KR20020072030A - Method for voice recognition using encryption in mobile communication terminal - Google Patents

Abstract

The present invention relates to a method of applying encryption to automatic billing in electronic commerce or subway through the Internet using a voice recognition function implemented in a conventional mobile communication terminal. The present invention relates to a mobile communication terminal (CDMA, When using AMPS, PCS, IMT-2000) for internet (home) banking, credit card and electronic money payment in shopping malls, automatic billing of subways and highways, voice recognition of the terminal, not the input of the password through keypad By inputting using the function, and comparing the voice input through the microphone and the voice registered in advance by the user, and encrypted, it can be used for e-commerce, etc. with confidence in case of card loss or text password leak.

Description

Method for voice recognition using encryption in mobile communication terminal

The present invention relates to a method for encrypting using a voice recognition function of an existing mobile communication terminal. In particular, a voice password confirmation system is registered in advance by using a microphone connected to a mobile communication terminal. If you connect to the internet banking or securities trading system of a shopping mall or financial institution that you have adopted, and make a payment or transfer of funds, you can check the voice that you registered beforehand and the voice that is input through the microphone. Even when a password is leaked, it can be used with confidence in e-commerce.

In general, the demand for mobile communication terminals is exploding due to the convenience of being portable and usable on the go. In recent years, a mobile communication terminal manufacturer has added various functions to a mobile communication terminal so that the user can use it more conveniently. One of the additional functions is voice recognition (voice recognition) in a conversation between a human and a machine. The process of converting it to the code that it listens to. This is a function to replace a dial by inputting a predetermined voice signal instead of dialing by pressing a button directly. For example, a user designates a specific phone number and stores a voice signal of 'my home'. Next, when a voice signal of 'my house' is input through a microphone of the mobile communication terminal, the microphone dials a phone number corresponding to the input voice signal. This can be useful if the user needs to make a phone call while driving a car.

On the other hand, the algorithm for the speech recognition function is largely composed of three parts. First, extracting a gain for detecting an end point from an encoded voice packet, and second, detecting a feature parameter of the encoded voice packet. Linear Prediction Coding (LPC) to extract the coefficients by modeling the human vocal tract as an auto-regressive (AR) signal for reduction of speech data, synthesis recognition, etc. And finally, comparing the characteristic parameters of the encoded speech packet with a standard pattern stored in the memory to extract the same speech signal.

However, Qualcomm's Mobile Station Modem (MSM Chip) does not provide speech recognition. Therefore, in order to implement the voice algorithm, the mobile terminal manufacturer must add additional software to the user interface area.

1 is a block diagram illustrating an internal circuit configuration of a mobile communication terminal having a card reader encrypted by a voice recognition function according to the related art.

As shown here, the mobile communication terminal 100 having a voice recognition function,

An RF unit 110 for processing a radio frequency (RF) signal transmitted and received between a base station and a subscriber matching device, and a central processing unit (CPU) for controlling a circuit in the terminal 100 are built in the RF unit 110. Mobile station modem (MSM) 120 which performs transmission rate conversion and digital / analog conversion functions for each line, and controls and controls the functions of internet banking and financial services as well as telephone functions. The microphone 130 converts an input voice signal into an electrical signal, and converts an analog signal input from the microphone 130 into a digital signal and provides the digital signal to the mobile station modem 120, and outputs from the mobile station modem 120. A codec 150 for converting a digital / analog signal into an analog / digital signal and outputting the same to the speaker 140, and storing a plurality of telephone numbers or additionally transmitting a recent telephone number. Memory unit 160 for storing information, processing data encryption and basic data through an address and a data line, and a power supply unit for supplying necessary power to the entire terminal including the mobile station modem 120 to operate normally. A keypad unit 180 generating a key code for performing various functions of the terminal 100, including an input pad (0 to 9, *, #) designating a number of another terminal, and A liquid crystal display (LCD) 190 for displaying data values (alphanumeric characters, Korean characters, etc.) output from the keypad unit 180, additional functions of the terminal 100, and the like, and a voice signal input from the microphone 130 may be used. Perform a voice recognition function to determine whether the voice password data for controlling the mobile communication terminal 100, and if the input voice signal is data for controlling the terminal 100, the sound The voice recognition encryption unit 200 which outputs an information signal corresponding to the signal data, and receives data only, and when the data by automatic charging or the like is input, reads the read data to the mobile station modem 120. Recognizes the card recognition unit 310 to output and the data output from the card recognition unit 310, and stores the data in the memory unit 160, the data to the liquid crystal display 190 when a request from the user And a card reader 300 including a data modulator 320 and a card recognition unit 310 and a data modulator 320.

2 is a flowchart illustrating a conventional card payment process.

As shown in the figure, a user having a mobile communication terminal accesses a shopping mall using an internet function implemented in the terminal, selects a desired product, and then selects cash payment or card payment (S1, S2).

If you choose to pay by credit card, enter your credit card number and worry about leaking your password, and only enter the card expiration date.

On the other hand, all payment systems currently operating in shopping malls are connected to the Korea Information and Communications (KICC) system at the time of card payment to determine the abnormality of the card and check whether the card is reported as lost (S6).

If the card is not reported lost and there is no abnormality in the card validity period, the Korea Information and Communications System notifies you that there is nothing wrong with the card. (S7, S8).

As mentioned above, electronic commerce through the medium of the Internet refers to the act of buying and selling goods through electronic media such as computers and networks, unlike people and people who buy and sell goods through the delivery of physical media. By doing so, it has a big advantage in that it is possible to purchase goods without visiting the store. Looking at a typical e-commerce process, a consumer first accesses an e-commerce service provider's website from a computer, such as a computer, connected to the Internet. The website displays a list of various products and detailed specifications of each product, and when a consumer searches for a product displayed on the website and finds a product to purchase, the customer places a purchase order and uses an electronic payment method such as a credit card. Pay your bill. The e-commerce provider confirms the payment and delivers the product to the consumer.

However, as described above, the conventional electronic commerce method has a weak point in terms of security since a product purchase act occurs in a state where a person does not face each other due to the characteristics of the electronic commerce. Therefore, if the password being used for member authentication during electronic commerce is stolen, it causes a problem of serious damage to the user.

In addition, in the conventional credit card payment method, when a user loses a credit card, and a user does not report the loss, another person can purchase any number of items at the shopping mall using the lost card, and the damage caused by this rapidly increases. Since the encryption used for a credit card or the like simply uses a sequence of numbers, there is a problem that it can be easily exposed and leaked by others.

Accordingly, the present invention is proposed to solve the above problems of the prior art,

An object of the present invention is to select a desired product by registering a user's voice password in the voice password system in advance, and connecting to the Internet site of a shopping mall or a bank or a securities company that has signed a technical cooperation. By using voice recognition technology that checks the user's voice password once more when the card is settled, e-commerce is secured even when the card is lost or the password is leaked at the internet banking and e-commerce site of the shopping mall or financial institution that adopts the voice password verification system. The present invention provides an encryption method using voice recognition in one mobile communication terminal.

The present invention for achieving the above object,

If a voice signal is applied from the user in the initialization mode after the terminal is powered on, comparing the applied voice signal with a voice password registered in advance by the user;

If the voice signal inputted as a result of the comparison matches a pre-registered voice password, authenticating the user and entering a terminal add-on selection mode (Internet banking, e-commerce, automatic billing service, general telephone, etc.);

If the Internet banking and e-commerce mode is selected among the modes, accessing a shopping mall or an internet banking system for electronic commerce through the Internet,

Checking whether to select a payment method (card payment, electronic money payment) for the selected product when the user selects the product and purchases the product in the shopping mall when connected to the shopping mall;

When the card payment is completed, the card number is entered, the card expiration date is entered, and the general card payment approval process that determines whether there is a card abnormality in Korea Information and Communication (KICC). Comparing the registered voice password and performing a card payment if there is a match;

Checking the user's voice password required for user authentication at the time of electronic money payment and checking the user's identity, and if the voice password is registered with the user in advance, approving the electronic payment;

When accessing the Internet banking mode, checking a voice password for use of money management (database management) such as electronic money in a card recognition unit through a function such as SMS (Short Messaging Services) of the terminal;

As a result of the verification, if the user is authenticated, the user checks the remaining amount of the electronic money, and if the remaining amount of the electronic money is insufficient, the amount that can be used by the card recognition unit through the home (internet) banking through the internet and the data tampering unit. Charging the;

When the automatic billing service mode is selected, when a data signal input (payment request in subway and highway fare settlement) is detected by the card recognition unit of the terminal, requesting a password from the user to confirm the user's voice password;

Paying the requested price when the user authentication is confirmed, checking whether the user manages the database, and charging the electronic money according to the user's request when requested;

When the general telephone mode is selected, the method is configured to check whether a key is on for a call, enter a call mode, and proceed to an initial stage when a user's call is completed. It features.

1 is a block diagram showing the internal circuit configuration of a mobile communication terminal having a magnetic card encrypted by speech recognition according to the prior art,

2 is a flowchart illustrating a card payment process in a mobile communication terminal according to the prior art,

3 is a flowchart illustrating an encryption method using a voice recognition function in a mobile communication terminal according to the present invention.

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

100 ..... Mobile terminal

110 ..... RF section 120 ..... Mobile station modem (MSM)

130 ..... Microphone 140 ..... Speaker

150 ..... Codec 160 ..... Memory section

170 ..... Power supply unit 180 ..... Keypad unit

190 ..... LCD 200 ..... Voice recognition encryption unit

300 ..... Card Reader

310 ..... card recognition unit 320 ..... data modulation unit

Hereinafter, a preferred embodiment of an encryption method using voice recognition in a mobile communication terminal according to the above technical concept will be described in detail with reference to the accompanying drawings.

3 is a flowchart illustrating an encryption method using a voice recognition function in a mobile communication terminal according to the present invention.

The basic structure of the present invention is to reinforce an encryption algorithm by using a voice recognition function in an existing mobile communication terminal. In particular, a voice password of a user is registered in advance by using a microphone connected to the mobile communication terminal. When you make a payment or transfer a card by connecting to an internet banking or securities trading system of a shopping mall or financial institution that adopts a verification system, check the voice that is registered through your own voice and a microphone to confirm your identity. It is designed to be used for e-commerce with confidence even when lost or leaked text password.

As shown in FIG. 3, when a voice signal is applied from the user in the initialization mode after the terminal is turned on (ST11-ST13), the input voice signal matches the voice password registered in advance by the user. Are compared (ST14).

As a result of the comparison, if the input voice signal and the pre-registered voice password match, the user selects a function to be used among various additional functions (Internet banking, e-commerce, automatic billing service, general telephone, etc.) (ST15).

If the Internet banking and e-commerce mode is selected among the above modes,

Access to the e-commerce operating server through the Internet to provide the pages of the website (shopping mall) to the user, through which the user is connected to the Internet to the shopping mall or Internet banking system for e-commerce (ST16, ST17, ST27) ).

When accessing the shopping mall, when a user selects a desired product in the shopping mall and purchases it, selects a payment method (card payment, electronic money payment) for the selected product (ST18, ST19), and enters a card number when paying for the card. After entering the card expiration date and completing the normal card payment approval process to determine whether there is a card error in KICC, if there is no problem with the card, the input voice signal for password verification and the pre-registered voice password are compared. If there is no error, card payment is performed (ST20-ST22).

Next, even when payment is made in electronic money instead of card payment in step ST19, the user voice password required for user authentication is checked and the user is verified, and if the voice password registered in advance is matched with the user, the electronic payment is approved. (ST23-ST26).

Next, when connected to the Internet banking (ST27) mode in the above, through the function such as SMS (Short Messaging Services) of the terminal, the card recognition unit can use the voice password for money management (database management) that can be used, such as electronic money When the verification is performed, the remaining amount of the user's electronic money is checked.If the remaining amount of the electronic money is insufficient, the user can receive the Internet (home) banking via the Internet and use the amount that can be used by the card recognition unit through the data tampering unit. Recharge and use again (ST27-ST32).

On the other hand, when the automatic charging service mode is selected in step ST15,

When a data signal input (payment request in subway and highway fare settlement) is detected by the card recognition unit of the terminal, the user is asked for a password to confirm the user's voice password (ST33-ST36), and when the user's authentication is confirmed, the requested Pay the price (ST37). After the payment is made, the user checks whether the user manages the database and, upon request, charges the electronic money according to the user's request (ST38 and ST39).

In this case, when data is input by the automatic charging in the card recognition unit, it is recognized by the data modulation unit and stored in the terminal memory unit, so that the user can check the liquid crystal display (LCD) by key operation or the like when desired.

In addition, when the normal telephone mode is selected in step ST15,

After checking whether the key is on for the call, the user enters the call mode and proceeds to step ST15 when the user's call is completed.

In the above, the configuration and operation of the circuit according to the present invention are shown in accordance with the above description and drawings, but this is merely described, for example, and various changes and modifications are possible without departing from the spirit of the present invention. . That is, simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be seen to be included in the scope of the present invention.

According to the above-described "encryption method using voice recognition in the mobile communication terminal", the user's voice password is registered in advance through a microphone connected to the mobile communication terminal, When you make a payment or transfer funds through internet banking, etc., you can check the voice registered by the user to confirm your identity and the voice input through the microphone. It has an advantage that can be utilized.

In addition, the present invention can solve the most important encryption problem when using the e-commerce in the existing mobile communication terminal, because it is easy to use, easy to use, and forgery and theft is impossible compared to password by number (password) Secure secret protection has the advantage of being possible.

In addition, by applying an encryption method using a voice recognition function to a mobile communication terminal, various fields such as prohibiting the use of the terminal transmission by others, internet banking, payment of credit cards and electronic money at shopping malls, automatic payment of subways and highways, etc. Has the advantage to take advantage of.

Claims (5)

In a mobile communication terminal having a voice recognition function, A first step of comparing the applied voice signal with a voice password registered in advance by the user when a voice signal is applied from the user in an initialization mode after the terminal is powered on; A second process of authenticating the user if the input voice signal and the pre-registered voice password match with each other, and proceeding to a terminal add-on selection mode (Internet banking, e-commerce, automatic billing service, general telephone, etc.); ; And a third step of restricting the use of the terminal by moving to the initialization mode when the input voice signal and the pre-registered voice password do not match as a result of the comparison. . The method of claim 1, wherein the internet banking and the e-commerce mode are selected in the second process, Accessing a shopping mall or an internet banking system for electronic commerce through the Internet; Checking whether to select a payment method (card payment or electronic money payment) for the selected product when the user selects the product and purchases the product in the shopping mall when connected to the shopping mall; When the card payment is completed, the card number is entered, the card expiration date is entered, and the general card payment approval process that determines whether there is a card abnormality in Korea Information and Communication (KICC). Comparing registered voice passwords and performing card payment if they match; In the mobile communication terminal comprising the step of checking the user's voice password required for user authentication during electronic money payment, and checking the identity, if the voice password registered with the user matches the electronic password, the electronic payment is approved. Encryption method using speech recognition. The method of claim 2, wherein when connected to the Internet banking mode, Confirming a voice password for use of money management (database management) such as electronic money in the card recognition unit through a function such as SMS (Short Messaging Services) of the terminal; As a result of the verification, if the user is authenticated, the user checks the remaining amount of the electronic money, and if the remaining amount of the electronic money is insufficient, the amount that can be used by the card recognition unit through the home (internet) banking through the internet and the data tampering unit. An encryption method using voice recognition in a mobile communication terminal, characterized by comprising the step of charging. The method of claim 1, wherein when the automatic charging service mode is selected in the second process, Checking a voice password of the user by requesting a password from the user when a data signal input (payment request in subway and highway fare settlement) is detected by the card recognition unit of the terminal; When the user authentication is confirmed, the requested price is paid, and whether or not the user's database management, and if the request comprises a step of charging the electronic money according to the user request voice recognition in the mobile communication terminal Encryption method used. The method of claim 1, wherein when the general telephone mode is selected in the second process, Checking whether the key is on for the call, and entering the call mode if the key is on, and proceeding to the initial stage when the user's call is completed. Encryption method used.