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Jammer for tags and smart cards

A technology of jamming machines and jamming signals, applied in the field of jamming machines, can solve the problem of being close enough to other people without attracting attention, and achieve the effect of increasing private security

Inactive Publication Date: 2006-12-27
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Likewise, for bills with tags integrated therein, there is a risk that a thief, by carrying a card reader and moving through a crowd, such as in a shopping mall or on a sidewalk, will pick on a potential victim, They can get close enough to other people unobtrusively that a tag integrated into the ticket will come into the reader's range of action to look for tickets carried by those people

Method used

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  • Jammer for tags and smart cards

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 is a circuit block diagram of a so-called RFID system (Radio Frequency Identification System), ie a system for contactless communication between a card reader and a data carrier. The RFID system comprises a card reader 1 and a data carrier 2 which is in wireless contact with the card reader 1 if the data carrier 2 is in the active range of the card reader 1 . The card reader 1 comprises processing means 3, such as for example a microprocessor or microcontroller, which communicate via a data bus with program storage means 4 in which an operating system OS is stored to enable the processing means to perform basic operations, and A program code, ie software SW, is stored therein for execution in the processing device. The program storage device 4 may be a semiconductor memory such as a PROM, EPROM, EEPROM or the like. It should be mentioned that the processing means and program storage means may also take the form of ASIC, PAL or similar integrated circuits or d...

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PUM

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Abstract

A jammer (20) for jamming the readout of contactless data carriers (2, 2') by a reader (1) emitting electromagnetic scanning signals (SS) has an air interface (11) for receiving electromagnetic signals, analyzing means (15) for analyzing the electromagnetic signals received by the air interface, and jamming-signal generating means (18) for generating a jamming signal (DS). The analyzing means (15) for analyzing the electromagnetic signals received are arranged to identify scanning signals (SS) from the reader (1) among the electromagnetic signals received and, when scanning signals (SS) are detected, to transmit a control signal (CS) to the jamming-signal generating means (18), which latter in turn generate the jamming signal (DS) and transmit it via the air interface (11) on receipt of the control signal (CS).

Description

technical field [0001] The invention relates to a jammer for jamming the reading of a non-contact data carrier by a card reader emitting electromagnetic scanning signals. [0002] The invention also relates to a container with a jammer according to the invention. [0003] The invention further relates to a data carrier which can be read without physical contact. Background technique [0004] Recent developments in the field of contactless (RFID) data carriers relate primarily to their miniaturization and their increased immunity against environmental factors. These developments make it possible to incorporate such contactless data carriers, also known as transponders or tags, into almost any desired substrate material. In this way, it is known that, for example, at an early stage in the production process, a contactless data carrier will be incorporated into the back of the garment in order to enable the operations of manufacturing the garment and the wholesale and retail ...

Claims

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Application Information

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IPC IPC(8): G06K19/07G06K7/00G06K17/00
CPCH04K3/825G06K7/0008G06K2017/0064H04K3/45G06K19/0723H04K3/86H04K2203/20G06K19/07336
Inventor A·阿伦东克
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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