RU132230U1 - TERMINAL FOR A BIOMETRIC IDENTIFICATION CARD - Google Patents

Abstract

A terminal for biometric identification cards, characterized in that it provides a fixed location of the biometric identification card in its housing so that the optical sensors of the biometric identification card are geometrically aligned and coincide with the light sources or light channels of the terminal, as well as having at least one button with an NFC transceiver microcontroller control and at least one USB connector, through which the reception of encoded data and tanie electronic part of the terminal.

Description

The utility model relates to electronic devices for processing and transmitting information in the form of visible light signals for devices that receive, decode and display it. The proposed utility model can be used as part of authentication systems that work with biometric identification cards (BIC).

The prior art device is a BIC device and a method of transmitting encrypted information developed by Axsionics AG (SN), EP 1255178 B1, EP 1788509 A1.

A biometric identification card (BIC) is a personal mobile device that measures the size of a modern bank card. BIK has a unique 12-digit number, it is equipped with its own display, a fingerprint scanner and stores the model of biometric data of its owner (fingerprints). Modern BIC operates independently of the local computing infrastructure and is a trusted environment. BIC provides protection and reliable storage of biometric data of its owner from their unauthorized use and does not transfer them anywhere. BIC receives information using a set of optical optical sensors directly from the screen of a computer monitor, tablet computer, communicator, smartphone.

To do this, the user at the beginning of the authentication procedure transmits the number of their BIC to the authentication server (CA). The CA returns the generated encrypted information for this particular BIC (password or service information) for further user actions in the authentication system. This information is transmitted in the form of a so-called flicker code (FC). The FC is displayed cyclically by the software on the monitor screen, and is an animation of the display of elements of the FC array in the form of black and white stripes in the area of the monitor screen reserved for animation.

The user applies the NIR to the monitor screen in the display area of the animation code so as to align the area of the optical NIR sensors with the animation area on the screen.

Having received the FC from the computer monitor screen (computer device), the BIC decrypts the FC and displays the decrypted information on its own built-in display only after scanning the fingerprint of the BIK owner. The user (the owner of the BIC) further uses the received decrypted information to confirm his actions in the authentication system, transmitting it to the CA server.

In this technology, the prototype of the proposed utility model is the screen of a computer monitor (computer device).

The author considers manual positioning of the NIR near the monitor screen to the disadvantages of this technology, positioning it so that the NIR optical sensors are placed geometrically correctly relative to the displayed FC.

When using this technology, for example, in remote banking systems, where there is a need for multiple exchanges of encrypted information when a user confirms the conducted transactions to ensure their safety, the ergonomics of such a process decreases sharply, which can lead to an increase in the time for reading encrypted information using NIR. Also, in the case of time limitations on the relevance of information transmitted by the CA (for example, the password is valid for 30 seconds), an increase in the time for reading due to inaccurate manual positioning of the BIC can lead to the fact that the read information will lose its relevance.

In addition, the frame rate of the reproduced animation is critical for the NIR when reading information and has a fixed range of values. In this technology, when the NIR is used with different computer devices, this value cannot be constant, and will always depend on the speed of the computer and its graphics subsystem. The author also considers it irrational to manually enter a 12-digit BIC number when working with authentication systems.

Thus, the author was faced with the task of creating an electronic device, the terminal of a biometric identification card, which allows:

1. to position the NIR sufficiently securely in the terminal housing for the entire period of operation, ensuring the coupling of the fields of the NIR optical transceivers and the terminal, thereby saving the user from manual positioning and holding the NIR at the computer monitor screen (computer device);

2. to provide the necessary access to the functional elements of the NIR in the process, namely the NIR display, the fingerprint scanner, the NIR enable button;

3. to provide non-contact transfer of the BIC number from the card to the terminal using MPC technology (Near Field Communication, “near field communication”), and then from the terminal to a computer (computer device) using the USB communication standard;

4. receive digital FC from a computer (computer device) to the terminal using the USB communication standard and process it;

5. convert the digital FC and output it in the form of light signals using semiconductor light sources, strictly for the period of time necessary to read the encoded information using the NIR;

6. to provide a constant display frequency of the FC array element, giving the NIR the ability to reliably read light signals.

To achieve a technical result, a device is proposed - a terminal for a biometric identification card.

Figure 1 presents the scheme of operation of the NIR without a terminal.

1 - authentication server;

2 - BIC;

3 - FC displayed on the monitor screen (encrypted password or service information);

4 - enter the 12-digit number of the BIC;

Figure 2 presents the modern NIR.

BIC contains the following main functional elements:

1 - graphic display;

2 - fingerprint scanner;

3 - micro USB connector for charging a BIK battery;

4 - BIK power button;

5, 6 - optical sensors BIK;

Figure 3 presents one of the versions of the terminal for NIR.

The terminal contains the following main functional elements:

1 - slot for placing the NIR in the terminal housing;

2 - light channels of light sources;

3 - microcontroller terminal control button;

4 - USB connector.

Photo 3-5 shows a modern BIC and one of the versions of the BIC terminal.

Figure 4 presents a block diagram of the electronic part of the terminal for the NIR.

The electronic part contains the following main functional elements:

1 - microcontroller with hardware support for USB communication standard;

2 - USB port;

3 - block semiconductor light sources;

4 - NFC transceiver.

The terminal case performs 2 main functions:

a) the placement of the electronic part with a block of light sources;

b) the placement of the NIR so that its light sensors are clearly positioned opposite the light sources, as well as free access to the functional elements of the NIR;

The electronic part of the terminal is based on a microcontroller with hardware support for the USB communication standard for receiving FC from a computer (computer device). The microcontroller has at least two I / O ports, with a capacity of at least the value of the number of NIR optical sensors.

The block of light sources is performed on semiconductor white light emitting diodes in an amount corresponding to the number of NIR optical sensors. It connects to one of the microcontroller's I / O ports.

For non-contact reading of a 12-digit NIR number, the electronic circuitry contains an NFC transceiver, also connected to the microcontroller. For BIC, an NFC tag is provided in the form of a sticker, the chip of which stores its 12-digit number. The sticker is attached to the back of the NIR, where the NIR optical sensors are located. NFC technology of short-range wireless high-frequency radio communication enables data exchange between the terminal and the NIR with a RFID tag.

The microcontroller program provides:

a) obtaining the BIC number on the NFC tag of the BIC and its transfer to specialized software (STR) running on a computer (computer device) via a USB interface;

b) receiving the FC from the STR, its conversion and cyclic output to a standard input-output port connected to a block of semiconductor light sources.

The output frequency of the FC array element is set in the microcontroller program using the hardware timer of the microcontroller.

The electronic circuitry of the terminal is powered by the same USB port through which data is transferred.

The terminal microcontroller control button and a USB connector are displayed on the terminal case.

The slot for the NIR in the terminal case is designed strictly in accordance with the dimensions of the NIR, to ensure reliable placement and easy removal of the NIR from the terminal, as well as to provide free access to the functional elements of the NIR. The side walls of the slot perform the function of guides when placing the NIR in the terminal, and their geometric shape allows you to hold the NIR both horizontally and vertically. The lower edge of the slot serves to emphasize the NIR and has a cutout corresponding to the shape of the NIR fingerprint scanner pad for its convenient use.

In Photo 1-2, the moment of work with the terminal and the BIC is recorded. The terminal is as follows. When the terminal is connected to the computer’s USB port, the operating system recognizes it as a HID (human interface device) device, due to the microcontroller used in the terminal with hardware implementation of the USB interface. After that, the terminal is ready for operation and is in standby mode for reading BIK RFID tag data and receiving PC via USB from specialized software (STR) running on a computer. The user places the BIC in the terminal. At the user's request (pressing and holding the microcontroller control button for 2-3 seconds), the NIR number is contactlessly read from the RFID tag and transferred via USB to the STR. BIC stays in the terminal for the entire user’s time. The transfer of FC through STR is also performed at the request of the user. SPO displays FC not on the monitor screen, but on the USB port. The programmed microcontroller of the terminal receives data, processes them and outputs the FC in the form of light signals through semiconductor light sources. By default, the terminal microcontroller program displays the FC in a time-limited cycle, after which it brings the microcontroller to its initial state - the readiness to accept the next FC. Using the control button of the terminal microcontroller, the user can configure the output of light signals in an endless cycle, in a time-limited cycle, or reset the output of light signals, bringing the terminal to its original state for accepting the next FC or re-reading the NIR tag.

The NEC, placed in the terminal, reads the light signals transmitted in the cycle and, upon completion of reading, decrypts the data. The output of the information received on the BIC display is possible only by the fingerprint of the BIK owner. If the owner has successfully identified the BIC, it displays the received and decrypted information on its screen. In the future, the owner of the BIC uses the information received in the authentication system.

Thus, the claimed utility model allows to obtain a technical result, which consists in increasing the reliability of receiving light signals by a biometric identification card, simplifying and facilitating the user’s work with the NIR, placing it stationary in the terminal for the duration of the operation. The claimed utility model meets the condition of patentability "novelty."

Claims (1)

A terminal for biometric identification cards, characterized in that it provides a fixed location of the biometric identification card in its housing so that the optical sensors of the biometric identification card are geometrically aligned and coincide with the light sources or light channels of the terminal, as well as having at least one button with an NFC transceiver microcontroller control and at least one USB connector, through which the reception of encoded data and tanie electronic part of the terminal.

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