WO2020002921A1 - Dispositif de sécurité pour système sans clé à distance - Google Patents

Dispositif de sécurité pour système sans clé à distance Download PDF

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Publication number
WO2020002921A1
WO2020002921A1 PCT/GB2019/051818 GB2019051818W WO2020002921A1 WO 2020002921 A1 WO2020002921 A1 WO 2020002921A1 GB 2019051818 W GB2019051818 W GB 2019051818W WO 2020002921 A1 WO2020002921 A1 WO 2020002921A1
Authority
WO
WIPO (PCT)
Prior art keywords
remote keyless
smart key
security device
battery
remote
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.)
Ceased
Application number
PCT/GB2019/051818
Other languages
English (en)
Inventor
Mark NEATH
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2020002921A1 publication Critical patent/WO2020002921A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/40—Features of the power supply for the anti-theft system, e.g. anti-theft batteries, back-up power supply or means to save battery power
    • B60R25/406—Power supply in the remote key
    • 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
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • 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
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/00555—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks comprising means to detect or avoid relay attacks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/41—Jamming having variable characteristics characterized by the control of the jamming activation or deactivation time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength

Definitions

  • the present invention is concerned with a remote keyless system security device. More specifically, the present invention is concerned with a device for preventing unauthorised keyless unlocking and ignition of vehicles fitted with automatic remote keyless entry (ARKE) and remote keyless ignition (RKI).
  • ARKE automatic remote keyless entry
  • RKI remote keyless ignition
  • RKE remote keyless entry
  • RKI remote keyless ignition
  • RKE remote keyless entry
  • MRKE mobile remote keyless entry
  • ARKE automated remote keyless entry
  • the latter system offers convenience to the user, as they merely need to have the user unit about their person, and do not need to search for it in coats, bags etc to unlock the vehicle.
  • the present invention is concerned with ARKE.
  • the vehicle ignition may be started with a button.
  • the button is only effective if the vehicle is able to detect the presence of the user unit. Again, this offers convenience to the user as they do not need to locate the key about their person to start the engine and drive the vehicle.
  • Both of these systems operate by establishing communication between the user unit and the vehicle by an electromagnetic signal. This is typically carried in the radio spectrum, more specifically in the UHF band, and even more specifically in the 300 - 400 MHz band.
  • the signals are often encrypted to prevent duplication by unauthorised sources.
  • the user unit discussed above is typically still referred to as a "smart key" (whether or not is comprises a physical key) and as such the term “smart key” used hereinafter will refer to an electronic user unit whether or not it comprises a physical key.
  • FIG. 1 there is shown a vehicle 10 fitted with ARKE and RKI.
  • a smart key 20 is provided which, when moved within a detection zone 12 surrounding the vehicle 10 will cause the vehicle doors to be unlocked.
  • the vehicle 10 transmits a signal VS, and the smart key KS.
  • a large resonant pick-up coil (vehicle coil 14) is held adjacent to the car within the detection zone 12) which is connected by cable 16 to a similar coil (key coil 18) which is placed as close as possible to the position of the smart key 20.
  • the signal broadcast by the vehicle 10 is picked up by the vehicle coil 14 and relayed to the key coil 18.
  • the transponder in the smart key 20 is energised as if it was close to the car, car / key exchange takes place as normal and the response is "relayed” back to the car 10.
  • the doors are therefore opened (ARKE) and the car will start (RKI).
  • the method is used to artificially close the physical gap between the car and the smart key. As many people keep their smart key close to the front door of the house it is often possible for the key coil to be positioned quite close to them. Such systems may also be used to close the gap between smart keys held in valet stands, or in a bag etc.
  • WO2004114227 discusses a device which provides a means of communication between the key or fob and car which includes a signal which is perceptible to humans. So, for example, sound or light can be used as a signal medium. In this way, the user will know if a relay attack is being carried out.
  • EP0908589 discusses the problem of relay attacks on keyless entry systems.
  • the proposed solution allows the user to deactivate passive entry for a predetermined period of time. They system can also deactivate the passive mode after a predetermined time period, and also automatically disable passive mode for a predetermined period of time after locking the vehicle.
  • a "porter” (better known as a "valet”) mode is also disclosed in which certain areas of the car (e.g. the boot) are not accessible.
  • the key is provided with an alert tone when it receives a signal from the car.
  • US7791457 discloses a system for identifying unauthorised access to a vehicle having a passive / keyless entry system.
  • the device operates by having the car transmit two interrogation signals to the key- the second being at a high amplitude than the first.
  • the key will only open the car when it detects this amplitude difference.
  • US20060044108 is concerned with passive keyless entry, and the threat of relay attack.
  • the patent application discusses the detection of a relay attack by measuring transit time, given that the attack will "slow” the signal (compared to direct communication). It also acknowledges that transit time is not useful for high frequency relays. Instead, the system proposes that a deliberate delay time is built into the system to provide an "additional, adjustable signal propagation delay" which can be detected and verified.
  • a security device for a smart key comprising: an internal power interrupt portion configured to be positioned in the interior of a smart key, the internal power interrupt portion having: a first interior contact; and, a second interior contact; the first and second interior contacts being so configured as to interrupt the electrical current flowing from a smart key battery to a smart key battery contact; an external switch configured to be positioned on the exterior surface of a smart key; and, a body configured to extend from the internal power interrupt portion to the switch; the switch being configured to place the first and second interior contacts in electrical connection to enable electrical current to flow from the smart key battery to the smart key battery contact.
  • the invention allows the power signal to be interrupted and selectively restored to re-enable the remote authorisation signal. Therefore when the user knows the car will not be used (for example at night), the ARKE / RKI can be deactivated which mitigates a relay attack.
  • the body is constructed from a flexible material.
  • the body is constructed from laminated material.
  • the body comprises two layers of electrically conductive material either side of a layer of electrically insulating material.
  • the external switch is bi-stable.
  • the external switch is configured to revert to a normally open condition a predetermined time after activation to a closed condition.
  • the invention also provides a smart key comprising: a battery; a remote keyless authorisation signal transmitter powered by the battery; and, a device according to the first aspect, wherein the internal power interrupt portion is positioned between the battery and an associated contact to selectively interrupt power to the remote keyless authorisation signal transmitter.
  • the body passes from an interior side of the smart key to an exterior side of the smart key, and is flexible so as to conform to an outer surface profile of the smart key.
  • a security device for a vehicle, the vehicle being configured for remote keyless authorisation, the security device comprising: an power interrupt portion having: a first contact; and, a second contact; the first and second interior contacts being so configured as to interrupt the electrical current flowing from a car battery to a vehicle remote keyless authorisation transmitter / receiver; and, a remote controlled switch; the switch being configured to place the first and second contacts in electrical connection to enable electrical current to flow from the car battery to the remote keyless authorisation transmitter / receiver.
  • the switch is configured to be controlled by a remote wireless signal.
  • the invention also provides a vehicle comprising: a battery; a remote keyless authorisation signal transmitter / receiver powered by the battery; and, a device according to the second aspect, wherein the power interrupt portion is positioned between the battery and an associated contact to selectively interrupt power to the remote keyless authorisation signal transmitter.
  • the invention also provides a system comprising: a vehicle as described above; a computer configured to remotely activate the remote controlled switch; wherein the computer is configured to require a security verification before issuing a remote command to activate the switch.
  • the computer is a mobile device; the remote command is issued by an app; and, wherein the mobile device and / or the app require the additional security verification.
  • the additional security verification is biometric.
  • a remote keyless security device comprising a transmitter configured to transmit a jamming signal to jam a remote keyless authorisation signal.
  • a relay attack would be defeated because the jamming signal would inhibit successful communication and authorisation between the vehicle and the smart key.
  • the jamming signal has a plurality of jamming signal frequencies. This allows the device to operate with a number of different vehicle types.
  • the device comprises a receiver configured to detect a remote keyless authorisation signal from a vehicle and / or a smart key, and to transmit the jamming signal in response to such detection.
  • a remote keyless authorisation signal from a vehicle and / or a smart key
  • the device is configured for use as a key fob. Therefore it is preferably less than 10cm in maximum dimension, more preferably less than 5cm.
  • it is suitable for attachment to a keyring.
  • the device may have a control for selective deactivation of the jamming signal. This allows the user to activate keyless entry.
  • the control is configured to deactivate the jamming signal for a predetermined period of time.
  • the user will not leave the device in a state in which a relay attack is possible.
  • the control may be a button.
  • the control may be a switch configured to place the transmitter into persistent "jamming on” and “jamming off” modes.
  • the invention also provides an assembly of a smart key and a remote keyless security device according to the third aspect, in which the smart key is configured to transmit the remote keyless authorisation signal for providing remote keyless entry and / or ignition of a vehicle.
  • the invention also provides a smart key comprising an integrated remote keyless security device according to the third aspect, in which the smart key is configured to transmit the remote keyless authorisation signal for providing remote keyless entry and / or ignition of a vehicle.
  • FIGURE 1 is a schematic of a known car fitted with a remote keyless system
  • FIGURE 2 is a schematic of the car of Figure 1 being accessed by a relaying attack
  • FIGURE 3 is a schematic view of a first embodiment of the present invention.
  • FIGURE 4 is a schematic view of a second embodiment of the present invention.
  • FIGURE 5a is a side view of a smart key
  • FIGURE 5b is a plan view of a smart key
  • FIGURE 5c is a side view of the smart key of Figures 5a and 5b fitted with a device according to the present invention
  • FIGURE 5d is a section view through the device according to the present invention of Figure 5c.
  • FIGURE 6 is a section view through a further device according to the present invention.
  • FIG. 3 there is shown the smart key 20, and attached thereto a jamming device 30 according to the present invention.
  • the jamming device 30 comprises a transponder 32 which is configured to detect communication between the vehicle 10 and smart key 20 and to transmit a jamming signal JS.
  • the transponder 32 is powered by a battery.
  • the jamming device 30 is configured to transmit the jamming signal JS upon detection of communication between the vehicle 10 and the smart key 20.
  • the jamming signal JS is programmed to disrupt successful communication between the vehicle 10 and key 20 with a disruptive datastream.
  • the jamming signal JS is transmitted at a higher power (amplitude) than the key signal KS so as to ensure effective jamming.
  • the jamming device 30 comprises a control in the form of a button 34.
  • the button 34 is connected to the transponder 32, and upon depression will deactivate the transponder for a predetermined period of time. In the present example, the transponder is prevented from transmitting the jamming signal JS for 10 seconds (although it will be understood that other times are possible).
  • the jamming signal is provided at all known frequencies for keyless entry systems. In this way, the device will work with all known systems without reprogramming.
  • a smart key 30' has the transponder 32' and button 34' integrated therewith.
  • the key can therefore transmit the jamming signal JS at the same time as the key signal KS to disrupt the latter.
  • the smart key 100 comprises a casing 102 having a first half 104 and a second half 106. Controls 108 are positioned on the outside of the smart key 100. It will be understood that the smart key is ARKE and / or RKI enabled.
  • the smart key 100 comprises a battery 110.
  • a controller 112 is provided which is configured to control an antenna 114 which transmits and receives the necessary signals 116 for ARKE and / or RKI.
  • the controller 112 and antenna 114 are powered by the battery 110 via a first terminal 118 and a second terminal 120.
  • the battery shown is a button cell battery (commonly used in such applications).
  • the terminals 118, 120 are on either side of the battery 110. Both terminals need to be in electrical contact with the battery for the smart key 100 to function and for the signals 116 to be transmitted and received.
  • a power interrupt device 122 according to the present invention is shown in Figure 5d.
  • the device 122 comprises a body 124 and a switch 126.
  • the body 124 is a generally flexible, elongate strip of laminated material.
  • An internal, electrically insulating strip of Kapton tape 128 is between two opposing strips of conductive copper tape portions 130a, 130b.
  • the body 124 has an internal end 132 and an external end 134. At the external end, the copper tape portions 130a, 130b are joined at an end portion 130c i.e. the tape is wrapped around the end of the Kapton).
  • the copper tape portion 130a defines a gap 136.
  • the gap 136 is bridged by the switch 126.
  • the switch 126 is a normally open / normally off manual microswitch which upon activation allows current to cross the gap 136. Therefore activation of the switch can place the two portions of copper tape 130a, 130b into electrical contact proximate the internal end 132.
  • the body 124 is coated in an insulating material 138 for a portion of its length.
  • the device 122 can be installed by opening the smart key 100 and placing the internal end 132 between the battery 110 and terminal 120. Because the body 124 is flat, it sits in this region without modification to the key 100.
  • the body 124 can then be passed between the casing portions 104, 106 to the exterior side of the key 100, and the switch 126 installed on an external surface of the key (Figure 5c).
  • the insulative layer 128 interrupts direct current flow from the battery 110 to the terminal 120.
  • the gap 136 prevents flow through the body through the copper tape portions 130a, b,c. Therefore the key 100 is unable to transmit the signal 116.
  • the user When the user wants to use the key 100, they can activate the switch 126 to bridge the gap 136. This permits power to flow from the battery 110 to the terminal 120 and hence the key 100 can implement ARKE and / or RKI.
  • the switch 126 may only allow connection when held down (i.e. it resiles to an open / off condition). The user would need to keep the switch depressed to open the car and drive away.
  • the switch may be bi-stable. In other words the user must select “on” or “off” and the switch will remain in this state. This is advantageous as the ARKE / RKI process will not be accidentally interrupted. The user would simply move the switch to "off” when the likelihood of a relay attack increases (e.g. overnight).
  • the switch may revert to an "off" condition after a present time. This may be achieved electronically or mechanically (e.g. with friction) as known in the art.
  • a power interrupt device 200 is installed within a vehicle having ARKE / RKI capability.
  • the device 200 is similar to the device 100, inasmuch as it comprises a body 202 and a switch 204.
  • An internal, electrically insulating strip of Kapton tape 206 is between two opposing strips of conductive copper tape portions 208a, 208b.
  • the body 202 has a first end 210 and a second end 212. At the second end, the copper tape portions 208a, 208b are joined at an end portion 208c (i.e. the tape is wrapped around the end of the Kapton).
  • the copper tape portion 208a defines a gap 214.
  • the gap 214 is bridged by the switch 204.
  • the switch 204 is an electronic switch comprising its own internal power supply, processor and wireless antenna.
  • the switch 204 is configured to communicate via wireless signal 216 with a remote computer 218 (for example a cellular phone, tablet, desktop, laptop etc) via a wireless protocol such a Bluetooth (RTM) or Wi-Fi and accept remote instructions for activation and deactivation via the signal 216.
  • a remote computer 218 for example a cellular phone, tablet, desktop, laptop etc
  • RTM Bluetooth
  • Wi-Fi Wireless Fidelity
  • the device 200 is positioned with the portions 208a, 208b between a vehicle battery 218 and associated terminal 220.
  • the device 200 can therefore interrupt the power supply between the vehicle battery 218 and vehicle electronic systems 222, in particular the power feed to the ARKE / RKI components.
  • the switch 204 is normally open to interrupt the power supply between the battery 218 and vehicle electronics 222.
  • a user wishes to activate the ARKE / RKI systems, they can access the device 218 and issue a command via the wireless signal 216 to close the switch 204.
  • the ARKE / RKI systems are then active and the vehicle can be accessed.
  • the invention provides that the signal 216 may be transmitted from an application ("app") installed on the device 218.
  • the device 218 and / or the app may provide an additional layer of security.
  • the device 218 may require a passcode or equivalent to unlock, or biometric information such as a fingerprint or face scan.
  • the app itself may require the same, or additional verification.
  • the switch 204 may be configured to remain closed until instructed otherwise, or alternatively may open after a predetermined period of time.
  • Both devices 122 and 120 are retrofittable to existing keys and vehicles retrospectively. Variations fall within the scope of the present invention.
  • the control may be in the form of an on / off switch instead of a button 34. In this way, the user can choose to leave the device 30 in a persistent state of "jamming on” or “jamming off”.
  • the jamming signal JS may only be transmitted at the frequency of the key signal KS.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un dispositif pour interrompre l'alimentation d'un système d'autorisation à distance d'une clé (100).
PCT/GB2019/051818 2018-06-28 2019-06-27 Dispositif de sécurité pour système sans clé à distance Ceased WO2020002921A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1810614.6 2018-06-28
GB1810614.6A GB2576133A (en) 2018-06-28 2018-06-28 Remote keyless system security device

Publications (1)

Publication Number Publication Date
WO2020002921A1 true WO2020002921A1 (fr) 2020-01-02

Family

ID=63143472

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2019/051818 Ceased WO2020002921A1 (fr) 2018-06-28 2019-06-27 Dispositif de sécurité pour système sans clé à distance

Country Status (2)

Country Link
GB (1) GB2576133A (fr)
WO (1) WO2020002921A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11302132B1 (en) * 2020-07-17 2022-04-12 I.D. Systems, Inc. Wireless authentication systems and methods
US11312329B2 (en) * 2020-08-31 2022-04-26 Toyota Motor North America, Inc. Key fob communication control
US20220130195A1 (en) * 2019-01-18 2022-04-28 Skimsafe Holding Ab Protection device for being provided inside a key fob and corresponding key control system

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EP0908589A2 (fr) 1997-10-10 1999-04-14 Robert Bosch Gmbh Système d'accés
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WO2004114227A1 (fr) 2003-06-25 2004-12-29 Philips Intellectual Property & Standards Gmbh Procede et dispositifs permettant d'augmenter la securite des systemes de transpondeur, en particulier pour l'acces aux automobiles
US20060044108A1 (en) 2002-11-29 2006-03-02 Koninklijke Philips Electronics N.V. Electronic communication system and method of detecting a relay attack thereon
US7791457B2 (en) 2006-12-15 2010-09-07 Lear Corporation Method and apparatus for an anti-theft system against radio relay attack in passive keyless entry/start systems
WO2012017214A1 (fr) * 2010-08-05 2012-02-09 Secured By Design Ltd Dispositif de sécurité pour véhicule
DE102011116209A1 (de) * 2011-10-14 2012-04-05 Daimler Ag Vorrichtung zum Aktivieren und Deaktivieren eines Schließ- und/oder Steuerungssystems, insbesondere für ein Fahrzeug
DE102013209612A1 (de) * 2013-05-23 2014-11-27 Siemens Aktiengesellschaft Verfahren zum Durchführen eines automatischen Öffnens eines Fahrzeugs oder eines Bezahl-Vorgangs sowie zugehörige Vorrichtung
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US7532856B2 (en) * 2006-03-24 2009-05-12 Robert Eugene Stoddard Regenerative jammer with multiple jamming algorithms
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US8841987B1 (en) * 2013-11-22 2014-09-23 Local Motion, Inc. Upgrade kit for an ignition key and methods
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Publication number Priority date Publication date Assignee Title
EP0908589A2 (fr) 1997-10-10 1999-04-14 Robert Bosch Gmbh Système d'accés
US20030222757A1 (en) * 2002-06-03 2003-12-04 Lear Corporation Countermeasure system and method for vehicle passive entry system
US20060044108A1 (en) 2002-11-29 2006-03-02 Koninklijke Philips Electronics N.V. Electronic communication system and method of detecting a relay attack thereon
WO2004114227A1 (fr) 2003-06-25 2004-12-29 Philips Intellectual Property & Standards Gmbh Procede et dispositifs permettant d'augmenter la securite des systemes de transpondeur, en particulier pour l'acces aux automobiles
US7791457B2 (en) 2006-12-15 2010-09-07 Lear Corporation Method and apparatus for an anti-theft system against radio relay attack in passive keyless entry/start systems
WO2012017214A1 (fr) * 2010-08-05 2012-02-09 Secured By Design Ltd Dispositif de sécurité pour véhicule
DE102011116209A1 (de) * 2011-10-14 2012-04-05 Daimler Ag Vorrichtung zum Aktivieren und Deaktivieren eines Schließ- und/oder Steuerungssystems, insbesondere für ein Fahrzeug
DE102013209612A1 (de) * 2013-05-23 2014-11-27 Siemens Aktiengesellschaft Verfahren zum Durchführen eines automatischen Öffnens eines Fahrzeugs oder eines Bezahl-Vorgangs sowie zugehörige Vorrichtung
EP3064404A1 (fr) * 2015-03-02 2016-09-07 Volkswagen Aktiengesellschaft Interruption fonctionnelle d'un systeme d'acces de vehicule

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220130195A1 (en) * 2019-01-18 2022-04-28 Skimsafe Holding Ab Protection device for being provided inside a key fob and corresponding key control system
US11657663B2 (en) * 2019-01-18 2023-05-23 Skimsafe Holding Ab Protection device for being provided inside a key fob and corresponding key control system
US11302132B1 (en) * 2020-07-17 2022-04-12 I.D. Systems, Inc. Wireless authentication systems and methods
US11837041B2 (en) 2020-07-17 2023-12-05 I.D. Systems, Inc. Wireless authentication systems and methods
US12142101B2 (en) 2020-07-17 2024-11-12 I.D. Systems, Inc. Wireless authentication systems and methods
US11312329B2 (en) * 2020-08-31 2022-04-26 Toyota Motor North America, Inc. Key fob communication control

Also Published As

Publication number Publication date
GB2576133A (en) 2020-02-12
GB201810614D0 (en) 2018-08-15

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