KR20040069027A - Transmission and reception of security message to mobile phone - Google Patents

Abstract

PURPOSE: A method for transmitting and receiving a security message to and from a mobile phone is provided to allow a receiver to unlock a lock function and read a message which has been received with the lock function set by a mail sender. CONSTITUTION: A text message is received by a mobile terminal of a receiver(210). If a lock function has been set for the text message(220), a content requesting inputting of a password is displayed on a display unit(230). The receiver inputs a password, and if the password is identical to a password set for the mobile terminal of the receiver(240), the set lock function is released(250) and the text message is displayed on the display unit(260).

Description

Method for transmitting and receiving security message delivered to mobile phone {Transmission and reception of security message to mobile phone}

The present invention relates to a security message transmission method and a reception method transmitted through a mobile phone, and more particularly, when a sender sends a message by setting a lock function to a specific receiver in a mobile phone or a PC, the receiver unlocks it. It relates to how to unlock by entering a value.

Short Message Service (SMS) is a service that enables message communication between mobile phones, mobile communication terminals, and includes GSM (Grobal System for Mobile communication), CDMA (Code Division Multiple Access), PCS (Personal Communication System), etc. Service that enables message communication between mobile phone terminals.

In addition, the text service is a service capable of transmitting a message from the PC (personal computer) to the mobile phone.

Mobile phone terminals currently in use are designed to set a lock code to restrict the use of mobile phones. Such a lock code is generally set so that a producer or a user can set and register arbitrarily. In general, the lock code is stored in a nonvolatile memory area in which data contents are not lost when power is cut off. In order to use the mobile phone registered with the lock code set as described above, it is possible to release the lock state by inputting the same number or letter as the lock code stored in the memory area.

Thus, in order to prevent the user from exposing the message, the user must keep the mobile phone locked. In that case, it is inconvenient to release the locked state every time the message is checked regardless of the importance.

Due to these problems, most users reduce their privacy exposure and do not use it.

In addition, another existing security method of transmitting and receiving an encrypted message requires the sender to input an encryption key value using a keypad provided in the mobile terminal when the sender sends a message, and the receiver also sends the same key value for each sender or sender. I have a hassle to know every time.

The present invention was devised to solve the above problems, and an object of the present invention is to select whether to give a lock function when a sender sends a message in a mobile phone or a PC, and the receiver can receive the message. When the lock function is given to the message can be confirmed by entering the unlock password, to provide a secure message transmission and reception method that does not need to set a separate lock of the mobile terminal.

The configuration of the present invention for achieving the above object, in a method for transmitting a text message using a mobile phone terminal or a PC (PC), input a text to send a text message, and whether or not to lock the message; The first course of asking; The message that does not require security transmits the input message as it is, and the message that requires security is configured as a second process of transmitting a message by setting a lock.

Preferably, the first process is characterized in that the step of locking the sender is configured to be located in the previous step of the step of inputting text to send a text message.

In addition, when the locked text message is received, inputting an unlock password; Only when the input password value matches the password value stored in the receiver's mobile phone, the lock setting is released, and the text message is displayed.

1 is a schematic configuration diagram of a mobile phone to which the present invention is applied;

2 is a flowchart illustrating a security message transmission method delivered to a mobile phone according to the present invention;

3 is a flowchart illustrating a security message receiving method delivered to a mobile phone according to the present invention.

Hereinafter, a security message transmission method and a reception method according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a cellular phone to which the present invention is applied, and the schematic operation of the cellular phone will now be described with reference to FIG. 1.

The control unit 40 transmits the text message inputted by the sender when the lock function is set, including key data set as the lock function, and transmits the text message to which the lock function is set in the mobile terminal display unit 20 in which the text message is received. It informs the arrival, and controls the user password check and the received text message to be displayed on the display unit 20 so that it can be read. (The user password matches the password stored in the receiver's mobile terminal.)

The key input unit 10 includes a plurality of key input buttons, and generates corresponding key data when the user presses a key and transmits the corresponding key data to the control unit 40.

The display unit 20 is a liquid crystal display (LCD) for displaying a variety of information, which is controlled by the control unit 40, the key data generated by the key input unit 10 and various information signals from the control unit 40 Enter and display.

The memory unit 30 stores a program required by the controller 40, and stores data input and output by the controller 40 and the text message data transmitted from the text message center.

The duplexer 70 connects an antenna and a transmission / reception means to separate a transmission signal and a reception signal.

That is, during transmission, the output power of the transmitter 50 passes through the duplexer 70 to transfer the maximum power to the antenna ANT, and upon reception, the weak RF signal received through the antenna ANT is reversed. Passes through the duplexer 70 and transmits a signal to the receiver 60.

The audio unit 80 is controlled by the control unit 40, modulates the voice signal input to the microphone (MIC) into a wireless signal, and through the process of demodulating the wireless signal received through the receiver 60 through the speaker ( SP) to transmit the audio signal. In addition, the audio unit 80 detects the ring signal through the receiver 60 when the ring signal is generated from the base station and transmits the ring signal through the ringer.

Here, the demodulation loads a modulated wave changed according to a signal such as an image or a voice on a high frequency (carrier) as a fundamental wave and transmits the modulated wave from the high frequency current. The operation of restoring signals.

2 is a flowchart illustrating a security message transmission method delivered to a mobile phone according to the present invention. Hereinafter, a security message transmission method will be described with reference to FIG. 2.

When the sender inputs a text message using the key input button of the mobile phone or PC (step 110), and presses the send button, the sender sets the lock function and sends the text message or the normal work only. Ask from the menu (step 120).

If the sender inputs that the lock function is not set, the message is transmitted in the form of a normal text message (step 140). If the sender inputs that the lock function is set, the lock function is set in the text message (step 130). Send a text message.

3 is a flowchart illustrating a security message receiving method delivered to a mobile phone according to the present invention. Hereinafter, a security message receiving method will be described with reference to FIG. 3.

When the message is received at the receiver's mobile terminal (step 210), the text message without the lock function is displayed to be read on the display unit 20, and the text message with the lock function is moved to the next step (step 220). ).

If the display unit 20 displays a request for inputting a password (step 230), enter the password, and if the password matches the password set in the receiver's mobile terminal, the process proceeds to the next step. After the display shows that the passwords do not match, the display proceeds to the step before the password input (step 240).

If the password matches, the lock is released (step 250), and a message is displayed on the display unit (step 260).

When the receiver checks the contents of the message and ends the message, the message is stored again with the lock function set, and the password input procedure must be performed even when rechecking the message.

As described above, the security message transmission method and reception method delivered to the mobile phone according to the present invention, the sender from the mobile phone or PC (PC) can select whether to give a lock function when sending a message to the mobile phone of the receiver, When the receiver receives the message, the unlocked password can be checked for the message that has been given the lock function. Therefore, the receiver does not need to lock the mobile terminal to prevent the exposure of the message that requires security. Even if you set a lock on the terminal separately, there is no hassle of having to unlock it every time you see a message that does not require security.

Claims (3)

In the method of transmitting a text message using a mobile phone or a PC, Inputting text to send a text message and asking whether to lock the message; Security message transmission method and receiving method that is transmitted to a mobile phone, characterized in that the message that does not require security transmits the input message as it is, and the message that requires security is configured to transmit the message by setting a lock. The method of claim 1, wherein the first process comprises: The security message transmission method and reception method is delivered to a mobile phone, characterized in that the step of setting the lock, the transmitter is located in the previous step of the step of inputting the text to send a text message. In the method for receiving a text message using a mobile terminal, When the locked text message is received, inputting an unlock password; And a method of releasing the lock setting and displaying the text message so as to read the text message only when the input password value matches the password value stored in the mobile phone of the receiver. Receive method.