EP0874945A4 - Telecommande de systemes electroniques de verrouillage - Google Patents

Telecommande de systemes electroniques de verrouillage

Info

Publication number
EP0874945A4
EP0874945A4 EP96943403A EP96943403A EP0874945A4 EP 0874945 A4 EP0874945 A4 EP 0874945A4 EP 96943403 A EP96943403 A EP 96943403A EP 96943403 A EP96943403 A EP 96943403A EP 0874945 A4 EP0874945 A4 EP 0874945A4
Authority
EP
European Patent Office
Prior art keywords
control
code
lock
electronic lock
electronic
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Withdrawn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
EP96943403A
Other languages
German (de)
English (en)
Other versions
EP0874945A1 (fr
Inventor
Stanley Ernest Pogson
Kenneth Edwin Thomas
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.)
ELECTRONIC LOCKING SYSTEMS Ltd
ELECTRONIC LOCKING SYSTEMS LIM
Original Assignee
ELECTRONIC LOCKING SYSTEMS Ltd
ELECTRONIC LOCKING SYSTEMS LIM
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 ELECTRONIC LOCKING SYSTEMS Ltd, ELECTRONIC LOCKING SYSTEMS LIM filed Critical ELECTRONIC LOCKING SYSTEMS Ltd
Publication of EP0874945A1 publication Critical patent/EP0874945A1/fr
Publication of EP0874945A4 publication Critical patent/EP0874945A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • 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
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/21—Individual registration on entry or exit involving the use of a pass having a variable access code
    • 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
    • G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
    • 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
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • 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
    • G07C9/00674—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 switch-buttons
    • G07C9/0069—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 switch-buttons actuated in a predetermined sequence
    • 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
    • G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
    • 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
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration
    • 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
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G07C2009/00206—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier being hand operated
    • G07C2009/00222—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier being hand operated by more than one push button
    • 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
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves
    • 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
    • G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
    • G07C2009/00825—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed remotely by lines or wireless communication

Definitions

  • This invention relates to the control of electronic locks, and in particular to a method and apparatus for remotely controlling such locks or a system of such locks.
  • Electronically controlled locking systems are in common use, particularly, for example in banking for the control of safes or vaults
  • Bank safes or vaults incorporating electronic locks are generally controlled from a key pad electronically connected to the lock.
  • some systems may include overriding control of the key pad via, for example, a computer operated system which permits interference with control of the lock by the key pad.
  • the key pad may essentially be electronically disengaged from the lock so that entering the usual code will not open the lock.
  • a control unit adapted to control one or more electronic locks, comprising: a communication means adapted to receive radio waves, a decoder having a receiver identification code (RIC), a control means programmed to match a site identification code (SIC), to respond to one or more specified decoded control codes, and electronically connected to one or more electronic locks, said control unit activated by receipt of a transmission code including the RIC and SIC, and when activated said control unit extracts a control code accompanying said transmission code, said control code decoded by the decoder, and if the decoded control code corresponds with one or more of the specified decoded control codes of the control means then said control means produces a control signal to effect an operation on the or each electronic lock.
  • a communication means adapted to receive radio waves
  • a decoder having a receiver identification code (RIC)
  • a control means programmed to match a site identification code (SIC)
  • SIC site identification code
  • control signal may control the power supply to the electronic lock or locks, and may further effect an operation on the or any associated keypad.
  • the communication means may comprise a receiver/ transmitter.
  • control means may be further adapted to monitor security status information relating to the electronic locks(s) and/or associated keypad(s) and/or their environment, and to relay such security status information to the communication means for transmission.
  • a control system adapted to provide remote control of one or more electronic locks, comprising: first communication means; actuating means adapted to enable the entry of a digital data control sequence, comprising a transmission code and a control code, for transmission by the first communication means; and one or more control units, the or each unit comprising a second communication means adapted to receive radio waves, a decoder having a receiver identification code (RIC) common to all units in the system, and control means programmed to match a site identification code (SIC), to respond to one or more specified decoded control codes, and electronically connected to one or more electronic locks and/or their associated keypads, the or each said control unit activated by receipt of transmission from the first communication means of a transmission code including the RIC, such that one or more selected control means recognising its SIC in the transmission code will extract a control code accompanying the transmission code, said control code decoded by the corresponding decoder of selected control means, and if the decoded control code corresponds
  • the actuating means may comprise a standard public switch telephone network telephone set. Alternatively, it may comprise a computer.
  • the first and second communication means may comprise a pager network.
  • the first and second communication means may together comprise a two-way radio communication network.
  • a centralised management system adapted to monitor and provide remote control of one or more electronic locks, comprising: a central control means adapted to receive and process security status information, and to generate or enable the generation of digital data control sequences, comprising transmission codes and control codes; communication means, enabling two-way communication between said central control means and one or more electronic lock controllers; one or more electronic lock controllers, each said controller comprising a decoder having a receiver identification code, (RIC) common to all controllers in the system, and local control means programmed to match a site identification code (SIC), to respond to one or more specified decoded control codes, electronically connected to one or more electronic locks and/or their associated keypads, and adapted to receive and transfer security status information to the central control means via the communication means; and security status monitoring means adapted to supply security status information to the local control means; and wherein one or more electronic locks in the system, and/or their associated keypads, may be controlled remotely and in accordance with security status information, by the transmission
  • a central control means adapted to receive and
  • a method a method of controlling one or more electronic locks remotely, said method comprising: monitoring security status information relating to one or more electronic locks and/or their environment via electronic lock controllers, transferring said security status information to a central control means via communication means, for processing, transmitting a digital data control sequence comprising a transmission code and a control code, said transmission code including a receiver identification code (RIC) and site identification code (SIC), via said communication means, from the central control means to activate one or more electronic lock controllers having an RIC corresponding with that transmitted, selecting electronic lock controllers preprogrammed to match the transmitted SIC, decoding the control code received by the selected controllers, recognising specified decoded control codes in the or each controller and producing a control signal in response to the specified decoded control code, and effecting an operation on the one or more electronic lock(s) and/ or their keypad(s), connected to the controller via the control signal.
  • RIC receiver identification code
  • SIC site identification code
  • the apparatus and method of the present invention are used to remotely control the inbuilt features, including disablement and enablement, of a single or group of electronic locks and/or their associated keypads, if any.
  • Remote control of the locks may be achieved through the use of a wide area or local radio paging-type receiver with the ability to receive transmitted control codes.
  • a two-way receiver/transmitter communication means may be employed.
  • the control codes may disable and enable individual locks, groups of locks, or all locks, within specified groups by interrupting the power source to the locks, and/or may introduce changes in control of keypads associated with each lock, for example by remotely changing the access code or combination.
  • a system of the present invention may comprise a pager network 1 , which may be controlled by local telephone 2 and/or computer 3, one or more paging receivers 4, and associated with the or each receiver 4, a decoder 5, a control means 6 and an electronic lock 7.
  • the pager network 1 may be a wide area pager network as used by the public in transmission and reception of information to remote pager receivers. It may alternatively be a two-way communication system, such as a two-way radio communication network. In the latter case information about the status of each lock and its associated environment (security status information), could be transmitted back to the computer ( Figure 1 ) or centralised dispatcher bureau ( Figure 4).
  • control messages transmitted by the pager network 1 may be actuated either by a standard public switch to telephone network (PSTN) telephone set or by a control system installed on a computer electronically connected to the paging network via a modem link.
  • PSTN public switch to telephone network
  • a digital data control sequence or control message is entered on the key pad of the telephone or entered or generated via the computer.
  • This control message essentially comprises two elements, a transmission code and a control code or codes.
  • the transmission code comprises a Receiver Identification Code (RIC) and a Site Identification Code (SIC), and is structured such that locks may be targeted globally, by group or individually.
  • RIC Receiver Identification Code
  • SIC Site Identification Code
  • the receiver 4 receives a transmission code. If the RIC corresponds with the RIC of the decoder 5 then the decoder 5 is activated and extracts or receives the SIC and control code.
  • the control means 6 is electronically connected to one or more electronic locks and is programmed to match an SIC and to recognise specified control codes contained within the decoded control code. In response to such specified control codes the control means then transmits an appropriate control signal to the electronic lock or locks 7. This control signal will interfere with the power supply to the lock or locks. Essentially the control signal may act on a relay acting on the power supply to the lock or locks; one control code would cause interruption of the power supply and a second code would restore the power supply.
  • control signal produced by the control means 6 may override any time delay features and dual combinations in a lock or locks, but it will not, under these circumstances, open or close the lock. It merely disables or enables the lock or locks, and therefore removes control of the lock from an authorised user.
  • a control means of the present invention may be adapted to recognise a plurality of control codes and may be interconnected with the keypad as well as the lock itself. Each control code would be directed to the control of a particular function of a lock or its associated keypad.
  • the control system of the present invention may, for example, change the access code to a lock or locks, and operate the opening and closing of locks in addition to enabling and disabling the locks.
  • a control means (corresponding with the control means 6 of Figure 1 ) of an electronic locks control system of the present invention may receive information about its lock and/or keypad and/or local environment for feedback to the computer at a remote location, as well as receiving and operating on control instructions from that remote source.
  • control means may be connected to an existing site alarm panel in a building.
  • site alarm panels are generally connected by a telecommunication network to a centralised alarm bureau.
  • Information transmitted from the control means to the site alarm panel could therefore be relayed to the computer at a centralised dispatcher bureau dedicated to the control of locks in a particular electronic locks control system or network.
  • the centralised dispatcher bureau may be a station or office in the centralised alarm bureau, an independent organisation controlling any number of networks of electronic locks control systems, or simply an office or station in the offices of the owner of a particular network. Whatever the location, the centralised dispatcher bureau controls the computer and wide area communications network which transmits messages or codes to the control means.
  • Examples of information which may be received by the centralised dispatcher bureau via the site alarm panel may include: status of the lock, status of the door associated with the lock, "duress status" (i.e. an indication that the keypad has been tampered with or the lock opened without authority) and/or lock and door status of any security enclosure (for example where the controlled lock is on an automatic teller machine or vault itself in a secure enclosure; and if the door to the enclosure is not locked then the lock to the vault or safe may not be opened).
  • status information i.e. an indication that the keypad has been tampered with or the lock opened without authority
  • lock and door status of any security enclosure for example where the controlled lock is on an automatic teller machine or vault itself in a secure enclosure; and if the door to the enclosure is not locked then the lock to the vault or safe may not be opened.
  • security status information i.e. an indication that the keypad has been tampered with or the lock opened without authority
  • the security status information received by the control means may be transmitted back to the computer of the centralised dispatcher bureau without the need for a telecommunication link via a site alarm panel.
  • FIGS 2 and 3 show, by means of flow diagrams, the information received by and transmitted from the control means.
  • the control means acts only to enable or disable its associated lock.
  • the control means may act to enable/disable its lock and may also provide centralised control of the access code or combination.
  • Remote control of the access code or combination to the lock, together with the transfer of information about the status of the keypad to the computer enables a system of the present invention to have a very high level of security by enabling rolling codes to be employed in the keypad, e.g. randomly generated access codes.
  • centralised combination control enables prompt and simultaneous changing of access codes or combinations to a lock or group of locks in appropriate circumstances, e.g when an authorised employee leaves a company.
  • each lock has its own receiver or transmitter/ receiver, decoder and control means, and it is the transmission code which enables each lock to be uniquely or collectively controlled.
  • the present control system enables substantially simultaneous remote control of a plurality of electronic locks at one or multiple sites within the scope of the pager or transmitter/receiver network.

Abstract

L'invention porte sur un dispositif de commande (6) électriquement relié à une serrure électronique (7) et conçu pour recevoir des signaux radio par l'intermédiaire d'un système de recherche de personnes (4). Le dispositif de commande (6) est actionné par un code double composé d'un code d'identification du récepteur et d'un code d'identification du site. Un signal de commande est émis lorsque le code de commande correspond à un code de commande reconnu par l'unité de commande (6) et valide ou invalide le clavier de la serrure électronique (7) lui étant relié. Le système de commande comprend des dispositifs de commande dotés d'éléments centraux de commande et de liaison (recherche de personnes, télécommunications ou liaisons radio bidirectionnelles). Les différentes serrures électroniques et systèmes, qui disposent chacun de leur propre unité de commande, peuvent être télécommandés par des codes de commande appropriés. De plus, chacune des unités de commande peut recevoir des informations sur l'état de sécurité des serrures, portes, claviers, et/ou leur environnement, et les transférer au moyen central de commande pour permettre une commande interactive des serrures.
EP96943403A 1995-12-20 1996-12-20 Telecommande de systemes electroniques de verrouillage Withdrawn EP0874945A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NZ28072395 1995-12-20
NZ28072395 1995-12-20
PCT/NZ1996/000147 WO1997022772A1 (fr) 1995-12-20 1996-12-20 Telecommande de systemes electroniques de verrouillage

Publications (2)

Publication Number Publication Date
EP0874945A1 EP0874945A1 (fr) 1998-11-04
EP0874945A4 true EP0874945A4 (fr) 1999-04-28

Family

ID=19925591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96943403A Withdrawn EP0874945A4 (fr) 1995-12-20 1996-12-20 Telecommande de systemes electroniques de verrouillage

Country Status (4)

Country Link
EP (1) EP0874945A4 (fr)
KR (1) KR20000064498A (fr)
AU (1) AU709083B2 (fr)
WO (1) WO1997022772A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE19812210C1 (de) * 1998-03-19 1999-05-06 Siemens Ag Vorrichtung und Verfahren zum Sichern eines Kraftfahrzeugs gegen unberechtigte Benutzung
KR100321853B1 (ko) * 1999-08-19 2002-02-19 정지운 도어록 장치
US7012503B2 (en) 1999-11-30 2006-03-14 Bording Data A/S Electronic key device a system and a method of managing electronic key information
KR100358591B1 (ko) * 2000-02-22 2002-10-25 조인희 자동 도어록
US7212098B1 (en) 2000-09-21 2007-05-01 Myspace, Llc Portable security container
KR100446490B1 (ko) * 2002-01-31 2004-08-30 주식회사 아이레보 도어 제어 시스템
KR20030086034A (ko) * 2002-05-03 2003-11-07 주식회사 에스원 무선경비시스템의 작동 제어가 가능한 디지털 도어락시스템 및 그를 이용한 자가 방범 서비스 방법
DE102006015320B4 (de) * 2006-03-30 2011-06-30 INSYS MICROELECTRONICS GmbH, 93047 Schlosssystem
US8063734B2 (en) 2006-11-06 2011-11-22 Harrow Products Llc Access control system wherein the remote device is automatically updated with a central user list from the central station upon use of the remote device
EP2674922A1 (fr) * 2012-06-11 2013-12-18 Alcatel Lucent Protection au niveau de l'emplacement d'un élément de réseau

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE3927994A1 (de) * 1989-08-24 1991-02-28 Rainer M Lutz Kraftfahrzeug mit zugangssystem
EP0416792A2 (fr) * 1989-09-06 1991-03-13 Incomefirst Limited Système combiné pour mettre en sécurité des entrées
WO1993014571A1 (fr) * 1992-01-09 1993-07-22 Supra Products, Inc. Systeme d'entree de securite a communication radio

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US4727369A (en) * 1984-06-29 1988-02-23 Sielox Systems, Inc. Electronic lock and key system
US5397884A (en) * 1993-10-12 1995-03-14 Saliga; Thomas V. Electronic kay storing time-varying code segments generated by a central computer and operating with synchronized off-line locks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927994A1 (de) * 1989-08-24 1991-02-28 Rainer M Lutz Kraftfahrzeug mit zugangssystem
EP0416792A2 (fr) * 1989-09-06 1991-03-13 Incomefirst Limited Système combiné pour mettre en sécurité des entrées
WO1993014571A1 (fr) * 1992-01-09 1993-07-22 Supra Products, Inc. Systeme d'entree de securite a communication radio

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9722772A1 *

Also Published As

Publication number Publication date
WO1997022772A1 (fr) 1997-06-26
AU1214297A (en) 1997-07-14
KR20000064498A (ko) 2000-11-06
AU709083B2 (en) 1999-08-19
EP0874945A1 (fr) 1998-11-04

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