JP6369981B2 - Vibration device - Google Patents

Description

  The present invention relates to a vibration device attached to a telephone handset, and more particularly to a vibration device that can be sufficiently heard even when used in a noisy place such as an elderly person, a deaf person, or a construction site.

  Recently, a telephone handset equipped with a bone conduction speaker is known for elderly people and people with hearing loss. The telephone handset replaces an existing telephone handset so that bone conduction can be received. For example, Patent Document 1 provides a bone-conduction telephone handset that can be used by replacing an existing telephone with any model.

JP 2005-192259 A

  In general, a driving amplifier is required to drive the bone conduction speaker, and in Patent Document 1, a power source for driving the amplifier is obtained from an AC adapter.

  Further, Patent Document 1 describes that an on / off switch for the power source for driving the amplifier is installed as an additional function so as to protrude from the casing while being urged by a spring. Then, by picking up the handset from the telephone body, it is turned on by the spring action, the amplifier is turned on, and when it is lowered onto the placement part of the handset, the switch is pushed and buried in the casing. The switch is turned off.

  However, since the telephone handset described in Patent Document 1 is based on the premise that all existing telephone handsets are replaced, it is necessary to manufacture a new telephone handset and to increase the cost of the telephone handset. There is. Further, since the power source for driving the amplifier is obtained from the AC adapter, it is necessary to always connect the AC adapter to a household outlet or the like. Furthermore, it is necessary for the user to replace the telephone handset. In particular, there is a problem that an elderly person has a great mental burden for being forced to perform the work.

  The present invention has been made paying attention to the above circumstances, and its purpose is to enable bone conduction reception by simply attaching to the telephone handset without replacing the existing telephone handset. An object of the present invention is to provide a vibrating device.

  The vibration device of the present invention that has solved the above problems is a vibration device attached to a receiver, and the vibration device receives a microphone and a vibrator disposed on a speaker of the receiver, and a sound reception signal of the microphone. An electric circuit for transmitting to the vibrator, a microphone, the vibrator, and a power supply unit for driving the electric circuit, and the microphone, the vibrator, the electric circuit, and the power supply part for the handset And the electric circuit is characterized in that it has an angular velocity sensor or an acceleration sensor for detecting use or non-use of the handset.

  In the above-described vibration device, the vibrator is preferably a conductive vibrator that transmits sound by contacting the human body and vibrating the body tissue from the contact portion.

  The vibration device includes a control unit that receives a signal from the angular velocity sensor or the acceleration sensor, and a switching unit that switches between conduction and cutoff of the power source unit and the control unit, and the switching unit includes the power source The microphone is connected between the power supply unit and the control unit, and the semiconductor element that transmits a sound reception signal from the microphone to the vibrator is cut off between the power source unit and the control unit. It is preferable to include a switching element or an amplifying element that does not transmit the received sound signal from the vibrator to the vibrator.

  In the vibration device, the semiconductor element is preferably a thyristor or a semiconductor relay.

  In the vibration device, the switching unit is preferably connected to a manual switch.

  In the vibration device, the switching element or the amplifying element is preferably a field effect transistor or a mercury switch.

  In the vibration device, the microphone is preferably a tube microphone.

  In the vibration device, the power supply unit is preferably a primary battery.

In the vibration apparatus, the holder preferably includes the receiving talking device detachable Velcro (registered trademark).

  According to the vibration device of the present invention, it is possible to provide a vibration device that enables bone conduction reception by simply attaching to the telephone handset without replacing an existing telephone handset. Further, since the electric circuit of the vibration device includes an angular velocity sensor and an acceleration sensor for detecting use or non-use of the handset, the vibration device itself determines when the user uses or does not use the device. It is configured to be able to. Therefore, if it is left to the vibration device for the user, the bone conduction call can be performed with peace of mind. Furthermore, from the viewpoint of supplying power to drive the vibration device, a standby power source is not necessary and power consumption can be reduced, so that there is a great economic advantage.

1 is an overall view showing a vibration device according to an embodiment of the present invention. It is detail drawing which shows the vibration apparatus which concerns on embodiment of this invention.

  The vibration device of the present invention is a vibration device attached to a handset, and the handset is not particularly limited as long as it is an existing telephone handset, and is a landline telephone for indoor use or a handset for an outdoor public telephone. If there is, it can be applied without being limited to the model.

  Hereinafter, the case where the present invention is applied to a home-use fixed telephone will be described as an example with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals.

  FIG. 1 is an overall view showing a vibration device according to an embodiment of the present invention, and FIG. 2 is a detailed view of the vibration device. As shown in FIG. 1, a vibration device 1 according to an embodiment of the present invention is attached to a handset 2 of a home fixed telephone. As shown in FIG. 2, the vibration device 1 includes a microphone 4 and a vibrator 5 disposed on a speaker 3 of a receiver 2, and an electric circuit 6 for transmitting a sound reception signal of the microphone 4 to the vibrator 5. And a power supply unit 7 for driving the microphone 4, the vibrator 5, and the electric circuit 6, and the microphone 4, the vibrator 5, the electric circuit 6, and the power supply unit 7 to the receiver 2. It is comprised from the holder 8 (shown in FIG. 1) for fixing. The electric circuit 6 includes an acceleration sensor 9 for detecting whether the user uses the handset or not.

  The handset 2 is a handset for a home fixed telephone. There are various types of receivers depending on the model, but in the embodiment of the present invention, by using the holder 8, the microphone 4, the vibrator 5, the electric circuit 6, and the power supply unit 7 are arranged. Since it is configured to be fixed to the receiver 2, it does not depend on the shape of the receiver, and any shape receiver can be used.

  The speaker 3 is a speaker built in the handset of an existing home fixed telephone. For example, a dynamic speaker or a ceramic speaker can be used. In the embodiment of the present invention, the shape of the speaker 3 It does not specifically limit about a model etc.

  The microphone 4 converts sound from the speaker 3 into an electric signal and is disposed adjacent to the speaker 3. However, in the embodiment of the present invention, the shape, model, and the like of the microphone 4 are particularly limited. It is not a thing.

  The vibrator 5 receives the sound reception signal of the microphone 4 and is disposed adjacent to the speaker 3. However, in the embodiment of the present invention, the shape, model, and the like are not particularly limited. In consideration of reliably receiving the sound reception signal of the microphone 4, the vibrator 5 is, for example, a conductive vibrator that transmits sound by contacting the human body and vibrating the body tissue from the contact portion. Preferably there is.

  The vibrator 5 is used for, for example, a bone conduction earphone. Magnets are arranged in both the inner and outer regions of the voice coil, the magnetic force is remarkably strengthened, and the weak current change supplied to the voice coil is changed. In addition, a structure that can react instantaneously and thereby improve the sound quality and reduce the current consumption rate is used. Specifically, the vibrating part has a first magnet and a second magnet disposed on the upper surface of the substrate as a yoke attached to the center side of the diaphragm, and the first plate is disposed on the upper surface of the first magnet. And a second plate is provided on the upper surface of the second magnet, and the voice coil is positioned in the gap between the first and second plates.

  If the electric circuit 6 is for transmitting the sound reception signal of the microphone 4 to the vibrator 5 and has an angular velocity sensor or an acceleration sensor for detecting use or non-use of the receiver, In the embodiment of the invention, the components of the circuit are not particularly limited.

  The power supply unit 7 is for driving the microphone 4, the vibrator 5, and the electric circuit 6, but the type of power supply is not particularly limited in the embodiment of the present invention.

  The holder 8 is for fixing the microphone 4, the vibrator 5, the electric circuit 6, and the power supply unit 7 to the receiver 2. With the holder 8, it is possible to provide a vibration device that enables bone conduction reception by simply attaching the receiver 2 to the receiver 2 without replacing the receiver 2. In the embodiment of the present invention, the shape of the holder 8 is not particularly limited, but the microphone 4 and the vibrator 5 are considered in consideration of workability and operability when the user attaches the vibration device 1. In addition, it is preferable to use a small and lightweight casing capable of storing the electric circuit 6 and the power supply unit 7 in a compact manner. In consideration of further simplifying the attachment and detachment of the vibration device 1 to and from the receiver 2, for example, the holder 8 includes a magic tape (registered trademark) that can be attached to and detached from the receiver 2. It is preferable to adopt a configuration including a suction cup that has high absorbability and is easy to remove, and a configuration that includes silicon rubber that is excellent in workability and durability.

  The acceleration sensor 9 is not particularly limited as long as it has a function of detecting the operation of the handset 2. For example, in consideration of a reduction in size and weight of the vibration device 1, MEMS (Micro Electro Mechanical Systems). It is preferable to use a semiconductor type acceleration sensor to which the technology is applied. Further, as a substitute for the acceleration sensor 9, a commercially available angular velocity sensor can be used.

  In the embodiment of the present invention, considering that the electric circuit 6 is appropriately operated to reliably determine whether the handset 2 is used or not, the electric circuit 6 may have the following circuit configuration, for example. preferable. That is, the electric circuit 6 includes a control unit 10 that receives a signal from the acceleration sensor 9, and a power supply unit 7 and a switching unit 11 that switches between conduction and cutoff of the control unit 10. The switching unit 11 is in a conductive state between the power supply unit 7 and the control unit 10, and transmits a sound reception signal from the microphone 4 to the vibrator 5, and between the power supply unit 7 and the control unit 10. And a field effect transistor 13 that prevents the sound receiving signal from the microphone 4 from being transmitted to the vibrator 5.

  The control unit 10 detects a signal from the acceleration sensor 9, transmits the detected signal to the switching unit 11, controls connection between the power supply unit 7 and the electric circuit 6, and receives a sound reception signal from the microphone 4. It is controlled to convert the output signal and transmit it to the vibrator 5. In the embodiment of the present invention, the specification of the control unit 10 is not particularly limited as long as it has the control function of the control unit 10.

  The thyristor 12 is a three-terminal semiconductor element that can conduct between an anode and the cathode by applying a constant voltage to a gate. For example, an SCR (Silicon Controlled Rectifier: registered trademark) ) Is desirable. Further, a semiconductor relay (SSR) can be used instead of the thyristor 12.

  The field effect transistor 13 is a kind of transistor that controls a current between a source and a drain terminal by applying a voltage to a gate electrode and providing a gate (gate) for a flow of electrons or holes by an electric field of a portion called a channel. Yes, it is also abbreviated as FET (Field Effect Transistor). The field effect transistor (hereinafter referred to as FET) 13 includes a three-terminal type and a four-terminal type. In the practice of the present invention, in consideration of the functionality and workability of the FET, the source, gate, and It is desirable to use a three-terminal type that requires a drain. A mercury switch can be used in place of the FET 13.

  Next, a case where the user uses the handset 2 with the vibration device 1 according to the embodiment of the present invention will be described. By pressing (turning on) the switch SW, which is a button-like manual switch on the surface of the handset 2 to which the vibration device 1 is attached, a constant voltage is applied to the gate 12G of the thyristor 12. As a result, the anode 12A and the cathode 12C of the thyristor 12 become conductive, and the entire vibration device 1 is turned on. As a result, the control unit 10 converts the sound reception signal from the microphone 4 into an output signal, and the output signal is sent to the vibrator 5. The vibrator 5 is in contact with a user in advance, and the user can sense a received sound.

  In the embodiment of the present invention, in consideration of user convenience, it is more preferable that the button-shaped switch SW is configured to be turned on when the user holds the handset 2. For example, it is conceivable to arrange the switch SW in a portion corresponding to the palm of the user (the back of the handset 2).

  In the embodiment of the present invention, the function of the button-like switch SW is linked to the function of the acceleration sensor 9 so that the power is automatically turned on when the user holds the handset 2 in his / her hand. is there. However, in this case, the power for constantly operating the acceleration sensor 9 must be continuously supplied, and the standby power supply is not unnecessary.

  On the other hand, when the user returns the handset 2 to which the vibration device 1 is attached to the telephone body, the acceleration sensor 9 detects that the handset 2 has not moved for a predetermined time and transmits this information to the control unit 10. The control unit 10 transmits the OFF voltage to the gate 13G of the FET 13, and the current flowing between the anode 12A and the cathode 12C of the thyristor 12 is once bypassed between the source 13S and the drain 13D of the FET 13, and thereafter , The source 13S and the drain 13D of the FET 13 are disconnected. That is, the electric circuit 6 and the power supply unit 7 are cut off, and the vibration device 1 is turned off. As a result, the control unit 10 stops converting the sound reception signal from the microphone 4 into an output signal, and stops sending the output signal to the vibrator 5.

  In consideration of performing bone conduction reception appropriately and smoothly, the microphone 4 is preferably a tube microphone that can be reduced in weight and size. By using the tube microphone, it is possible to minimize howling with the speaker of the handset. In view of the complexity of taking out the AC power supply and charging work, the power supply unit 7 preferably uses, for example, a primary battery, and specifically uses an alkaline primary battery or a lithium primary battery. Is more preferable.

DESCRIPTION OF SYMBOLS 1 Vibration apparatus 2 Handset 3 Speaker 4 Microphone 5 Vibrator 6 Electric circuit 7 Power supply part 8 Holder 9 Acceleration sensor 10 Control part 11 Switching part 12 Thyristor 12A Thyristor Anode 12C Thyristor Cathode 12G Thyristor Gate 13 Field effect transistor (FET)
13S Field Effect Transistor (FET) Source 13D Field Effect Transistor (FET) Drain 13G Field Effect Transistor (FET) Gate SW Switch

Claims (9)

A vibration device attached to the handset,
The vibration device includes a microphone and a vibrator disposed on a speaker of the receiver;
An electric circuit for transmitting a sound reception signal of the microphone to the vibrator;
A power supply unit for driving the microphone, the vibrator, and the electric circuit;
A holder for fixing the microphone, the vibrator, the electric circuit, and the power supply unit to the receiver;
The vibration device, wherein the electric circuit includes an angular velocity sensor or an acceleration sensor for detecting use or non-use of the handset.   The vibration device according to claim 1, wherein the vibrator is a conductive vibrator that transmits sound by contacting a human body and vibrating a body tissue from the contact portion. The electrical circuit includes a control unit that receives a signal from the angular velocity sensor or the acceleration sensor;
A switching unit that switches between conduction and cutoff between the power supply unit and the control unit;
The switching unit is a semiconductor element that makes a conduction state between the power supply unit and the control unit and transmits a sound reception signal from the microphone to the vibrator;
2. The vibration device according to claim 1, further comprising: a switching element or an amplifying element that blocks the power supply unit and the control unit and does not transmit a sound reception signal from the microphone to the vibrator.   The vibration device according to claim 3, wherein the semiconductor element is a thyristor or a semiconductor relay.   The vibration device according to claim 4, wherein the switching unit is connected to a manual switch.   The vibration device according to claim 3, wherein the switching element or the amplifying element is a field effect transistor or a mercury switch.   The vibration device according to claim 1, wherein the microphone is a tube microphone.   The vibration device according to claim 1, wherein the power supply unit is a primary battery. The holder includes a Velcro removable to said receiving talking device, the vibration device according to claim 1.

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