UA106188C2 - Method for digital data inductive transmission - Google Patents

Abstract

The invention relates to electronic communications, in particular to data transmission by inductive method transmitting, digital data contactless transmission digital data from digital data contactless transmission device to receiver, e.g. magnetic stripe card readout device. A method for digital data inductive transmission consists in that normalized radiant power is controlled under conditions of polarity change by quick switching polarity of supply voltage applied to emitter inductance with simultaneous current amplification in the radiator inductance providing the polarization of magnetic radiator head signal in the radiator inductance at parallel position of axes of emitting and detecting inductances. While transmitting data from the computing system as computer, mobile telephone, smartphone, tablet computer and other electronic devices, axis of radiator inductance is arranged in parallel to magnetic stripe card receiver slot at distance up to 15 cm.

Description

The invention relates to the field of electronic communication based on inductive data transmission, for example, contactless transmission of digital data from a contactless digital data transmission device to a receiving device, for example, a magnetic stripe card reader.

Terminology (determinations).

The following designations (determinations) are used below in the description.

M5T (eng. - tadpeiiys zesypu ihapzasiyp) - secure magnetic transactions.

KMS - a card with a magnetic stripe. Produced in accordance with the IZOLES 7810 standard,

ISOLES 7811, IOLES 7812, ISOLES 7813, IBO 8583 and IBOLES 4909.

A payment card is a card with a magnetic stripe intended for use in payment systems.

Issue of bank cards - activities related to the issuance of bank cards, opening of accounts and settlement and cash service for customers when carrying out operations using the bank cards issued to them.

Emulation - the process of emulation, which consists in imitating the behavior and features of the emulated object.

The reader head or magnetic stripe reader (MRI) is a magnetic head.

Transfer - a mathematical/geometric operation of moving objects along a coordinate grid without changing their orientation in space.

Polarization is a criterion that characterizes the dependence of the alignment of the axes of the inductance winding of the emitter and the magnetic strip reader (the angle between the axes when they are parallel transferred) on the maximum distance of stable signal reading between them.

Secure data storage data storage that prevents unauthorized access to them.

A secure tool (English zesigpiu - security) is a tool developed taking into account the requirements of secure data storage and transmission.

Contactless data transmission - the transmission of information over a distance between two or more devices, with the help of which data transmission is carried out, which does not require contact directly between these devices (for example, between the inductive coil of the emitter, which

Zo transmits the signal, and the head of the reader, which is in the device for reading magnetic cards).

The driver is a structural element or module designed to match the control signal (from any source capable of commanding the driver) and the payload, in particular, the inductive coil of the emitter.

An inductor is an inductive coil of an emitter that transmits a signal.

The 172th method (English - doshrie yeediepsu) is a digital signal modulation method described in the IBOLES 7811 standard.

Quality is a parameter of an oscillating system that determines the width of the resonance and characterizes how many times the reserves of the sum of dynamic and accumulated energy in the system are greater than the energy loss in one period of oscillations.

Magnetic wire - a part or a set of parts designed for the passage of a magnetic flux with certain losses.

The middle point of consumption is the common wire (ground, neutral). It is called "average" in the case of using bipolar power supply systems.

Details - a set of digital data necessary for user identification in the system (payment system, discount system, security system, authorization system, etc.).

A multivibrator (signal synthesizer) is a device consisting of a resistor and a driver of the upper and lower order (boundary, shoulder). A multivibrator is a mechanism for successive switching of positive and negative (direct and reverse) current flow.

ZV 2.0 (English - ipimegza! zeia! ryh) is a serial data transfer interface for medium-speed and low-speed peripheral devices in computing. Version 2.0.

О5ВОЙО (English ипимегза! зегия! бы5 оп-Ше до) is a further expansion of the ОВ 2.0 specification, designed to facilitate the connection of peripheral О5В devices to each other without the need to connect to a personal computer (PC).

ROB-terminal (English - roipi oyi zaiye - point of sale) - an electronic software and technical device for accepting payment from plastic cards, which can accept cards with a chip module, magnetic stripe and contactless cards, as well as other devices with contactless interface

Brie (eng. - rii reg ipsy) - the density of recording digital data. ope-iite-rip - one-time unique ROM code. 60 I CS (English - Iopdaishaip! gedipdapsu spesk) - longitudinal control with redundant code.

Termination is an auxiliary sign of the end of string data.

M-bit coding is the interpretation of a sequence of bits, where M means the number of bits that are allocated in the stream to interpret the elements of the data stream. As a rule, the number of bits in the sequence must be a multiple of M, otherwise the data (the remainder of the division) is discarded.

EMF - electromotive force.

Triggering distance is the distance between the emitter and the receiver (detector), at which stable data transmission occurs.

An H-bridge is an electronic circuit that makes it possible to apply voltage to the load in different directions.

Software (P3) - a sequence of commands, implemented in the form of runtime commands, intended for the functioning of computer systems that implement the assigned tasks and developed algorithms.

A frame (English iate) is an indivisible amount of information describing the state in which the inductive coil of the emitter should be.

The current frame (English - sishtepi itate) is the frame that is currently read by the driver. Based on the information received from the frame, the driver sets the emitter in the appropriate mode.

MES (English - peag uliyeYid sottipisatsiop, near-zero communication) is a short-range wireless high-frequency communication technology that makes it possible to exchange data between devices located at a distance of about 10 centimeters.

A transponder is a transceiver that sends a signal in response to a received signal.

ERIO (English - gadio itedcepsu idepiyisayop, radio frequency identification) method of automatic identification of objects, in which data stored in transponders or in KRIU-tags are read or written using radio signals.

Payment data - information stored by the second track (Igask 2). According to IBO/L EC 7813, this information is necessary for carrying out a transaction using the ROB5 terminal.

A bank/store/institution is an organization authorized to issue cards that contain digital information.

Computer system smartphone, phone, tablet, personal computer, other gadgets, etc.

Today, there are many electronic devices on the technology market that transmit data, payment instruments, access control systems, identification systems, as well as payment and cash service methods, authorization methods in discount systems, etc.

Such tools include cards with a magnetic stripe (CMS), which contain, among other things, data of payment cards. Payment KMS include, among others, credit, debit, gift cards and discount cards. Data is "recorded" on the magnetic strip of these cards by means of alternating magnetization of particles introduced into the magnetic strip.

Payment card data are read from their magnetic strip in the POS terminal when the card is passed through the magnetic card reader (through the card slot). The device for reading magnetic cards consists of a reading head and a decoding circuit associated with it. As the magnetic card moves through the magnetic stripe reader (through the card slot), its magnetic stripe passes in front of the reader head.

When moving relative to the reading head, the magnetic strip, which is equipped with magnetic domains of alternating polarity, creates a pulsating magnetic field in the gap of the reading head.

The reading head converts this pulsating magnetic field into an equivalent electrical signal.

The decoder circuit amplifies and digitizes this electrical signal, reproducing the same data stream that was recorded (that is, embedded at the time of recording) on the card's magnetic strip.

Coding of the magnetic strip is described in the international standard ISO 7811 and ISO 7813.

With the increasing popularity and capabilities of smartphones, there is a growing desire to use them as mobile wallets, as well as to use them to make payments at points of sale without using multiple magnetic stripe cards. The key obstacle to making such a decision was the lack of a data transmission channel between mobile phones and the ROB-terminal.

In this regard, several alternatives were proposed. They include the manual setting of data for transmission to the PO5 terminal, 20 barcodes displayed on the phone screen and reading with a device for reading 20 barcodes, KIUO, attached to phones and built into their hardware for short-range contactless communication communication (BBZ), which is launched using the phone application.

Of these methods, 20 barcodes and BBZ are the most promising. They have a wide acceptance range, but there is no possibility of their wide practical use due to the lack of appropriate reading devices at the points of sale. And in the case of BBZ, it should also be noted that there is no standardized possibility of using BBZ in many smartphones.

Accordingly, there is a need to improve devices and methods for transferring payment card data, as well as other digital information from a smartphone or other electronic device, remotely to a ROB5 terminal or other magnetic card reader.

A known method for data transmission using a magnetic strip emulator of a payment card (transaction card) according to O5 4791283 (11. The device |1| is intended for data transmission from a microprocessor located in a card that emulates a conventional credit or debit card) with a magnetic stripe. The data is sequentially transmitted from the microprocessor to the magnetic field generators, which emulate pre-recorded data on the magnetic stripe of a conventional card. This allows data to be transferred from the microprocessor to standard card readers without the need to significantly change the card readers (card reading devices). The scheme is used to determine the position and speed of movement of the card through the card reader to ensure the transfer of data from the microprocessor to the magnetic field generators within the time of scanning the card by the card reader head.

Disadvantages of the method for data transmission are caused by the design flaws of the device 11. which are as follows. 1. The device (1| is contact. The negative consequences of this are mechanical wear and contamination of the reading head, and, as a result, receiving a failure during data transmission, as well as the possible premature failure of the PO5 terminal. 2. The device (1| is made in form factors of the card. A negative consequence of this may be the inconvenience of use, because the device is easy to lose, as well as to be mechanically damaged. As a result, it is possible to receive a rejection during data transmission, and in the case of mechanical damage to the device, mechanical damage to the ROzZ terminal is possible. 3. In the device |1| with the need to detect the reading head. A negative consequence of this is the possibility of false (idle) activations. It also complicates the design of the device and reduces the life of the card without recharging. As a result, there is an unintended

From the use of electricity, the leakage of information that facilitates unauthorized access. 4. In the device P1| the information is pre-recorded on the device made in the form factor of the card, that is, the data can be read without authorization. This creates the problem of a threat to information security, that is, information can be read directly from this device.

There is also no data deletion mechanism in case of card loss. 5. In the device |1| there is no implementation of quick addition of new information. The negative consequences of this are a significant increase in time or the inability to expand (add) or replace data in the |11 device. 6. In the device |1| the op-e-rip function is not implemented in hardware and software. The negative consequences of this may be the lack of additional protection (due to the use of the same PIN code) every time the device is used.

Also known are the payment cart and the method according to the patent application M/O 2013181281 |2). The payment card according to (29U contains a magnetic stripe emulator and a set of "buttons" - areas on the surface of the payment card. When the "button" is pressed, it is authenticated as an access code and the payment function is activated by the magnetic stripe emulator. The payment card also contains a receiver-transmitter (block pairing) for wireless communication with a mobile device (phone, tablet). In this case, it is assumed that the payment function of the magnetic stripe emulator will be suppressed in response to the failure of the wireless connection with the mobile device.

A payment card according to (2) may include MES and KRIO emulators. The processor and emulator may detect a magnetic stripe card reader head. In this case, the processor controls a set of electromagnetic coils through a coil driver, depending on the position and/or speed (ie, speed and direction) of the magnetic stripe emulator relative to the head when the payment card passes through the magnetic card reader.

The disadvantages of the known method used on the basis of the device (2) are due to its design, and are as follows. 1. Device |2| is contact. The negative consequences of this are mechanical wear and contamination of the reading head, and, as a result, receiving a failure during data transmission, as well as possible premature failure of the PO5 terminal. 2. The device (2) is made in the form factor of a card. A negative consequence of this can be the inconvenience of its use, because the device is easy to lose, as well as mechanically damaged. As a result, it is possible to receive a refusal during data transmission, and in the case of mechanical damage to the device, mechanical damage to the РозЗ-terminal is possible. 3. In the device |2)| there is a need to detect the reading head and the speed of card movement. A negative consequence of this is the possibility of false (idle) activations. It also complicates the design of the device, which leads to a decrease in the service life without recharging. As a result, there is an unintended use of electricity, a leak of information, which contributes to unauthorized access. 4. In the device I2| the op-ite-rip function is not implemented in hardware and software. A negative consequence of this may be the lack of additional protection (due to the use of the same PIN code) with each subsequent use.

Also known is the system and method of the control scheme of the dynamic magnetic stripe communication devices according to the patent application UMO 2011103160 |Z). The system's magnetic stripe emulator includes a coil and a coil driver. The driver provides for receiving a signal of various forms.

It is assumed to receive a double frequency of the signal - doibie-ptediepsu (G/21).

The disadvantages of the known method are caused by the design and functioning of the elements (devices) of the |Z) system and are as follows. 1. The device |Z is a contact for reading cards with a magnetic stripe. The negative consequences of this are mechanical wear and contamination of the reading head, and, as a result, receiving a failure during data transmission, as well as possible premature failure of the PO5 terminal. 2. IZ device made in card form factor. A negative consequence of this can be the inconvenience of use, because the device is easy to lose, mechanically damaged. As a result, it is possible to receive a refusal during data transmission, and in the case of mechanical damage to the device, mechanical damage to the РозЗ-terminal is possible. 3. In the device |Z) there is a need to detect the reading head. A negative consequence of this is the possibility of false (idle) activations. It also complicates the design of the device and reduces the service life of the card without recharging. As a result, there is an unintended use of electricity, a leak of information, which contributes to unauthorized access.

As the closest analogue (prototype), patent 05 8628012 |4) was selected, which describes the system and method of operation of the M5 T near-field data frequency band transmitter, which

They transfer payment card data from a smartphone or other electronic device to the ROZ terminal for transactions. The device, which works on the basis of the M5T method, contains a driver and an inductor. A device operating on the basis of the M5T method receives data from a magnetic stripe containing payment card data, processes the received data from the magnetic stripe and generates high-power magnetic pulses containing the processed magnetic stripe data, which can then be retrieved by a reader device magnetic card PO5-terminal.

Disadvantages of the method of the closest analog (prototype) are caused by the design and functioning of the elements (devices) of the basic system |4| and are as follows.

First, the implementation of data transmission with the help of this system is possible remotely at a limited distance in the range of 1 to 2 inches, measured between the signal transmitting device, made in the form of an inductor (the coil of the signal transmitting device), and the detector (a device that which receives the signal), made in the form of a reader head located in a device for reading magnetic cards.

This "hard" limitation on the distance between the devices for transmitting and receiving a digital signal is a consequence of the fact that for a smaller distance between these devices (ie, less than 1 inch), the power of the inductor is too large. This leads to magnetization of the head core and/or excessive signal amplitude, which causes degradation of the amplifier/detector input stage.

For a greater distance between these devices (ie, more than 2 inches), the current design of the inductor does not contribute to an unambiguous interpretation of the signal transmitted by the inductor. The consequence of this is noise. Also, the distribution of the magnetic field in space and the region of the best data transmission is not determined.

Secondly, the implementation of the technology (method) and the device, which works on the basis of the M5T method, provides for the possibility of saving memory after a power outage for storing payment card data and other personal information. This characteristic of the invention is not secure, as the preservation of information may cause its unauthorized use by third parties.

Thirdly, when implementing M5T technology, an inductor coil with a Q factor in the range from 10 μmN/Ω to 80 μmN/Ω is used. The consequence of the above-mentioned high Q-value of the inductor coil is its high reactivity, due to which extraneous electromagnetic oscillations are generated. This results in signal noise and complicates the interpretation of the data produced by the decoder located in the magnetic stripe card reader.

Compensation of extraneous fluctuations leads to greater (at least 15 95) power consumption.

Also, due to the high Q factor of the inductor coil, in order to maintain the necessary ratio between the useful signal and the noise signal, it is necessary to provide increased radiation power. This, in turn, leads to remagnetization of the core (core) of the reader head, as a result of which intensive magnetic wear of the head occurs.

Fourthly, the device, which works on the basis of MOT technology, is additionally equipped with a head of a magnetic stripe reader (ZMO) for the possibility of obtaining data of the magnetic stripe of the hag and for their further use. The presence of a magnetic stripe reader head may facilitate unauthorized copying (use) and/or unauthorized transmission of protected data located on the magnetic stripe.

Fifth, the signal of the device operating according to the M5T method, due to the high signal transmission power, can be registered by devices, including those not designed for recording magnetic signals (for example, an electret microphone). The negative consequences of this are the possibility of third-party reading of data and unauthorized obtaining of information.

Sixth, the device |(4 hardware and software does not implement the op-itere-rip function.

A negative consequence of this may be the lack of additional protection (due to the use of the same PIN code) with each subsequent use.

The invention is based on the task of improving the method of safe and reliable contactless transmission of digital data, which is implemented on the basis of the basic design of the device of the same name, by an increased distance compared to the existing values in accordance with the current international standards for the transmission of digital data remotely on a card reader with a magnetic stripe , i.e. with an increased distance between the means of transmission and reception of digital data, through the effective implementation of the basic design elements of the device and effective sequences of the implementation of the method, which will contribute to improved energy-economic indicators of the implementation of the method and ensure safe and reliable transmission of digital data.

In addition, the declared method of digital data transmission, due to the absence of mechanical and magnetic wear of the reader head, is more gentle on magnetic stripe card reading devices compared to existing analogues and prototypes, as it provides a more effective synthesis of the key characteristics of the transmitted signal.

This technical problem is solved by the fact that in the method of inductive transmission of digital data based on the device of transmission of digital data by the inductive method (13). comprising an emitter driver (b) and an inductor (2) which consists of receiving pre-recorded digital data stored in a magnetic stripe on an electronic device, such as payment cards, and generating high-power magnetic pulses containing digital data of the magnetic stripe, which then received using a device for reading magnetic cards (7) in a receiving device (14), for example, a POS terminal, the new thing is that they provide safe and reliable transmission of digital data, including payment, using a device for transmitting digital data by inductive by method (13), at a distance between the inductor, made in the form of an inductive coil of the emitter (2), made with a core, and the receiving device in the form of a magnetic head of the reader (1), for example, a PO5 terminal, which is up to 15 cm, according to in the absence of a material carrier of transmitted digital data, while regulating the normalized radiation power under conditions of polarity change, which consists in rapid switching and the polarity of the supply voltage applied to the inductive coil of the emitter (2), with simultaneous amplification of the current in the inductive coil of the emitter (2), ensuring the polarization of the signal of the head of the magnetic emitter in the inductive coil of the emitter (2) with the parallel arrangement of the axes (10) and (8) ) emitting and detecting inductances (19), and when transferring data from a computer system (12) in the form of a computer, mobile phone, smartphone, tablet and other electronic devices, the axis of the inductive coil of the emitter (2) is placed parallel to the slot of the card receiver with magnetic strip, for example, in the PO5 terminal, at a distance of up to 15 cm.

The device for transmitting digital data using the inductive method (13) is supplied with a signal synthesizer (5). which is equipped with a real-time computing macrosystem, performed in the form of a micro-computer.

The device for transmitting digital data using the inductive method (13) is performed with the possibility of emulating one track number 1 (igask 1).

The device for transmitting digital data using the inductive method (13) is performed with the possibility of emulating one track number 2 (igask 2), which contains the necessary payment data in the case of payment transactions.

The device for transmitting digital data using the inductive method (13) is performed with the possibility of emulating one track number Z (igask 3).

The device for transmitting digital data using the inductive method (13) is supplied with software (17), which is performed with the ability to record details (16).

Software installed on a computer system (17). provide a system of authorization and identification of the user.

The device for transmitting digital data using the inductive method (13) is supplied with a real-time computing microsystem, which performs with the possibility of signal synthesis.

The signal synthesizer (5) is supplied with a real-time computing microsystem, which is performed with the possibility of sequentially setting the value of the current frame of the signal at the terminals of a two-bit digital bus with a reproduction frequency of a digital signal within the range of 0 N? to 4

KNa.

The driver of the emitter (b) is performed according to the H-bridge scheme.

As a driver of the emitter (b), the system uses a high-frequency switch with an average point of consumption and stabilization of the voltage of the average point relative to the upper and lower supply points.

An operational amplifier is used as a driver of the emitter (b).

The connection device (4) with computing and communication systems (12) is performed with the possibility of transmitting data and commands of the digital data transmission device by the inductive method (13) and with the possibility of checking the status of the digital data transmission device by the inductive method (13).

The connection device (4) with computing and communication systems (12) is performed with the possibility of maintaining standard methods of data transmission, such as, for example, Vicesfooi,

OAKT, K5232, OV and others.

The connection device (4) is made in the form of buttons or mode switches.

The flat core (18) of the inductive coil of the emitter (2) is made of magnetic

From a neutral or magnetically conductive material.

The flat cores (18) of the inductive coil of the emitter (2) have an oblong rectangular cross-section.

The flat cores (18) of the inductive coil of the emitter (2) have an oblong rectangular cross-section with rounded edges.

The flat core (18) of the inductive coil of the emitter (2) is oblong and rectangular in shape with a cross section in the form of broken faces.

The winding of the inductive coil of the emitter (2) is made of conductive materials with isolation of each turn from neighboring turns.

The device for transmitting digital data using the inductive method (13) is performed as an overlay on the computing device (12).

The device for transmitting digital data using the inductive method (13) is made in the form of a protective cover for the computing device (12).

The device for transmitting digital data using the inductive method (13) is made in the form of a key ring (12).

The device for transmitting digital data using the inductive method (13) is dug up in the form of a bracelet (12).

The device for transmitting digital data using the inductive method (13) is made in the form of a module built into the computing device (12).

The inductive coil of the emitter (2) is made with a Q factor ranging from 0.0001 to 1200 nnH/Opt.

The inductive coil of the emitter (2) is made with an unregulated arrangement of turns.

The inductive coil of the emitter (2) is made with an orderly arrangement of turns.

Increase the distance of digital signal transmission using polarization of magnetic field radiation.

Digital information is transmitted over a secure channel to the software installed on the computer system (12).

The transmitted signal is generated from the digital data transfer device by the inductive method (13) by switching the polarity of the power supply of the inductive coil of the emitter (2).

The device for transmitting digital data using the inductive method (13) is performed with the possibility of using the polarization effect.

The listed features of the method constitute the essence of the invention.

The existence of a cause-and-effect relationship between the set of essential features of the invention and the technical result achieved is as follows.

The modern level of technology allows to perform electronic transactions in various ways, which are implemented on the basis of various basic devices. However, in most cases, the way transactions are carried out depends on the chosen method or type of transaction (for example, transactions using a payment card, paying for parking in a parking lot from a prepaid account, etc.)

The most frequently used means is a payment card (magnetic or microprocessor). Miza is one of the most popular payment card systems. MaziegSaga and Ategisap Ehrgez55.

A specific bank account is allocated for the payment card. Accordingly, the funds available for this payment card can only be in one place. The existence of a large number of accounts in financial institutions leads to the need to use other cards, which is often inconvenient and dangerous for the karg user.

The proposed solution provides the ability to use several different accounts by storing and using virtual account details, as well as using other digital information that can be stored on magnetic stripe cards and transmitted to a magnetic stripe card reader. Thus, funds can be available simultaneously from several client accounts and do not require conversion of existing payment systems based on magnetic strip carts.

The solution to the set technical tasks can be used for the transfer of payment information necessary for payment, non-cash operations, as well as for the transfer of other digital data.

The advantages of the proposed technical solution are the possibility of universal transmission of digital data, including the transmission of payment data for making payments using devices equipped with magnetic card readers, and without the physical presence of such cards at the client and, therefore, without the use of such cards in the magnetic card reader device .

This makes it possible not to issue cards with a magnetic stripe (including payment cards) or not to carry many cards with a magnetic stripe (including payment cards), and also facilitates the convenience of both payment and overall transmission of digital information.

Data transmission using the proposed technical solution is safe, as the device does not store payment information, and the information is transmitted to the protected area of the software through a secure channel. This prevents unauthorized access to or use of information. Also, in the declared system, the op-itere-rip function is implemented, which contributes to information security even in case of unauthorized access to payment data, by using a unique rip code (new each time) with each new data transfer.

List of figures, drawings, schemes.

The method is implemented on the basis of the device shown in fig. 1-5, where: in fig. 1 shows a conventional scheme of transmission and reception of signals from the coil to the reading head by the inductive method, and a conventional distribution of power lines in the area of the head; in fig. 2 shows the scheme of the digital data transmission device using the inductive method; in fig. C shows the connection and interaction of the components of the claimed system, which works on the basis of the described method, with a card reader with a magnetic strip; in fig. 4 shows the life cycle and accompanying elements of the claimed system, which works on the basis of the described method (that is, from card issuance to data transmission); in fig. 5 shows a diagram of the design of the reading head, as well as the design of the inductive coil of the emitter and the orientation of the inductive coil of the emitter at the time of data transmission.

In fig. 1 oval lines show the conventional distribution of magnetic field lines in the area of the magnetic head (item 3).

In fig. Dotted lines mark the winding axes of the emitter coil (item 10) and the reading head coil (item 8).

In fig. 1-5, the following designations are adopted: 1 - reading head (a component of the reading device); 2 - inductive coil of the emitter;

C - spatial distribution of magnetic field lines of force in the area of the magnetic head; 4 - connection device; bo 5 - signal synthesizer;

b - emitter driver; 7 - reader, core of the reading element; 8 - the coil winding axis of the reading head; 9 - gap of the reading head; - the winding axis of the inductive coil; 11 - arrangement of elements during signal transmission (pos. 11 includes pos. 2 and pos. 10, as well as pos. 1, pos. 7 and pos. 8); 12 - communication or computer system with installed software; 13 - a device for transmitting digital data using the inductive method; 10 14 - receiving device (for example, PO5 terminal); - business entity (bank/store/institution); 16 - requisites; 17 software installed on the computing system (12); 18 - the core of the inductive coil of the emitter; 15 19 constructive inductance of the magnetic head reader.

Justification of the essence of the invention.

The system and the developed method of digital data transmission by inductive method are based on the effective design of the device for digital data transmission by inductive method (item 13).

The device in the system, on the basis of which the claimed method is implemented, is performed as follows.

The above-mentioned device (13) consists of an emitter inductive coil (item 2), an emitter driver (item 6), a signal synthesizer (item 5). a connection device (item 4) with computing devices (computer, mobile phone, smartphone , tablet, etc.) and/or communication systems (item 12).

The inductive coil of the emitter (emitter) (item 2) has the following features. The flat core of the inductive coil of the emitter (item 18 in Fig. 5) is made of magnetically neutral or magnetically conductive material, which acts as a frame for fixing the conductor.

Hearts have an oblong shape with a rectangular section. The form of the core with

With rounded or cut edges of the cross section.

The winding of the inductive coil of the emitter (item 2) is made of conductive materials with isolation of each turn from neighboring turns. Also, for example, an air layer can act as an insulator with a significant potential difference of less than 2 kV/mm (at a relative humidity of less than 50 9b).

During the operation of the inductive coil of the emitter (item 2), the gradient of the magnetic field is co-directed along the length (winding axis) of the emitter (item C in Fig. 1).

Since the magnetic head (item 1) registers the magnitude of the change in the magnetic field (i.e. the first derivative), for a larger peak amplitude (signal surge) it is necessary that the front of the polarity change tends to be instantaneous.

In this regard, the emitter driver (item 6) has the following features. To form expressive bursts and to extend the front of the emitted signal during the operation of the device (item 13), change the polarity of the current through the emitter (item 2) with the help of an H-bridge. This leads to the actual doubling of the input voltage of the driver (item 6) on the contacts of the emitter, due to which the range of stable operation of the declared technical means of transmitting digital data by the inductive method increases.

It is also allowed as a driver to use a high-frequency switch (item 6 in Fig. 2) with a middle point of the consumer and stabilization of the voltage of the middle point relative to the upper and lower power point. This is implemented using the control of the microcomputer system (item 5).

The signal synthesizer (item 5) has the following features. A computing microsystem (real-time micro-COM that uses an operating system, and which excludes the balancing of the computing load), acts as a synthesizer (item 5). and successively sets the value of the current frame of the signal on the outputs of the two-bit digital bus (between pos. 5-6 in Fig. 2). The signal reproduction frequency is from 0 H2 to 4 KNH.

It is possible to use a single-bit bus (not shown in Fig. 1-5) with the use of logical negation in order to control the H-bridge (which is one of the options for matching the synthesizer and the driver to simulate the auxiliary bit). At the same time, due to the potential difference, data transmission is implemented in the most efficient way.

Reception of data and commands, preparation, emission and control of the device (item 13) are carried out with the help of a computer system (item 12).

The connection device (item 4) with computing or communication systems (item 12) has the following features. It is made with the possibility of transmitting data and commands of the digital data transmission device by the inductive method (item 13) and with the possibility of polling (checking) the status of the digital data transmission device by the inductive method (item 13). The connection can be implemented using standard data transfer methods, such as Viseioi, OAVT,

K5232, OV, etc.

In the case when the payment data are not expandable, that is, set by the manufacturer, and are not intended to be added or changed during operation, or the digital data transfer device by the inductive method (item 13) is operated without the help of third-party control devices, the connection device (item 4) performed in the form of buttons or mode switches.

With the help of a digital data transfer device using the inductive method (item 13), stable reading of information is realized by reading the emulation of cards with a magnetic stripe (KMS) (according to the standards ISOLES 7810, ISOLES 7811, IBOLES 7812. ISOLEX 7813. ISO 8583 and

IZOLES 4909) using magnetic strip card readers (for example, ROZ-terminals) (item 14). security, discount, promotion, discount and other cards.

At the same time, they provide the maximum operational distance between the inductive coil of the emitter (item 2) and the magnetic head of the reader (item 1), which reaches up to 15 cm, and not 1-2 inches, as in the system and method of the closest analogue (prototype) | 41.

Taking into account the use of cards with a magnetic stripe in payment systems, the device for transmitting digital data using the inductive method (item 13) is used to transmit digital information, including payment information necessary for non-cash payment transactions.

The method and the device based on it are used as follows.

The connection device (pos. 4), being connected to the computing or communication system (pos. 12), is identified as a serial port (K5232 standard, OAKT), which is used to transmit commands and data to the digital data transmission device by the inductive method (pos. 13).

The user in the interface of the application (launched on a computer system, for example, a smartphone, phone, tablet, etc. (not shown in Fig. 1-5) selects which information

Zo (which is loaded and which must be transferred) it will use. After that, with the help of the computer system (item 12 in Fig. 3), the data is transferred to the computer microsystem (item 5).

With the help of a coupling device (item 4), the received data is transmitted to the signal synthesizer (item 5), after which the data is checked for integrity and prepared (converted into a sequence of frames) for radiation by the inductive coil of the emitter (item 2) to the card reader with a magnetic strip (item 14).

After preparing the data, the signal synthesizer (item 5) sends a signal to the driver of the emitter (item b), which allows the use of electricity from the power source. The signal synthesizer (item 5) sequentially lists the frames in the memory, which were converted on the basis of the transmitted data, to the signal synthesizer (item 5) from the computer system (item 12) with fixed time delays specified according to the coding method 1/2.

After the end of the data transmission, the signal synthesizer (pos. 5) transmits a prohibitive signal to the emitter driver (pos. b), as a result of which the power supply to the emitter driver (pos. b) and its subsidiary devices (i.e., the inductor of the emitter) (pos. 2) and modules connected to it (that is, all child objects).

On the basis of the received input from the signal synthesizer (pos. 5) with the help of the emitter driver (pos. 6), a signal with clearly defined rising and falling edges of the signal is formed, which is emitted by the connected inductive coil of the emitter (pos. 2). In fact, the signal from the device (item 13) is sent to all three readers (item 7).

The requirements for interpreting the signals of the three tracks (according to ISO 7811. IBO 7813) differ (task 1/2/3): - track number one (Igask 1) has a density of 210 ppi, a 7-bit alphanumeric code; - track number two (igask 2) mass density 75 Brie, 5-bit digital code; - track number three (Igasc 3) has a density of 210 Brie, a 5-bit digital code.

In the proposed technical solution, it is possible to send a signal to only one track at a time, based on the difference in the density and bit rate of coding of each track.

Each track (Igask 1/2/3) is terminated with a checksum and CS.

In the device for transmitting digital data using the inductive method (item 13), only one track containing the data to be transmitted is emulated at a time. The other two tracks are discarded from the reading process, as they do not pass the data integrity check for M-bit encoding and IX.

Hook, for example, to transmit payment data in the digital data transmission device using the inductive method (item 13), track number 2 (Igask 2), which has the necessary payment data, is emulated.

The inductive coil of the emitter (item 2) is made with a magnetically neutral core, which acts exclusively as a frame for fixing the conductor (item 18 in Fig. 5) of the inductive coil of the emitter (item 2).

The device for transmitting digital data using the inductive method (item 13) can be implemented in the form of an addition to mobile phones, smartphones, tablets, etc., as well as in the form of an overlay for an electronic device, a protective case, a keyring, a bracelet, etc.

Data transmission (including payment)" using a digital data transmission device using the inductive method (item 13) is carried out at a distance between the reading head of a card reader with a magnetic stripe (for example, a POS terminal) (item 14) to the inductive emitter coil (item 2), which is about 5-10 cm on average.

A realistic range of data transmission between transceivers is at a distance from 0 cm to 15 cm, depending on the design of the digital data reader (item 14).

At the moment of data transfer, the smartphone (phone, tablet, etc.) must be held parallel to the gap of the card reader (for example, in the ROB5 terminal) at a recommended distance of 5-10 cm. It is not recommended to move and rotate the device (item 13 ) during data transfer. That is, the axis (item 10) of the emitter coil (item 2) is placed parallel to the card slot (not shown in Fig. 1-5) of the card reader.

Card reading devices with a magnetic strip (reader) use a reading magnetic head with three tracks (according to IBOLES 7810). That is, in the housing of the magnetic head of the reader (item 1 in Fig. 5) there are three independent readers (item 7 in Fig. 5) for each track, which are located at a distance much smaller than the distance between the reader head (item 1) and the inductive coil of the emitter (item 2).

In the case of inductive data transmission, the distance between the reader (paragraph 7) and the inductive

With the coil of the emitter (item 2) is much greater than the distance between the readers (item 7) in the body of the reading head (item 1). For the purpose of explaining the physical representation, let us assume that all three sensors (see 7) are at the same point and do not affect each other. It was experimentally confirmed that the influence of three sensors on each other is so small that it can be neglected. Therefore, the above assumption is confirmed.

The reading head (item 1) is located as follows. The gap plane of the magnetic reading head (item 9) is oriented perpendicular to the direction of movement of the magnetic stripe (not shown in Fig. 1-5). Therefore, the axis (item 8) of the winding of the constructive inductance (item 19) is located parallel to the direction of supply (item 10) of the magnetic strip (not shown in Fig. 1-5).

Thus, during the passage of the magnetic strip (not shown in Fig. 1-5) in the area of the gap of the head (item 9), a change (gradient) of magnetization occurs. This creates an EMF in the inductance (item 19) of the reading head (item 1), which is amplified by the reader amplifier (not marked in Fig. 1-5) and transmitted to further processing (decryption).

That is, the magnetic reading head (item 1) registers the gradient of the magnetic field, not its absolute value. So, to transmit a signal, it is necessary to change the magnetic field in the magnetic gap region (item 9) rather quickly. This can be achieved even at a considerable distance from the reading head (Fig. 1), using a more powerful magnetic signal source than magnetic tape, for example, an electromagnet.

The closest physical model of our transmission system ("emitter head") is a "transformer". In fact, the magnetic head of the reader (item 1) and the inductive coil of the emitter (item 2) in our transmission system is a transformer with an unfavorable environment for the transmission of magnetic excitation (due to the significant distance between the windings of the "transformer" and the general absence of a magnetically conductive core (item 18). The inductance coil (item 2) acts as the primary winding, and the magnetic head of the reader (item 1) acts as the secondary winding.

Since, according to the IBO 7811 standard, cards with a magnetic stripe are encoded using the 1/2 method, which is a digital encoding method (that is, excessive in favor of the reversibility of the signal), there are enough significant characteristics of the signal, on the basis of which the detection, recognition and decoding of the digital signal takes place.

We determined experimentally that a necessary and sufficient condition for decoding a digital signal is the presence of pronounced peaks with a change in polarity and a fixed interval between them depending on the value being encoded (a single frequency (Y) for encoding a logical zero, and a doubled frequency (21) for logical unit coding).

Given the specifics of a digital signal, there is no need to transmit it completely, i.e. complete repetition of the signal shape, the absence of noise and distortions is optional.

It is necessary to noticeably (on the winding of the magnetic head (item 1)) transmit peaks of alternating polarity with fixed time intervals (carry out 11/21 - coding). This is achieved due to a sharp (such that it almost tends to instantaneous) switching of the polarity of the supply voltage applied to of the inductive coil of the emitter (item 2) with the corresponding current gain.

The distance of activation (the fact of successful transmission) of the digital signal depends on the intensity of the magnetic field, which the magnetic head (item 1) of the reader will be able to register.

Therefore, the field generated by the emitter coil (item 3) must have significant attenuation (gradient gain) or field inhomogeneity in order for the head (item 1) to be able to register the signal.

To increase the distance of the transmission, a more intense field is needed in the source (inductive coil of the emitter - pos. 2). The maximum operating distance is determined by the capabilities of the power source and the initial requirements for mass and dimensional characteristics.

We conducted numerous experiments, as a result of which the essential differences of the elements of the transmission system, which are indicated in the formula of the invention (utility model), were selected.

In the course of conducting experiments with various coils, we determined that there is a practical possibility to transmit digital data at a distance from the inductive coil of the emitter (item 2) to the head gap (item 9) of the reader up to 30 cm between them.

We were able to achieve such a result by using the inductive coil of the emitter (item 2) with a shaped magnetic core (magnetic core of a horseshoe configuration) (not shown in Fig. 1-5). This led to a local increase in the intensity of the magnetic field.

At the same time, we were able to register a qualitative increase in the intensity of the magnetic field by indirect signs (by the oscillation of the magneto-active element in the gap of the emitter) and the directional distribution of the field.

However, when transmitting data using the indicated coil with a shaped magnetic core

Zo (not shown in Fig. 1-5) at a distance closer to 10 cm, there is a risk of damage to the reading head.

Also, using a coil with a shaped magnetic core, it is necessary to use a more powerful (about 60 M/) power source.

The use of the specified coil (with a shaped magnetic core) increases the thickness of the device (at least 2 times compared to the declared device) due to an increase in the power source, the dimensions of the coil, the cooling system of the coil (stabilization of the characteristics during radiation) and the electronic harness taking into account (large power) characteristics.

Since one of the requirements for the inductive digital data transmission device (item 13) was compact size and low power consumption, an H-bridge was used to double the effective voltage that controls the inductive coil of the emitter (item 2).

In order to suppress dynamic effects (hysteresis and delay of the signal front, harmonics due to inharmonic oscillations) in the inductance, the inductive coil of the emitter (item 2) was made with a low Q-factor and a magnetically neutral core (item 10). The coil of the experimental sample of the claimed device has a factor of less than 10 nNN/Opt.

To reduce the Q-factor, we suggested chaotic winding of the coil (that is, disordered arrangement of turns). It was experimentally established that increasing the length of the inductive coil of the emitter (item 2) leads to a deterioration (logarithmically) of the operating range, and a thick (more than 2 mm thick) cylindrical coil does not meet the dimensional requirements. As a result, it was decided to use a flat coil with a winding axis parallel to the plane of the inductive coil of the emitter (item 2).

In connection with this constructive solution, we experimentally established the polarization effect. It consists in the fact that at low radiation energies, the activation distance was greater when the winding axes of the inductive coil of the emitter (item 2) and the inductance (item 19) in the magnetic head (item 1) were oriented parallel.

In turn, with the perpendicular arrangement of the axes of the coils of the reader (item 8) and the emitter (item 10), the smallest (up to the failure in direct contact with the reader head) range of stable data transmission distances between the inductive coil of the emitter (item 2) and reader (item 7).

With a significant (more than 5 M) increase in radiation energy, no polarization effect was observed. Due to the effect of polarization, the negative influence on the core (see 7) of the reading head (item 1), which is not magnetized, was reduced.

It was established that the noise signal (harmonics and magnetic noise of the environment) has little effect on the transmission of digital data, since the gradient of the magnetic field creates a signal that is much stronger than the noise level and can be registered by less sensitive amplifiers and detectors.

An example of the implementation of the invention

The inductive digital data transmission device (13) with the above-described structural features of its elements and the connections between them is made, after which the specified device (13) is included in the inductive digital data transmission system.

In the bank/institution/shop (item 15) (fig. 4 shows several items under the number 15, as variants of organizations that can appropriate data (issuers), for example, a bank or a store, etc.) assign the user's credentials (item 16) (Fig. 4 shows several items under the number 16. as a variant of the requisites, which, for example, are assigned to payment data, data of discount or authorization systems).

According to the specified details, a magnetic card reader (in Fig. 4 shows several items under the number 14, as options for card readers with a magnetic stripe, for example,

РО5-terminal, reader of discount cards, check-point) (item 14) identify the user who can access the funds on the client's account for payment (payment information) or, for example, use an existing discount program or system authorization

Details (item 16) are transmitted via a secure channel and stored in the protected area of the software (item 17) installed on a computer system (smartphone, phone, tablet, etc.) that supports work with a digital data transmission device using the inductive method ( 13).

With the help of a computer system (smartphone, phone, tablet, etc.) with installed software (item 17), payment information is transferred to the digital data transfer device by the inductive method (item 13).

З With the help of a device for transmitting digital data using the inductive method (item 13), digital information is transmitted to a device for reading cards with magnetic confusion (item 19). To transmit digital data, the magnetic stripe card reader uses the information contained in imask 1, or imask 2, or imask 3, since only one mask can be emulated at a time.

For example, to carry out a payment transaction, the PO5 terminal uses the information contained in iIgaskag (according to the IOLES 7813 standard). With the help of a device for transmitting digital data using the inductive method (item 3. 13), information is transmitted in the form of magnetic field fluctuations, creating a signal in the reading head (item 1), similar to the signal of the magnetic strip (not shown in Fig. 1-5) of a payment card (in Fig. 1-5 is not shown).

That is, in addition to payment information, any digital information is transmitted through the inductive digital data transmission device (item 13), which works on the basis of the appropriate method of inductive digital data transmission.

Thus, I do not use cards with a magnetic stripe for digital data transfer using the inductive digital data transfer device (13), which works on the basis of the developed method, including for payment operations with POS terminals!!. At the same time, all digital (including payment) information is transmitted through a digital data transfer device by the inductive method (item 3. 13) from a computer system with installed software (item 17).

A computer system with installed software (item 17) can record several different data (details): for example, data of several accounts, different payment organizations, including banks. Before transferring data, the user (not shown in Fig. 1-5) of the device must select data (details) (for example, an account) that will be transferred (for example, a payment will be made).

A computer system with installed software (item 17) can be implemented as part of an authorization and identification system that ensures the security of storage and transmission of digital information. At the same time, the device itself for transmitting digital data using the inductive method (item 13) does not store digital information, but only serves as a means of its transit transmission. This makes it impossible to use digital (primarily payment) information by any user other than the authorized user.

Also, in the declared technical solution, the operate-and-rip function is implemented, which contributes to information security even in case of unauthorized access to payment data.

The client applies to the organization authorized to issue cards to obtain information about the client's account, which contains digital information and allows for data transfer, for example, to perform payment operations during interaction with card readers with a magnetic stripe, for example, ROo5 terminals.

The same information, including about the client's account, about all payment details and other characteristics of the account, which the issuing organization records on cards with a magnetic stripe, is transmitted through a secure channel to a secure area of the software, to a computer system (item 12), which interacts with the digital data transmission device by the inductive method (item 13).

With the help of a computer system with installed software (item 17), the relevant (including payment) information is transmitted through the inductive digital data transfer device (item 13) contactlessly to a card reader with a magnetic stripe (for example, a POS terminal ) without physically using a card with a magnetic stripe during data transfer (for example, during calculations).

Industrial application.

The advantages of the proposed technical solution are: - absence of mechanical and magnetic wear of the head of the reading device; - low electricity consumption (economy is from 1595 and above) in comparison with non-contact analogues and the prototype; - the possibility of working from O5VOYU; - provision of normalized (optimized, free of redundancy) radiation power, which makes it difficult for third-party reading of data (that is, helps to strengthen the security of transactions); - ensuring minimization (that is, reduction to the minimum necessary level) of energy consumption and mass-dimensional characteristics due to the standardization of radiation power; - synthesis of exclusively necessary signal characteristics by means of a computer microsystem; - implementation of module consumption management in different operating modes of the device, which saves electricity and leads to an increase in the service life without recharging.

Also, the advantage of the claimed method based on the inductive digital data transfer device (item 13) is that the above-mentioned device (13) does not store digital (including payment) information, due to which it is a secure tool. The device for transmitting digital data using the inductive method (item 13) also does not contain a magnetic card reader, which prevents unauthorized dissemination of protected information.

The device for transmitting digital data using the inductive method (item 13) as part of the system of the same name is portable, compact and energy-efficient compared to existing non-contact analogs and prototypes. This allows it to be used within the framework of the electricity consumption standard 0О5В2.0 and О5Войд. According to these standards, the power provided to the consumer is up to 2.5 MM (5M, 0.5 A).

The system and method of inductive transmission of digital (payment) data makes it possible to dynamically generate data using available computing/communication means for identification in (payment) systems such as PO5-terminal.

Thus, the implementation of the claimed invention (utility model), which meets the requirements and demands of the modern market, provides the possibility of servicing all types of transactions and various types of payment accounts.

Sources of information: 1. Tkapzasiyup saga tadpeiis 5iire etshayug (simulator of magnetic stripe payment card! (cards for transactions). Patent 05 4.791.283. IPC ObK 7/08. Application OB 870.005. Application. 03.06.1986. Publ. 13.12.1988 2. Rautepi saga apa teimyoai5 (payment card and method). Application publication

UMO2013181281. IPC sСО6К 19/07 (2006.01). Date of publication 05.12.2013. Priority date: 05/29/2012. 3. Buvietv apa teinodiz yog apme sigsiyv og dupatis tasdpeiis vigire sottipisaiop5 demise5 (systems and method of controlling schemes! communication devices of the dynamic magnetic strip). Publication of the MO application 2011103160. IPC SOb6K 19/07 (2006.01). Date of publication 08/25/2011. Priority date: 16.02.2010.

4. Bubvivet apa teiioy itog a razerapa peagieYid tadepiis 5igire daya igapzitiChTseg (System and method of operation of the frequency band transmitter of the near field data of the magnetic band). Patent

O5 8628012. IPC so6bKk 7/08 (2006.01). Date of publication 01.14.2014. Priority date:

Claims (1)

20.01.2013. FORMULA OF THE INVENTION 1. The method of inductive transmission of digital data, according to which the data from the magnetic strip containing payment card data is received from the computer system, the received data from the magnetic strip is processed and high-power magnetic pulses containing the processed magnetic strip data are generated using a digital data transfer device data are transmitted by magnetic pulses, which are then received by the reading head of the device for reading magnetic cards, which differs in that the digital data transmission device is equipped with an inductor, and the data transmission is controlled using the appropriate software installed on the computer system, while the axis of the inductor and the reading head (19) is placed mainly in parallel, at a distance of up to 15 cm, ensuring the polarization of the inductor signal, and the normalized radiation power is regulated by changing the polarity, which consists in quickly switching the polarity of the supply voltage applied to the inductor (2), with a simultaneous increase in the current inhim 2. The method according to claim 1, which differs in that the digital data transfer device by the inductive method (13) is equipped with a signal synthesizer (5), which is equipped with a real-time computing microsystem, which is performed mainly in the form of a micro-computer. 3. The method according to claim 1, which differs in that the digital data transfer device by the inductive method (13) is performed with the possibility of emulating one track number 1 (Igask 1). 4. The method according to claim 1, which differs in that the digital data transfer device by the inductive method (13) is performed with the possibility of emulating one track number 2 (track 2), which contains the necessary payment data in the case of payment operations. 5. The method according to claim 1, which differs in that the digital data transmission device by the inductive method (13) is performed with the possibility of emulating one track number Z (IgaskK 3). b. The method according to claim 1, which is characterized by the fact that the software installed on the computer system is performed with the possibility of recording details (16). 7. The method according to point b, which differs in that the software installed on the computer system is equipped with a system of authorization and user identification. 8. The method according to claim 1, which differs in that the digital data transfer device by the inductive method (13) is equipped with a real-time computing microsystem, which is performed with the possibility of signal synthesis. 9. The method according to claim 2, which differs in that the signal synthesizer (5) is equipped with a real-time computing microsystem, which is performed with the possibility of sequentially setting the value of the current frame of the signal at the terminals of a two-bit digital bus with a reproduction frequency of the digital signal within 0 N? up to 4 KN". 10. The method according to claim 1, which is characterized by the fact that the digital data transfer device by the inductive method (13) is equipped with an emitter driver (b), which is performed according to the H-bridge scheme. 11. The method according to claim 10, which differs in that a high-frequency switch with an average point of consumption and stabilization of the voltage of the average point relative to the upper and lower power points is used as a driver of the emitter (6). 12. The method according to claim 10, which differs in that an operational amplifier is used as a driver of the emitter (6). 13. The method according to claim 1, which is characterized by the fact that the inductive digital data transfer device (13) uses a connection device (4) with the computing system (12), which is performed with the possibility of transmitting data and commands to the inductive digital data transfer device (13) and with the possibility of checking the state of the digital data transmission device by the inductive method (13). 14. The method according to claim 13, which differs in that the connection device (4) with the computing system (12) is performed with the possibility of maintaining standard methods of data transmission - Vineyusii, OAVT, 5232, OV. 15. The method according to claim 13, which differs in that the connection device (4) is made in the form of buttons or mode switches. 16. The method according to claim 1, which differs in that the flat cores (18) of the inductor (2) are made of magnetically neutral or magnetically conductive material. 17. The method according to claim 16, which is characterized by the fact that the flat cores (18) of the inductor (2) have an oblong rectangular cross-section. 18. The method according to claim 16, which is characterized by the fact that the flat cores (18) of the inductor (2) have an oblong rectangular cross-section with rounded edges. 19. The method according to claim 16, which differs in that the flat core (18) of the inductor (2) is oblong and rectangular in shape with a cross section in the form of broken faces. 20. The method according to claim 1, which differs in that the winding of the inductor (2) is made of conductive materials with insulation of each turn from neighboring turns. 21. The method according to claim 1, which is characterized by the fact that the device for transmitting digital data using the inductive method (13) is performed as an overlay on the computing device (12). 22. The method according to claim 1, which differs in that the device for transmitting digital data by the inductive method (13) is made in the form of a protective cover for the computing device (12). 23. The method according to claim 1, which differs in that the device for transmitting digital data using the inductive method (13) is made in the form of a key ring (12). 24. The method according to claim 1, which differs in that the device for transmitting digital data using the inductive method (13) is made in the form of a bracelet (12). 25. The method according to claim 1, which is characterized by the fact that the device for transmitting digital data using the inductive method (13) is made in the form of a module built into the computing device (12). 26. The method according to claim 1, which differs in that the inductor (2) is made with a Q factor ranging from 0.0001 to 1200 nH/Opt. 27. The method according to claim 26, which differs in that the inductor (2) is made with an unregulated stacking of turns. 28. The method according to claim 26, which differs in that the inductor (2) is made with an orderly stacking of turns. 29. The method according to claim 1, which is characterized by the fact that the digital signal transmission distance is increased using the polarization of the magnetic field radiation. 30. The method according to claim 1, which is characterized by the fact that digital information is transmitted over a protected channel to the software installed on the computer system (12). 31. The method according to claim 1, which is characterized by the fact that the output signal from the digital data transmission device is generated by the inductive method (13) by switching the polarity of the inductor power supply (2). 32. 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