3 is
an earpiece, 3 'is a vibration transmitting portion, and 11.11' is an air leakage passage. Fig. 1 Fig.
2 Fig. 4 Fig. 5-23 One open section 51-117 5 1 (2) Fig. 3 Fig. 6 Fig. 7 Fig. 9 Fig. 10 Fig. 8 Fig. 11
Fig. 12-24 -
Detailed Description of the Invention The present invention is a communication device Kll for
picking up bone conduction audio signal CII movement from the wall of the ear canal, and (to
prevent the occurrence of the ear canal closing effect, and discomfort on the use of the wearer O
The cabinet is equipped with a communication device in order to enlive in O talk under the noise
which was eliminated. Conventionally, in order to perform voice transmission in Oll sound places
such as mining and quarrying sites in mines, 9 ports, 歇 sites or sheet metal factories, 1-method
of feeding unidirectional mirtalophone with the lips, 遍 ji ji + n There are many methods that use
dynamic bite-up in the chewing film part or part of the front, but in the case of O single-finger
meat reduction miter phone, there is a @ rise in the removal of external noise), noise O In severe
places are unsuitable, the latter method has a need to keep the bite part and the forehead-Kllll
Tsubitta a certain adhesion, its installation is on the image side) and it becomes unsightly Not
idiot 装着, not fit in O use O sense of incongruity, ferocious feeling wears and can not stand the
use of O for a long time. On the other hand, it is also known in the prior art to use the sound
pressure generated in the speaker's own ear canal to take sound pressure), and this method must
have an anti-one external ear canal vtl I 15 chain with an insensible attachment. The problem is
that the ear canal closing effect occurs at l4 h4 and the O discomfort is noticeable in use), and
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the resulting voice also has the disadvantage of emphasizing the sound in the low-pitched range
as it is h) the slaughter of the ear canal It is technically difficult to seal completely-there is a limit
to leaving am * om>, and it is not suitable for use in noisy places. The method of transmitting
using sound pressure generated in the ear canal 2 in this way has a critical drawback in terms of
external noise O removal and occurrence of the ear canal closing effect O. The present invention
is made on the heel of an eyelid, is easy to wear, uses an earpiece with good appearance, and
uses a vibration pickup capable of completely eliminating external noise, and is a wall of the ear
canal. It is a first object of the present invention to provide a speech communication system
which enables to pick up a bone conduction voice signal (vibration) from the above. The second
object of the present invention is to provide a communication device which picks up an audio
signal from the wall of the ear canal and prevents the occurrence of the effect of closing the ear
canal to eliminate discomfort and discomfort in use. The third object of the invention is to mute
the external noises from the air leakage passage into the external ear from the air leakage
passage to prevent the occurrence of the external auditory canal closing effect, and to transmit
without being bothered by the external noises. In particular, IIK, which uses earphones for
mutual communication, is to provide a communication device that makes it possible to clearly
hear reception and running even under noise.
3- The purpose of the invention and the other object of the present invention to be described
below are to make part or all of the earpieces to be attached to the ear canal of the ear as a
vibration transmitting portion and to operate the earpiece against the wall of the ear canal A
vibration pickup having a substantially perpendicular direction is provided, and the abovementioned earpiece is coupled by providing an air leakage passage to allow the ear canal to
communicate with the outside world. According to the research of the present inventor, the
speech itself is considered to be O sound vibration (hereinafter referred to as sound signal sound.
) Is referred to as a bone conduction sound signal transfer section below the ear canal wall
portion C, mainly through the path from the ribs. ), It has been found that this bone conduction
sound signal transmitter is usually in the vicinity of 10 to 20 m from the entrance of the ear
canal in the case of an adult. In addition, the sound signal transmission sO vibration is
remarkable with respect to the direction substantially perpendicular to the wall of the ear canal),
when the vibration pickup is arranged in this direction and provided in the outer earlobe, the
sound signal sound is efficiently I found that I could pick it up. Furthermore, in this case, as the
Onl motion pickup, if the operation direction is set in a direction substantially perpendicular to
the wall of the ear canal, 4-S as well as acceleration type vibration using the piezoelectric
element, displacement layer, even It is possible that contact Ii peristaltic pickups such as degrees
can be used. Furthermore, when using a contact-less contact mm dynamic pick-up as described
above, it is possible to obtain an extremely clear sound, and it is easy to remove external noise
compared to an air conduction wet vibration pick-up. It turns out that the efficiency is extremely
good9. Hereinafter, it will be described together with an actual m example in which #-of the
present noodle plan is indicated by m- based on the findings on the pot. First, the case where an
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acceleration direct placement vibration pickup is used will be described as an example of the
actual lll7A. 1 to 3 # A and 纂 7, the vibration pickup 1 is installed in the earpiece 3 inserted into
the ear canal 2 so that the operation direction is substantially perpendicular to the ear canal wall
5, Pick-up code 4 導出 led out to an amplifier (not shown). (Balanced) input connected to). An
amplifier may also be provided in the earpiece 3. The size of the t +, m motion pickup 1 is
generally adjusted so that the earpiece 5--3 is in close contact with the bone conduction sound
signal transmission 111 so as to be in contact with the hot summer -11 of the ear canal) Part
wire metal, hard synthetic resin and other materials that transmit Wllll)) to form vibration
transmission * s'. In the case of ζO, if the structure of the O-sliding bitter-up 1 is 111 pieces, the
support 6 in the earpiece 3 (spring is good.
Piezoelectric element having a heavy marriage T via (for example) lead zirconate titanate IlK
device or the like. ). The center of the piezoelectric element may be supported by a support, and a
weight may be placed on and attached to both ends of the piezoelectric bulky O (not shown).
Alternatively, one end of the piezoelectric element S may be fixed to the mm transmission s3 'of
the earpiece as shown in FIG. Next, use the displacement-type vibration pickup to lill nine cases! !
Light up. In Fig. 6 and in Fig. 81, soft synthetic l11j11 such as silicone resin, and a material that
is difficult to transmit O swing such as rubber> form the base end of the piezoelectric element
port on the earpiece 3 (t Fix both ends) with support 9 and ear canal W! And a part of the ear
piece 6- in close contact with the vibration transmission part 3 'and the transmission part 3' by
the member 10> fixed to the piezoelectric element 8. The vibration transmitting portion 3 'in this
case may be provided on both sides of the piezoelectric element as shown in FIG. Thus, according
to the present invention, as shown in the respective drawings, the air leakage passages 11 and
11 'are provided for communicating the earpiece 3Ka outer ear 2 with the outside. It is sufficient
for the passage 11, 11 'to prevent the occurrence of the ear canal closing effect, but it is
preferable to separate it from the vibration pickup 1 as shown in FIG. +, 51 and 8. In the present
invention, it is preferable to make the line air leakage passage 11 be muffled or leaked. That is,
by providing the sound absorbing material 12 along the passage, or by providing the expansion
chamber 13, the energy possessed by the ambient noise is attenuated, and ingress noise in the
bass region is mainly eliminated in this chamber 9) The entire area may be muted by using both
the material 12 and the jIi expander 13 in combination. In addition, the expansion chamber may
be provided in the direction perpendicular to the passage <(FIG. 114). See Figure 88. ), The
passage is folded at a substantially right angle K111 and is provided in front of the seventy seven
(see FIG. 6). The range of noise to be muffled can be determined by the type of sound absorbing
material, and the volume and the size of the entrance when the expansion i # I is provided, so the
noise characteristics of the place of use of the communication device according to the present
invention can be determined. Can be selected freely. Next, FIGS. 1 to 3811 and 7I! The operation
of the present invention shown in 1 will be described. First, earpieces 3. Insert s' into the ear
canal 2. Then, when the wearer utters, this speaker's own voice signal sound reaches the bone
conduction voice signal transmission IIs and vibrates the external ear canal wall. According to
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this vibration, the weight 1 is proportional to the acceleration of the vibration to apply nine
forces to the piezoelectric element 8 and the piezoelectric element 8 is proportional to the
applied force to generate nine voltages. The amplified signal is amplified and transmitted to the
outside.
The operation of the present invention shown in FIGS. 4 to 6 and 8 is the same, and the vibration
is applied to the piezoelectric element 8 through the vibration transmitting portion 4 '. Therefore,
according to the present invention, since any real jlifll is provided with the air leakage passage
11 or 11 'regardless of whether it is 8- or niji, external noise may intrude into the external ear,
but the present invention Since the vibration pickup is used, it does not affect this. On the
contrary, it can prevent the occurrence of the ear canal closing effect. Moreover, if the passage
11 is made to be a muffling construction or a sound insulation construction, the received voice
can be clearly heard when the earphone is attached to the same earbi-k or the other ear. In
addition, other representative examples of 1 l WIk pickups that can be used in the present
invention will be listed. tl) Place the coil in the magnetic field, vibrate the coil, and a! Generate a
current according to the excitation. Among them, the moving coil is abutted against the wall of
the external ear canal to transmit the lifting motion of the S-excited transmission S # to the coil
and cause the coil to generate a voltage, or the moving magnetor, that is, fix the coil. It is a
system for vibrating the direction of the magnet, or an independent magnet shop, 9-J- "5" tone,
ie, the above moving magnet moII! In the form of magnet, coil and coil, and the above am
transmission S # and Kll strong iron pieces are m-folded, and the movement of the iron pieces
changes the magnetic force crossing the coil , Etc. Moving-iron slide, which is a modification of
the above-mentioned independent magnet cage, or vibration transmission Is # to which magnetic
force is easily applied is placed in the magnetic field, and the movement of the vibration
transmission member changes the magnetic field) Thus, it is possible to use Parilet 911 or the
like of a system in which a current is generated in a nearby Kit 9 coil by K. (2) Piezoelectric j1: It
is also possible to use a vibration pick-up of a crystal disc using Rochelle salt in addition to the
above-mentioned Cefmitator weight. (3) Electret Condenser jl: The same principle as the
condenser type, but using electrets that are semipermanently charged once charged as an
element &) by using an equalizer together) 10--. "7 → +-I'm sorry. (4) Engineering C 瀧: A
cartridge in which the collecting road is embedded is provided in the earpiece, and the same
amount of ceramic as the amount of ceramic is taken.
(5) Semiconductor m: In place of the piezoelectric element described in the example of the actual
weave, a silicon semiconductor is generally used, and pressure is applied to the silicon
semiconductor) Take out to 11). In the present invention, when the above-mentioned 纏 -pickup
is installed in the earpiece, I! 紘, it is necessary to K so that the working direction is almost
perpendicular to the ear canal wall. In the present invention, since it is necessary to transmit the
vibration of the wall of the ear canal to the vibration pickup, as described above, all of the
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earpieces 9 are formed in part by a material transmitting vibration, but preferably The earpiece
O ear canal insertion S component is made of vibration transmitting material to make vibration
transmission-and the ear canal O inlet part transmits vibration such as silicone resin other O soft
plastic resin, natural rubber or synthetic rubber 1 form 11-· · 苓) 0 ′ ′ ° not depending on the
material not to be. In the present invention, an amplifier may be provided in the earpiece as
described above, or a transmitter may be provided in the earpiece. Furthermore, the air
conduction earphone 14 is incorporated in the earpiece (see SS), 9 is integrally connected via the
earpiece and the rubber ll # etc. 14 'having the passage 14' so that it can be used for mutual
communication. Anyway In (see Figure 7). ) You may attach an earphone to the other ear.
According to the present invention KTo, the following configuration O% 0 can be considered as a
displacement wedge microphone using a vibration pickup using piezoelectric elements. That is,
the stripes 9ai1. As shown in J110mm lll device etc. 1.1 1.11 zirconate such as lead zirconate,
etc. / Piezoelectric element consisting of Germany is made into a form and attached to the ear
canal 11K [II writing and to the earpiece 3! Air-leakage The thing of composition that softens 11
steps. In addition, the piezoelectric element S may be formed in a circular shape as shown in @]
i1 m and 12th, and 9 air leakage passages 11 may be provided in the center 11-, these FIGS. 9 to
12- The effect of the embodiment shown in ') 2'12-, is the same as 111f1 of the embodiment
shown in the 4th Ill-6 m 1. Home 1! In this case, for example, as indicated by an ill in the figure, a
key O 楡 IS may be provided to close the air leakage passage 11 according to the necessity.
According to the present invention, the earpiece is provided with a vibration pickup 90, and the
call Kal is mounted on the trial 1), the removal is easy), the appearance is good, and the vibration
pickup is one direction Since it was arranged so as to be substantially perpendicular to the ear
canal wall, it was possible to pick up the bone conduction sound signal efficiently, and especially
because the air leakage path was opened, the effect of closing the ear canal did not occur, and it
was uncomfortable to use. It can be removed for a long time in summer, and it can be used in
combination with an Ii'lk pickup that picks up the bone conduction sound from the ear canal
wall. It has no effect on biting up, and it is self-weight in talking by clarity O birdy voice.
4LailllD Brief Description 13-1 Same cross section showing one embodiment of the present
invention, Fig. 2 and Fig. 2-above cross section, and Fig. 3 and 4 111 show other examples of the
present invention. 5 is a cross-sectional view taken along the line v-v of FIG. 4, FIG. 6, FIG. 7 and
FIG. FIG. 11 is a cross-sectional view showing still another embodiment of the present invention,
FIG. 10 is a cross-sectional view taken along the line XX in FIG. 9, and FIG. 12 is a cross-sectional
view taken along the line xi-xi in FIG. is there. 1 is a vibration pickup, 2 is an ear canal, 3 is an
earpiece, 3 'is a vibration transmitting portion, and 11 and 11' are air leak paths. Utility model
registration out-Hiroshi Hiroshi Ono agent patent attorney Sakaguchi # # 8 (1 other) 14--------1-P
瓜 E 閂 E 'E' l "l-− (' ) (4) ■ 5 2i miso (Kan and J4-Ill "lvl (P 8 菫" 肇 −-. Seven '': = s \ 'two. "1"size + L '+ 111 taste · ° / n-ゞ \ "<"-", y \'-; To 7 yen 0 yen? (-1 '7 * @ 2 · · · and o o β-、, Ω
section-IX ■ "IXl, -mIl whistling = = mark, l !! ω91'-a7-- "," G's ", 71.6. Other than the above
mentioned agents, Tokyo-Akasaka 3-chome 610-5, Akasaka Quinnbild 4111 name (7023) Riko
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Ashi Adachi Yuki---1 W,-,-W λ
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