KR20060020504A - Apparatus and method of communicating a numeral message - Google Patents

Abstract

The present invention relates to an apparatus and method for transmitting / receiving numeric messages during a call in a mobile communication terminal, in particular, which enables data communication during a voice call.

According to an aspect of the present invention, there is provided a method of transmitting and receiving a numeric message during a call, comprising: performing a voice call between a transmitting terminal and a receiving terminal; Requesting transmission of a numeric message to a transmitting terminal by a user of the receiving terminal operating a DTMP receiving function; Receiving, by the transmitting terminal, the numeric message from the user by the request for transmitting the numeric message, converting the numeric message into a DFM signal and transmitting the numeric message to the receiving terminal; And extracting, by the receiving terminal, a DTP signal from the wireless signal received from the transmitting terminal, converting the DTP signal into a numeric message and informing the user.

Terminal, DTMF, Numeric Message

Description

Apparatus and method of communicating a numeral message}             

1 is a view showing a frequency according to each key of the conventional terminal key input unit.

Figure 2 is a block diagram of a mobile communication terminal capable of transmitting and receiving numeric messages during a call according to the present invention.

3 is a flowchart illustrating a numerical message transmission operation using DMP in a terminal according to the present invention.

4 is a flowchart illustrating an operation of receiving a numeric message using a DMP in a terminal according to the present invention.

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

200: duplexer 210: DTMF decoder 220: display

202: wireless transmission unit 212: voice processing unit 222: key input unit

204: frequency synthesizer 214: DTMF encoder 224: storage

206: wireless receiving unit 216: control unit

208: DTMF signal extraction unit 218: switch unit

The present invention relates to an apparatus and method for transmitting / receiving a numeric message during a call of a mobile communication terminal, in particular, in order to transmit / receive a numeric message so that data communication is possible in a call state between terminals.

In general, a signal generated when the telephone is pressed is sent to a telephone station as a dual tone multi frequency (DTMF) signal. The DFM signal is about 10 times faster than the dial pulse, has a low rate of error in dialing, has a short occupancy time of signaling devices, a large number of digit information, and can be used for various special services.

Frequency of each button of the key input unit of the phone as shown in FIG.

1 is a diagram illustrating frequencies according to buttons of a conventional terminal key input unit. Referring to FIG. 1, buttons in the vertical direction of the terminal key input unit form a high frequency group, and buttons in the horizontal direction form a low frequency group.

That is, each button of the terminal produces two sounds having a specific frequency so that one voice belongs to a high frequency and the other one is a sound belonging to a low frequency so that the voice cannot imitate the sound.

In general, the mobile terminal is capable of transmitting and receiving data such as numeric and text information as well as voice calls.

In particular, the data communication is a function that is not implemented in a conventional wired telephone, so that a user can receive a simple numeric message transmission and reception using a terminal, and thus is provided as a very useful function for a user.

However, the conventional terminal has a problem that a voice call for a voice call and a data call for data communication are distinguished, so that data communication cannot be simultaneously performed during a voice call. That is, when a voice call is performed after the voice call is connected, data transmission and reception such as a simple numeric message is also impossible, which causes inconvenience in use.

The present invention enables to transmit and receive a numeric message during a voice call so that data communication can be performed even during a voice call after a voice call is connected, thereby providing easy and accurate numerical information to the counterpart during a voice call. There is this.

In order to achieve the above object, an apparatus for transmitting and receiving a numeric message during a call of a terminal according to the present invention,

A key input unit including a button for switching to a DMP reception mode during a voice call by a user;

A DMP encoder unit converting a numeric message input from the user through a key input unit into a DFM signal during a voice call and outputting the DFM signal through a wireless transmitter;

A DFM extracting unit for extracting a DTF signal among the signals received from the counterpart terminal through the radio receiver;

A DFM decoder converting the DTF signal output from the DMF extractor into a numeric message;

A storage unit for storing the numeric message converted by the DPM decoder;

And a controller configured to display the numeric message converted by the DTMP decoder in a display unit.

Method of transmitting and receiving a numeric message during a call of the terminal according to the present invention,

Performing a voice call between a transmitting terminal and a receiving terminal;

Requesting transmission of a numeric message to a transmitting terminal by a user of the receiving terminal operating a DTMP receiving function;

Receiving, by the transmitting terminal, the numeric message from the user by the request for transmitting the numeric message, converting the numeric message into a DFM signal and transmitting the numeric message to the receiving terminal;

And extracting, by the receiving terminal, the DTF signal from the signal received from the transmitting terminal, converting the DTP signal into a numeric message and informing the user.

Preferably, the DMP reception function of the receiving terminal is operated simultaneously with the selection of the DTP reception enable button provided on the key input unit, and the DTP reception function is terminated upon repeated selection.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram schematically illustrating a configuration of a terminal capable of receiving a numeric message during a call according to the present invention.

2, a terminal capable of receiving a numeric message during a voice call includes a duplexer 200, a wireless transmitter 202, a frequency synthesizer 204, a wireless receiver 206, and a DFM signal extractor 208. , DMP decoder 210, voice processor 212, DMP encoder 214, control unit 216, switch unit 218, display unit 220, key input unit 222, storage unit ( 224).

The duplexer 200 receives a radio signal received from an antenna and outputs the radio signal to the radio receiver 206, and outputs a transmission signal transmitted from the radio transmitter 202 through the antenna.

The wireless receiver 206 outputs this to the controller 216 when receiving a numeric message, and outputs a voice signal received in the call mode to the voice processor 212.

The frequency synthesizing unit 204 generates a local oscillation signal for demodulating a reception signal in response to a reception channel under the control of the control unit 216, and generates a transmission carrier signal to receive a carrier received from the wireless reception unit 206. The signal is synthesized and output to the duplexer 200.

The DFM signal extractor 208 extracts the DFM signal from the data signal received from the wireless receiver 206 during the voice call, and outputs the DFM signal to the DMF decoder 210.

The DMP decoder 210 decodes the DFM signal received from the other party output from the DFM signal extractor 208, converts the DFM signal into a numeric message, and outputs the numeric message.

The DMP encoder 214 receives a numeric message applied from the control unit 216 during a voice call, encodes the digital message into a DFM signal, and outputs the digital message to the wireless transmitter 202.

The controller 216 controls the overall operation of the mobile communication terminal, and in particular, the DMP encoder unit 214 controls the DMP encoder unit 214 to input a numeric message for data transmission during a voice call of the mobile communication terminal. It is converted to F signal and transmitted.

In addition, the controller 216 controls the DFM signal extractor 208 and the DFM decoder 210 to convert the DTM signal received from the other party into a numeric message and display the converted message on the display unit 220.

Here, the numeric message corresponds to numeric information (0 to 9, #, *) such as a telephone number or an account number.

The voice processor 212 demodulates the coded voice signal received from the wireless receiver 206 and outputs the converted voice signal to the speaker through the switch unit 218, and converts the signal converted into an electric voice signal by a microphone. Coded as an electrical voice signal through the (218) is output to the wireless transmitter 202.

In addition, the storage unit 224 includes a program storing control data necessary for controlling the control unit 216, and an operation program of the control unit for transmitting and receiving a numeric message in real time using a DTP signal during a voice call. It is built.

In addition, the storage unit 224 temporarily stores data generated during the program control.

The key input unit 222 has a key matrix structure in which a DFM frequency is set, and includes a number button and various function buttons for dialing. In addition, there is a button for operating the DTP receiver function.

When the DTP reception function provided in the key input unit 222 is selected in the voice call state, the operation is performed in the reception mode of the numeric message transmitted from the counterpart terminal.

The user requests a numeric message to the counterpart terminal, inputs a numeric message to be transmitted from the counterpart terminal by button selection of a key input unit, and the input signal is converted into a DFM signal and transmitted.

At this time, the signal transmitted from the counterpart terminal is received by the duplexer 200 and the wireless receiver 206, and then the DFM signal is extracted by the DFM signal extractor 208.

The extracted DMP signal is decoded into a numeric message by the DMP decoder 214, and the numeric message is displayed on the display unit 220 by the controller 216.

A method of transmitting and receiving a numeric message during a voice call in the terminal configured as described above will be described with reference to the accompanying drawings.

3 is a flowchart illustrating a numerical message transmission operation using DFM in accordance with the present invention.

Referring to FIG. 3, in a voice call state between a transmitting terminal and a receiving terminal, the transmitting terminal checks whether there is a request for transmitting a numeric message from the receiving terminal (S300).

As a result of the check, if there is a request for transmitting a numeric message from the receiving terminal, in response to the request of the numerical message, the user of the transmitting terminal inputs numerical information using a button of a key input unit during a voice call (S302). Since the unique frequency corresponding to each button is transmitted to the receiving terminal (S304), the receiving terminal can receive the numeric message.

4 is a flowchart illustrating an operation of receiving a numeric message using DFM in accordance with the present invention.

Referring to FIG. 4, when the receiving terminal and the transmitting terminal are in a call, the user of the receiving terminal activates the DMP reception function when receiving a request for receiving a numeric message from the transmitting terminal user (S400). (S402).

The DMP reception function is to receive a number message input by a voice call counterpart by switching to a DTP reception mode by using a shortcut button or a menu button, and is transmitted from a DTP terminal during a voice call. This function makes it possible to receive signals.

That is, when the user presses the shortcut button or menu button, for example, the DMP reception enable button located in the terminal, the user switches from the call mode to the DTP reception mode.

Then, after the receiving terminal user requests a numeric message to the transmitting terminal in the DMP reception mode (S404), the receiving terminal determines whether there is a DFM signal among the signals transmitted from the transmitting terminal. (S406).

As a result of the determination of S406, if the DTF signal exists in the signal, the DTF signal is extracted from the signal and converted into a numeric message (S408), and the converted numeric message is displayed on the display unit and stored in the storage unit. (S410).

Thereafter, if there is no reception of the numeric message, the DTP reception receiving button (key) is pressed again to terminate the DTP reception function (S412).

Subsequently, the voice call is checked, and while the voice call is continuously performed, the user repeats the above steps while displaying the numeric message from the counterpart on the display unit (S414).

As described above, it is possible to transmit / receive numeric messages in real time during a voice call by using a DFM signal in the mobile communication terminal.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary and will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. .

Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

According to the apparatus and method for transmitting and receiving a numeric message during a call in the terminal according to the present invention as described above, the terminal may receive information by using a terminal after receiving a memo or ending a call, but using a short message (SMS). Numeric information can be entered immediately during a call, increasing both convenience and accuracy.

In addition, it is effective in the case of receiving information consisting only of numbers such as a phone number or an account number from the other party in the voice call state between the terminals.

Claims (3)

A key input unit having a button for switching a dual tone multi frequency (DTMF) receiving mode during a voice call by a user; A DFM encoder converting a numeric message input from the user through a key input unit into a DFM signal during a voice call and outputting the DFM signal through a wireless transmitter; A DFM extracting unit for extracting a DTF signal among the signals received from the counterpart terminal through the radio receiver; A DFM decoder converting the DTF signal output from the DMF extractor into a numeric message; A storage unit for storing the numeric message converted by the DTMP decoder; And a controller for displaying the numeric message converted by the DTMP decoder on a display unit. Performing a voice call between a transmitting terminal and a receiving terminal; Requesting transmission of a numeric message to a transmitting terminal by a user of the receiving terminal operating a DTMP receiving function; Receiving, by the transmitting terminal, the numeric message from the user by the request for transmitting the numeric message, converting the numeric message into a DFM signal and transmitting the numeric message to the receiving terminal; And extracting, by the receiving terminal, a DTMP signal from the signal received from the transmitting terminal, converting the DMP signal into a numeric message and informing the user of the numeric message during a terminal call. The method of claim 2, The DMP reception function in the receiving terminal operates simultaneously with the selection of the DTP reception enable button provided on the key input unit, and the DTP reception function is terminated when repeatedly selected. How to send and receive messages.

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