EP3496051A1 - Locking device - Google Patents
Locking device Download PDFInfo
- Publication number
- EP3496051A1 EP3496051A1 EP18204696.1A EP18204696A EP3496051A1 EP 3496051 A1 EP3496051 A1 EP 3496051A1 EP 18204696 A EP18204696 A EP 18204696A EP 3496051 A1 EP3496051 A1 EP 3496051A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coils
- rfid transponder
- closing device
- lock cylinder
- locking device
- 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.)
- Granted
Links
- 238000003780 insertion Methods 0.000 claims abstract description 29
- 230000037431 insertion Effects 0.000 claims abstract description 29
- 239000011888 foil Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00944—Details of construction or manufacture
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
- G07C9/00714—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with passive electrical components, e.g. resistor, capacitor, inductor
Definitions
- the invention relates to a locking device with a lock cylinder and with a key, wherein the lock cylinder has an insertion area for the introduction of a key-side RFID transponder, which is readable by a closing cylinder side reader.
- Such a closing device is from the EP 2 708 682 A2 known. It is usually used to determine by means of reading out an information of the RFID transponder, whether an access authorization is present in order to operate the locking device or to release it for an operation.
- the present invention has for its object to be able to provide an energy-saving readability and possibly also writability of the RFID transponder with the simplest possible structure of the locking device.
- the reader for triggering the RFID transponder has two electrically interconnected coils, which are arranged on both sides of an insertion level of the RFID transponder.
- the closing device makes it possible to provide a magnetic flux in the region of the RFID transponder, which is formed at least substantially as the sum of the partial flows of the two coils.
- the RFID transponder is located in a region of maximum magnetic flux and can be optimally read.
- the locking device makes it possible to use a particularly passive RFID transponder, so that the energy required for reading can be provided exclusively by the reading device. Since the reader is arranged on the closing cylinder side, it is much easier to provide a power supply in the area of the lock cylinder than on a key.
- the "reader” also allows a writing of the RFID transponder.
- the term “reader” and not “reader / writer” is used above and below.
- the coils are arranged symmetrically to the insertion plane.
- the two coils are oriented mirror-symmetrically relative to the insertion plane.
- the coils each extend within a part-cylindrical plane, so that they require very little space.
- the diameters of the coils advantageously have the same or substantially the same diameter as the antennas of the RFID transponder of the key.
- the coils can be designed as a so-called flex board.
- the windings each extend around a coil about a coil axis, wherein the coil axes extend in a plane perpendicular or substantially perpendicular to the insertion plane of the RFID transponder.
- a particularly simple construction results when the coils are arranged on a housing of the lock cylinder. This allows a fixed arrangement of the coils. But it is also possible that the coils are arranged on a rotatable relative to the housing core of the lock cylinder. This can be particularly advantageous if the key is not only inserted along an insertion axis in the insertion, but the insertion is provided on the core and the key is rotatable together with the core.
- the coils are arranged within a screen foil surrounding a screen foil interior. This allows magnetic shielding of the coils to the outside and a further reduction in the energy required for reading the RFID transponder energy.
- the screen foil interior is cylindrical.
- a coil is concentrically aligned with the screen foil. This means that in each case one coil extends within a part-cylindrical plane and that this part-cylindrical plane is aligned concentrically with an adjacent section of the screen foil.
- the locking device according to the invention is particularly suitable for lock cylinders, which comprise an operable in dependence on information of the RFID transponder locking device.
- the invention further relates to a lock cylinder as part of a closure device described above and a key as part of a closure device described above.
- An embodiment of an in FIG. 1 illustrated key 10 has a handle ("key crop") 12, from which a key blade 14 protrudes.
- the key blade 14 carries an RFID transponder 16. It is possible that the key blade 14 has a slot that improves the readability of the RFID transponder 16.
- FIG. 2 is the key 10 according to FIG. 1 shown in sections, in an inserted into an insertion region 18 of a lock cylinder 20 state.
- the key 10 and the lock cylinder 20 together form a locking device 22.
- the lock cylinder 20 has a core 26 rotatable relative to a housing 24.
- the insertion region 18 is formed by the core 26.
- the lock cylinder 20 comprises further components known per se, for example a threaded hole 28 for fastening the lock cylinder 20 to an installation location.
- the lock cylinder 20 further includes a locking device 30, which selectively serves to enable or disable a clutch 31, the latter by limiting the axial displacement due to lack of positive engagement between the clutch 31 and cam.
- the blocking device 30 is, for example, part of a mechatronics, which comprises a power supply device 32 (for example button cells), by means of which a drive device of the blocking device can be actuated and which preferably also serves for energizing subsequently explained coils 34, 36.
- the lock cylinder For reading the RFID transponder 16, the lock cylinder comprises a reading unit, which comprises the two coils 34 and 36, cf. FIGS. 3 and 4 ,
- the coils 34 and 36 are electrically connected to each other, but each on both sides of a (for example, vertical or horizontal) insertion level 38 of the RFID transponder 16 is arranged.
- the coils 34 and 36 each extend in part-cylindrical planes.
- the part-cylindrical plane of the coil 34 extends approximately between an 8 o'clock and a short before 12 position and the coil 36 approximately between a short-to-12 and a 4 o'clock position.
- the coils 34, 36 extend with a depth 40 extending parallel to the insertion plane 38 (cf. 3 and 4 ), which - in the insertion position of the key 10, that is to say when the RFID transponder 16 is arranged within the insertion region 18 - preferably overlaps at least in sections with a depth 42 of the RFID transponder 16.
- the windings of the coils 34, 36 extend around respective spool axes 44, 46, these spool axes being in a plane 47 which is perpendicular or substantially perpendicular to the insertion plane 38 of the RFID transponder 16 (cf. Fig. 4 ).
- level 47 corresponds to the plane of the FIG. 3 or the in FIG. 2 Section III shown.
- a shielding film 48 is provided, which encloses a cylindrical Schirmfolieninnenraum 50.
- the insertion region 18 has an elongate cross section, with a main axis and a transverse axis perpendicular thereto.
- the main axis runs parallel to the insertion plane 38.
- the key half 14 has a cross-section complementary to the insertion region 18.
- the RFID transponder 16 is preferably of planar design and extends within a plane corresponding to the insertion plane 38.
- the RFID transponder 16 is disposed between the coils 34 and 36, and seen in the insertion direction of the key 10 at the level of these coils 34 and 36th
- the reading device also has a writing function in order to describe the RFID transponder 16 with information.
- the locking device according to the invention simplifies and improves the readability and possibly also the writability of the RFID transponder 16. Because of the arrangement according to the invention, only very little energy is required and, furthermore, a very compact construction is made possible.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
Die Erfindung betrifft eine Schließeinrichtung (22) mit einem Schließzylinder und mit einem Schlüssel, wobei der Schließzylinder einen Einführbereich (18) zur Einführung eines schlüsselseitigen RFID-Transponders (16) aufweist, der von einem schließzylinderseitigen Lesegerät auslesbar ist, wobei das Lesegerät zum Auslesen des RFID-Transponders (16) zwei elektrisch miteinander verbundene Spulen (34, 36) aufweist, welche beidseits einer Einführebene (38) des RFID-Transponders (16) angeordnet sind.The invention relates to a locking device (22) with a lock cylinder and with a key, wherein the lock cylinder has an insertion region (18) for introducing a key-side RFID transponder (16) which is readable by a closing cylinder side reader, wherein the reading device for reading RFID transponders (16) has two electrically interconnected coils (34, 36), which are arranged on both sides of an insertion plane (38) of the RFID transponder (16).
Description
Die Erfindung betrifft eine Schließeinrichtung mit einem Schließzylinder und mit einem Schlüssel, wobei der Schließzylinder einen Einführbereich zur Einführung eines schlüsselseitigen RFID-Transponders aufweist, der von einem schließzylinderseitigen Lesegerät auslesbar ist.The invention relates to a locking device with a lock cylinder and with a key, wherein the lock cylinder has an insertion area for the introduction of a key-side RFID transponder, which is readable by a closing cylinder side reader.
Eine solche Schließeinrichtung ist aus der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine energiesparende Auslesbarkeit und ggf. auch Beschreibbarkeit des RFID-Transponders bei möglichst einfachem Aufbau der Schließeinrichtung bereitstellen zu können.The present invention has for its object to be able to provide an energy-saving readability and possibly also writability of the RFID transponder with the simplest possible structure of the locking device.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Lesegerät zum Auslösen des RFID-Transponders zwei elektrisch miteinander verbundene Spulen aufweist, welche beidseits einer Einführebene des RFID-Transponders angeordnet sind.This object is achieved in that the reader for triggering the RFID transponder has two electrically interconnected coils, which are arranged on both sides of an insertion level of the RFID transponder.
Die erfindungsgemäße Schließeinrichtung ermöglicht es, im Bereich des RFID-Transponders einen magnetischen Fluss bereitzustellen, welcher zumindest im Wesentlichen als Summe der Teilflüsse der beiden Spulen ausgebildet ist. Somit ist der RFID-Transponder in einem Bereich eines maximalen magnetischen Flusses angeordnet und kann optimal ausgelesen werden.The closing device according to the invention makes it possible to provide a magnetic flux in the region of the RFID transponder, which is formed at least substantially as the sum of the partial flows of the two coils. Thus, the RFID transponder is located in a region of maximum magnetic flux and can be optimally read.
Die erfindungsgemäße Schließeinrichtung ermöglicht es, einen insbesondere passiven RFID-Transponder zu verwenden, sodass die zum Auslesen erforderliche Energie ausschließlich durch das Lesegerät bereitgestellt werden kann. Da das Lesegerät schließzylinderseitig angeordnet ist, kann im Bereich des Schließzylinders sehr viel einfacher eine Energieversorgung bereitgestellt werden als an einem Schlüssel.The locking device according to the invention makes it possible to use a particularly passive RFID transponder, so that the energy required for reading can be provided exclusively by the reading device. Since the reader is arranged on the closing cylinder side, it is much easier to provide a power supply in the area of the lock cylinder than on a key.
Im Rahmen der vorliegenden Erfindung ist es möglich, dass das "Lesegerät" auch ein Beschreiben des RFID-Transponders ermöglicht. Zur Vereinfachung wird vorstehend und nachfolgend dennoch der Begriff "Lesegerät" und nicht "Lese-/Schreibgerät" verwendet.In the context of the present invention, it is possible that the "reader" also allows a writing of the RFID transponder. For simplicity, the term "reader" and not "reader / writer" is used above and below.
Die vorstehend genannten Vorteile können insbesondere erreicht werden, wenn die beiden Spulen gleichsinnig von Strom durchflossen sind, insbesondere die Magnetfelder sich überlagern und/oder wenn die beiden Spulen hinsichtlich der Anzahl ihrer Wicklungen und/oder ihrer Größe identisch sind.The above-mentioned advantages can be achieved, in particular, if the two coils are traversed by current in the same direction, in particular the magnetic fields overlap and / or if the two coils are identical in terms of the number of their windings and / or their size.
Bei einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Spulen zu der Einführebene symmetrisch angeordnet sind. Insbesondere sind die beiden Spulen relativ zu der Einführebene spiegelsymmetrisch orientiert.In an advantageous embodiment of the invention it is provided that the coils are arranged symmetrically to the insertion plane. In particular, the two coils are oriented mirror-symmetrically relative to the insertion plane.
Bevorzugt ist es ferner, wenn sich die Spulen jeweils innerhalb einer teilzylindrischen Ebene erstrecken, sodass sie besonders wenig Bauraum beanspruchen.It is further preferred if the coils each extend within a part-cylindrical plane, so that they require very little space.
Die Durchmesser der Spulen haben vorteilhafterweise denselben oder im Wesentlichen denselben Durchmesser wie die Antennen des RFID-Transponders des Schlüssels.The diameters of the coils advantageously have the same or substantially the same diameter as the antennas of the RFID transponder of the key.
Die Spulen können als sogenannte Flexplatine ausgeführt sein.The coils can be designed as a so-called flex board.
Für eine weitere Verbesserung der Auslesbarkeit ist vorgesehen, dass die Wicklungen jeweils einer Spule um jeweils eine Spulenachse herum verlaufen, wobei die Spulenachsen sich in einer zu der Einführebene des RFID-Transponders senkrechten oder im Wesentlichen senkrechten Ebene erstrecken.For a further improvement of the readability, it is provided that the windings each extend around a coil about a coil axis, wherein the coil axes extend in a plane perpendicular or substantially perpendicular to the insertion plane of the RFID transponder.
Ein besonders einfacher Aufbau ergibt sich, wenn die Spulen an einem Gehäuse des Schließzylinders angeordnet sind. Dies ermöglicht eine ortsfeste Anordnung der Spulen. Es ist aber auch möglich, dass die Spulen an einem relativ zu dem Gehäuse drehbaren Kern des Schließzylinders angeordnet sind. Dies kann insbesondere dann vorteilhaft sein, wenn der Schlüssel nicht nur längs einer Einführachse in den Einführbereich einführbar ist, sondern der Einführbereich an dem Kern vorgesehen ist und der Schlüssel gemeinsam mit dem Kern drehbar ist.A particularly simple construction results when the coils are arranged on a housing of the lock cylinder. This allows a fixed arrangement of the coils. But it is also possible that the coils are arranged on a rotatable relative to the housing core of the lock cylinder. This can be particularly advantageous if the key is not only inserted along an insertion axis in the insertion, but the insertion is provided on the core and the key is rotatable together with the core.
Für eine weitere Verbesserung der Auslesbarkeit kann vorgesehen sein, dass die Spulen innerhalb einer einen Schirmfolieninnenraum umschließenden Schirmfolie angeordnet sind. Dies ermöglicht eine magnetische Abschirmung der Spulen nach außen hin und eine weitere Verringerung des für ein Auslesen des RFID-Transponders erforderlichen Energiebedarfs.For a further improvement of the readability it can be provided that the coils are arranged within a screen foil surrounding a screen foil interior. This allows magnetic shielding of the coils to the outside and a further reduction in the energy required for reading the RFID transponder energy.
Aus Bauraumgründen und für eine bestmögliche Abschirmung ist es bevorzugt, dass der Schirmfolieninnenraum zylindrisch ist.For reasons of space and for the best possible shielding, it is preferred for the screen foil interior to be cylindrical.
Ferner ist es bevorzugt, dass jeweils eine Spule zu der Schirmfolie konzentrisch ausgerichtet ist. Dies bedeutet, dass sich jeweils eine Spule innerhalb einer teilzylindrischen Ebene erstreckt und dass diese teilzylindrische Ebene konzentrisch zu einem benachbarten Abschnitt der Schirmfolie ausgerichtet ist.Furthermore, it is preferred that in each case a coil is concentrically aligned with the screen foil. This means that in each case one coil extends within a part-cylindrical plane and that this part-cylindrical plane is aligned concentrically with an adjacent section of the screen foil.
Die erfindungsgemäße Schließeinrichtung eignet sich insbesondere für Schließzylinder, welche eine in Abhängigkeit einer Information des RFID-Transponders betätigbare Sperreinrichtung umfassen.The locking device according to the invention is particularly suitable for lock cylinders, which comprise an operable in dependence on information of the RFID transponder locking device.
Die Erfindung betrifft ferner einen Schließzylinder als Teil einer vorstehend beschriebenen Schließeinrichtung sowie einen Schlüssel als Teil einer vorstehend beschriebenen Schließeinrichtung.The invention further relates to a lock cylinder as part of a closure device described above and a key as part of a closure device described above.
Weitere Merkmale und Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung und der zeichnerischen Darstellung eines bevorzugten Ausführungsbeispiels.Further features and advantages of the invention are the subject of the following description and the diagrammatic representation of a preferred embodiment.
In den Zeichnungen zeigen:
- Fig. 1
- eine Seitenansicht einer Ausführungsform eines Schlüssels;
- Fig. 2
- eine Seitenansicht längs einer in
Fig. 3 mit II - II bezeichneten Schnittebene einer Ausführungsform einer Schließeinrichtung mit einem Schlüssel gemäßFig. 1 und mit einem Schließzylinder; - Fig. 3
- eine Vorderansicht der Schließeinrichtung gemäß
Fig. 2 längs einer inFig. 2 mit III - III bezeichneten Schnittebene; und - Fig. 4
- einen Ausschnitt einer Draufsicht der Schließeinrichtung.
- Fig. 1
- a side view of an embodiment of a key;
- Fig. 2
- a side view along a in
Fig. 3 II - II designated cutting plane of an embodiment of a locking device with a key according toFig. 1 and with a lock cylinder; - Fig. 3
- a front view of the locking device according to
Fig. 2 along a inFig. 2 sectional plane designated III-III; and - Fig. 4
- a section of a plan view of the locking device.
Eine Ausführungsform eines in
In
Der Schließzylinder 20 weist einen relativ zu einem Gehäuse 24 drehbaren Kern 26 auf. Bei dem in der Zeichnung dargestellten Ausführungsbeispiel ist der Einführbereich 18 von dem Kern 26 ausgebildet.The
Der Schließzylinder 20 umfasst weitere, an sich bekannte Bauteile, beispielsweise ein Gewindeloch 28 zur Befestigung des Schließzylinders 20 an einem Einbauort.The
Der Schließzylinder 20 umfasst ferner eine Sperreinrichtung 30, welche wahlweise zur Freigabe oder Sperrung einer Kupplung 31 dient, letzteres durch eine Begrenzung der axialen Verschiebbarkeit infolge fehlenden Formschlusses zwischen Kupplung 31 und Schließbart. Die Sperreinrichtung 30 ist beispielsweise Teil einer Mechatronik, die eine Stromversorgungseinrichtung 32 (beispielsweise Knopfzellen) umfasst, mittels welcher eine Antriebseinrichtung der Sperreinrichtung betätigbar ist und welche vorzugsweise auch zur Bestromung nachfolgend erläuterter Spulen 34, 36 dient.The
Zum Auslesen des RFID-Transponders 16 umfasst der Schließzylinder eine Leseeinheit, welche die zwei Spulen 34 und 36 umfasst, vgl.
Die Spulen 34 und 36 erstrecken sich jeweils in teilzylindrischen Ebenen. In der nachfolgenden Beschreibung wird angenommen, dass das in
Die Wicklungen der Spulen 34, 36 verlaufen um jeweilige Spulenachsen 44, 46 herum, wobei diese Spulenachsen sich in einer zu der Einführebene 38 des RFID-Transponders 16 senkrechten oder im Wesentlichen senkrechten Ebene 47 (vgl.
Zur Abschirmung der Spulen 34, 36 nach außen hin ist eine Schirmfolie 48 vorgesehen, welche einen zylindrischen Schirmfolieninnenraum 50 umschließt.To shield the
Der Einführbereich 18 weist einen länglichen Querschnitt auf, mit einer Hauptachse und einer hierzu senkrechten Querachse. Die Hauptachse verläuft parallel zu der Einführebene 38. Der Schlüsselhalm 14 weist einen zu dem Einführbereich 18 komplementären Querschnitt auf.The
Der RFID-Transponder 16 ist vorzugsweise flächig ausgebildet und erstreckt sich innerhalb einer der Einführebene 38 entsprechenden Ebene.The
In dem in den Einführbereich 18 eingeführten Zustand des Schlüsselhalms 14 ist der RFID-Transponder 16 zwischen den Spulen 34 und 36 angeordnet, und zwar in Einsteckrichtung des Schlüssels 10 gesehen auf Höhe dieser Spulen 34 und 36.In the inserted into the
Im Rahmen der vorliegenden Erfindung ist es möglich, dass das Lesegerät auch eine Schreibfunktion hat, um den RFID-Transponder 16 mit Informationen zu beschreiben.In the context of the present invention, it is possible that the reading device also has a writing function in order to describe the
Die erfindungsgemäße Schließeinrichtung vereinfacht und verbessert die Auslesbarkeit und ggf. auch die Beschreibbarkeit des RFID-Transponders 16. Aufgrund der erfindungsgemäßen Anordnung wird nur sehr wenig Energie benötigt und ferner eine sehr kompakte Bauweise ermöglicht.The locking device according to the invention simplifies and improves the readability and possibly also the writability of the
Claims (15)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE202017107395.5U DE202017107395U1 (en) | 2017-12-05 | 2017-12-05 | closing device |
Publications (2)
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EP3496051A1 true EP3496051A1 (en) | 2019-06-12 |
EP3496051B1 EP3496051B1 (en) | 2022-02-23 |
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Application Number | Title | Priority Date | Filing Date |
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EP18204696.1A Active EP3496051B1 (en) | 2017-12-05 | 2018-11-06 | Locking device |
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EP (1) | EP3496051B1 (en) |
DE (1) | DE202017107395U1 (en) |
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DE102021201330A1 (en) * | 2021-02-12 | 2022-08-18 | Aug. Winkhaus Gmbh & Co. Kg | Locking device with a lock cylinder and a locking element |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0640734A1 (en) * | 1993-08-31 | 1995-03-01 | Siemens Aktiengesellschaft | Contactless data and/or power transmission system |
EP0645898A2 (en) * | 1993-09-23 | 1995-03-29 | Siemens Aktiengesellschaft | System for contactless transmission of data or power |
US5461386A (en) * | 1994-02-08 | 1995-10-24 | Texas Instruments Incorporated | Inductor/antenna for a recognition system |
US5836187A (en) * | 1994-06-03 | 1998-11-17 | Strattec Security Corporation | Tumberless automobile ignition lock |
US20030169148A1 (en) * | 2002-03-06 | 2003-09-11 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Electronic key system |
DE202014005545U1 (en) * | 2014-07-08 | 2015-10-09 | Bks Gmbh | Electronic locking device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012216109A1 (en) | 2012-09-12 | 2014-03-13 | Aug. Winkhaus Gmbh & Co. Kg | Lock cylinder for an electronic key |
-
2017
- 2017-12-05 DE DE202017107395.5U patent/DE202017107395U1/en active Active
-
2018
- 2018-11-06 EP EP18204696.1A patent/EP3496051B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0640734A1 (en) * | 1993-08-31 | 1995-03-01 | Siemens Aktiengesellschaft | Contactless data and/or power transmission system |
EP0645898A2 (en) * | 1993-09-23 | 1995-03-29 | Siemens Aktiengesellschaft | System for contactless transmission of data or power |
US5461386A (en) * | 1994-02-08 | 1995-10-24 | Texas Instruments Incorporated | Inductor/antenna for a recognition system |
US5836187A (en) * | 1994-06-03 | 1998-11-17 | Strattec Security Corporation | Tumberless automobile ignition lock |
US20030169148A1 (en) * | 2002-03-06 | 2003-09-11 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Electronic key system |
DE202014005545U1 (en) * | 2014-07-08 | 2015-10-09 | Bks Gmbh | Electronic locking device |
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Publication number | Publication date |
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EP3496051B1 (en) | 2022-02-23 |
DE202017107395U1 (en) | 2019-03-06 |
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