KR200218483Y1 - Wire And wireless Combined Use Hannds Free Using vehicles - Google Patents

Abstract

An object of the present invention is to provide a wire-wireless combined hands-free device for a vehicle that users can selectively use.

The present invention provides a user's hands-free plug for connecting a transmission / reception voice signal to or from a mobile phone or a mobile terminal. It has a function to receive voice signal by wired by earphone or wireless by FM modulation.

Description

Wire and wireless combined hands-free device for vehicles {Wire And wireless Combined Use Hannds Free Using vehicles}

The present invention relates to a wired / wireless hands-free device for a vehicle, and in particular, between a receiving end of a mobile phone jack and a wired / wireless receiver, a voice signal received through the mobile phone jack can be wired (earphone) or wireless (car audio) according to a user's selection. The present invention relates to a wire-wireless combined hands-free device for a vehicle provided with a change-over switch that can be received through the vehicle.

It is generally known that hands-free enables a mobile terminal such as a mobile phone to be used without using a hand, so that the call can be made smoothly without disturbing driving, especially when driving a vehicle. , An example thereof is shown in FIG. 1. 1 is a view schematically showing the configuration of a conventional wireless hands-free device for a vehicle.

As shown in the figure, the mobile phone 10, which is a mobile terminal, is connected to the hands-free 20 installed in the vehicle through a connection jack 12 integrally provided in the mobile phone 10, which is a connection jack of the mobile phone 10. 12 is connected to the connection plug 22 of the hands-free 20 to enable electrical signal exchange, so that the mobile phone 10 enables voice transmission and reception through the hands-free 20. In the connection plug 22 of the hands-free 20, the voice receiving terminal 24a is supplied with an amplifying unit 26 and an FM modulating unit 28 for enabling the other party to receive a voice through the FM broadcast of the vehicle. The battery 46 and the switch 44 are provided, and the transmission microphone 30 and the sand switch 23 are provided in the transmission terminal 24b of the connection plug 22. In this configuration, when the user 'turns on' the power switch 44 of the hands-free 20, the power of the battery 46 is applied to the amplifier 26 and the FM modulator 28. When the user makes a call in the state, the user's speech is transmitted to the mobile phone 10 after passing through the transmitting terminal 24a of the connection plug 22 through the microphone 30 attached to the vehicle by the operation of the switch 23. It is input to the side and delivered to the other party. On the contrary, the conversation of the other party is input through the voice receiving terminal 24a of the connection plug 22 of the hands-free 20, amplified by the amplifier 26, and then modulated by the FM modulator 28 by the user. The user can receive a voice through a preset FM radio channel. There is also a wired hands-free that allows you to connect earphones directly to a cell phone jack to make a call.

However, in the case of the wireless hands-free, ① the problem of poor call quality due to noise when the noise occurs at the set frequency, ② the poor call quality due to noise and ambient noise while the vehicle is running, and ③ when using the phone when the efficiency of the battery decreases during use. There is a problem that cannot be done, and ④ there is a problem that the confidentiality of the currency is not guaranteed when there are passengers around. In the case of the wired hands-free, there is an advantage that the confidentiality of the call is executed unlike the wireless, but the signal line connecting the ear sets does not interfere with the driver's movement. There is a discomfort that becomes very cumbersome.

Therefore, the object of the present invention is to solve the above-mentioned shortcomings, and to use the voice signal received from the mobile phone either wirelessly via the audio of the vehicle or wired reception through the earphone according to the needs of the users. Accordingly, the present invention provides a wired / wireless combined hands-free device for a vehicle in which user convenience and wider selection of users are provided.

In order to achieve the above object, the wire-wireless combined handsfree device for a vehicle of the present invention is connected to a transmission end of a mobile phone (portable information terminal) according to the invention of claim 1, and has a microphone for transmitting a voice signal. And a connection plug for connecting a voice signal to the microphone and the mobile phone to connect a transmission and reception voice signal, and a voice signal for connecting the voice reception terminal of the connection plug to listen to the voice signal received through the mobile phone through the vehicle audio. A wireless transmitter comprising an FM modulator, a wired receiver connected to a voice receiver such as an FM modulator in the plug, and a wired receiver configured to receive voice signals received through a mobile phone in a wired manner, and a voice receiver and a wire of the connection plug. Connected between the receiver and the wireless transmitter A voice signal received from the mobile phone characterized in that it includes a switching switch for selectively connecting to one of a wired receiver or a wireless transmission unit.

Preferably, the wireless transmitter comprises a filter for rectifying the voice band, a mixer for synthesizing the voice band rectified by the filter and the FM frequency generated in the frequency oscillator, an output adjuster, and a low noise amplifier.

In addition, the switching switching unit is preferably composed of a two-stage switching switch.

Such a configuration has the effect of allowing users to conveniently select wired or wireless in using a mobile phone while driving a vehicle.

1 is a view schematically showing the configuration of a conventional wireless hands-free device for a vehicle,

2 is a view showing the configuration of a vehicle-wireless combined hands free device according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: cell phone 12: cell phone jack

100: hands free device 110: connection plug

120: wireless transmitter 121: filter

122: Mixer 123: Output adjustment unit

124: low noise amplifier 125: oscillator

130: microphone 140: wired receiver

142: earphone 160: switching switching unit

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the vehicle-wireless combined hands free device according to the present invention.

Figure 2 is a view showing the configuration of a vehicle-wireless combined hands-free device according to the present invention, the same parts as in the prior art (see Figure 1) are denoted by the same reference numerals to avoid overlapping description.

As shown in the drawings, the vehicle hands-free device 100 according to the present invention is provided with a connection plug 110 for connecting with the jack 12 of the mobile phone 10. The connection plug 110 is installed in the hands-free device 100 installed in the vehicle, and transmits and receives terminals 112a for connecting the microphone 130 and the wireless transmitter 120 and the wired receiver 140 to be described later. 112b) is provided. The connection plug 110 is connected to the microphone 130, the wireless transmitter 120 and the wired receiver 140 so as to transmit and receive a voice signal with the mobile phone 10.

A switching switch 160 formed of a switching switch 162 is provided at the voice signal receiving end 112a of the connection plug 110, and the microphone (100) is configured to transmit a user's voice to the voice signal transmitting end 112b. 130) is installed.

The switching unit 160 is connected to a wireless transmitter 120, which is an amplifier 150, an FM modulator, and a wired receiver 140, which is an earphone 142.

The wireless transmitter 120 mixes a filter 121 for rectifying a voice band, an FM frequency generated by the frequency oscillator 125, and a mixer (MIXER) 122 for synthesizing the voice band rectified by the filter 121. And an output adjuster 123, a low noise amplifier 124, and an antenna 126.

The voice signal received from the mobile phone 10 is selectively connected to either the wired receiver 140 or the wireless transmitter 120 by the switching operation of the switching switch 160, that is, the wireless transmitter 120. If it is selected to be connected to, first, the power of the battery 260 is applied to the wireless transmitter 120 of the hands-free device 100 by the power control unit 244 to achieve a ready state of receiving voice transmission. Therefore, when a call path is connected through the mobile phone 10 by a call request and incoming call by the user, the received voice signal is first amplified by the amplifier 150 to form the wireless transmitter 120. Input to the modulator side. The voice signal inputted to the wireless transmitter 120 is a frequency band rectified by the filter 121 is transmitted to the mixer 122 is transmitted to the antenna 126 of the frequency oscillator 125 to generate a corresponding FM frequency transmitted to the antenna 126 Synthesized with the frequency, the output adjuster 123 and the low noise amplifier 124 are secondarily amplified to transmit a voice signal through the antenna 126. The transmitted voice signal is played back by reproducing the voice signal received through the selected FM channel in the vehicle.

On the other hand, when the user switches the switch 162 of the switch switching unit 160 to the wired receiver 140 side, it is possible to receive the received voice signal through the earphone 142 of the wired receiver 140 give.

As described above, according to the present invention, in the use of hands-free, users can satisfy all calls using wired (earphone) or wireless (FM modulation) reception by the switching unit, so that channel interference and ambient noise during wireless use can be achieved. It has the effect of preventing the call, making the secret call, and also making it possible to receive voice over the wire when the battery is not available due to the consumption of the battery.

Claims (2)

In a vehicle hands-free having a microphone connected to a transmitting end of a mobile phone (portable information terminal) for transmitting a voice signal, A connection plug installed in a vehicle and connected to the microphone and the mobile phone to connect a transmission / reception voice signal; A wireless transmitter configured to be connected to a voice receiver of the connection plug and an FM modulator for transmitting a voice signal for listening to a voice signal received through a mobile phone through the vehicle audio; A wired receiver connected to a voice receiver such as an FM modulator in the plug and configured as an earphone for receiving a wired voice signal received through a mobile phone; And Combined between the voice receiver and the wired receiver and the wireless transmitter of the connection plug, a wired / wireless dual purpose vehicle including a switching switch for selectively connecting a voice signal received from the mobile phone to either a wired receiver or a wireless transmitter. Handsfree device. The apparatus of claim 1, wherein the wireless transmitter comprises a filter for rectifying the voice band, a mixer for synthesizing the voice band rectified by the filter and the FM frequency generated by the frequency oscillator, an output adjuster, and a low noise amplifier. Wired and wireless combined hands-free device for cars.