EP0796476A1 - Contactless chip card information transmission - Google Patents

Contactless chip card information transmission

Info

Publication number
EP0796476A1
EP0796476A1 EP95938347A EP95938347A EP0796476A1 EP 0796476 A1 EP0796476 A1 EP 0796476A1 EP 95938347 A EP95938347 A EP 95938347A EP 95938347 A EP95938347 A EP 95938347A EP 0796476 A1 EP0796476 A1 EP 0796476A1
Authority
EP
European Patent Office
Prior art keywords
chip card
information
contacts
coil
circuit
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP95938347A
Other languages
German (de)
French (fr)
Inventor
Hans-Diedrich Kreft
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Angewandte Digital Elektronik GmbH
Original Assignee
Angewandte Digital Elektronik GmbH
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 Angewandte Digital Elektronik GmbH filed Critical Angewandte Digital Elektronik GmbH
Publication of EP0796476A1 publication Critical patent/EP0796476A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • 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
    • 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
    • G06K19/07766—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 comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
    • G06K19/07769—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 comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface
    • 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
    • G06K7/10316—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 using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10326—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 using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the very-near field type, e.g. capacitive

Definitions

  • the invention relates to a chip card according to the preamble of patent claim 1.
  • Chip cards (combination chip cards, hybrid cards) are known from DE 39 35 364, which can exchange energy and data with their end devices (read / write devices) both in a contactless manner and in contact. These cards can be used for multiple applications such as telephone cards, health cards, access control cards.
  • the invention has for its object to improve the contactless transmission of information from the card to a card reading station.
  • FIG. 1 schematically shows a coil (4) which is connected with its outputs (10) to the electronic circuit (11).
  • the outputs (13) of the electronic circuit (11) are connected to contact surfaces (2) in the contact field (1) by a dashed line (12).
  • Fig. 2 shows schematically a coil (4) which is connected with its outputs (10) to the electronic circuit (11).
  • a capacitor (3) is connected with its outputs via switches (8) either to contacts (7) or (6).
  • the switch positions of the switch (8) are determined by the electronics (11), which is symbolized by the dashed lines (9).
  • the contacts (6) represent taps on the coil (4).
  • the contacts (7) represent contacts to the electronics (11), which according to the patent serve to electrically charge the capacitor (3).
  • Claim 1 describes the use of the metal contact surfaces (2) of a conventional chip card as antenna elements for transmitting information. If the contact surfaces (2) are used as capacitors in an open resonant circuit, they emit electrical fields parallel to the plane of their surface. Their use as antenna elements thus also represents their use as electrical capacities. If the contact areas (2) are changed in time by an electronic circuit (11) applied voltages, electromagnetic waves are emitted from the contact surfaces. The shorter the times of the voltage change at the contact surfaces (2), the greater the frequency of the emitted electromagnetic wave. When a square wave voltage pulse is applied, the frequencies of the emitted waves are determined by the rise angle (fall angle) of the pulse, the amplitude by the height of the pulse.
  • a wave can thus be sent via the contacts into the surrounding space, which can be detected remotely.
  • the emitted wave can have frequencies which are far enough from the frequencies which are transmitted to the coil (4) by conventional methods, such as are described, for example, in the ISO 10536 standard. Mutual influencing of the waves is thus minimized.
  • the connection of an electronic circuit (11) with the contacts (2) is described.
  • the circuit (11) is located in the chip card and gains energy from the alternating field of the coil (4). Part of this energy is applied by the electronics (11) to one or more of the contacts (2) for the purpose of contactless transmission of information.
  • the energy can be obtained from an oscillating circuit and can thus be supplied to the contacts (2) indefinitely. Short-term voltage pulses can also be applied, as described for claim 1.
  • a capacitor (3) in the card or in a part of the circuit (11) which serves as an energy store and as a discharge capacitor.
  • the capacitor (3) is connected to the contacts of the circuit (11) by means of an electronically controlled switch (8).
  • the circuit (11) there can be, for example, a rectifier circuit which obtains a DC voltage from the AC voltages at the coil outputs (4). This DC voltage can be used to charge the capacitor (3) via the contacts (7) become.
  • the amount of charge (according to the capacitance of the capacitor) can be increased, which is used for the contactless transmission of information.
  • the information can be emitted via the contacts (2) or the coil (4) in an open resonant circuit.
  • the coil (4) acts at its outputs (10) like a voltage transformer for multiplying a voltage which is applied to the contacts (6) and changes over time. This multiplied voltage is used to increase the performance of a contactless transmission.
  • the circuit (11) connects the capacitor (3) to parts of the coil (4) via the contacts (6).
  • the resulting short-circuit current of the capacitor (3) in one part of the coil (4) leads to induced voltages in the other parts of the coil.
  • the ratio of the number of turns in the partial coil with its contacts (6) to the number of turns in the coil (4) determines the increase in the voltage at the coil outputs (10).
  • the voltage applied by the capacitor (3) to the contacts (6) is present at the outputs (10) of the coil (4).
  • the circuit (11) controls the optional connection of the capacitor for recharging via the contacts (7) or for discharging via the contacts (6).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

Various uses of chip card contacts in electronic circuits are disclosed. By using contacts (2) as capacitors or antennas, contacts may be used as contactless transmission means.

Description

Kontaktfreie Informationsübertragung von Chipkarten. Contactless information transfer from chip cards.
Beschreibungdescription
Die Erfindung bezieht sich auf eine Chipkarte gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a chip card according to the preamble of patent claim 1.
Es sind Chipkarten (Kombinationschipkarten, Hybridkarten) aus der DE 39 35 364 bekannt, welche sowohl kontaktfrei als auch kontaktbehaftet mit ihren Endgeräten (Schreib/Lesegeräten) Energie und Daten austauschen können. Diese Karten können für vielfache Anwendungen wie beispiels¬ weise Telefonkarten, Gesundheitskarten, Zutrittskontrollkarten eingesetzt werden.Chip cards (combination chip cards, hybrid cards) are known from DE 39 35 364, which can exchange energy and data with their end devices (read / write devices) both in a contactless manner and in contact. These cards can be used for multiple applications such as telephone cards, health cards, access control cards.
Der Erfindung liegt die Aufgabe zugrunde, das kontaktfreie Übertragen von Informationen von der Karte zu einer Karteniesestation zu verbessern.The invention has for its object to improve the contactless transmission of information from the card to a card reading station.
Karten, wie sie in dem internationalen Standard ISO 10536 beschrieben sind, sollen Informationen nur über sehr kleine Distanzen übertragen kön- nen und zum Betrieb in einen Leser eingeschoben oder auf einen Leser aufgelegt werden. Sie werden Nahbereichskarten bezeichnet. Für Fernbe¬ reichskarten, welche über Entfernungen bis zu 100 cm Informationen über¬ tragen können, ist mit einer Standardisierung (ISO 14 443) im Herbst 1994 begonnen worden. Ein fertiger Standard ist nach allgemeiner Erfahrung in einigen Jahren zu erwarten.Cards as described in the international standard ISO 10536 should only be able to transmit information over very short distances and be inserted into a reader for operation or placed on a reader. They are called short-range maps. Standardization (ISO 14 443) began in autumn 1994 for long-range maps which can transmit information over distances of up to 100 cm. Based on general experience, a finished standard can be expected in a few years.
Vom Markt werden standardisierte Karten nachgefragt, welche in den viel¬ fach installierten Kontaktkartenlesern genutzt werden können und welche zusätzlich das Übertragen von Informationen über Entfernung zulassen. In eine solche Karte könnten über die Kontakte gemäß Patent DE 39 35 364 Informationen geladen werden und über die kontaktfreie Strecke könnten die Informationen ausgelesen werden. Ist eine solche Karte streng nach ISO-Normen aufgebaut, kommt nur eine Nahbereichskarte gemäß ISO 10536 infrage, d.h. die Karte muß auch beim kontaktfreien Auslesen in ei¬ nen Leser gesteckt oder auf den Leser aufgelegt werden. Beim schnellen Identifizieren der Karte an U-Bahnstationen, an Firmeneingängen, etc. würden sich durch die benötigten Zeiten zum Einstecken und Auslesen der Karten Warteschlangen ergeben. Somit besteht die erfinduπgsgemäße Aufgabe, eine Karte streng nach Norm zu konzipieren, welche zusätzlich über größere Entfernungen Informationen überträgt.The market is asking for standardized cards which can be used in the multiply installed contact card readers and which additionally allow the transmission of information about distance. Such a card could be loaded with information via the contacts according to patent DE 39 35 364 and the information could be read out over the contact-free route. If such a card is built strictly according to ISO standards, only a short-range card according to ISO comes 10536 in question, ie the card must also be inserted into a reader or placed on the reader when reading out contact-free. If the card was quickly identified at subway stations, at company entrances, etc., the times required for inserting and reading out the cards would result in queues. Thus, the task according to the invention is to design a card strictly according to the standard, which additionally transmits information over larger distances.
Diese Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale ge- löst.This object is achieved by the features specified in claim 1.
FIG. 1 zeigt schematisch eine Spule (4), welche mit ihren Ausgängen (10) an die elektronische Schaltung (11 ) angeschlossen ist. Die elektronische Schaltung (11 ) ist mit ihren Ausgängen (13) per gestrichelter Linie (12) an Kontaktflächen (2) im Kontaktfeld (1 ) angeschlossen.FIG. 1 schematically shows a coil (4) which is connected with its outputs (10) to the electronic circuit (11). The outputs (13) of the electronic circuit (11) are connected to contact surfaces (2) in the contact field (1) by a dashed line (12).
Fig. 2 zeigt schematisch eine Spule (4), welche mit ihren Ausgängen (10) an die elektronische Schaltung (11 ) angeschlossen ist. Ein Kondensator (3) wird mit seinen Ausgängen über die Schalter (8) wahlweise an die Kontak- te (7) oder (6) angeschlossen. Die Schaltstellungen des Schalters (8) wer¬ den von der Elektronik (11 ) bestimmt, was durch die gestrichelten Linien (9) symbolisiert ist. Die Kontakte (6) stellen Abgriffe an der Spule (4) dar. Die Kontakte (7) stellen Kontakte zur Elektronik (11 ) dar, welche patent¬ gemäß dazu dienen, den Kondensator (3) elektrisch zu laden.Fig. 2 shows schematically a coil (4) which is connected with its outputs (10) to the electronic circuit (11). A capacitor (3) is connected with its outputs via switches (8) either to contacts (7) or (6). The switch positions of the switch (8) are determined by the electronics (11), which is symbolized by the dashed lines (9). The contacts (6) represent taps on the coil (4). The contacts (7) represent contacts to the electronics (11), which according to the patent serve to electrically charge the capacitor (3).
Zu Anspruch 1 :Regarding claim 1:
Anspruch 1 beschreibt die Nutzung der metallenen Kontaktflächen (2) einer herkömmlichen Chipkarte als Antennenelemente zum Übertragen von In¬ formation. Werden die Kontaktflächen (2) als Kapazitäten in einem offenen Schwingkreis genutzt, strahlen sie elektrische Felder parallel zur Ebene ihrer Oberfläche ab. Ihre Nutzung als Antennenelemente stellt somit gleichzeitig eine Nutzung als elektrische Kapazitäten dar. Werden an die Kontaktflächen (2) durch eine elektronische Schaltung (11) zeitlich verän- derliche Spannungen angelegt, werden elektromagnetische Wellen von den Kontaktflächen abgestrahlt. Je kürzer die Zeiten der Spannungsverän¬ derung an den Kontaktflächen (2), desto größer ist die Frequenz der ab¬ gestrahlten elektromagnetischen Welle. Bei Anlegen eines Rechteckspan- nungsimpulses werden die Frequenzen der abgestrahlten Wellen von dem Anstiegswinkel (Abfallwinkel) des Impulses, die Amplitude von der Höhe des Impulses bestimmt. Bei geeignetem Aufbau der Schaltung (11 ) kann somit eine Welle über die Kontakte in den umgebenden Raum gesandt werden, die entfernt nachgewiesen werden kann. Die abgestrahlte Welle kann Frequenzen haben, die weit genug von den Frequenzen entfernt sind, welche zur Spule (4) nach üblichen Methoden übertragen werden, wie sie beispielsweise in dem Standard ISO 10536 beschrieben sind. Somit ist ei¬ ne gegenseitige Beeinflussung der Wellen minimiert.Claim 1 describes the use of the metal contact surfaces (2) of a conventional chip card as antenna elements for transmitting information. If the contact surfaces (2) are used as capacitors in an open resonant circuit, they emit electrical fields parallel to the plane of their surface. Their use as antenna elements thus also represents their use as electrical capacities. If the contact areas (2) are changed in time by an electronic circuit (11) applied voltages, electromagnetic waves are emitted from the contact surfaces. The shorter the times of the voltage change at the contact surfaces (2), the greater the frequency of the emitted electromagnetic wave. When a square wave voltage pulse is applied, the frequencies of the emitted waves are determined by the rise angle (fall angle) of the pulse, the amplitude by the height of the pulse. With a suitable construction of the circuit (11), a wave can thus be sent via the contacts into the surrounding space, which can be detected remotely. The emitted wave can have frequencies which are far enough from the frequencies which are transmitted to the coil (4) by conventional methods, such as are described, for example, in the ISO 10536 standard. Mutual influencing of the waves is thus minimized.
Zu Anspruch 2:Regarding claim 2:
Es wird die Verbindung einer elektronische Schaltung (11 ) mit den Kontak¬ ten (2) beschrieben. Die Schaltung (11) befindet sich in der Chipkarte und gewinnt Energie aus dem Wechselfeld der Spule (4). Ein Teil dieser Ener¬ gie wird von der Elektronik (11 ) an einen oder mehrere der Kontakte (2) zwecks kontaktfreier Übertragung von Information anlegt. Die Energie kann aus einem Schwingkreis bezogen werden und somit zeitlich unbegrenzt den Kontakten (2) zugeführt werden. Es können auch kurzzeitige Span¬ nungspulse angelegt werden, wie es zu Anspruch 1 beschrieben ist.The connection of an electronic circuit (11) with the contacts (2) is described. The circuit (11) is located in the chip card and gains energy from the alternating field of the coil (4). Part of this energy is applied by the electronics (11) to one or more of the contacts (2) for the purpose of contactless transmission of information. The energy can be obtained from an oscillating circuit and can thus be supplied to the contacts (2) indefinitely. Short-term voltage pulses can also be applied, as described for claim 1.
Zu Anspruch 3:Regarding claim 3:
Es wird ein Kondensator (3) in der Karte oder in einem Teil der Schaltung (11) beschrieben, der als Energiespeicher und als Entladungskondensator dient. Zum Speichern von Energie wird der Kondensator (3) per elektro¬ nisch gesteuerter Schalter (8) an die Kontakte der Schaltung (11) ange- schlössen. In der Schaltung (11) kann beispielsweise eine Gleichrichter¬ schaltung vorhanden sein, welche aus den Wechselspannungen an den Spulenausgängen (4) eine Gleichspannung gewinnt. Diese Gleichspan¬ nung kann zum Laden des Kondensators (3) über die Kontakte (7) benutzt werden. Durch die Nutzung eines Kondensators zur Energiespeicherung kann die Ladungsmenge (gemäß der Kapazität des Kondensators) erhöht werden, welche zur kontaktfreien Übertragung von Information genutzt wird. Die Information kann über die Kontakte (2) oder die Spule (4) in ei- nem offenen Schwingkreis abgestrahlt werden.A capacitor (3) in the card or in a part of the circuit (11) is described, which serves as an energy store and as a discharge capacitor. To store energy, the capacitor (3) is connected to the contacts of the circuit (11) by means of an electronically controlled switch (8). In the circuit (11) there can be, for example, a rectifier circuit which obtains a DC voltage from the AC voltages at the coil outputs (4). This DC voltage can be used to charge the capacitor (3) via the contacts (7) become. By using a capacitor for energy storage, the amount of charge (according to the capacitance of the capacitor) can be increased, which is used for the contactless transmission of information. The information can be emitted via the contacts (2) or the coil (4) in an open resonant circuit.
Zu Anspruch 4:Regarding claim 4:
Es wird beschrieben, wie die Spule (4) an ihren Ausgängen (10) wie ein Spannungstransformator zum Vervielfachen einer an den Kontakten (6) an- gelegten, zeitlich veränderlichen Spannung wirkt. Diese vervielfachte Spannung wird zur Erhöhung der Leistungsfähigkeit einer kontaktfreien Übertragung genutzt wird. Die Schaltung (11 ) schließt den Kondensator (3) an Teile der Spule (4) über die Kontakte (6) an. Der dadurch erzeugte Kurzschlußstrom des Kondensators (3) in einem Teil der Spule (4) führt zu induzierten Spannungen in den anderen Teilen der Spule. Das Verhältnis der Anzahl der Windungen in der Teilspule mit ihren Kontakten (6) zu der Anzahl der Windungen in der Spule (4) bestimmt die Erhöhung der Span¬ nung an den Spulenausgängen (10). Die vom Kondensator (3) an den Kontakten (6) angelegte Spannung liegt nach einer Verzögerungszeit ver- größert an den Ausgängen (10) der Spule (4) an. Die Schaltung (11 ) steu¬ ert das wahlweise Verbinden des Kondensators zum Nachladen über die Kontakte (7) oder zum Entladen über die Kontakte (6).It is described how the coil (4) acts at its outputs (10) like a voltage transformer for multiplying a voltage which is applied to the contacts (6) and changes over time. This multiplied voltage is used to increase the performance of a contactless transmission. The circuit (11) connects the capacitor (3) to parts of the coil (4) via the contacts (6). The resulting short-circuit current of the capacitor (3) in one part of the coil (4) leads to induced voltages in the other parts of the coil. The ratio of the number of turns in the partial coil with its contacts (6) to the number of turns in the coil (4) determines the increase in the voltage at the coil outputs (10). After a delay, the voltage applied by the capacitor (3) to the contacts (6) is present at the outputs (10) of the coil (4). The circuit (11) controls the optional connection of the capacitor for recharging via the contacts (7) or for discharging via the contacts (6).
Zu Anspruch 5: Es wird beschrieben, wie die Zeitpunkte des kontaktfreien Übertragens von Informationen von der Chipkarte zu einem Leser bestimmt werden. Die Zeitpunkte sind identisch mit denen, welche standardisierte Chipkarten nach genormtem Verfahren zum kontaktfreien Übertragen von Information von der Karte zum Leser nutzen. Damit ergibt sich der Vorteil, daß eine in der Karte erzeugte kontaktfreie, standardisierte Übertragung von Informa¬ tionen auch gleichzeitig Informationen nach den vorstehenden Ansprüchen erzeugt. Ein Karte gemäß den Ansprüchen kann also in Übereinstimmung mit dem internationalen Standard aufgebaut sein und zusätzlich Informa- tionen gemäß den Patentansprüchen übertragen. Durch die Nutzung des Standards wird auch der Aufbau von Geräten zum Empfangen der kontakt¬ frei übertragenen Information vereinfacht. Regarding claim 5: It is described how the times of the contact-free transmission of information from the chip card to a reader are determined. The times are identical to those which use standardized chip cards according to a standardized method for the contact-free transmission of information from the card to the reader. This has the advantage that a contact-free, standardized transmission of information generated in the card also simultaneously generates information according to the preceding claims. A card according to the claims can therefore be constructed in accordance with the international standard and additional information tion transferred according to the claims. The use of the standard also simplifies the construction of devices for receiving the contact-free transmitted information.

Claims

Ansprüche: Expectations:
1. Chipkarte mit Kontaktflächen und zusätzlichn Spulen zum Empfang von Energie und zum Senden und Empfangen von Informationen, dadurch gekennzeichnet, daß eine oder mehrere der metallenen Kontaktflächen (2) als Antennenele¬ mente zum kontaktfreien Übertragen von Information an einen Leser, und als Kondensatorflächen zur Bildung eines Schwingkreises mit den Spulen zum Senden und Empfangen der informationen genutzt werden.1. Chip card with contact surfaces and additional coils for receiving energy and for sending and receiving information, characterized in that one or more of the metal contact surfaces (2) as antenna elements for contactless transmission of information to a reader, and as capacitor surfaces for Formation of a resonant circuit with the coils for sending and receiving the information can be used.
2. Chipkarte nach Anspruch 1 dadurch gekennzeichnet, daß eine elektronische Schaltung (11 ) in der Karte Energie aus dem Wech¬ selfeld einer Spule (4) gewinnt und einen Teil dieser Energie an einen oder mehrere der Kontakte (2) anlegt.2. Chip card according to claim 1, characterized in that an electronic circuit (11) in the card gains energy from the alternating field of a coil (4) and applies part of this energy to one or more of the contacts (2).
3. Chipkarte nach Anspruch 2, dadurch gekennzeichnet, daß ein Kondensator (3) in der Karte oder in einem Teil der Schaltung (11 ) über einen elektronisch gesteuerten Schalter (8) wahlweise über Kontakte (6) an Abgriffe der Spule (4) zum Entladen, oder an die Schal- tung (11 ) zum Laden angeschlossen werden kann, und daß das wechselweise Anschließen an die Kontakte (6) der Spule (4) dem kontaktfreien Übertragen von Informationen dient.3. Chip card according to claim 2, characterized in that a capacitor (3) in the card or in part of the circuit (11) via an electronically controlled switch (8) optionally via contacts (6) on taps of the coil (4) Discharge, or can be connected to the circuit (11) for charging, and that the alternate connection to the contacts (6) of the coil (4) is used for the contactless transmission of information.
4. Chipkarte nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß die Spule (4) an ihren Ausgängen (10) wie ein Spannungstransformator zum Vervielfachen einer an den Kontakten (6) angelegten, zeitlich ver¬ änderlichen Spannung wirkt, und diese vervielfachte Spannung von der Schaltung (11 ) zur Erhöhung der Leistungsfähigkeit einer kontaktfreien Übertragung genutzt wird. Chipkarte nach einem der vorstehenden Ansprüche, dadurch ge¬ kennzeichnet, daß die Zeitpunkte des kontaktfreien Übertragens von Informationen von der Chipkarte zu dem Leser den Zeitpunkten entsprechen, bei welchen eine standardisierte Chipkarte nach einem genormtem Verfahren Informatio¬ nen kontaktfrei von der Karte zum Leser überträgt. 4. Chip card according to one of claims 2 or 3, characterized in that the coil (4) acts at its outputs (10) as a voltage transformer for multiplying a voltage applied to the contacts (6), time-varying voltage, and multiplied this Voltage from the circuit (11) is used to increase the performance of a contactless transmission. Chip card according to one of the preceding claims, characterized in that the points in time of the contact-free transmission of information from the chip card to the reader correspond to the points in time at which a standardized chip card transmits information in a contact-free manner from the card to the reader.
EP95938347A 1994-12-11 1995-11-23 Contactless chip card information transmission Withdrawn EP0796476A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4443979 1994-12-11
DE4443979A DE4443979C1 (en) 1994-12-11 1994-12-11 Chip card with contact surfaces and data exchange coils
PCT/DE1995/001679 WO1996018973A1 (en) 1994-12-11 1995-11-23 Contactless chip card information transmission

Publications (1)

Publication Number Publication Date
EP0796476A1 true EP0796476A1 (en) 1997-09-24

Family

ID=6535440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95938347A Withdrawn EP0796476A1 (en) 1994-12-11 1995-11-23 Contactless chip card information transmission

Country Status (4)

Country Link
EP (1) EP0796476A1 (en)
AU (1) AU3977495A (en)
DE (2) DE4443979C1 (en)
WO (1) WO1996018973A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19723272A1 (en) * 1996-06-04 1997-12-11 Orga Kartensysteme Gmbh Electronic chip card with microcomputer
DE19637964A1 (en) * 1996-09-18 1998-03-19 Diehl Ident Gmbh Device for inductive high-frequency data exchange
DE19847088A1 (en) * 1998-10-13 2000-05-18 Ksw Microtec Ges Fuer Angewand Flat carrier for semiconductor chips and method for its production
ES2251315B2 (en) * 2004-10-14 2006-10-01 Universidad Politecnica De Madrid LOW FREQUENCY ISSUER-RECEIVER SYSTEM FOR SMART CARDS WITHOUT CONTACT.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3935364C1 (en) * 1989-10-24 1990-08-23 Angewandte Digital Elektronik Gmbh, 2051 Brunstorf, De
NL9101608A (en) * 1991-09-24 1993-04-16 Nedap Nv CHIP CARD WITH REMOTE IDENTIFICATION.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9618973A1 *

Also Published As

Publication number Publication date
DE19581412D2 (en) 1998-02-05
DE4443979C1 (en) 1996-03-07
WO1996018973A1 (en) 1996-06-20
AU3977495A (en) 1996-07-03

Similar Documents

Publication Publication Date Title
EP1376460B1 (en) Chip card
DE19509517C1 (en) Device consisting of at least one card terminal for transmitting energy to a chip card and for exchanging data with the chip card via electromagnetic waves
DE3935364C1 (en)
DE69032657T2 (en) SYSTEM FOR TRANSMITTING AND DETECTING ELECTROMAGNETIC ENERGY
DE69532637T2 (en) System with contactless chip card
DE19705301C1 (en) Device for contactless information and energy transmission
EP0562292A1 (en) Remote transmission contactless chip card
WO1996024112A1 (en) Chips cards for displaying various items of card information
DD269478A5 (en) ELECTRONIC DATA PROCESSING SYSTEM
EP2803143B1 (en) Inductive energy supply unit
CN1383527A (en) Contact-free portable object with one or multiple contact-free display peripheral device
DE3713251A1 (en) DEVICE FOR TRANSMITTING AND STORING ENERGY AND INFORMATION IN A CARD-SHAPED DATA CARRIER
DE102006026495A1 (en) Transponder`s position or location determining method for use in e.g. radio frequency identification system, involves determining mapping signals, and assigning inductive coupling to antenna device by distance or orientation of transponder
DE3880613T2 (en) Method and device for electronically identifying objects moving on a surface.
DE4205827C2 (en) Chip card for contactless, bidirectional transmission of energy and data with a read / write device
DE3336717A1 (en) METHOD AND DEVICE FOR CONTACTLESS, ELECTROMAGNETIC TRANSFERRING OF CONTROL COMMANDS AND DATA
WO2001029753A1 (en) Method for selecting and writing into rfid-transponders
WO1999001844A1 (en) Chip card with at least two coil devices for transferring data and/or energy
DE69423433T2 (en) Remote identification device
WO1997008645A2 (en) Plastic card with one or several chips
DE4443979C1 (en) Chip card with contact surfaces and data exchange coils
EP4099503A1 (en) Rfid / nfc antenna device for reading out and / or communicating with an rfid / nfc tag in an arbitrary three dimensional position or orientation and operating method
EP1357503A1 (en) Transponder with tuned resonant circuit
DE112021001455T5 (en) ELECTRONIC CARD WITH BIOMETRIC AUTHENTICATION FUNCTION
EP1862953B1 (en) Method for contactless data and/or energy transmission between a terminal and at least one transponder

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970709

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20020801

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20030212