ASKEROGLU HAKAN (TR)
YESIL ISMET (TR)
BASAR CIHAT CELIK (TR)
ASKEROGLU HAKAN (TR)
YESIL ISMET (TR)
| US6422475B1 | 2002-07-23 | |||
| GB2351590A | 2001-01-03 | |||
| EP1043704A1 | 2000-10-11 | |||
| EP1394728A1 | 2004-03-03 | |||
| US6422475B1 | 2002-07-23 | |||
| GB2351509A | 2001-01-03 | |||
| EP1043704A1 | 2000-10-11 | |||
| EP1394728A1 | 2004-03-03 |
| 1. | The invention prevents proper functioning of another card reader under the frequency in question by applying voltage at a certain frequency on an inductive charge. |
| 2. | The invention is characterized by placement of a coil with a ferrite core near where it is possible for the apparatus to be installed. |
| 3. | Signals similar to the data of the card for which magnetic field prevention will be performed but selfrepeating form around the coil. By this way, capturing data from the card is prevented. |
| 4. | To create an electromagnetic field, the invention is characterized by presence of an electronic circuit, electronic circuit power input (10), and regulating circuits (3). |
| 5. | The invention is characterized by production of the frequency required to ruin the data at oscillator A (6) and production of the conveying frequency at oscillator B (5). |
| 6. | In the event that coil Ll (4) or the power input (10) is rendered dysfunctional for some reason, the control output (7) shows the abnormal situation indicator. |
| 7. | It is stipulated that the invention will step in, in the event that an illegal card reader is installed on ATM devices. The invention is characterized by formation of an electromagnetic field by way of placement of a coil (17) underneath the card insertion slot (14). |
| 8. | Operation of the coil (17) and stepping in by the electromagnetic field takes place owing to the device (12); and the invention is characterized as the system for formation of frequency and electromagnetic field extending from the power supply to the coil. |
GENERAL INFORMATION ABOUT INVENTION
5 This invention is regarding prevention of reading of cards with a magnetic stripe by undesired people.
Some people with bad intentions read the information on the stripes of magnetic cards belonging to clients at automated teller machines 10 (ATM) owned by banks and accessible for utilization by banks' clients by reading them by means of a device (card reader) that they stick in the card insertion slot of an ATM machine and store this information, and afterwards copy this information onto another card and can Access clients' accounts and this process continues until it is noticed or 15 the account is depleted. Our invention has been designed to prevent this situation, and to prevent banks and banks' clients from suffering from a loss.
For this purpose, to prevent the electronic card fastened by sticking in 20 the card insertion slot of an automated teller machine by people with bad intentions from accurately reading and consequently recording, that is, for the purpose of ensuring that the reader makes errors during the reading process, near where this device can possibly be installed, a coil with a ferrite core is placed and signals similar to the 25 data on a card but self-repeating are formed around this coil. As the reader cannot precisely read the data on a card, it will not be able to record, and people with bad intentions will not capture the data on the magnetic card. BRIEF DESCRIPTION OF DRAWINGS
Figure 1 shows the block diagram of the invention.
Figure 2 shows the way that a regular ATM machine operates as a block.
Figure 3 shows positioning of the illegal copying device.
Figure 4 is the illustration of the way in which the device is connected to an ATM machine. DESCRIPTION OF INVENTION
The purpose of this invention is to prevent reading of cards with a magnetic stripe in the restricted area. For this purpose, the block diagram in Figure-1 is made. In order to attain this purpose, it is required that an electromagnetic field be created around an inductive charge (4). For this electromagnetic field to be created, the electronic circuit made needs to have a power input (10) and this power input should be regulated in line with the required voltage values. +12V (2) and +5V (3) are the regulating circuits. For ruining the data obtained by the card reading device during reading, the electromagnetic field required to be formed needs to be in certain frequencies. This frequency is obtained at oscillator A (6). Conveying frequency is produced at oscillator B (5). It is conveyed to coil Ll (4) over the driver circuit (9) and it spreads from here as electromagnetic wave. If coil Ll (4) is removed from its setting, this is noticed through the feedback (8) path and the control output (7) is positioned as an abnormal situation indicator. The same situation also applies to power input (10). If power input (10) is interrupted for some reason, the power circuit (1) will not operate and the control output (7) will be in abnormal status.
As this device can be utilized anywhere, it is actually designed to be utilized in ATM's. Its connection to ATM's will be described below.
The card reader (13) circuit obtains the power that is needed for it to operate from the power supply (11) unit; and when a card comes to the card insertion slot (14), the card reader (13) unit reads and evaluates the data on this card and communicates them to the computer (15) in the ATM. There are no problems as far as here. The problem will start when another card reader (16) is installed in front of the card insertion slot (14) and on the exterior surface of the ATM device. As it is required that the card desired to be inserted into the card insertion slot (14) pass through the illegal card reader (16), the data 5 on the card will be read and stored by the illegal card reader (16) also. This is an undesired situation. To prevent this, a coil (17) is placed immediately underneath the card insertion slot (14). . the coil's forming an electromagnetic field in the way desired is attained. The process of operating this coil is is performed by the device (12). The device (12) obtains its power from the ATM power supply (10) (11), and ensures that the card reader unit (13) is also fed. If there is a problem in the coil (17) or the power supply (11), the card reader unit (13) will not operate and as it will not be possible for the card to enter the card insertion slot (14), as the card will not pass through the illegal card reader, no data will be read and it will not be able to perform recording. If there is no problem whatsoever with the power supply or the other elements, in this case, due to the electromagnetic field spread by the coil (17), the illegal card reader will not be able to perform reading and as a result will not be able to record the data on a card that passes through it.