KR200267088Y1 - Hands free installation utilizing a microphone of contact type - Google Patents

Abstract

The present invention is a vehicle hands-free device for reducing the occurrence of vehicle accidents caused by a call while driving by allowing a driver to make a phone call using a cordless phone even when the driver is not attached to the vehicle dashboard. The present invention relates to a hanger main body in which a cordless telephone mounting unit is formed, a contact microphone which is installed in the hanger main body and detects a vibration signal according to sound generated from a cordless telephone and converts it into an electroacoustic signal. Consists of a power supply that supplies power for speakers and components, very easy to install or dismantle in a vehicle, separate cordless phone and hands-free device, even if a separate wireless transmitter and wireless receiver are not installed Wireless because there is no need to connect or disconnect It is very easy to mount or release of fire.

Description

Hands free installation utilizing a microphone of contact type}

The present invention relates to a hands-free device for a vehicle, and in particular, a driver can make a phone call using a wireless telephone even when the driver is not using his / her hand while mounted on a dashboard of a vehicle. The present invention relates to a vehicle hands-free device for reducing the occurrence of a vehicle accident due to a heavy call.

In general, hands-free devices are installed in a dashboard of a vehicle interior to reduce the risk of an accident due to a call while driving. The handsfree device is equipped with a cordless phone, which is electrically connected to the handsfree device via an earphone jack using a plugged cable. In other words, if you want to use a hands-free device in a vehicle while carrying a cordless phone, you must connect the hands-free device and a cordless phone by wire. do. This is very cumbersome. In this regard, an example of a conventional hands-free device will be described with reference to FIG. 1.

1 is a perspective view showing an example of a conventional hands-free device.

As shown in FIG. 1, the conventional hands-free device 100 includes a hanger body 110. The hanger main body 110 has a cordless telephone mounting portion 111 is formed, the cordless telephone mounting portion 111, the fixing projection 112 for fixing the cordless telephone, the power is turned on / off depending on whether the cordless telephone is installed Each of the changeover switches 113 is provided. The outer side of the hanger body 110 is provided with a knob (knob, 114) for use in detaching the radiotelephone.

The control unit 120 is connected to the hanger main body 110 through a cable 122 having a connector 121, the cigar jack plug 130 for receiving power through the cigar jack of the vehicle to the control unit 120 And the microphone 140 and the speaker 150 are connected through the cables 132, 142, and 152, respectively. The hanger main body 110 is further provided with a cable 160 having connectors 162 and 164 for connection with a radiotelephone.

That is, the cigar jack plug 130 is connected to the cigar jack of the vehicle, and the wireless telephone is mounted on the mounting portion 111 and connected to the hands-free device 100 by the cable 160 having the connectors 162 and 164. As the radiotelephone is mounted on the radiotelephone mounting portion 111, the changeover switch 113 is turned on. In this state, when the call comes in, press the call switch of the wireless telephone and make a call using the microphone 140 and the speaker 150 fixed at a predetermined position inside the vehicle.

Hands free device as shown in Figure 1 is very inconvenient to use because the connector 164 should always be plugged in or removed from the radiotelephone when the radiotelephone is attached or detached.

In addition, the conventional hands-free device is not good because it uses a number of cables and interferes with the driving of the vehicle.

It is an object of the present invention to provide a hands-free device that can be easily installed and detached from a wireless telephone and can reduce or eliminate the use of cables.

1 is a perspective view showing an example of a conventional hands-free device,

Figure 2 is a perspective view showing an example of a hands-free device using a contact microphone according to the present invention,

3 is a conceptual diagram illustrating a hands-free device of FIG. 2;

4 is a sectional view showing an example of the contact microphone of FIG. 3;

5 is a perspective view showing a modification of the hands-free device of FIG.

6 is a perspective view showing another example of a hands-free device using a contact microphone according to the present invention;

7 is a conceptual diagram for explaining another example of the hands-free device using the contact microphone according to the present invention,

8 is a view of the FIG. 7 contact microphone.

Explanation of symbols on the main parts of the drawings

10: cordless phone 12: lid

200: hands-free device using a contact microphone

210: hanger main body 211: cordless phone mounting portion

212: magnet 220, 220a: contact microphone

222: contact rod 222a: sound collecting cone

224: rubber housing 226: external vibration plate

224a, 228: condenser microphone 230: amplifier

240: speaker 250: power

260: power switch 270: cable

272: cigar jack plug 274: connector

280: control unit

An object of the present invention is a hands-free device having a mounting portion to which a cordless telephone is mounted, the hanger main body having the cordless telephone mounting portion formed thereon, which is installed on the hanger body to detect a vibration signal according to the sound generated from the cordless telephone as an electric sound signal. It is achievable by a hands-free device using a contact microphone, characterized in that it comprises a contact microphone for converting, a speaker for reproducing the electroacoustic signal to sound and a power supply for supplying the necessary power for the components.

The power source is a battery, it is preferable to be configured to further include a power switch that is installed in the hanger main body and opens and closes the power according to the opening and closing of the lid of the cordless telephone. Here, the battery is a concept including a rechargeable battery.

It is preferable to further include a control unit for controlling the operation of the amplifier and amplifier and amplifier for amplifying the electroacoustic signal generated by the contact microphone.

It is better to use a configuration in which the magnet is installed in the mounting portion of the upper body portion.

The contact microphone is a contact rod in contact with a cordless telephone mounted on a cordless telephone mounting unit, an external vibration plate that contacts the contact rod and vibrates according to the vibration of the contact rod, and is closely attached to the rear side of the external vibration plate to convert the vibration of the external vibration plate into an electric sound signal. The condenser microphone, the contact rod, the external vibration plate, and the condenser microphone may be accommodated in such a way that the rubber housing is supported to maintain the state of close contact with each other.

The contact microphone is a sound collecting cone, which is in close contact with one surface of a wireless telephone mounted on the wireless telephone mounting unit, and forms a closed space therein, and is coupled to the sound collecting cone to vibrate the vibration of the diaphragm vibrating according to the pressure change of the closed space. It is also possible to have a configuration including a condenser microphone to be converted to.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

2 is a perspective view showing an example of a hands-free device using a contact microphone according to the present invention, FIG. 3 is a conceptual view for explaining the hands-free device of FIG. 2, and FIG. 4 is a sectional view showing an example of the contact-type microphone of FIG. 3.

2 to 4, the hands-free device 200 using the contact microphone according to the present invention has a hanger main body 210 having a cordless telephone mounting unit 211 for mounting the cordless telephone 10. ). The outer appearance of the hanger body 210 and the wireless telephone mounting unit 211 is a part that can be variously modified according to the shape of the wireless telephone mounted on the wireless telephone mounting unit 211. A magnet 212 is attached to one side of the radiotelephone mounting portion 211. This is to securely hold the radiotelephone mounted on the radiotelephone mounting portion 211, but is not necessary.

The contact telephone unit 220 of the hanger body 210 of the hanger body 210 is provided. The contact microphone 220 is for detecting a vibration signal generated from a wireless telephone when a telephone is mounted on the wireless telephone mounting unit 211 and converts it into an electric sound signal.

As the contact microphone 220, one shown in Fig. 4 may be used. 4 illustrates an example of the vacuum contact condenser microphone, and includes a contact rod 222 protruding outside the cordless phone mounting portion 211 of the hanger main body 210. The contact rod 222 is a portion which is in direct contact with the wireless telephone when the wireless telephone is mounted on the wireless telephone mounting portion 211. The contact rod 222 is coupled to the rubber housing 224. Inside the rubber housing 224, the hemispherical outer vibrating plate 226 is in contact with the contact rod 222 in a vacuum sealed state, and a condenser microphone 228 is installed behind the rubber housing 224.

That is, when the wireless phone is vibrated by the sound output of the wireless telephone in the state in which the contact rod 222 is in contact with the wireless telephone 10, the contact rod 222 is also vibrated, and the external vibration plate is in contact with the contact rod 222. 226 is also vibrated in the same manner as the contact bar 222. Accordingly, the air between the vibration plate and the external vibration plate 226 in the condenser microphone 228, which is adhered to the external vibration plate 226 in close contact with each other and is in a vacuum state, is sealed so that the minute physical vibration of the external vibration plate 226 is condenser microphone. It is transmitted as it is to the diaphragm in 228 and converted into an electroacoustic signal.

As described above, the contact microphone 220 may be one that is already known and developed and distributed, and may be used in the future.

As shown in the drawing, the contact microphone 220 is connected to a speaker 240 through an amplifier AMP 230. That is, the electroacoustic signal generated by the contact microphone 220 is amplified by the amplifier 230 and output through the speaker 240.

In the hands-free device 200 using the contact microphone as shown in FIG. 2, a battery is used as a power source 250 for supplying electrical energy to the contact microphone 220, the amplifier 230, the speaker 240, or the like. Just do it. Of course, the term battery here is a concept including a rechargeable battery that can be recharged after use.

The hands-free device 200 as shown in Figs. 2 and 3 is provided with a power switch 260 operated by the lid 12 of the radiotelephone 10. As shown in Figs. The power switch 260 is to reduce the energy consumption of the battery. The hands-free device 200 according to the present invention is preferably installed via a cushioning means between the vehicle to reduce the influence of the vehicle vibration, and may be attached by using a screw or using a double-sided tape on the back. .

The hands-free device 200 according to the present invention further includes a controller 280. The fisherman 280 is for controlling the operation of each component, such as the amplifier 230, the speaker 240, the contact microphone 220. The controller 280 is capable of processing an electroacoustic signal generated by the contact microphone 220, which may be already developed and sold in the market.

That is, when the lid 12 of the cordless telephone 10 is opened for a call in a state where the clamshell cordless telephone is mounted in the hands-free device 200 according to the present invention, the lid 12 is rotated about a support point and the power switch Pressurize 260. Accordingly, the power switch 260 of the hands-free device 200 using the contact microphone according to the present invention is turned on, and power is supplied to the required portion, and the hands-free device using the contact microphone 220 according to the present invention. 200 is activated.

When the vehicle driver speaks to talk with the other party in the above state, it is input through the microphone built in the radiotelephone 10 and delivered to the other party. Of course, the high performance microphone may be directly installed in the hands-free device 200 using the contact microphone according to the present invention, but this is optional.

On the other hand, when the sound by the call counterpart is output through the speaker of the radio telephone 10, the radio telephone 10 vibrates according to the sound. The vibration is transmitted to the contact microphone 220 through the contact rod 222 is converted into an electroacoustic signal, amplified by the amplifier 230 and output through the speaker 240 as sound.

If the lid 12 of the wireless telephone 10 is closed after the call, the power switch 260 is turned off to prevent the consumption of electrical energy of the battery.

When making a call through the hands-free 200 using the contact microphone according to the present invention as described above, the voice of the other party of the caller is output to the speaker 240 of the hands-free device 200, and the caller's voice is used in the present invention. Without passing through the hands-free device 200 according to the input via the microphone of the radio telephone 10 itself is transmitted to the other party's radio telephone.

Hands-free device according to the present invention as described above is easy to make and looks good because it does not require a cable, and makes it easy to mount and detach the wireless telephone.

5 is a perspective view illustrating a modification of the hands-free device of FIG. 2.

The hands-free device 200 according to the present invention may be configured to further include a cable 270 in which a cigar jack plug 272 and a connector 274 are installed so that the power of the vehicle can be used. If you do this, you can also charge the cordless phone. The rest is the same as described with reference to FIG.

The hands-free device 200 as shown in FIG. 5 is more complicated than the hands-free device 200 of FIG. 2, but since only one cable is used, the structure is relatively simpler than that of the conventional hands-free device. Optionally available.

6 is a perspective view showing another example of a hands-free device using a contact microphone according to the present invention.

The hands-free device 200 of FIG. 6 allows power of a vehicle to be used instead of a battery as a power source.

As can be seen in Figure 6, the hands-free device 200 using the contact microphone according to the present invention is provided with a hanger body 210 having a cordless telephone mounting unit 211 for mounting a cordless telephone. The cordless phone mounting unit 211 of the hanger body 210 is provided with a contact microphone 220 for detecting vibration of the cordless phone and a magnet 212 for firmly holding the cordless phone. Since the hanger main body 210 does not use a battery, unlike in FIGS. 2 and 5, the hanger main body 210 may not have a portion for accommodating the battery and a power switch. In this case, power is supplied from the vehicle. The rest is the same as described with reference to FIG.

7 is a conceptual diagram illustrating another example of the hands-free device using the contact microphone according to the present invention, and FIG. 8 is a view showing the contact microphone of FIG. 7.

As can be seen in FIGS. 7 and 8, in some cases, the contact microphone 220a includes a rubber sound collecting cone 222a and a condenser microphone 224a installed at the rear end of the sound collecting cone 222a. Doing.

That is, when the radiotelephone 10 is mounted on the radiotelephone mounting portion, the rear surface of the radiotelephone 10 is in close contact with the sound collecting cone 220a. Accordingly, the interior space 226a of the sound collecting cone 220a is kept closed. In this state, when the other party's sound is output from the speaker of the radiotelephone 10 in the process of talking with the other party using the radiotelephone 10, the radiotelephone 10 vibrates according to the sound. Accordingly, a minute pressure change of the closed inner space 226a inside the sound collecting cone 222a is transmitted to the diaphragm 228a of the condenser microphone 224a, and the diaphragm 228a vibrates. The condenser microphone converts the vibration of the diaphragm 228a into an electroacoustic signal and outputs it. The rest is the same as described earlier.

Of course, other types of contact microphones may be used other than those described above.

As can be seen from the above description, the hands-free device using the contact microphone according to the present invention requires no cable exposed to the outside or only one cable for power supply is used to handle the cable when installed in a vehicle. It helps to solve the problem. That is, the hands-free device using the contact microphone according to the present invention is very easy to install or dismantle in a vehicle.

In addition, even if a separate wireless transmitter and a wireless receiver are not installed, the wireless telephone and the hands-free device do not need to be connected or separated by a separate cable, and thus the installation or detachment of the wireless telephone is very convenient.

Claims (6)

In the hands-free device having a mounting portion to which a radiotelephone is mounted, A hanger body in which the cordless telephone mounting portion is formed; A contact microphone installed in the hanger main body to detect a vibration signal according to sound generated from the radio telephone and convert the vibration signal into an electric sound signal; A speaker for reproducing the electroacoustic signal as sound; And Hands-free device using a contact microphone, characterized in that it comprises a power supply for supplying the power required for the components. The hands-free device of claim 1, wherein the power source is a battery, and further comprising a power switch installed in the hanger main body and opening and closing the power source according to whether the lid of the cordless telephone is opened or closed. . The hands-free device of claim 1, further comprising an amplifier for amplifying the electroacoustic signal generated by the contact microphone, and a controller for controlling the operation of the amplifier and the speaker. The hands-free device using a contact microphone according to claim 1, wherein a magnet is provided in a mounting portion of the main body portion. The contact microphone according to claim 1, wherein the contact microphone is provided with a contact rod contacting the radio telephone mounted on the cordless telephone mounting unit, an external vibration plate contacting the contact rod and vibrating according to the vibration of the contact rod, and a rear surface of the external vibration plate. A contact microphone, which is in close contact and converts the vibration of the external vibration plate into an acoustic signal, and a rubber housing that accommodates the contact rod and the external vibration plate and the condenser microphone so as to be maintained in close contact with each other. Hands free device using. The method of claim 1, wherein the contact microphone is a sound collecting cone which is in close contact with the surface of one side of the wireless telephone mounted on the wireless telephone mounting portion to form a closed space therein, coupled to the sound collecting cone according to the pressure change of the closed space Hands-free device using a contact microphone, characterized in that it comprises a condenser microphone for converting the vibration of the vibrating diaphragm into an electroacoustic signal.