RU2603837C2 - Method of making electronic card (electronic key) - Google Patents

Abstract

FIELD: network technology.

SUBSTANCE: invention relates to network technologies, specifically to methods of authenticating network operations. Achieved by that, on two dielectric plates or flexible dielectric bases according to circuit diagram, mirror displayed rectangles are drawn, determining location of capacitor plates, which are coated with conductive paint, and current-conducting connections thereto are drawn. After drying of paint, an insulating layer of dielectric adhesive paint is applied, then on one of plates in paint-coated rectangles, standard planar inductors are applied, which are two flexible electrically connected drawn planar inductors coated on two sides with current-conducting paint, after which structure is aligned relative to mirror side of second plate, which are pressed until adhesive paint dries to obtain a solid or flexible cards.

EFFECT: technical result is reduction of power consumption of system, broader applications, higher reliability of unauthorised use.

1 cl, 5 dwg

Description

The electronic key functionally functions as electronic cards for various purposes, therefore it provides control and reliability of operations, for example, with virtual money, securities and other carriers of confidential information.

A known method of manufacturing plastic cards, which consists in applying basic graphic information, forming a bag of plastic sheets and then thermopressing the formed bag (patent WO 98/54002, 03/03/98 - analogue and prototype).

However, the known method does not provide prompt confirmation of their authenticity without the involvement of special equipment.

The basis for the start of production and preparation of plastic cards is the receipt of an application for their manufacture and personalization from the customer. To collect and generate information about each user on a physical medium, a questionnaire form is used, a specially designed structure of which contains a number, including a barcode, a place for a photograph and / or signature, corresponding columns and fields for filling, providing information filling with data for inclusion in the database and further into the plastic card. Moreover, the data displays information related to the identification of the holder of the plastic card, scope of use and expiration date.

As a rule, a microprocessor card contains a case in the form of a rectangular rectangular card made of plastic material, and an electronic module installed in the case, the module contains a processor connected to storage devices, as well as electrical contacts reaching the surface level of the card body.

Such a card is used, in particular, in applications requiring a high level of protection, for example, such as a payment bank card. This card can also be used as an identification mark, ticket, etc., which also require a high degree of protection.

Various information is printed on each side of the card, which usually contains a hologram, card number, and other elements. On the other hand, the data stored in the memory of the electronic module is protected by various digital coding technologies.

A known method of falsification is the use of a stolen module by attaching it to a used but authentic card, which allows you to get a falsified bank card that looks like a normal bank card.

A counterfeiter may present a card for payment to a seller who is unable to determine that the electronic module installed on the card body is a pirated module.

In this case, the fraudster can make payments without fear of sellers to whom he presents or transfers a card to make these payments.

Another type of fraud is the use of an authentic module with a falsified card body. In this case, the name of the fraudster will be indicated on the card body, but in fact, its microcircuit belongs to the bank card of another person, which allows the fraudster to make purchases and pay for them from the card of this other person.

A known identification system comprising a stationary part including an inductive sensor and serially connected sine wave generator, a detector, an amplifier, a low-pass filter, a comparator and a controller, and a portable part including a parallel oscillatory circuit, the inductor of which is configured to interact with the inductive sensor in this case, the parallel oscillatory circuit is connected through the power supply to the code generator, the output of which is connected to the control input of the key , and the information inputs are connected to a storage unit connected to a power supply.

However, due to the presence of a part of two resonant devices, namely, a generator and an inductive sensor, mismatches of their resonant frequencies may occur, which reduces the voltage in the inductive sensor, and in the portable part due to the timing of the code generator by the signal of the parallel oscillatory circuit, the depth of the amplitude modulation of the signal is limited Inductors of a parallel oscillatory circuit. Both of these factors reduce the interaction zone between the inductive sensor and the inductor and limit the scope of the system. In addition, the inductive sensor is constantly energized, which increases the energy consumption of the system.

The purpose of the invention is the elimination of these drawbacks, that is, reducing the power consumption of the system, expanding the scope and increasing the reliability of unauthorized use.

For this, in an identification system containing a stationary part (electronic key), which includes only the proposed electrical circuit, and a portable part, which includes a sinusoidal oscillation generator, a detector, an amplifier, a low-pass filter, a comparator, a controller, and other devices that ensure the functioning of the system , only an electronic key with a power supply source, which is located in the portable part, is offered.

Figure 1 shows the wiring diagram of the key containing N input supply planar inductances, for example 31, 33, 38, 17, 21. All inductances shown in the figures have a planar shape in the form of an Archimedes spiral. The loads for inductors 31, 33, 38 are, respectively, inductances 32, 34, 39, for inductance 17, a series oscillatory circuit consisting of a capacitor formed by plates 29 and an inductance 18, and for inductance 21, a parallel oscillatory circuit formed by a capacitor with plates 27 and inductance 22. Inductance 34 through capacitor plates 37, inductance 39 through capacitor plates 16 are respectively electrically connected to inductors 35, 40, 12, 14, which in turn are connected to the inductance aws 36, 11, 13, 15, and the inductance 30, the capacitor plates 28, the inductance 26, the capacitor plates 25 are electrically connected to the inductors 19, 20, 23, 24. All circuit elements are located between the dielectric plates 41 (see figure 2) and filled with a hardening dielectric fluid. The whole design is an electronic card.

Figure 3 shows the power source of the electronic card. It contains the inductance 7 and the planar coils 3, 4, 5, 6 magnetically connected to it. When a voltage is applied to the inductance 7, for example, at a frequency of 50 hertz, a high-frequency voltage appears on the planar coils 3, 4, 5, 6 according to the diagram shown in FIG. .4, while the coils 3, 4 and 5, 6 should have the opposite winding. The sequence of pulses, their number can be changed by changing the order of series-connected pairs of planar coils. The pulse width is determined by the distance between the even and odd planar coils, and the repetition rate is determined by the distance between the odd coils. Thus, changing arbitrarily the parameters of the coils, for example, such as the number of turns in the coils, the direction of winding, the length of the winding wire, we can obtain at the output any predetermined desired impulse response of the output voltage. Thus, inserting the planar coils 31, 33, 38, 17, 21 of the electronic card between the capacitor plates 1, 2, we obtain a unique diagram at the output of the card that corresponds to only one card. This diagram is likewise transferred to the system for encryption and further processing, for example, by generating a file for matching the output characteristic of the card with the personal data of the card holder by issuing a number, for example, a bank account.

A method of manufacturing electronic cards, which consists in the fact that on two dielectric plates or flexible dielectric bases, according to the wiring diagram, they draw mirror rectangles defining the locations of the capacitor plates, which are coated with conductive paint, and draw conductive bonds to them, after the paint dries, an insulation layer is applied dielectric adhesive paint, after which standard planar inductance is applied to one of the plates in the coated rectangles and representing two flexible insulated electrically connected with both sides of a conductive paint painted planar inductor structure then combine relatively mirror side of said second plate which is pressed against the adhesive to dry to form a solid paint or a flexible card.

Using this method, you can get a multilayer structure of any size with an arbitrarily large number of L-C elements. Standard planar inductance is a two planar flexible electrically coupled insulated inductance on both sides. One standard inductance differs from another by the number of turns in the inductances, the direction of the winding, the diameter of the wires, the length of the winding wire. The slightest deviation of any parameter of any element of the card leads to a change in the output initial characteristic, leading to a failure in its operation, which excludes its fake. The output characteristic necessary for identification when using the card is removed from the finished card.

For the convenience of use and the unambiguous location of the output elements of the power source with the input elements of the card, the output elements of the card with the input elements, for example, a terminal or a telephone, Fig. 5 shows a key comprising a housing, contact plates 10, a handle 9. Housing 8 with contact plates 10 are formed by twisting a flexible card and then filling it in a mold, for example, with a compound having a high dielectric constant.

The operation of the card (key) is that if necessary, for example, a monetary transaction is made by the owner of the key, it inserts it into a phone, laptop, terminal, etc. Your information is searched and identified, and on the display, provided the card is authentic, a photo of the card holder appears with his phone number, necessary in case of loss of the card. After that, the system offers to indicate the input password (pin code). When you enter the password, a menu appears on the display, for example, wallet, e-mail and other confidential information. If the system is allowed to deduct the amount of not more than, for example, 500 rubles. per day, then the password for the wallet can be excluded. After entering the password, the wallet designation with the personal account number, a minus sign appears on the display, then the withdrawn amount and the recipient's account number are written. The operation is completed, can occur anywhere in the world.

At the request of the police to present a driver’s license or passport, the key is inserted into the phone, a well-known password is dialed, for example 02, and only non-confidential personal information appears on the display.

The key can be a public means of individual one-time or multiple viewing without copying, for example, new films, concerts, etc.

When switching to virtual money in the future, the possibility of eliminating corruption is created, because the budget of any person will become state-controlled.

Claims (2)

1. A method of manufacturing electronic cards, which consists in the fact that on two dielectric plates or flexible dielectric bases, according to the wiring diagram, they draw mirror rectangles defining the locations of the capacitor plates, which are coated with conductive paint, and draw conductive bonds to them, after drying, the paint is applied an insulating layer of dielectric adhesive paint, after which planar inductances are applied to one of the plates in the rectangles coated with paint, after which the design is combined relative to the mirror side with the second plate, which is pressed until the adhesive paint dries to obtain a solid or flexible card, while the planar inductors located between the capacitor plates are a pair of planar flexible electrically connected and insulated on both sides inductances in the form of Archimedes spirals , one planar inductance placed between the capacitor plates differs from the other in the number of turns in the inductors of the pair, in the direction winding, wire diameter, length of winding wire. 2. The method according to p. 1, characterized in that the obtained flexible card is twisted with the simultaneous molding of contact surfaces, after which it is molded using casting in a mold.

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