WO2008046364A1 - Transponder with read protection, and associated method - Google Patents

Transponder with read protection, and associated method Download PDF

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Publication number
WO2008046364A1
WO2008046364A1 PCT/DE2006/001854 DE2006001854W WO2008046364A1 WO 2008046364 A1 WO2008046364 A1 WO 2008046364A1 DE 2006001854 W DE2006001854 W DE 2006001854W WO 2008046364 A1 WO2008046364 A1 WO 2008046364A1
Authority
WO
WIPO (PCT)
Prior art keywords
transponder
read
pause
data
out mechanism
Prior art date
Application number
PCT/DE2006/001854
Other languages
German (de)
French (fr)
Other versions
WO2008046364A8 (en
Inventor
Alfred Pohl
Robert Tschofen
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/DE2006/001854 priority Critical patent/WO2008046364A1/en
Priority to DE112006003955T priority patent/DE112006003955A5/en
Publication of WO2008046364A1 publication Critical patent/WO2008046364A1/en
Publication of WO2008046364A8 publication Critical patent/WO2008046364A8/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092

Definitions

  • the invention relates to a transponder which emits data stored in it after receiving a readout signal.
  • the invention relates to a method for reading data from a transponder.
  • Transponders are - mostly wireless - communication, display or control devices that receive incoming signals and automatically respond to them. They can be passive or active. Passive transponders are understood to be systems that derive the energy needed to communicate and process internal processes solely from the field of read / write units, such as, e.g. RFID (Radial Prequency] Edentification) transponders. Such RFID transponders are usually attached to goods and contain for the identification of this product stored data. As a result, it is possible to investigate buyer habits by reading the RFID transponders on the goods.
  • the invention is therefore based on the object of specifying a transponder with readout protection and an associated method in which unwanted reading out of data is avoided.
  • the first object is achieved by a transponder having the features of claim 1.
  • a solution to the second task is indicated by the method according to claim 6.
  • Transponders are mostly mobile devices that are requested to output or to send data stored in it due to a received read-out signal. This is also true for RFID (Radial Frequency Identification) transponders, e.g. Receive a read-out signal from a read / write device via radio and then usually respond with the transmission of data.
  • RFID Radio Frequency Identification
  • such transponders are provided with a read-out mechanism which effects the transmission of the data only after a PAUSE following the reception of the read-out signal.
  • the interpretation mechanism can be activated, so that when a read signal is received, the data stored in the transponder is not read out immediately, but only after a certain, settable time. This can be done by means known to those skilled in the art, e.g. corresponding to the discharge of a capacitance, by means of a shift register or e.g. with a counter with external stimulated clock of defined length.
  • the PAUSE duration can be controlled by one or more internal and / or external parameters.
  • Internal parameters include setting a
  • PAUSE flags of authorized persons and setting the PAUSE duration above predefined values e.g. using a PAUSE register.
  • field strength, temperature, humidity, water, oxygen, etc. can be used as external parameters.
  • the flowchart shown in the figure shows the essential steps of the method according to the invention for Protected readout of data of a transponder.
  • Receives the transponder by receiving a read-out signal the request to read out stored data, it is first queried whether the read-out mechanism is activated in the transponder. If this is not the case, the data are immediately discontinued, otherwise this is done after a presettable PAUSE duration.
  • the response within a read cycle can be delayed. After the magnetic reading field is applied, the transponder responds only after n seconds. The answer can also be made only at the next, after the next or a later Auslese pulp. For each attempt, the register is decremented by one.

Abstract

The invention relates to a transponder having a read mechanism. After a drive signal has been received, said mechanism causes the data stored in the transponder to be transmitted only after a PAUSE. Furthermore, the invention comprises a corresponding method.

Description

Beschreibungdescription
Transponder mit Ausleseschutz und zugehöriges VerfahrenTransponder with readout protection and associated procedure
Die Erfindung betrifft einen Transponder, der nach Empfang eines Auslesesignals in ihm gespeicherte Daten aussendet.The invention relates to a transponder which emits data stored in it after receiving a readout signal.
Außerdem betrifft die Erfindung ein Verfahren zum Auslesen von Daten eines Transponders .Moreover, the invention relates to a method for reading data from a transponder.
Transponder sind - meist drahtlose - Kommunikations-, Anzeige- oder Kontrollgeräte, die eingehende Signale aufnehmen und automatisch darauf antworten. Sie können passiv oder aktiv sein. Unter passiven Transpondern versteht man Systeme, die die zur Kommunikation und zur Abarbeitung interner Prozesse benötigte Energie ausschließlich aus dem Feld von Schreib-/ Leseeinheiten beziehen, wie z.B. RFID- (Radial Prequency ]Edentification) -Transponder . Derartige RFID-Transponder werden üblicherweise an Waren angebracht und enthalten zur Kenn- Zeichnung dieser Ware abgespeicherte Daten. Demzufolge besteht die Möglichkeit, durch Auslesen der RFID-Transponder an den Waren Käufergewohnheiten auszuforschen.Transponders are - mostly wireless - communication, display or control devices that receive incoming signals and automatically respond to them. They can be passive or active. Passive transponders are understood to be systems that derive the energy needed to communicate and process internal processes solely from the field of read / write units, such as, e.g. RFID (Radial Prequency] Edentification) transponders. Such RFID transponders are usually attached to goods and contain for the identification of this product stored data. As a result, it is possible to investigate buyer habits by reading the RFID transponders on the goods.
In besonders sensiblen Bereichen ist zur Vermeidung von uner- wünschtem Auslesen bereits vorgeschlagen worden, die Antenne von solchen RFID-Transpondern durch mechanische Zerstörung zu deaktivieren. Dies ist jedoch oft nicht gewünscht, da Transponder auch wichtige Informationen gespeichert haben, die im sicheren Zustand ausgelesen werden sollen.In particularly sensitive areas, in order to avoid unwanted read-out, it has already been proposed to deactivate the antenna of such RFID transponders by mechanical destruction. However, this is often not desired since transponders have also stored important information that is to be read out in the safe state.
Daher liegt der Erfindung die Aufgabe zugrunde, einen Transponder mit Ausleseschutz und ein zugehöriges Verfahren anzugeben, bei dem ein unerwünschtes Auslesen von Daten vermieden wird.The invention is therefore based on the object of specifying a transponder with readout protection and an associated method in which unwanted reading out of data is avoided.
Die erste Aufgabe wird durch einen Transponder mit den Merkmalen nach Anspruch 1 gelöst. Eine Lösung der zweiten Aufgabe wird durch das Verfahren gemäß Anspruch 6 angegeben. Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.The first object is achieved by a transponder having the features of claim 1. A solution to the second task is indicated by the method according to claim 6. Advantageous developments can be found in the dependent claims.
Im Folgenden wird ein Ausführungsbeispiel der Erfindung be- schrieben, wobei das erfindungsgemäße Verfahren anhand einer Figur näher erläutert wird.In the following, an embodiment of the invention will be described, wherein the inventive method is explained in more detail with reference to a figure.
Transponder sind meist mobile Geräte, die aufgrund eines empfangenen Auslesesignals zur Ausgabe bzw. zum Senden von in ihm gespeicherten Daten aufgefordert werden. Dies trifft auch für RFID- (Radial Frequency Identification) -Transponder zu, die z.B. von einem Schreib-/Lesegerät über Funk ein Auslesesignal empfangen und üblicherweise daraufhin mit der Aussendung von Daten antworten.Transponders are mostly mobile devices that are requested to output or to send data stored in it due to a received read-out signal. This is also true for RFID (Radial Frequency Identification) transponders, e.g. Receive a read-out signal from a read / write device via radio and then usually respond with the transmission of data.
Erfindungsgemäß werden derartige Transponder mit einem Auslesemechanismus versehen, der die Aussendung der Daten erst nach einer dem Empfang des Auslesesignals sich anschließenden PAUSE bewirkt. Durch Setzen eines PAUSE-Flags ist der Ausle- semechanismus aktivierbar, so dass beim Empfang eines Auslesesignals die im Transponder gespeicherten Daten nicht sofort, sondern erst nach einer bestimmten, einstellbaren Zeit ausgelesen werden. Dies kann mittels der dem Fachmann bekannten Mittel erfolgen, z.B. entsprechend der Entladung einer Kapazität, mittels eines Schieberegisters oder z.B. mit einem Zähler mit externem angeregtem Takt mit definierter Länge.According to the invention, such transponders are provided with a read-out mechanism which effects the transmission of the data only after a PAUSE following the reception of the read-out signal. By setting a PAUSE flag, the interpretation mechanism can be activated, so that when a read signal is received, the data stored in the transponder is not read out immediately, but only after a certain, settable time. This can be done by means known to those skilled in the art, e.g. corresponding to the discharge of a capacitance, by means of a shift register or e.g. with a counter with external stimulated clock of defined length.
Die PAUSE-Dauer kann beispielsweise anhand von einem oder mehreren internen und/oder externen Parametern gesteuert wer- den. Zu den internen Parametern gehört das Setzen einesFor example, the PAUSE duration can be controlled by one or more internal and / or external parameters. Internal parameters include setting a
PAUSE-Flags von Personen mit entsprechender Berechtigung und das Einstellen der PAUSE-Dauer über vordefinierte Werte, z.B. unter Einsatz eines PAUSE-Registers . Als externe Parameter können beispielsweise die Feldstärke, die Temperatur, die Luftfeuchtigkeit, Wasser, Sauerstoff, etc. verwendet werden.PAUSE flags of authorized persons and setting the PAUSE duration above predefined values, e.g. using a PAUSE register. For example, field strength, temperature, humidity, water, oxygen, etc. can be used as external parameters.
Das in der Figur dargestellte Ablaufdiagramm zeigt die wesentlichen Schritte des erfindungsgemäßen Verfahrens zum ge- schützten Auslesen von Daten eines Transponders . Erhält der Transponder durch Empfang eines Auslesesignals die Aufforderung zum Auslesen von gespeicherten Daten, wird zunächst abgefragt, ob der Auslesemechanismus im Transponder aktiviert ist. Ist dies nicht der Fall, werden die Daten unmittelbar abgesetzt, andernfalls erfolgt dies nach einer voreinstellbaren PAUSE-Dauer.The flowchart shown in the figure shows the essential steps of the method according to the invention for Protected readout of data of a transponder. Receives the transponder by receiving a read-out signal the request to read out stored data, it is first queried whether the read-out mechanism is activated in the transponder. If this is not the case, the data are immediately discontinued, otherwise this is done after a presettable PAUSE duration.
Die Antwort innerhalb eines Auslesezyklus kann verzögert er- folgen. Nachdem das magnetische Lesefeld angelegt wird antwortet der Transponder erst nach n Sekunden. Die Antwort kann auch erst beim nächsten, übernächsten oder einem späteren Ausleseversuch erfolgen. Bei jedem Versuch wird das Register um eins dekrementiert . The response within a read cycle can be delayed. After the magnetic reading field is applied, the transponder responds only after n seconds. The answer can also be made only at the next, after the next or a later Ausleseversuch. For each attempt, the register is decremented by one.

Claims

Patentansprüche claims
1. Transponder, der nach Empfang eines Auslesesignals in ihm gespeicherte Daten aussendet, gekennzeichnet durch einen Aus- lesemechanismus, der die Aussendung der Daten nach einer dem Empfang des Auslesesignals sich anschließenden PAUSE bewirkt.1. Transponder, which emits data stored in it after receiving a read-out signal, characterized by a read-out mechanism, which causes the transmission of the data after a PAUSE following the reception of the read-out signal.
2. Transponder nach Anspruch 1, dadurch gekennzeichnet, dass der Auslesemechanismus Mittel zur Einstellung der PAUSE-Dauer aufweist.2. Transponder according to claim 1, characterized in that the read-out mechanism comprises means for adjusting the PAUSE duration.
3. Transponder nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Auslesemechanismus deaktivierbar ist.3. Transponder according to claim 1 or 2, characterized in that the read-out mechanism can be deactivated.
4. Transponder nach einem der oben genannten Ansprüche, dadurch gekennzeichnet, dass der Auslesemechanismus ein PAUSE- Register aufweist, das Informationen zum Aktivierungszustand des Auslesemechanismus und/oder zur PAUSE-Dauer enthält.4. Transponder according to one of the above claims, characterized in that the read-out mechanism comprises a PAUSE register containing information on the activation state of the readout mechanism and / or the PAUSE duration.
5. Transponder nach einem der oben genannten Ansprüche, dadurch gekennzeichnet, dass der Transponder als RFID-Trans- ponder ausgeführt ist.5. Transponder according to one of the above claims, characterized in that the transponder is designed as an RFID transponder.
6. Verfahren zum Auslesen von Daten eines Transponders, da- durch gekennzeichnet, dass dieser in ihm gespeicherte Daten nach einer PAUSE aussendet, die sich dem Empfang eines Auslesesignals anschließt.6. A method for reading data from a transponder, characterized in that this data stored in it emits data after a PAUSE, which follows the receipt of a readout signal.
7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die PAUSE-Dauer einstellbar ist.7. The method according to claim 6, characterized in that the PAUSE duration is adjustable.
8. Verfahren nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Einstellung der Parameter über ein PAUSE-Register erfolgt .8. The method according to claim 6 or 7, characterized in that the adjustment of the parameters via a PAUSE register.
9. Verfahren nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die PAUSE durch einen Auslesemechanismus im Transponder bewirkt wird, wobei der Aktivierungszustand des Auslesemechanismus vorgegeben werden kann.9. The method according to any one of claims 6 to 8, characterized in that the PAUSE by a read-out mechanism is effected in the transponder, wherein the activation state of the read-out mechanism can be specified.
10. Verfahren nach einem der Ansprüche 6 bis 9, dadurch ge¬ kennzeichnet, dass der Transponder als RFID-Transponder aus¬ geführt ist. 10. The method according to any one of claims 6 to 9, characterized ge ¬ indicates that the transponder is out as ¬ RFID transponder.
PCT/DE2006/001854 2006-10-20 2006-10-20 Transponder with read protection, and associated method WO2008046364A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/DE2006/001854 WO2008046364A1 (en) 2006-10-20 2006-10-20 Transponder with read protection, and associated method
DE112006003955T DE112006003955A5 (en) 2006-10-20 2006-10-20 Transponder with readout protection and related process

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Application Number Priority Date Filing Date Title
PCT/DE2006/001854 WO2008046364A1 (en) 2006-10-20 2006-10-20 Transponder with read protection, and associated method

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WO2008046364A1 true WO2008046364A1 (en) 2008-04-24
WO2008046364A8 WO2008046364A8 (en) 2009-02-19

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WO (1) WO2008046364A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495496A (en) * 1981-12-15 1985-01-22 Johnson Engineering Corp. Personnel monitoring and locating system
WO1992008148A1 (en) * 1990-11-06 1992-05-14 Westinghouse Electric Corporation Dual mode electronic identification system
EP0709803A2 (en) * 1994-10-28 1996-05-01 Mitsubishi Denki Kabushiki Kaisha Contactless IC card system and communication method thereof
WO1998027441A1 (en) * 1996-12-19 1998-06-25 Micron Communications, Inc. Methods of processing wireless communication, methods of processing radio frequency communication, and related systems
WO2000016289A1 (en) * 1998-09-11 2000-03-23 Motorola Inc. Electrostatic rfid/eas system
US6150921A (en) * 1996-10-17 2000-11-21 Pinpoint Corporation Article tracking system
EP1526474A1 (en) * 2003-10-21 2005-04-27 ATMEL Germany GmbH Method for selecting one or more transponders

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495496A (en) * 1981-12-15 1985-01-22 Johnson Engineering Corp. Personnel monitoring and locating system
WO1992008148A1 (en) * 1990-11-06 1992-05-14 Westinghouse Electric Corporation Dual mode electronic identification system
EP0709803A2 (en) * 1994-10-28 1996-05-01 Mitsubishi Denki Kabushiki Kaisha Contactless IC card system and communication method thereof
US6150921A (en) * 1996-10-17 2000-11-21 Pinpoint Corporation Article tracking system
WO1998027441A1 (en) * 1996-12-19 1998-06-25 Micron Communications, Inc. Methods of processing wireless communication, methods of processing radio frequency communication, and related systems
WO2000016289A1 (en) * 1998-09-11 2000-03-23 Motorola Inc. Electrostatic rfid/eas system
EP1526474A1 (en) * 2003-10-21 2005-04-27 ATMEL Germany GmbH Method for selecting one or more transponders

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Publication number Publication date
DE112006003955A5 (en) 2009-04-16
WO2008046364A8 (en) 2009-02-19

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