KR20060125061A - Apparatus and method for remote controlling a hand-phone function by using the analysis of dtmf tone - Google Patents

Abstract

A method for remotely controlling a mobile phone by using the analysis of a DTMF(Dual Tone Multi Frequency) tone is provided to allow a user to call user's own mobile phone when the user does not know a position of the mobile phone or loses the mobile phone and remotely control the user's own mobile phone to ring a specific bell sound or an effective sound. When a mobile communication terminal will be lost or wanted to be searched, a user selects a corresponding menu function and sets a personal password(S1). The user presets a specific bell sound, an effective sound, and an operating function including a transmission impossible function and a locking function(S2). A DTMF tone generator of an MSC(Mobile Switching Center) transmits a specific DTMF tone to a phone number of a lost terminal by a terminal loss report, or the user calls the phone number of the lost terminal, recognizes a specific DTMF tone embedded in itself, and inputs the specific DTMF tone(S3). When the specific DTMF tone is inputted, the user remotely controls the lost terminal to ring the specific bell sound or the effective sound or perform the transmission impossible function or the locking function according to the function preset in the lost terminal(S4,S5).

Description

Apparatus and Method for remote controlling a Hand-phone function by using the analysis of DTMF tone}

1 is a view showing the layout of a conventional DTMF touch-tone keypad,

2 is a block diagram of a remote lock and loss display device of a conventional mobile communication terminal,

3 is a flow chart illustrating a method for remote control of a mobile phone function using DTMF tone analysis according to the present invention.

The present invention relates to a method for remote control of a mobile phone function using DTMF tone analysis. More particularly, the present invention provides a method for remotely recognizing specific DTMF tones by calling a mobile phone in case it is lost or lost. The present invention relates to a method of remotely controlling a mobile phone function using DTMF tone analysis that can be remotely controlled by a preset function (ringing a specific ring tone or sound effect, or a lock function or transmission cannot be performed).

In general, dual tone multi frequency (DTMF) is a signal that is generated when a button on a regular telephone is pressed and sent to a telephone company. In the United States and many other countries, this phone, which replaced the dial phone, is called a touchtone phone or an electronic phone. In a telephone with DTMF, each key of the telephone you press produces two notes with a specific frequency. Thus, one voice is a note belonging to a high frequency, and the other is a note belonging to a low frequency, so that the voice cannot mimic the note. The signals generated when the buttons on the touchtone phone are pressed are shown in the following table.

   text    One    2   3   4   5   6   7   8    9    0    *   # Low frequency (Hz)  697  697  697  770  770  770  852  852  852  941  941  941 High frequency (Hz) 1209 1336 1477 1209 1336 1477 1209 1336 1477 1336 1209 1477

Dual Tone Multi Frequency (DTMF) signal refers to a signal in the audible frequency band generated when a MFC (Multi Frequency Compelled) telephone button is pressed. This DTMF signal is a combination of two frequency signals.

The vertical column of the keypad of the telephone generates signals of 1209 Hz, 1336 Hz, and 1477 Hz, and the horizontal column generates signals of 697 Hz, 770 Hz, 852 Hz, and 941 Hz. Is generated, and the receiving side receives the signal and detects which frequency the signal is composed of and recognizes the input button.

In addition, several companies produce microchips for transmitting and receiving DTMF signals. TAPI provides a way for a program to detect DTMF signals. TAPI provides a standard interface for a program that allows users or computers to talk to people (or resources connected to the phone) from anywhere in the world through a telephone or video phone. Say.

Dual Tone Multi Frequency (DTMF) is one of the signaling methods currently delivered to a telephone company to determine a counterpart in a regular telephone. In other words. Every time you press a button on the phone, you hear a beeping and ringing. The human ear sounds the same, but in reality, each button is assigned its own sound according to the frequency of each button. In many countries, including Korea, this type of telephone is replaced by a touch-tone telephone or an electronic telephone.

In a telephone to which DTMF is applied, when a user presses a button, two different frequencies corresponding to each button are generated. This type of telephone does not simply send and receive signals directly to the telephone station by a mechanical device inside the telephone, but uses a method of generating only sound and transmitting it to the telephone station through the telephone line.

Therefore, it can be taken as a signal by human upbringing and external sound. In other words, if you can apply the appropriate sound to the handset, you can call the other party without pressing a button. Therefore, the use of two different specific frequencies is intended to prevent the device from behaving as if it is a normal signal by generating a sound corresponding to each button by noise or artificial manipulation.

In addition, it is set to prevent harmonics between each frequency, thereby eliminating interference by other frequencies.

1 is a view showing a layout of a conventional DTMF touch-tone keypad, the following is a diagram showing the frequency corresponding to each button. Actually, commercial products of mobile phones and landline phones do not use the frequency of 1633Hz.

The implementation of dual tone multi-frequency (DTMF) is largely divided into two phases: synthesis and recognition. The synthesis is to generate two different frequencies corresponding to each button and then combine them into one, as described above. If you press the 9 button on your cell phone or phone, you will hear two sounds: 1477 Hz (high-freq.) And 852 Hz (low-freq.).

If you lose your cell phone, you can find the lost cell phone when you talk to the person you acquired before the battery drained. But most of the time you lose it, you use the phone model number and your unique number. To prevent this problem, access the mobile phone's Lost Cell Phone Management Center's website and check the cell phone information (manufacturer / model, cell phone number, serial number of the lost cell phone), lost information (lost date, lost area), personal information (name). , By entering information such as address, social security number, contact information, e-mail, and password), it was difficult to find a lost cell phone by searching the acquired DB information.

When the mobile communication terminal is lost, if a loss report is made to the service provider, a phone call using the lost terminal can be prevented, but personal information related to the mobile phone user cannot be prevented.

In addition, in order to prevent the loss of the mobile communication terminal, a lock control code for remote locking of the mobile communication terminal and a function for limiting the use of others by setting the user lock function in advance using a key input unit for displaying the lost. You can only receive and limit the calling function of the terminal. However, there is a problem in that the terminal is used by another person when the terminal is lost without setting the lock function due to an unexpected situation.

       Referring to FIG. 2, the remote lock and loss display device of the conventional mobile communication terminal includes a key input unit 10 having various keys, an RF transceiver 40 for wireless transmission and reception, a voice processing unit 50, and an LCD driver ( In the mobile communication terminal having a 60 and the LCD display unit 70, through the lock control code for the remote lock and the loss display data for indicating the loss through the LCD display unit 70 and the voice processing unit 50 It is composed of a memory unit 30 for storing the lost sound data for informing of the loss, and a red or green light emitting diode (LED) and the like is provided in a predetermined portion outside the mobile communication terminal to be predetermined according to a predetermined control signal when the terminal is lost. Loss display unit 80 for displaying a loss at a time interval to indicate a loss, the lock control code (Lock Control Code) received from the user through the RF transceiver 40 and the memory unit 30 Compare the lock control codes (unique serial number, flag values used to check whether they are lost, and values of various calculation results). A control unit 20 for controlling a lock function of the terminal and controlling a loss display control with the LCD display unit 70 and the loss display unit 80 and a lost sound output with a speaker SP connected to the voice processing unit 50; Include.

However, if you lose your cell phone, you can prevent other people from learning and using it, and you can't prevent the leakage of personal information. Alternatively, there was a problem that the remote control could not be prevented and prevented from being used by others through sound effects or locking, transmission, etc.).

The present invention has been proposed to solve the problems of the prior art, and an object of the present invention is to call a user's mobile phone when the mobile phone user does not know where the mobile phone is located or is lost. It is to provide a remote control method of mobile phone function using DTMF tone analysis which can make a specific ring tone or sound effect according to the preset function of the mobile phone through tone recognition or remote control by the lock function or transmission impossibility.

In order to achieve the object of the present invention, the present invention, if you need to lose or find the mobile communication terminal, select the corresponding menu function to set a personal password, the operation function including a specific ringtone, sound effects, transmission impossible, lock function Presetting; And a specific DTMF tone by transmitting a specific DTMF tone from the DTMF tone generator of the mobile communication switch to a lost terminal telephone number or by calling a lost terminal telephone number by recognizing the terminal loss. Inputting; And when the specific DTMF tone is input, remotely controlling the lost terminal by executing a previously stored specific ring tone or sound effect or performing a transmission or locking function according to a preset function of the lost terminal. It provides a mobile phone function remote control method using DTMF tone analysis.

In addition, the present invention automatically displays the information of the lost terminal user including the terminal owner's name, address and emergency contact information so that the acquirer can easily find the terminal owner on the LCD display of the lost terminal after the specific DTMF tone recognition Characterized in that it further comprises the step.

In addition, in the present invention, when a lost terminal is found, when a cell phone is lost, a specific ringtone / effect sound by remote control, a transmission function cannot be released, and when the operation function including a lock function is released, a personal terminal is stored in the corresponding menu. It is characterized in that it further comprises the step of recovering the original state before the loss of the mobile phone by entering the password.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following examples are merely to illustrate the present invention is not limited to the contents of the present invention.

3 is a flowchart illustrating a method of remotely controlling a mobile phone function using DTMF tone analysis according to the present invention.

If you lose or find a cell phone containing several types of mobile communication terminals, select the menu function to set a personal password for remote control in case of loss (step S1), and according to the user's settings specific ring / sound effects, transmission It is impossible to set an operation function including a lock function in advance (step S2).

In addition, if necessary, DTMF decoding of the remote sound signal recorded through the autoresponder to the lost terminal is performed to perform each registered function (specific ringtone / effect sound, transmission impossibility, lock function).

The terminal lost report transmits a specific DTMF tone from the DTMF tone generator of the mobile communication switch to the lost terminal telephone number, or makes a call to the lost terminal telephone number, and has a frequency different from the DTMF frequency of the key input unit. If it is determined that a specific DTMF tone is input to the terminal by recognizing a specific DTMF tone built in (step S3) and determining that a specific DTMF tone is input to the terminal, the terminal may be designated for a predetermined time when it is necessary to find a nearby terminal according to a preset function of the lost terminal. Play a specific ringtone or sound effect, or flash the vibration or lamp (step S4).

After recognizing the specific DTMF tone, if the mobile phone is lost, the mobile terminal can not be used by another person by providing a transmission impossible or locking function to the lost terminal according to the preset function (step S5). The locking function may be remotely controlled so that transmission lock, reception lock, or transmission / reception are locked to prevent unauthorized use of others.

Thereafter, information on the lost terminal user, including the name, address and emergency contact information of the owner of the lost terminal, is stored in memory so that a good acquirer can easily find the owner of the lost terminal on the LCD display of the lost terminal. It is displayed automatically so that it can be found effectively (step S6).

Example 1) If you need to find a cell phone nearby

   -Plays the specified ringtone / effect sound after receiving the corresponding DTMF signal

     (Vibration and lamp flashing also available)

Example 2) Lost your phone

   -After receiving the DTMF signal, it can be received only.

     Prevents other people from using the transmission function

   -You can release it back to its original state by entering your personal password.

In addition, in case of a lost terminal subscribed to a location tracking service such as friend search, the lost terminal's location can be accessed by accessing the lost cell phone management center's website and calling the lost terminal's telephone number. You can identify the lost place.

When the lost terminal is found, when the mobile phone is lost, when the operation function including a specific ringtone / effect sound, a transmission impossibility, and a lock function by the remote control is released, the user enters his personal password in the corresponding menu on his terminal. (Step S7), if it is determined that the preset personal password is restored to the original state before the loss of the terminal to enable the call (step S8).

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below Or it may be modified.

As described above, the mobile phone function remote control method using DTMF tone analysis according to the present invention can prevent other people to learn and use when the phone is lost, can prevent the leakage of personal information, a predetermined function (specific ringtone Or by sounding an effect or not transmitting, locking, etc.), there is an effect applicable to additional remote control.

Claims (5)

If the mobile communication terminal is lost or found, selecting a corresponding menu function to set a personal password and presetting an operation function including a specific ringtone, a sound effect, a transmission impossibility, and a lock function; By sending a lost terminal, a specific DTMF tone is transmitted from the DTMF tone generator of the mobile communication switch to the lost phone number, or a call is made to the lost terminal phone number, and a specific DTMF tone is recognized by recognizing its own built-in DTMF tone. Inputting; And When the specific DTMF tone is input, remotely controlling the lost terminal by ringing a specific ring tone or an effect sound previously stored according to a preset function of the lost terminal, or performing a transmission impossible or locking function; Mobile phone function remote control method using DTMF tone analysis, characterized in that comprises a. The method of claim 1, After recognition of the specific DTMF tone, automatically displaying the information of the lost terminal user including the terminal owner's name, address and emergency contact information so that the acquirer can easily find the terminal owner on the LCD display of the lost terminal. Mobile phone function remote control method using DTMF tone analysis, characterized in that. The method of claim 1, When the lost terminal is found, when the lost function is canceled, the operation function including a specific ringtone / sound effect, transmission impossible, lock function by remote control, lost the terminal so that you can call by entering a personal password in the menu on their mobile phone Mobile phone function remote control method using DTMF tone analysis, characterized in that further comprising the step of restoring to its original state. The method of claim 1, And performing DTMF decoding by receiving a remote sound signal recorded through an automatic response to the lost terminal telephone number, performing a specific ringtone, sound effect, transmission impossibility, and locking function to perform remote control. Mobile phone function remote control method using DTMF tone analysis, characterized in that. The method according to any one of claims 1 to 4, The lock function is a remote control method of the mobile phone function using DTMF tone analysis, characterized in that it comprises a transmission lock or reception lock of the lost terminal or both transmission and reception lock.

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