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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of an embodiment of the present
invention, FIG. 2 is a top view of FIG. 1, and FIG. 3 is an enlarged front view of a holding unit
portion of FIG. FIG. 5 is a cross-sectional view taken along the line A-A of FIG. 3, and FIG. 5 is a
configuration explanatory view showing an example of the electric signal circuit of the
embodiment of FIG. 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · - voice dialing stroke
telephone circuit adjustment box, 8 ... Uz preparative shaped dial handset phone, 9 ... hook
switch, 10 ... code, 11 ... receiver speaker, 12 ... pressing force determination unit, DESCRIPTION
OF SYMBOLS 13 ... Cord, 14 ... Attachment fixture to a pillow, 15 ... Telephone circuit, 16 ... Mixed
amplifier, 17 ... Resistance, Anti, 18 ... Capacitor, 19 ... Equalize, 20: audio frequency oscillator,
21: amplifier, 23: cushioning material.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a boneconduction-transmission device for use as a transmitter of, for example, a car telephone. In the
past, this type of mobile telephone transmitter was a headphone type, a hand type, a handset
type, etc. because of the use of a normal 'introduction sound microphone (microphone), so noise
in the car and noise from the outside / 72 2 が-noise is thick due to noise etc. (City 7 Sphone 實)
light Ml is deteriorated and that the talker holds a hand set etc while driving a car etc. leads to an
accident by one hand continuous rotation etc There is a disadvantage that the steepness becomes
very large. In order to solve these drawbacks, the present invention uses bone noise transmitters
embedded in a head rest pillow at the top of a backrest such as a driver's bundle of a car, etc. to
transmit noises by utilizing the noise resistance of bone carriers. In addition, when driving noise
is eliminated, and in particular, when the driver talks, it is possible to transmit by simply pressing
the back of the head to the pillow, thereby achieving the safety of driving, and further
transmitting and receiving parts In order to make it convenient for use by unitizing, the drawings
will be described in detail. FIG. 1 shows an embodiment of the present invention, which is a side
view of an automobile driver. 1 is a car driver who is a talker, 2 is a hender, 3 is a backrest, 4 is a
pillow of a head rest, 5 is a bone-conduction communicator, 6 is a bone-conduction stalk and a
reception speaker holding unit, 7 Is a voice dial and various telephone circuit adjustment
terminals, 8 is a small-sized dial-in telephone set for the rear seat, 9 is a hook switch, and 10 is a
cord. FIG. 2 is a view seen from the upper part of FIG. 1; 1 is a combined reception speaker for
transmission output judgment, 12 is a pressing force judgment unit including a switch. FIG. 3 is
an enlarged front view of the car telephone basket of FIG. 1 and 1 m 2, and the bone conduction
transmitter 5 is α. Use two of β. 4 is a cross-sectional view taken along the line A-A 'of FIG. 3,
13 is a cord for the bone conduction transmitter 5 and the pressing force determination unit 12,
14 is a tool for attaching the holding unit 6 to the pillow 4; 23 is a cushioning material. FIG. 5 is
a diagram showing the electric circuit configuration of FIG. 4. 15 is a telephone circuit including
a side tone preventing circuit of the telephone and a voice dial circuit, and 16 is α. Mixed
amplifier of β2 bone conduction microphones 5, 17 is resistance, 1s is condenser, 19 is +6 dB
10 ct equalizer, 20 is an audio frequency generator for pressing force judgment, 21 is an
amplifier, 22 is a speaker It is an amplifier. That is, a plurality of bone conduction transmitters 5,
a pressing force determination unit 12, a reception speaker 1, voice dials, and various telephone
circuit adjustment accessories are integrally attached by a holding unit 6 to a pillow at the upper
backrest of a car driver's seat. .
The outputs of the bone conduction units 5 are mixed and amplified by the mixing amplifier 16
and are sent to the transmitter / receiver by the telephone circuit 15 through the equalizer 19.
When the pressing force by the driver's back of the head is determined by the pressing force
determination unit 12, an audio frequency signal is supplied from the audio frequency generator
20 to the reception speaker 11. In order for the driver to speak in such a configuration, the
avatar switch 9 is turned on. When the driver 1 does not press the head against the pressing
force determination unit 12, the switch of the unit 12 is closed so that the light image output of
the oscillator 20 outputs an output sound to the speaker 1 and the bone conductor is delivered
to the driver 1 I'm sorry. When the driver 1 presses his head against the pressing force
determination unit 12 at the rear, the switch of the unit 12 is turned off and the oscillation sound
from the speaker 1 can be stopped and transmitted. What about dialing? The driver sends out a
dial signal of the other party number by means of a voice dial of Tokusuf. V-continuous sound,
the call is received from the speaker 1. In addition, when the head is below the specified pressing
force, the switch of the pressing force determination unit 12 operates and the shooting sound is
output from the speaker 1, and the driver 1 presses the back @ part to the bone conduction
transmitter 5 And the talk will be sent again. Therefore, since the double rotation person (talker)
1 can transmit without using a hand, there is an advantage that security is higher than air gap
transmission and there is no misunderstanding. In addition, as shown in FIG. 4, there are two
bone conduction transmitters 5 of α and β, but as shown in FIG. 5, each output acts on
mutually opposing cedar, and one bone When the output of the transmitter 5 is small, the other
output is output in an opposite manner. In addition, this device is integrated with the small dial-in
telephone set I18 for transmission and reception and back seat sound by attaching to the pillow
4 by the holding unit 6, and the installation is a one-piece structure that is easy to remove .
Further, as a form of use, it can be used as a form in which various functions on the right side of
the B and B 'screws in FIG. The bone conduction transmitter 5 is a method of extracting sound
from the mechanical peristalsis of the skull of the back of the head accompanied by the driver's 1
vocalization, and is characterized by being stronger in noise than air conduction sound. In Fig. 2,
when the car has a right-hand steering wheel, speakers can be attached in the directions shown
in the figure, and in the left hand, it can be received in the auxiliary seat by attaching it in the left
direction. As described above, the car telephone using the bone-condensing telephone in FIGS. 1
to 5 can transmit by a slight head movement without using the driver's hand for safety in driving,
and It is considered that noise resistance is good, that it is unitized for various telephone
functions 11 in pillows, it is easy to be attached to a car, etc. and that the rear seat can transmit
using a normal telephone There are advantages such as
In addition, the present invention has an advantage that it can be used for car telephones, in-car
broadcasting of a boarding pass, in-car explanation of a train, a breath talk system, and the like.
As described above, according to the present invention, a plurality of bone conduction
microphones are embedded in a pillow at the head position of the back portion L of a car driver
etc., and the output of each microphone is mixed and amplified. By transmitting the speech, even
if the head is shifted, it can be transmitted well, and it is possible to transmit easily and well by
simply pressing the back of the head on the pillow. In particular, the safety of driving can be
improved. Furthermore, unitization of the transmitting and receiving part has advantages such as
easy handling.