Abstract:
An antenna on a removable card An antenna on a removable memory card (1) is intended for the creation of contactless communication channel of the mobile communication device. The antenna is in the form of a high-frequency transformer (2) with an oblong ferrite kernel (3) with resonantly tuned primary winding L1. The emitted signal is brought to the primary winding L1. The secondary winding L2 is left open circuited, without closing the load circuit in a contact way, without ohm load; it emits electrical field with its outputs. The high-frequency transformer (2) can be in the form of auto-transformer with one winding. The signal emitted in the direction towards the removable memory card (1) can be received through the auxiliary winding L3 or through an independent receiving antenna (8). The secondary winding L2 can have a larger number of loops than the primary winding L1 or it can be formed by only one winding in the form of a pipe.
Abstract:
The carrier of a memory card (2) is in the shape of a flat card (1) with a contact field (6), which is connected to inner circuits of the memory card (2) over a conductive connection (8). Mechanical connection of the memory card (2) with the remaining body of the flat card (1) can be in the form of connection strips (5) that interrupt the snap-out line (3). A conductive connection (8) can run through a connection strip (5). The flat card (1) can be equipped with a foil (9). The flat card (1) can be inserted into an automated device, which operates with it as if it was a standard card with a contact field (6). The user snaps out the memory card (2) from the carrier's body by which the conductive connection (8) is mechanically interrupted. The conductive connection (8) can be deactivated electrically using disconnecter (10).
Abstract:
The method and solution can be mainly used for data transmission in cashless payment applications, especially those realized from the mobile phone while using RFID and/or NFC platform. The signals with different frequency are combined in antenna system (M) of the receiver (1) and transmitter (2) and then the carrier signal is separated from the result of the combined signals and the transmitted data are demodulated. The difference between the frequencies has a value, that corresponds to the size of the subcarrier frequency to which the receiver (1) is preset. During transmission the transformer connection coefficient can have the value k = 0,2 - 0,001, while the antenna (3) of the receiver (2) is tuned narrowly to the transmitter's (2) frequency without considering the subcarrier frequency. The transmitter is preferably located on a memory card or on a card with a format and interface of a memory card, e.g. micro SD.
Abstract:
The system contains a virtual POS terminal's unit in the user's personal device. The mobile communication device (1) contains a virtual POS terminal's unit (4) and also a removable memory card (3), on which there are at least two physically separate secure elements (2) stored. The removable memory card (3) is connected to the secure element (2) containing the secured part of the virtual POS terminal. The mobile communication device (1) and/or the separate portable element (6) is adjusted in such a way to be able to connect to a remote payment procession server. The removable memory card (3) and the separate portable element (6) can be equipped with the NFC communication element. Depending on the user choice, a corresponding secure element (2) with the selected payment card unit (14) is activated on the removable memory card (3). The user's payment card's identification data are supplemented by the payment receiver's identification data and also by a one-time password that was created in the one-time password unit.
Abstract:
Two solenoid antennas (2, 3) with a ferrite core are placed mutually in parallel and outside the groundplan of the flat spiral antenna (1). Longitudinal axes (4) of the solenoid antennas (2, 3) are in parallel with the lateral sides of the flat spira antenna (1) and the distance between the longitudinal axes (4) of the solenoid antennas (2, 3) is 0,5 to 1,25 times the width of the flat spiral antenna (1) at most. The middle of the flat spira antenna (1) lies in a zone defined by the prolonged longitudinal axes (4) of the solenoid antennas (2, 3). The solenoid antennas (2, 3) are connected to the same output of the excitation element; preferably the solenoid antennas (2, 3) are identical. The flat spiral antenna (1) can be connected to the NFC chip (7) thorugh the low noise amplifier (6). The solenoid antennas (2, 3) can be on one side of the printed circuit board (5) and the flat spiral antenna (1) can be on the opposite side of the printed circuit board (5).
Abstract:
The emitter is intended to provide a contactless communication channel (particularly RFID/NFC) in miniature build space. The emitter has an oblong, at least partially ferrite core (1), the core (1) is winded up by a wire (4) with at least two threads (2), the threads (2) are on the core (1) placed tightly next to each other and the effective width (w)of one thread (2) corresponds to the radius of the core (1) in the circular core (1) cross-section, or corresponds to the equivalent radius in other shapes of the core (1) with deviation up to +-75%. The wire (4) of the coil is flat, or the coil includes several wires held parallel to each other (41 to 4N) forming a multi-stage thread. The emitter can be placed in the removable memory card (5) and/or on the PCB board (10) and/or SIM card (9) and/or battery (11). Modulation of data transmitted by the emitter uses electromagnetic wave generator with a frequency different from the receiver, difference of these frequencies corresponds to the subcarrier frequency.
Abstract:
The payment card, apart from a chip with the common payment card unit, also contains a second chip with an indifferent POS payment terminal, which becomes a specific POS terminal on behalf of the payments recipient after connection with the reader of the payments recipient. These two chips on the payment card are connected in a contact way. The reader contains the common POS terminals identification data which are sent 10 to the payment card of the customer, where they are moved to the second chip for the configuration of the POS terminal. Then on the payment card, the payment-terminal application is realized as if it were a common POS with the inserted card in a contact way, using the payment account data from the first chip. The payment cryptogram generated in the other chip on the payment card is sent to the reader for payment processing on 15 behalf of the reader-holder (merchant).
Abstract:
The process encompasses the communication between trade system accessible over GUI of the mobile communication device (4), when after the item being purchased is selected, the acquirer's (12) identification is loaded from the removable memory card (1). The acquirer's (12) identification is sent to the trade system's (2) headquarters, where after it is approved, the transaction payment parameters are created and these enter the removable memory card (1) as an initiator of the payment terminal application. The payment terminal application runs on the removable memory card (1) and it creates a payment cryptogram. This one is sent into the trade system's (2) headquarters, where it can be handled as a common cryptogram of usual POS terminals. The process can encompass even a preparation and pre-preparation phase, thanks to which corresponding applications of individual participants of the system are installed, configured and activated. The online payment can preferably realize even the reset of the counter on the payment device.
Abstract:
Removable card for a contactless communication contains an antenna (4) formed of threads (10) placed on the external surface of the body (1) of the card and covered by a layer (7) of a ferromagnetic material. In advantageous adjustment the antenna (4) contains on one area (2) of the card eight threads (10) and both areas (2) of the card are covered by a layer (7) of a ferritic foil. The antenna (4) is connected to the series with element (12) with capacity and the resistance (11) on the other side. Resonant circuit is tuned in for the final frequency from 13.0 to 15.0 MHz. The signal from the antenna (4) is read between the first and the second thread (10) from the side of the element (12) with capacity. The production method for the antenna on the body of the removable card resides in the fact that a groove of the conductive path (5) shape is dredged on the surface of the card's body (1), the groove is filled with a conductive material and a ferromagnetic material layer (7) is applied on the surface of the area (2) covering the antenna (4).
Abstract:
During the contactless transfer of the data from PICC (1) to PCD (4) with the load modulation within PICC (1) the analogue signal between the transmitting antenna (3) and the output of the driver (2) is demodulated. From the demodulated output the digital data are generated for the direction of the subsequent modification of the signal led to the PICC (1) antenna set. The digital data gather from the demodulated signal are used for the amplification and/or attenuation of the signal received on the side of the PCD (4) and/or for synchronization or other modification of the signal on the side of the PICC (1), whereby no further modification of the driver (2) is needed. The connection on the LA, LB outputs appears to the driver (2) by its characteristics, mainly by its impedance, in the same way as the connected antenna (3) of the original connection according to the prior state of the art. Such processing and connection allows to use broadly available analogue drivers (2) which can be combined with various other elements of other producers, which achieves real compatibility and high amount of freedom when designing the circuits, as well as the independence from the particular producer of the chips.