WO2004077371A1 - Appareil electrique ou electronique comprenant un circuit de mise sous tension - Google Patents

Appareil electrique ou electronique comprenant un circuit de mise sous tension Download PDF

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Publication number
WO2004077371A1
WO2004077371A1 PCT/DK2004/000120 DK2004000120W WO2004077371A1 WO 2004077371 A1 WO2004077371 A1 WO 2004077371A1 DK 2004000120 W DK2004000120 W DK 2004000120W WO 2004077371 A1 WO2004077371 A1 WO 2004077371A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
verification
unit
switch
circuit
Prior art date
Application number
PCT/DK2004/000120
Other languages
English (en)
Inventor
Leif Henriksen
Ole Thielow
Orla Kristensen
Erik Jochumsen
Original Assignee
Deninvent Aps
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 Deninvent Aps filed Critical Deninvent Aps
Publication of WO2004077371A1 publication Critical patent/WO2004077371A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1409—Mechanical actuation by lifting or attempted removal of hand-portable articles for removal detection of electrical appliances by detecting their physical disconnection from an electrical system, e.g. using a switch incorporated in the plug connector
    • G08B13/1418—Removal detected by failure in electrical connection between the appliance and a control centre, home control panel or a power supply

Definitions

  • Electric or electronic apparatus including a switch-on circuit
  • the present invention relates to techniques for preventing theft of electronic or electric apparatuses, such as a computer, a television set, a video, a DVD player or a DVD recorder, a CD player or a CD recorder, a stereo set, a video projector, a slide projector etc., as the apparatus cannot be switched on without a corresponding enabling unit and therefore cannot be used by a third party without the unit in question. Consequently, the apparatus in question cannot, e.g. after a theft, be able to function, as the apparatus in question cannot be switched on without a permission from the corresponding enabling unit.
  • the enabling unit again comprises a verification unit, which either via a magnetic card or an on-line verification through wireless or wired connection is to receive verification in order to allow the enabling unit to give the apparatus an instruction making it possible for the apparatus to be activated or switched on.
  • the anti-theft protection is carried out in that the electric or electronic apparatus, which comprises a switch-on circuit that only allows the switching on of the apparatus in question when the switch-on circuit receives an activation signal, either by wireless or through a wired connection, is provided with a verification unit built into the apparatus or an external verification unit co-operating with the mentioned switch-on circuit for the supplying of the activation signal to the switch-on circuit in question after execution of the correct verification to allow the switching on of the apparatus, and a data input unit configurated as a magnetic card reader, a chip card reader or a data connection to an external data register for the input of identification data from the magnetic card, the chip card or the external data register and for the transfer of these data to the verification unit, in which the verification of the authenticity of the transferred data is performed in order to cause, by verifying correctly, the generating of the activation signal for the supplying of the signal to the switch-on circuit for the switching on of the electric or electronic apparatus.
  • a verification unit built into the apparatus or an external verification unit co-operating
  • the electric or electronic apparatus comprising a switch-on circuit can consequently only be switched on when the switch-on circuit is supplied with the activation signal, either by wireless or through a wired connection, and the activation signal is generated only provided the verification unit can perform a correct verification of the authenticity of the data transferred from the data input unit.
  • the data input unit itself can either be adapted to read data from a magnetic card, a chip card, an interpreted fingerprint or the reading of another person's characteristics, e.g. the reading of the iris diaphragm, as it is per se already known within the area regarding security.
  • the input unit can, in accordance with alternative embodiments for the apparatus according to the invention, be adapted to receive data from an external registration unit, such as an external database, e.g. a file belonging to a security company or another list of apparatuses which are in use in a lawful way.
  • the securing of apparatuses of this art is consequently, if occasion should arise, conditioned by the apparatus being reported stolen and consequently blacklisted, whereupon the external list will include no information on the apparatus in question, which consequently will not be able to be activated or switched on.
  • the external connection can be established by a computer connection or alternatively through the mains on condition that the apparatus in itself is a mains powered apparatus.
  • the switch-on circuit is adapted to only establish connection to the mains by carrying out a correct verification of the authenticity of the mentioned data and thus completely block the mains supply if the authenticity verification cannot be accomplished.
  • the data input unit and the verification unit can, in accordance with alternative embodiments of the apparatus according to the present invention, be constituted by units built together and thus constitute a single apparatus, which through a wired connection or by wireless communicates with the switch-on circuit in the apparatus according to the invention.
  • the data input unit constitutes a unit, which is separated in relation to the verification unit, which communicates with the verification unit through a wireless or wired connection
  • the transfer of data from the data input unit to the verification unit takes place in an encrypted form, and that the verification unit consequently contains an encryption unit.
  • the actual encryption format can constitute a dedicated or public format, such as a public key encryption system etc.
  • the connecting to the external data register can be established through a data connection, a dedicated signal connection, through the mains or alternatively through a wireless connection, e.g. a radio link.
  • the units characteristic of the present invention i.e.
  • the data input unit and the verification unit can, in accordance with an alternative embodiment, be built into the electric or electronic apparatus itself, whereupon the data input unit built in the electric or electronic apparatus performs the data input in connection with an activation of the switch on/off button of the apparatus.
  • the verification unit may be adapted to only perform the authenticity verification by the activation of a switch-on button on the electric or electronic apparatus, or alternatively be adapted to periodically perform the authenticity verification on the basis of new data input from the input unit such as data transferred from the external data register.
  • This last-mentioned alternative embodiment allows a direct interruption of the electric or electronic apparatus due to updated registration data, and thus prevents an immediately stolen apparatus which is kept switched on during the displacement to new premises from being kept switched on, even after the unauthorised removal, as the apparatus is immediately interrupted after the data contained in the data register shows that the apparatus is no longer allowed to be switched on and activated.
  • the communication between the apparatus with corresponding enabling unit is performed via a data line, e.g. the public internet or through the mains supply connection, as a remote central, such as a securing central or other private, half-public or public institution performs the verification and the authorisation to switch on the apparatus in question, after the codes from the apparatus and the enabling unit are transmitted via the communication line, i.e. the computer connection or the mains supply connection.
  • a data line e.g. the public internet or through the mains supply connection
  • a remote central such as a securing central or other private, half-public or public institution performs the verification and the authorisation to switch on the apparatus in question
  • the communication line i.e. the computer connection or the mains supply connection.
  • the individual mains user's measuring installation comprises an identification chip, i.e. a chip of which the electronic apparatus and the enabling unit sends information concerning the measuring installation unit and thus information on where the verification data are transmitted from.
  • the data base can contain information on which premises the apparatus is intended and has the permission to be used according to the user's specifications, and also, the transmission of mains installation information makes it possible to track possible stolen electric or electronic apparatuses.
  • FIG. 1 the securing technology according to the present invention with offline verification is shown
  • Fig. 2 illustrates an alternative embodiment of the technology according to the present invention with on-line verification
  • Fig. 3 a block diagram is shown for a transmitter module and in Fig. 4, a block diagram for a receiver module is shown.
  • Fig. 1 is an illustration of an apparatus, which constitutes an electric or electronic apparatus, such as a computer, a TV/video apparatus, a DVD/CD player or recorder, a stereo set, a video projector, slide playing equipment etc.
  • the apparatus is shown on the left side of Fig. 1 and is given the reference numeral 10 in its entirety.
  • the apparatus comprises a CPU 12, which through an internal data bus 14 is connected to an external apparatus or receiver 16, which constitutes a verification unit in accordance with the teachings of the invention.
  • This verification unit communicates with the internal data bus 14 of the apparatus 10 through a wired connection or a wireless connection and contains a CPU 18 itself, which is provided with data from a receiving unit 20, which is connected to an antenna 22.
  • the verification unit 16 is again through a wireless connection 24 connected to a data input unit or transmitter 26, which contains a transmitter unit 28 being in connection with an internal CPU 30 and an antenna 23.
  • the CPU 30 communicates through a not shown link with a chip card 34 for the transmission of data.
  • the data transmitted from the chip card are encrypted in the CPU 30 and are transmitted from the transmitter 32 to the verification unit 20 in the receiving unit or the verification unit 16, where a verification of the authenticity of the data transmitted from the chip card is performed in the CPU 18 to allow that a signal is given to the CPU 12 through a wired connection or by a wireless connection indicating that the apparatus can be switched on correctly.
  • the units 16 and 26 the following can be mentioned:
  • the transmitting unit and the receiving unit contain standard diagrams of the codes or sequences in a fixedly defined interval. These codes are transmitted in a way that makes the receiving unit independent of which transmitting unit is supplying the data, so that it is expected from the receiving unit to receive valid data by making entries and calculating in this diagram. It is a standard that is identical for all transmitting/receiving units. This information will permanently be stored on EEProm in both units.
  • the chip card is inserted and the product key is input in the RAM.
  • an entry is made in the transmitting unit's diagram and a code is taken from the diagram which is a fixed code in the EEProm.
  • This will be the encryption key and will contribute to the illegibility of the data transmitted over the radio connection.
  • the encryption is activated with the encryption key as input, and the resulting data are transmitted with the expectation that a receiver will catch the encrypted data.
  • Encrypted data from a receiving unit are received independent of the chip card, which data as a start will be input into the corresponding RAM as the transmitter. Subsequently, the processing will start with an entry in the receiver's EEProm and start by taking the first key from the diagram and decode. In case a key somewhere in this repeating process results in a product key identical to the product key the receiver is in possession of, the verification will have a positive outcome.
  • the IIC bus is chosen as it is standard in the vast majority of apparatuses.
  • FIG. 2 an alternative embodiment of the technology according to the invention with an online verification of the data transferred to the input unit is shown.
  • the embodiment shown in Fig. 2 differs from this first described embodiment in that the unit 16 or the receiver 16 is built into the electric or electronic apparatus itself, and in that the CPU 30 in the input unit or the transmitter unit 26 is in connection with an external data base 36 via a modem connection 38 for the verification of the data input from the chip card or other data bearer in relation to the information and the data contained in the data base 36.
  • a magnetic card instead of a chip card for the input of the unique code of the apparatus, a magnetic card, the power supply system (230V) and bar code reading can be used.
  • the code can also be put into the ID-Box (A) by means of wireless communication, but this solution is not as safe as the others, as you cannot be entirely sure that the code is read into the correct ID-Box (A).
  • bus structures can be used, e.g. PCI and ISA.
  • a modem can be implemented in the ID-Box, which is to call an external database by the input of a new code/SmartCard.
  • the code and the telephone number from which the call is carried out is registered in the data base.
  • the input procedure described in the patent publication is continued only when the above-mentioned has taken place. By these means it is possible to find the stolen apparatuses via the data base.
  • the data base must only contain the code and the telephone number.
  • the data base can be administered by a security service company. If an apparatus is stolen, this is reported to the security service company which administers the data base. The apparatus is marked as stolen in the data base. If/when the apparatus is connected elsewhere, this will be registered in the data base with code and telephone number. Via the telephone number the security service company can find the address on which the stolen apparatus is situated. This can be reported to the police which can then collect the apparatus.
  • the power supply system As an alternative to a modem, the Internet, the power supply system (230V), satellite, wireless wan can be used to contact the data base.
  • the only condition is that you must be able to find the ID-Box (and thus the apparatus) via telephone number, electricity-meter number or ip-number.
  • the solution comprises
  • ID-Box with built-in SmartCard reader, chip and RF transmitter ID-Box with built-in SmartCard reader, chip and RF transmitter.
  • a SmartCard containing a unique encrypted code which is read into the CPU of the ID-Box via the SmartCard reader.
  • the code is stored in the ram- memory of the CPU, which means that the code is deleted when the current is cut.
  • the code is transmitted encrypted via the radio transmitter in the ID-Box to the radio receiver in the apparatus. This is done via radio waves on 433 MHz.
  • the code is input into the ram- memory of the CPU. From here, the code is transported via the apparatus' own HC-bus to the apparatus' own CPU, which will then give 'permission' to start/switch on the apparatus.
  • the code from the SmartCard must be input again. If the apparatus has been provided with the correct code and is started/switched on, and the current is then cut from the ID-Box, the apparatus will continue working. If the apparatus is switched off (the current is cut), it must be provided with the code from the ID-Box to start/be switched on again. This means that a possible thief must take all 3 parts to be able to use the apparatus at all.
  • Fig. 3 illustrates a circuit diagram for a possible embodiment of the transmitting module shown in Fig. 1 and 2 and the thought is that this transmitting module is to be realised with the following components.
  • FIG. 4 illustrates the circuit diagram for a receiving module shown in Fig. 1 and 2, and the thought is that this receiving module is to be realised with the below indicated components:
  • Table 1 illustrates a transmission and encryption form and the thought is that it is to be used in the transmitting and receiving modules shown in Fig. 3 og 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)

Abstract

L'invention concerne un appareil électrique ou électronique comprenant un circuit de mise sous tension permettant uniquement la mise sous tension de l'appareil lorsque le circuit de mise sous tension reçoit un signal d'activation, soit par une connexion sans fil ou par une connexion filaire. Cet appareil est doté d'une unité de vérification intégrée dans l'appareil ou est doté d'une unité de vérification extérieure. Cette unité de vérification coopère avec le circuit de mise sous tension pour fournir le signal d'activation audit circuit de mise sous tension, après l'exécution de la vérification correcte, pour permettre la mise sous tension de l'appareil. L'appareil comprend également une unité d'entrée de données configurée comme un lecteur de carte magnétique, un lecteur de carte à puce ou une connexion de données, vers un registre de données extérieures pour l'entrée de données d'identification à partir de la carte magnétique, de la carte à puce ou d'un registre de données extérieures, et pour le transfert de ces données à l'unité de vérification, la vérification de l'authenticité des données transférées étant effectuée pour provoquer, lors d'une vérification correcte, la génération du signal d'activation pour l'envoi du signal au circuit de mise sous tension, pour la mise sous tension de l'appareil électrique ou électronique.
PCT/DK2004/000120 2003-02-25 2004-02-24 Appareil electrique ou electronique comprenant un circuit de mise sous tension WO2004077371A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200300285 2003-02-25
DKPA200300285 2003-02-25

Publications (1)

Publication Number Publication Date
WO2004077371A1 true WO2004077371A1 (fr) 2004-09-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2434236A (en) * 2005-10-11 2007-07-18 Delta Electronics Inc Keypad verification for activating display device
WO2007121754A1 (fr) 2006-04-26 2007-11-01 Power Secure Development Aps Système pour la sécurité d'appareils électriques

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530431A (en) * 1995-04-11 1996-06-25 Wingard; Peter F. Anti-theft device for protecting electronic equipment
WO1998004967A1 (fr) * 1996-07-25 1998-02-05 Peter David Collins Systeme de protection d'immobilisation pour produits et elements electroniques
WO2000034929A1 (fr) * 1998-12-04 2000-06-15 Norman Frederick Parkin Desactivation d'un dispositif electrique
WO2000057375A1 (fr) * 1999-03-19 2000-09-28 British Telecommunications Public Limited Company Systemes de securite
US6504480B1 (en) * 2001-08-09 2003-01-07 Hewlett-Packard Company Electronic device security

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530431A (en) * 1995-04-11 1996-06-25 Wingard; Peter F. Anti-theft device for protecting electronic equipment
WO1998004967A1 (fr) * 1996-07-25 1998-02-05 Peter David Collins Systeme de protection d'immobilisation pour produits et elements electroniques
WO2000034929A1 (fr) * 1998-12-04 2000-06-15 Norman Frederick Parkin Desactivation d'un dispositif electrique
WO2000057375A1 (fr) * 1999-03-19 2000-09-28 British Telecommunications Public Limited Company Systemes de securite
US6504480B1 (en) * 2001-08-09 2003-01-07 Hewlett-Packard Company Electronic device security

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2434236A (en) * 2005-10-11 2007-07-18 Delta Electronics Inc Keypad verification for activating display device
GB2434236B (en) * 2005-10-11 2007-12-12 Delta Electronics Inc Display device, keypad thereof and method for activating display device
US8085245B2 (en) 2005-10-11 2011-12-27 Delta Electronics, Inc. Display device, keypad thereof and method for activating display device
WO2007121754A1 (fr) 2006-04-26 2007-11-01 Power Secure Development Aps Système pour la sécurité d'appareils électriques

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