KR200386705Y1 - FM Stereo equipment for portable telephone - Google Patents

Abstract

The present invention relates to a FM stereo hands-free for mobile phone, the case is provided with a connection member is installed on one side and the connection port is installed on the other side, a call switch is installed on the upper part of the case, a microphone is installed on the upper part of the case, one side of the case The plug is installed in the channel switch for converting the frequency of the radio, the case is installed on one side, the LED lamp is installed on the upper portion of the case, the inside of the case is characterized in that the control unit for controlling the sound source, voice signal, You can listen to the audio source of the video and music broadcasting including MP3 sound source stored in the mobile phone or TV, DMB broadcasting which can be received from the mobile phone through the speaker installed in the vehicle in FM stereo, and also to play MP3 in the vehicle. There is an effect that you can listen to MP3 music without installing the player.

In addition, you can listen to the voice of the other party through the radio without installing a separate hands-free kit to install the mobile phone in the vehicle, so you can drive safely and use the battery power of the mobile phone continuously through the connection port. There is an effect that the reproduction of the MP3 sound source can be continued.

Description

FM stereo equipment for portable phone {FM Stereo equipment for portable telephone}

The present invention relates to an FM stereo hands-free for a mobile phone, and more specifically, to an audio source of a video and music broadcast including an MP3 (MP3) sound source stored in a mobile phone or a TV, a DMB broadcast, etc., which can be received from a mobile phone, as a stereo audio. The present invention relates to an FM stereo hands-free for a mobile phone, which allows a user to listen through the phone or use a car's audio wirelessly without a separate earphone.

In general, in order to listen to the MP3 sound source stored in the memory of the mobile phone is a situation where you listen to music using the speaker or earphone of the mobile phone itself.

And when making a call through a mobile phone, the call was stopped while listening to the currently playing sound source, and after the call was completed, the sound source was played again.

In addition, the vehicle is using only a function of making a call through a speaker installed in the vehicle using a separate hands-free, and in addition to such a function, it is used only to store power in a mobile phone.

Conventional hands-free has a problem that the size is larger than the size of the mobile phone and attached to the dashboard of the vehicle using a bolt or double-sided tape.

If hands-free is installed in the vehicle's interior, the driver and the rider may collide with the installed hands-free due to the collision of the vehicle and the collision of the body toward the front of the vehicle, resulting in a dangerous situation. It is preferable to refrain from using the hands-free to use.

In addition, it is very difficult for a normal hands-free to transmit a sound source stored in a mobile phone as a stereo signal and listen to music through a speaker installed in a vehicle, which is a product that interfaces a sound source stored in a mobile phone to a stereo broadcast through a car radio. Is not produced at present, and in order to listen to a sound source in a vehicle, the user can only listen to music through a radio, a tape or a CD installed in the vehicle.

FM stereo hands-free for mobile phones of the present invention to solve the above problems can be heard in stereo via the speaker installed in the vehicle by transmitting the sound source stored in the mobile phone to the radio via the FM receiver of the radio installed in the vehicle The purpose of the present invention is to provide an FM stereo hands-free for a mobile phone that allows the user's voice to be input to the other party through a microphone when the user calls through the mobile phone, and the voice of the other party is transmitted to the speaker through a radio installed in the vehicle. .

The present invention for achieving the above object is installed in the mobile phone connection port installed on one side of the mobile phone to power the battery of the mobile phone, input the user's voice to the mobile phone, the voice of the other party through the radio installed in the vehicle In the FM stereo hands-free for mobile phones through which voice is transmitted, a case in which a connection member is installed on one side and a connection port is provided on the other side, a call switch is installed on the upper part of the case, and a microphone is installed on the upper part of the case. A plug is installed at one side, and a channel switch for converting radio frequencies is installed at one side of the case, and an LED lamp is installed at the upper portion of the case, and a control unit for controlling a sound source and a voice signal is formed inside the case. Provides FM stereo handsfree for mobile phones.

Hereinafter, the configuration of the FM stereo hands-free for a mobile phone according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a FM stereo hands-free for a mobile phone according to the present invention, Figure 2 is a cross-sectional view showing the configuration of the FM stereo hands-free for a mobile phone according to the present invention, Figure 3 is a schematic diagram of a FM stereo hands-free for a mobile phone according to the present invention. 4 is a block diagram showing a power supply circuit of the FM stereo hands-free for a mobile phone according to the present invention, and FIG. 5 is an installation state diagram of the FM stereo hands-free for a mobile phone according to the present invention.

1 to 5, the FM stereo hands-free 1 for a mobile phone according to the present invention is provided with a case 10 in a predetermined shape, the case is divided into an upper part and a lower part, and is formed detachably. A predetermined space is formed inside the c) so that a printed circuit board (PCB) can be built in.

1, a connection member hole 10a is formed in the upper part of the case 10, a connection hole 10b is formed in the lower part, a jack hole 10c is formed in the left side, and a switch hole 10d is formed in the right side. Is formed.

Using the frequency of the radio installed in the vehicle is installed inside the case 10 in a state where various parts are listed on the PCB for the user to listen to the MP3 sound source and the voice of the other party through the speaker.

One side of the case 10 is provided with a connection member 11 to be coupled to a mobile phone connection port (not shown) installed on one side of the mobile phone 2, the connection member 11 is stored in the memory of the mobile phone (1) MP3 sound source, TV that can be received from a mobile phone, DMB broadcasting, and other audio and audio broadcasts of music broadcasts are licensed from a mobile phone so that the user can listen to FM stereo through the radio installed in the vehicle's interior.

On the other end of the connection member 11 is installed to supply power to the mobile phone 2, the same connector 12 as the mobile phone connector installed on one side of the mobile phone is installed in the connection hole 10a of the case.

The upper side of the case 10, the call switch 20 is installed, the call switch 20 when the MP3 sound source that is applied from the mobile phone (2) is applied when listening to a call or a telephone call received while listening It is used to change it to call mode.

The microphone 30 is installed on the upper side where the call switch 20 is installed, and the microphone 30 delivers a voice to the other party when the user makes a phone call.

An LED lamp 62 is installed in the case 10 at the upper side where the microphone 30 is installed.

And the plug 70 is installed in the jack hole (10c) formed on one side of the case 10 so that the voice incoming to the microphone 30 to the mobile phone (2), the plug 70 of the mobile phone (2) It is coupled to a jack (not shown) installed on one side.

On the other side where the plug 20 is installed, the channel switch 40 is inserted into the switch hole 10d of the case, and the channel switch 40 is mounted on the PCB installed inside the case 10. Is fitted on.

In addition, the channel switch 40 provides a user with a channel transmitted to the radio when an MP3 sound source applied through the mobile phone 2 and the other party's voice are output through a speaker (not shown) through a radio (not shown) installed in a vehicle. Allow to change arbitrarily.

The control unit 50 is provided inside the case 10 to control the user's voice, MP3 sound source, frequency channel selection, call, and the like, and the control unit 50 is mounted on a PCB installed inside the case 10. .

The controller 50 includes a microphone amplifier 51 for amplifying a voice applied from the microphone 30, a controller 52 for controlling gain so that a good voice can be transmitted to the counterpart with respect to the amplified voice signal, and a mobile phone. An audio amplifier 53 for amplifying the MP3 sound source applied in (2), the MP sound source or the other party's voice signal applied through the connection port 11 and the connection member 11 installed in the case 10 of the mobile phone 2; It consists of a plurality of circuits to remove the noise mixed in the divided sound source and the voice signal, and to maintain the signal flow stably by limiting the amplitude of the input signal waveform to a certain size, and any of the signals composed of the plurality of circuits The signal processor 54 outputs a sound source and a voice signal by selecting one input signal, and changes the voltage of the sound source and the voice signal applied by the signal processor 54 to oscillate ultra high frequency waves of a desired frequency. And an FM stereo modulator 55 for FM stereo modulation of the oscillated ultra-high frequency, and an amplifier 56 for amplifying the signal generated by the FM stereo modulator 55 to a level conforming to the weak radio wave standard. .

In addition, a normal button (not shown) is installed on the upper side of the main body 10 so that the connection member 11 installed on the main body 10 can be attached and detached.

The operation of the FM stereo hands-free for a mobile phone according to the present invention configured as described above will be described.

When the user wants to listen to the MP3 music stored in the memory (not shown) in the mobile phone 2 in the interior of the vehicle, first, the connection member 11 formed at one side of the case 10 in the mobile phone connector installed on one side of the mobile phone 2. Combine.

When the connection member 11 is used to play the audio source of the video and music broadcasts including the TV, DMB broadcast, etc., which can be received from the MP3 music or the mobile phone using the mobile phone 2, the sound source to be played is the connection member 11 It is applied to the control unit 50 through the.

The control unit 50 transmits the applied sound source to the speaker via a radio installed in the vehicle's interior. In this case, the power used in the control unit 50 uses power stored in the battery of the mobile phone 2 to supply a separate power source. There is no hassle for me.

The sound source applied to the control unit 50 is amplified by the audio amplifier 53, and the amplified sound source removes the noise included in the sound source by the signal processing unit 54 again, and the waveform amplitude of the input sound source is of a constant size. By restricting and maintaining a stable flow of the signal, a sound source or an audio signal is applied to the FM stereo modulator 55.

The sound source applied to the FM stereo modulator 55 is oscillated at high frequency after changing the voltage, and the oscillated ultra high frequency is applied to the amplifier 56 by synchronizing the oscillated ultra high frequency. At this time, the amplifier 56 transmits the sound source transmitted wirelessly from the radio. Amplify to a specific frequency to send to the speaker.

The amplified sound source is applied to the radio, and the applied signal is transmitted through the speaker so that the user can listen to the MP3 music played on the mobile phone 2.

The user selects a specific frequency band when the sound source to be played on the mobile phone 2 is applied to the radio. In this case, the sound source is operated at a specific frequency band by operating the channel switch 40 installed at one side of the case 10. To listen to it.

In the process of playing MP3 music through the mobile phone (2), or a call comes in or the user calls to select the call switch 20 installed on the top of the case 10 or a call made by the user Do it.

When the user talks with the other party, the voice switch inputs the microphone through the microphone in the state of interrupting the transmission of the MP3 sound source applied to the mobile phone 2 by operating the call switch 20 formed in the case 10 ( Amplified by 51 and applied to the mobile phone 2 through the plug 70 installed on one side of the case 10 and transmitted to the other party through the mobile communication base station.

The other party's voice is applied to the connection member 11 or the plug 70 through the cellular phone connection port of the mobile phone 2, and the voice applied to the connection member 11 is applied to the audio amplifier 53, and the audio amplifier ( In step 53, a predetermined voice signal is amplified and applied to the signal processor 54.

The signal processor 54 keeps the flow of the signal stable by limiting the waveform amplitude of the input voice signal to a certain magnitude, selects an input signal, and applies the voice signal to the FM stereo modulator 55.

The applied audio signal changes the voltage through the FM stereo modulator 55 and then oscillates the ultra-high frequency, modulates the oscillated ultra-high frequency into FM stereo, and applies it to the amplifier 56. In the amplifier 56, the audio signal is transmitted from the radio. To amplify the weak radio waves of the FM frequency band and apply to the radio.

The voice signal applied to the radio transmits the voice so that the voice of the other party can be heard through the speaker installed in the vehicle interior.

If the user wants to transmit to a specific channel with respect to the voice signal applied to the radio or if the current radio channel is installed differently, the voice of the other party is transmitted to the speaker by operating the channel switch 40 so that the voice signal can be transmitted from the current radio channel. do.

If the player continuously plays the MP3 sound source, the power stored in the battery of the mobile phone 2 is exhausted, and thus the MP3 sound source can no longer be played. In this case, the power source of the vehicle is applied through the connector 12.

When the power of the vehicle is applied, the adapter (not shown) is used to down the required voltage in the mobile phone 2 so that the power is applied to the battery. At this time, the adapter has an overcharge protection circuit and a battery to prevent the battery from being overcharged. The charger circuit for charging the power supply uses a designed adapter.

The power applied through the adapter is displayed through the LED lamp 62 so that the user can confirm that the battery is currently being supplied to the battery of the mobile phone 2 to determine whether the battery power is full or continuously being charged. To be able.

And in the case of the mobile phone (2) that is not currently installed standard connector 12 specified by the Ministry of Information and Communication installed a connecting member (not shown) on the connection member 11 installed on one side of the case 10 also installed a mobile phone Make it available.

4 shows a charging circuit 60. In the conventional charging circuit 60, when the power applied through the adapter is scrambled without the voltage or current waveform coming out cleanly, the load is not affected by the noise. The power is supplied through the filter 61, the noise filter 61 is used when the ordinary power is applied to store it, but in the FM stereo hands-free (1) for a mobile phone of the present invention, a separate noise filter ( 62) to ensure good quality power supply.

In addition, the control unit 50 is not mounted on the PCB, and the connection member 11, the connector 12, the microphone 62, the LED lamp 30, the call switch 20, and the channel switch 40 are mounted. Simplify the assembly process of the FM stereo hands-free for the mobile phone of the invention has the advantage of reducing the assembly time, labor costs according to the assembly process.

When explaining the effect of the FM stereo hands-free for mobile phones according to the present invention, MP3 sound source stored in the mobile phone to listen to the stereo through the speaker installed in the vehicle, so you do not need to install a separate MP3 player to play MP3 in the vehicle It has the effect of listening to music.

In addition, there is an effect that can safely drive the voice of the other party through the radio without installing a separate hands-free kit to install the mobile phone in the vehicle.

In addition, since the battery power of the mobile phone can be continuously charged through the connection port, it is an effect that can continuously play the MP3 sound source, and can be charged by connecting a standard charger.

In addition, since a separate handsfree is not installed to use a mobile phone in a vehicle, there is an effect of preventing a second accident (contact accident with a handsfree installed in a vehicle) due to a collision or a collision.

1 is a perspective view showing a stereo FM hands-free for a mobile phone according to the present invention.

Figure 2 is a cross-sectional view showing the configuration of the FM stereo hands-free for mobile phone according to the present invention.

Figure 3 is a schematic block circuit diagram of the FM stereo hands-free for a mobile phone according to the present invention.

Figure 4 is a block diagram showing a power supply circuit of the FM stereo hands-free for a mobile phone according to the present invention.

5 is an installation state of the FM stereo hands-free for a mobile phone according to the present invention.

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

1: handsfree 2: cellphone

10: case 10a: connection member hole

10b: connector hole 10c: jackhole

10d: switch hole 11: connecting member

12: connection port 20: call switch

30: microphone 40: channel switch

50: control unit 51: microphone amplifier

52: controller 53: audio amplifier

54: signal processor 55: FM stereo modulator

56: amplifier 60: charging circuit

61: filter 62: LED lamp

70: plug

Claims (2)

It is installed in the cell phone access port installed at one side of the cell phone to power the battery of the cell phone, input the user's voice through the mobile phone, and the voice of the other party is transmitted to the stereo through the speaker via the radio installed in the vehicle. To A case 10 having a connection member 11 installed at one side and a connector 12 provided at the other side is provided, a call switch 20 is installed at an upper portion of the case 10, and a microphone at an upper portion of the case 10. 30 is installed, the plug 70 is installed on one side of the case 10, the channel switch 40 for converting the frequency of the radio is installed on one side of the case 10, the upper portion of the case 10 LED lamp 62 is installed, FM stereo hands-free for mobile phone, characterized in that the control unit 50 for controlling the sound source, voice signal is formed inside the case (10). The method of claim 1, The controller 50 includes a microphone amplifier 51 for amplifying a voice applied from the microphone 30, a controller 52 for controlling a high quality voice to be transmitted to the other party with respect to the amplified voice signal, and a mobile phone 2. An audio amplifier 53 for amplifying an applied MP3 sound source, an MP sound source applied through a mobile phone port of the mobile phone 2, and a connection member 11 installed in the case 10, or a sound source divided from the voice signal of the other party It consists of a plurality of circuits to remove noise mixed in the signal and to keep the flow of the signal stable by limiting the amplitude of the input signal waveform to a certain magnitude, and selects an input signal of any one of the signals composed of the plurality of circuits. To change the voltage of the signal processor 54 for outputting the sound source and the voice signal, and the sound source and the voice signal applied by the signal processor 54 to oscillate the ultra-high frequency of the desired frequency. FM stereo modulation unit 55 for FM modulation of the deep ultra-high frequency, and the amplifier 56 for amplifying the signal generated by the FM stereo modulation unit 55 according to the weak radio wave, characterized in that for a mobile phone FM stereo hands free.