KR20020044900A - Charging apparatus having hands-free function and method of communication using the same - Google Patents

Abstract

PURPOSE: A charger having a handsfree function and a call method using the same are provided to install connection terminals respectively in a mobile terminal and a charger so that an audio signal can be transferred and to connect the mobile terminal to the charger so that communication can be made mutually when the mobile terminal is mounted on the charged. CONSTITUTION: A charger having a handsfree function consists of a charging stand(300), a microphone(30), a speaker(40), an earphone terminal(90), a call mode selection button(60), an operation control button(70), and a power connection part(80). The earphone terminal(90), installed at the upper part of the charger in the form of a hole, is connected with a mike-earphone(50). The mike-earphone(50) is composed of a mike-earphone jack(52), an earphone(56), and the microphone(30). The mike-earphone jack(52) is connected to the earphone terminal(90). The earphone(56) outputs an audio signal into a voice signal. The microphone(30), connected between the mike-earphone jack(52) and the earphone(56), converts a voice into an audio signal.

Description

Charging apparatus having hands-free function and method of communication using the same}

The present invention relates to a charging device of a mobile communication terminal and a call method using the same, and more particularly, to a device and a method of controlling the same, which are equipped with a speaker, a microphone and an earphone, as well as a charging method, and a control method thereof.

In general, since the charging device or the general cradle of the desktop or vehicle mobile communication terminal is used only as an original function, when the user wants to make a phone call with both hands free, that is, do not use the hand while driving for safe driving. If they wanted to talk without the phone, they had to purchase and install a hands-free device separately.

However, the hands-free device transmits and receives a voice signal through an external microphone and a speaker, and thus there is a problem in that the contents of the call are disclosed to other people around. Therefore, when the user using the hands-free device does not want to disclose the contents of the call, the user must make a call after performing the operation of connecting the microphone earphone with the microphone to the earphone terminal on the top of the mobile communication terminal.

In addition, when a call request is required as soon as the mobile communication terminal is placed in the conventional desktop charging device in a state where the battery of the mobile communication terminal is exhausted, the charging device in which the mobile communication terminal is plugged in is not provided. There was a discomfort to make a call.

In addition, since the hands-free device has to be mounted at a vehicle service center, there is a problem in that it is expensive to install.

The present invention has been invented to solve the above problems, and an object of the present invention is to first make a connection terminal in the mobile communication terminal and the charging device so that the audio signal can be transmitted, when the mobile communication terminal is mounted on the charging device, The present invention provides a charging device for a mobile communication terminal and a communication method using the same.

The present invention for achieving the above object, the charging cradle for charging the battery of the mobile communication terminal; Located on one side of the charging cradle, ON and OFF to generate a call mode selection signal for selecting whether to make a call through the first mobile communication terminal through the charging cradle. A configured call mode selection button; In response to the call mode selection signal, for outputting the audio signal for the call by the user through the mobile communication terminal mounted on the charging cradle, receiving the audio signal for reception from the mobile communication terminal for outputting to the user An audio signal receiving and output unit; And a microcomputer controlling the operation of the audio signal receiving and outputting unit in response to the call mode selection signal.

The audio signal receiving and outputting unit outputs a first call audio signal by a user through the mobile communication terminal in response to the call mode selection signal, and receives the first receiving audio signal from the mobile communication terminal. Earphone terminal for output to the user; A microphone for outputting a second call audio signal by a user to the mobile communication terminal in response to the call mode selection signal; And a speaker for receiving a second receiving audio signal from the mobile communication terminal and outputting the second receiving audio signal to the user in response to the call mode selection signal.

According to the user's selection, it comprises an operation control button for generating an operation state control signal for controlling the operation state of the earphone terminal and the microphone and speaker.

In addition, the present invention includes the steps of a) determining whether the call mode is set; And b) in the call mode, outputting the audio signal for calling by the user through the mobile communication terminal mounted on the charging cradle and receiving the audio signal for reception from the mobile communication terminal. Outputting to the user,

Step b),

b-1) detecting an operation state control signal to receive and output a call and receive audio signal; b-2) in response to the operation state control signal, blocking a path of a call and reception audio signal connected to a speaker and a microphone, and switching the audio signal path to an earphone terminal; And b-3) inputting and receiving the call and reception audio signal to and from the user through the earphone terminal.

Step b),

b-21) in response to the operation state control signal, interrupting a path of a call and reception audio signal connected to an earphone terminal, and switching a path of the speaker and micro call and reception audio signal; And b-22) inputting and outputting the call and reception audio signal to and from the user through the microphone and the speaker.

As a result of the determination in step a), in the blocking mode, the audio signal for calling and receiving is cut off, and the call mode of the charging cradle is a case in which a call mode selection button is set to ON. It is characterized by having a hands-free function.

Therefore, according to the present invention, there is no need to purchase an accessory device separately, and the call can be easily made only by the charging device.

1 is a schematic configuration diagram of a charging device according to the present invention.

2 is an internal block diagram of a general mobile communication terminal.

3 is an internal block diagram of a charging device.

4 shows a call process in the charging device.

<Explanation of symbols for the main parts of the drawings>

30, 54, 254: microphone 40, 256: speaker

50: microphone earphone

60: call mode selection button 70: operation control button

80: power connection line 90: earphone terminal

200: first mobile communication terminal 210: RF processing unit

220: intermediate frequency processing unit 230: audio signal processing unit

260: electronic input and output port 280: external device connection

300: charging device 310: charging cradle

320: audio signal receiving and output unit

350: microcomputer 360: interface

400: second mobile communication terminal

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

1 illustrates a state in which a microphone earphone is employed as a speakerphone function and an earphone terminal as a charging device according to an exemplary embodiment of the present invention.

External configuration of the charging device of the present invention is the charging cradle 300, the microphone 30, the speaker 40, the earphone terminal 90, the call mode selection button 60, the operation control button 70, the power connection unit ( 80). The earphone terminal 90 is formed as a hole (Hole) on the top of the charging device, the microphone earphone 50 is connected.

The microphone earphone 50 is a microphone earphone jack 52 connected to the earphone terminal 90 and an earphone 56 for outputting an audio signal as a voice signal, and between the microphone earphone jack 52 and the earphone 56. Is connected to the microphone 30 to convert the voice into an audio signal.

As the user sets the call mode selection button 60 of the charging device 300 to the call mode or the call blocking mode, whether to make a call through the charging device 300 or not. It is possible to select whether to proceed with the call with the first mobile communication terminal 300 through.

In this embodiment, the call mode selection button 60 is set to ON, and the call mode is set to OFF.

When the call mode selection button 60 is set to an on state, that is, a call mode, the call may be made using the microphone 30, the speaker 40, and the microphone earphone 50 of the charging device 300. The user controls the charging device to use the microphone 30 and the speaker 40 or to use the microphone earphone 50 by alternatively selecting the operation control button 70.

Even when the microphone earphone 50 is connected to the charging device 300, the user can talk in various modes through a button operation of the charging device 300 using the speaker and the microphone mounted in the charging device 300. have.

2 is an internal block diagram of a general mobile communication terminal.

The RF processor 210 demodulates a frequency for a mobile communication terminal received through an antenna into a baseband signal and outputs the frequency to the intermediate frequency processor 220. The RF processor 210 receives a predetermined intermediate frequency from the intermediate frequency processor 220 and performs mobile communication. Modulated by the frequency for the terminal and transmitted through the antenna.

When the signal received from the intermediate frequency processor 220 corresponds to an audio signal that is not control information between a mobile communication terminal and a system such as a call, the audio signal processor 230 normally processes the compressed analog signal. Reduce. In the case of a digital system, this is converted into an analog signal and output to the speaker 256 of the mobile communication terminal.

In addition, in the case of an analog system, a micro-input audio signal, that is, an analog signal of a mobile communication terminal, is properly compressed and transmitted so that a normal audio signal can be transmitted in a wireless environment. In the case of a digital system, the analog signal is converted into a digital signal and transmitted.

The digital signal processor 240 processes the control signals between the mobile communication terminal and the system related to the call processing of the mobile communication terminal and transmits the control signals to the central processing unit 270.

The bell 252 is for informing the user of various alarms such as the state or transmission and reception of the mobile communication terminal, the microphone 254 converts a voice signal, that is, an analog signal into an electrical signal, and the speaker 256 converts the electrical signal into a voice. Convert to band and amplify.

The central processing unit 270 controls the entire electronic device or the like or reads information with the system to perform an appropriate command between the system and the mobile communication terminal.

The electronic input / output port 260 transmits an audio signal input from the mobile communication terminal to the charging device 300 according to a control signal input from the charging device 300 or the microphone 254 of the mobile communication terminal and Determine whether to send to speaker 256.

In addition, the electronic switch 250 controls to input and output signals to the speaker 256, the microphone 254, the bell 252, and the like under the control of the electronic input / output port 260.

The storage device 274 is a memory containing driving software for driving the CPU 270 or storing personal information, mobile communication terminal information, control information, and the like.

The external device connector 280 is a connector of the charging device 300 and power and data information while the mobile communication terminal 200 is mounted on the charging device 300. Therefore, when the mobile communication terminal 200 is mounted on the charging device 300, the mobile communication terminal 200 is supplied with power through an external power supply device, and the electronic input / output port (270) in the central processing unit (270) The signal transmitted to 260 is also transmitted to the charging device 300 through the external device connection 280.

3 is an internal block diagram of a charging device equipped with an earphone terminal for connecting a microphone, a speaker, and an earphone equipped with a microphone.

The charging device 300 is supplied with power from an external power supply device to charge the power of the mobile communication terminal 310, the audio signal receiving and output unit 320, the operation control button 70, call mode It comprises a selection button 60, the microcomputer 350 and the interface 360.

An additional terminal in addition to the charging terminal is installed in the charging device of the existing mobile communication terminal to enable communication between the mobile communication terminal and the charging device.

The charging cradle 310 receives power from the charging device 300 through the power supply means 80 and automatically charges the battery when the mobile communication terminal is mounted.

The interface 360 is a movement path of data connected to the external device connection unit 280 and the microcomputer 350 of the first mobile communication terminal mounted on the charging cradle 310. When a call request is received from a second mobile communication terminal, a receiving audio signal transmitted from the first mobile communication terminal is received through the interface. In addition, a call audio signal transmitted from the charging cradle 310 is also transmitted and received to the external device connection unit 280 of the first mobile communication terminal.

In one embodiment, the second mobile communication terminal may be a general landline telephone.

The microcomputer 350 may include a ROM storing a control operation program for controlling the overall operation of the charging device 300, a RAM temporarily storing data generated while the operation program is executed, and an electrical It is implemented as a microprocessor that is programmable and has a memory consisting of EEPROM that stores a number of option data and parameter values.

The call mode selection button 60 is composed of ON and OFF.

In this embodiment, ON is the call mode, and OFF is the cutoff mode. Therefore, when the user selects the call mode selection button 60 to the ON mode, the user enters the call mode, while the user mounts the first mobile communication terminal on the charging cradle of the charging device. Make a call with a second mobile communication terminal using a microphone earphone or speaker equipped with a microphone.

When the call mode selection signal generated by selecting ON of the call mode selection button 60 is input to the microcomputer 350, the microcomputer 350 is connected to the microcomputer 350 with the interface 360. Through the signal to the first mobile communication terminal 200 is mounted on the charging cradle 310. The signal is transmitted to the electronic input / output port 260 that controls the input / output of an audio signal inside the first mobile communication terminal 200 through the external device connection unit 280 of the first mobile communication terminal 200. The electronic switch 250 is turned off in the electronic input / output port 260 to prevent an audio signal from being input and output to the bell 252, the microphone 254, and the speaker 256.

On the contrary, when the call mode selection signal generated by selecting OFF of the call mode selection button 60 is input to the microcomputer 350, the first mobile communication terminal 200 in a similar manner to the above. Signal to the electronic input / output port (260). The electronic input / output port 260 receiving the signal turns on the electronic switch 250 so that an audio signal is input and output to the bell 252, the microphone 254, and the speaker 256.

The audio signal receiving and output unit 320 is composed of a microphone 30, a speaker 40 and an earphone terminal 90.

The operation control button 70 is configured to select one of the speaker mode and earphone mode.

Therefore, when the speaker mode is selected by the operation control button 70, the microphone 30 and the speaker 40 are used to receive and output audio signals for call and reception. In addition, when the earphone mode is selected by the operation control button 70, the call and reception audio signal is received and output by using the earphone terminal 90.

4 shows a call process in the charging device.

When the first mobile communication terminal 200 is mounted on the charging device 300, charging starts automatically (S5).

When the call request is made to the first mobile communication terminal 200 (S10), the charging device 300 calls the microcomputer 350 that receives the input of the frequency for the mobile communication terminal received by the antenna of the mobile communication terminal. It is determined whether or not the mode (S20).

Conversely, even when the first mobile communication terminal 200 requests a call, the microcomputer 350 in which the call audio signal input by the user is input determines whether the charging device 300 is in a call mode. do.

In the call mode, the audio signal for calling by the user is output to the second mobile communication terminal 400 through the first mobile communication terminal 200. In addition, the first mobile communication terminal 200 receiving the audio signal for receiving from the second mobile communication terminal 400 is received by the charging device 300 is equipped with the first mobile communication terminal 200 The receiving audio signal is sent and output to the user.

In the call mode, when the operation control button 70 to receive and output the call and reception audio signal is selected as the speaker mode (S30), the microcomputer 350 blocks the data path connected to the earphone terminal 90. . Therefore, the audio signal input from the first mobile communication terminal 200 through the interface 360 is converted into a voice signal and output to the speaker 40. Then, the voice signal is received from the microphone 30, converted into an audio signal, and output to the mobile communication terminal through the interface 360 (S35).

In addition, in the call mode, when the operation control button 70 is selected as the earphone mode (S40), the microcomputer 350 blocks the data path connected to the microphone 30 and the speaker 40, the first movement The reception audio signal input through the interface 360 from the communication terminal 200 is input to the earphone terminal 90 (S45).

In addition, the second mobile communication terminal (200) through the first mobile communication terminal 200 mounted on the interface 360 and the charger 300 to the audio signal for the call input to the earphone terminal 90 by the user ( 400).

Embodiment of the present invention is only one embodiment, many modifications and variations of the components of the present invention can be made within the scope not departing from the gist of the present invention, the present invention is not limited to the embodiment. .

As described above in detail, according to the charging device of the mobile communication terminal of the present invention and a call method using the same, the charging device is charged when passing through the mobile communication terminal, and the user operates the function of the charging device or the microphone earphone. Phone calls can be made easily by simply connecting the device to the charging device, so when the mobile terminal is mounted on the charging device, an additional operation such as connecting a hands free connector or a microphone earphone to the mobile terminal can be performed. There is no need to do it.

Claims (7)

Charging cradle for charging the battery of the mobile communication terminal; Located on one side of the charging cradle, ON and OFF to generate a call mode selection signal for selecting whether to make a call through the first mobile communication terminal through the charging cradle. A configured call mode selection button; In response to the call mode selection signal, for outputting the audio signal for the call by the user through the mobile communication terminal mounted on the charging cradle, receiving the audio signal for reception from the mobile communication terminal for outputting to the user An audio signal receiving and output unit; And And a microcomputer for controlling the operation of the audio signal receiving and outputting unit in response to the call mode selection signal. The method of claim 1, The audio signal receiving and outputting unit outputs a first call audio signal by a user through the mobile communication terminal in response to the call mode selection signal, and receives the first receiving audio signal from the mobile communication terminal. Earphone terminal for output to the user; A microphone for outputting a second call audio signal by a user to the mobile communication terminal in response to the call mode selection signal; And A speaker for receiving a second receiving audio signal from the mobile communication terminal and outputting the second audio signal to the user in response to the call mode selection signal; And an operation control button for generating an operation state control signal for controlling an operation state of the earphone terminal and the microphone and the speaker according to the user's selection. a) determining whether the call mode is set; And b) as a result of the determination of step a), in the call mode, the audio signal for calling by the user is output through the mobile communication terminal mounted on the charging cradle, and the receiving audio signal from the mobile communication terminal is received to receive the audio signal. Calling method using a charging device having a hands-free function comprising the step of outputting to. The method of claim 3, wherein step b) b-1) detecting an operation state control signal to receive and output a call and receive audio signal; b-2) in response to the operation state control signal, blocking a path of a call and reception audio signal connected to a speaker and a microphone, and switching the audio signal path to an earphone terminal; And b-3) inputting and receiving the call and reception audio signal to and from the user through the earphone terminal. The process of claim 3 or 4, wherein step b) b-21) in response to the operation state control signal, interrupting a path of a call and reception audio signal connected to an earphone terminal, and switching a path of the speaker and micro call and reception audio signal; And b-22) A communication method using a charging device having a hands-free function, further comprising the step of inputting and receiving the call and reception audio signal to and from the user through the microphone and the speaker. The method of claim 5, And as a result of the determination of step a), in the blocking mode, blocking the call and reception audio signal. The method of claim 5, The call mode of the charging cradle has a charging device having a hands-free function, characterized in that when the call mode selection button is set to ON.