EP0154019B1 - Procédé de codage pour clé électronique - Google Patents

Procédé de codage pour clé électronique Download PDF

Info

Publication number
EP0154019B1
EP0154019B1 EP84115594A EP84115594A EP0154019B1 EP 0154019 B1 EP0154019 B1 EP 0154019B1 EP 84115594 A EP84115594 A EP 84115594A EP 84115594 A EP84115594 A EP 84115594A EP 0154019 B1 EP0154019 B1 EP 0154019B1
Authority
EP
European Patent Office
Prior art keywords
code
receiver
transmitter
reset
key
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.)
Expired
Application number
EP84115594A
Other languages
German (de)
English (en)
Other versions
EP0154019A1 (fr
Inventor
Friedrich Dr. techn./Phys. Dannhäuser
Erwin Dipl.-Ing. Heuwieser (Fh)
Heinz Dipl.-Phys. Preissinger
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0154019A1 publication Critical patent/EP0154019A1/fr
Application granted granted Critical
Publication of EP0154019B1 publication Critical patent/EP0154019B1/fr
Expired legal-status Critical Current

Links

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
    • G07C9/00182—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
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence
    • 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
    • G07C2009/00785—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 light
    • 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
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/06—Involving synchronization or resynchronization between transmitter and receiver; reordering of codes

Definitions

  • the invention relates to a method for code security in an electronic key, in particular for motor vehicles with a built-in central locking system, which consists of a transmitter which emits a coded infrared signal which is received by a receiver matched to the code, the code of Signals at the transmitter and receiver are automatically adjustable, and in which the transmitter sends a reset code after desynchronization or battery change in the transmitter or receiver.
  • Such a method is known from DE-A-3 234 538 and DE-A-3 234 539 (date of disclosure 22.03.84).
  • a number of code numbers are stored in the transmitter and receiver, with a new matching code number being set automatically in the transmitter and receiver after each transmission and reception operation, which can be done continuously or using a random number generator.
  • a reset code is sent in the known method. This opens immediately or after the next key press.
  • the reset code represents a security gap, since unauthorized copying enables an unauthorized user to open the lock with the help of the reset codes.
  • the object of the invention is therefore to develop the method of the type specified in the introduction in such a way that unauthorized opening is prevented with the aid of the reset code.
  • This object is achieved in that the reset code releases a lock controlled by the receiver for opening with a mechanical key.
  • the opening is only prepared by sending the reset code. This happens, for example. by the reset code triggering a control signal which electronically opens the lock. A relay only opens one bolt, after which the second bolt can be opened with the mechanical key. Simultaneously with this "partial" opening of the lock, the reset code synchronizes the transmitter and receiver in a known manner. H. it sets the counter belonging to this key number in the receiver to the value of the counter in the key.
  • the "partial" opening of the lock can be carried out, for example, by the fact that there are two outputs in the receiver, which can either take the state “H” or "L” and are used to distinguish between * release of the mechanical key “and” full opening " With only partial release, only one output is set to “L”, while when fully opened both outputs are "L”.

Landscapes

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

Claims (1)

  1. Procédé de codage de sécurité pour une clé électronique, notamment pour des automobiles à verrouiliage centralisé incorporé, qui est constituée par un émetteur qui émet un signal infrarouge codé reçu par un récepteur accordé sur le code, le code du signal dans l'émetteur et dans le récepteur étant susceptible d'être modifié automatiquement, et selon lequel l'émetteur envoie, après désynchronisation ou changement de batterie dans l'émetteur ou dans le récepteur, un code de remise à l'état initial, le code de remise à l'état initial autorisant une serrure, commandée par le récepteur, à pouvoir être ouverte avec une clé méanique.
EP84115594A 1984-02-29 1984-12-17 Procédé de codage pour clé électronique Expired EP0154019B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3407436 1984-02-29
DE19843407436 DE3407436A1 (de) 1984-02-29 1984-02-29 Verfahren zur code-sicherung bei einem elektronischen schluessel

Publications (2)

Publication Number Publication Date
EP0154019A1 EP0154019A1 (fr) 1985-09-11
EP0154019B1 true EP0154019B1 (fr) 1988-07-20

Family

ID=6229210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115594A Expired EP0154019B1 (fr) 1984-02-29 1984-12-17 Procédé de codage pour clé électronique

Country Status (2)

Country Link
EP (1) EP0154019B1 (fr)
DE (2) DE3407436A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6108326A (en) * 1997-05-08 2000-08-22 Microchip Technology Incorporated Microchips and remote control devices comprising same
US6154544A (en) 1995-05-17 2000-11-28 The Chamberlain Group, Inc. Rolling code security system
US6166650A (en) * 1991-05-29 2000-12-26 Microchip Technology, Inc. Secure self learning system
US6175312B1 (en) 1990-05-29 2001-01-16 Microchip Technology Incorporated Encoder and decoder microchips and remote control devices for secure unidirectional communication
US6690796B1 (en) 1995-05-17 2004-02-10 The Chamberlain Group, Inc. Rolling code security system

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636822C2 (de) * 1986-10-29 1993-12-23 Ruf Kg Wilhelm Elektronische Fernbetätigungseinrichtung, insbesondere für Zentralverriegelungsanlagen von Kraftfahrzeugen
DE4325137A1 (de) * 1993-07-27 1995-02-02 Rbr Computertechnik Gmbh Verfahren zum Betätigen von Schließmechanismen mit Hilfe von Identifikationsmitteln
DE4421496B4 (de) * 1993-10-01 2006-09-07 Marquardt Gmbh Elektronisches Türschließsystem an einem Kraftfahrzeug
US6980655B2 (en) 2000-01-21 2005-12-27 The Chamberlain Group, Inc. Rolling code security system
US9148409B2 (en) 2005-06-30 2015-09-29 The Chamberlain Group, Inc. Method and apparatus to facilitate message transmission and reception using different transmission characteristics
US8422667B2 (en) 2005-01-27 2013-04-16 The Chamberlain Group, Inc. Method and apparatus to facilitate transmission of an encrypted rolling code
US10652743B2 (en) 2017-12-21 2020-05-12 The Chamberlain Group, Inc. Security system for a moveable barrier operator
US11074773B1 (en) 2018-06-27 2021-07-27 The Chamberlain Group, Inc. Network-based control of movable barrier operators for autonomous vehicles
WO2020028502A1 (fr) 2018-08-01 2020-02-06 The Chamberlain Group, Inc. Opérateur de barrière mobile et appariement d'émetteurs sur un réseau
US10997810B2 (en) 2019-05-16 2021-05-04 The Chamberlain Group, Inc. In-vehicle transmitter training

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168972B1 (fr) * 1972-01-28 1977-07-15 Cheops
DE2847730A1 (de) * 1978-11-03 1980-05-14 Sachs Systemtechnik Gmbh Magnetschaltschloss
DE3225754A1 (de) * 1982-07-09 1984-01-12 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Verfahren zur schliesswirksamen wechselwirkung eines schluesselartigen teils mit einem schlossartigen teil

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6175312B1 (en) 1990-05-29 2001-01-16 Microchip Technology Incorporated Encoder and decoder microchips and remote control devices for secure unidirectional communication
US6166650A (en) * 1991-05-29 2000-12-26 Microchip Technology, Inc. Secure self learning system
US6154544A (en) 1995-05-17 2000-11-28 The Chamberlain Group, Inc. Rolling code security system
US6690796B1 (en) 1995-05-17 2004-02-10 The Chamberlain Group, Inc. Rolling code security system
US8194856B2 (en) 1995-05-17 2012-06-05 The Chamberlain Group, Inc. Rolling code security system
US8233625B2 (en) 1995-05-17 2012-07-31 The Chamberlain Group, Inc. Rolling code security system
US8284021B2 (en) 1995-05-17 2012-10-09 The Chamberlain Group, Inc. Rolling code security system
US8633797B2 (en) 1995-05-17 2014-01-21 The Chamberlain Group, Inc. Rolling code security system
US6108326A (en) * 1997-05-08 2000-08-22 Microchip Technology Incorporated Microchips and remote control devices comprising same
US6985472B2 (en) 1997-05-08 2006-01-10 Microchip Technology Incorporated Method of communication using an encoder microchip and a decoder microchip

Also Published As

Publication number Publication date
DE3407436A1 (de) 1985-08-29
EP0154019A1 (fr) 1985-09-11
DE3472814D1 (en) 1988-08-25

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