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BACKGROUND OF THE INVENTION The present invention is an apparatus developed by the
inventor Hirofumi Kimura, which is an improvement on the integrated receiver and microphone.
Attach one or more ceramic piezoelectric elements to one diaphragm, have multiple contact
faces, configure multipurpose earphones and multipurpose speakers that operate in multiple
ways according to their functions, and do not use coils (3) It is possible to eliminate the
interference of electromagnetic waves, to make a call, and to use it for communication devices
that require a call, such as wireless and wired communication, a mobile phone, and a transceiver.
2. Description of the Related Art As prior art of the present invention, there is the existence of
Japanese Patent Laid-Open No. 6-319190 by inventor Hiromura Kimura.
The above technique is an earphone having two functions in a microphone and a receiver in one
earphone, but it is complicated and impossible to communicate in both directions, which is
possible There is also the problem of electromagnetic waves, and the previous method has only
earphones, but the present invention is in the problem of trying to solve the problem so that the
speaker can also do this.
SUMMARY OF THE INVENTION A microphone function is provided by an earphone and a
speaker in which one or more ceramic piezoelectric elements are attached to a single diaphragm
and a plurality of contact surfaces are provided to enable a plurality of inputs and outputs. Bet
the solution means with a simple, non-electromagnetic device without using coils, etc.
more connecting surfaces of the ceramic piezoelectric element can be used so that signals of
transmission and reception can be simultaneously used without a switch with a single diaphragm.
A device that can process multiple transmission and reception signals by bonding them to the
DESCRIPTION OF THE PREFERRED EMBODIMENT The diaphragm with ceramic piezoelectric
element in the front view of FIG. 1 will be described with reference to the drawings, using the
diaphragm of FIG.
If a transmission signal is input to the contact surface 21, that is, if it is connected to the terminal
of an external output such as a radio or transceiver, it operates in the same manner as a general
If the amplifier with impedance conversion (6) is connected to the contact surface (23) and the
output of the amplifier is taken out from the lead wire outlet and connected to the microphone
connection terminal of the wired or wireless device, it will be blocked by external noise. Good
voice output can be obtained.
An earphone microphone that utilizes the sound vibration of the tympanic membrane, which was
previously developed, is used.
Fig. 2 can be operated with two functions by attaching one ceramic piezoelectric element to one
diaphragm and attaching the contact surface A (8) and the contact surface B (10), so it is
functionally functional It is the same as 4 but the performance is less than 1/2 for both sending
and receiving.
Fig. 3 shows two ceramic piezoelectric elements pasted on the front and back of a single
diaphragm, with contact surface A13, contact surface B (14), contact surface C (17) and contact
surface D (18). It is a diaphragm with a contact surface of
It is also possible to input a call reception signal to two contact faces and take out a call
transmission signal while canceling a call reception signal from the contact face to the other two,
which enables two-way communication, making it possible for mobile phones to be very future It
should be useful for
In addition, since signals can be transmitted and received in four directions, an external device
such as a switch is not necessary for emergency communication and the like.
Although it is not shown in the drawings, it is a diaphragm in which one or more ceramic
elements are attached to one diaphragm, a plurality of contact surfaces are provided, and a
plurality of signals and a microphone function can be simultaneously used.
The main feature of this invention is that it does not emit electromagnetic waves, electromagnetic
waves are often overlooked because they are invisible, and earphones are problematic because
they are close to the brain and eyes.
When using magnetic and dynamic earphones to listen to high power transceivers, high
frequency current may flow to the inner coil of the earphone and it may become hot, which is
very dangerous to the eye.
The present invention is not only used as an earphone and a speaker because it is configured as
described above, but it can be used both as a microphone and as a receiver, so the earphone uses
tympanic membrane vibration when used as a microphone. Therefore, since external noise does
not enter, there is an effect that communication can be performed clearly even under noise. The
difference between the previous inventions is that bidirectional communication is possible and
there is an effect that electromagnetic waves do not occur.
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