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WO2001067229A1 - Clef a numero de serie electronique integre au panneton - Google Patents

Clef a numero de serie electronique integre au panneton Download PDF

Info

Publication number
WO2001067229A1
WO2001067229A1 PCT/US2001/006794 US0106794W WO0167229A1 WO 2001067229 A1 WO2001067229 A1 WO 2001067229A1 US 0106794 W US0106794 W US 0106794W WO 0167229 A1 WO0167229 A1 WO 0167229A1
Authority
WO
WIPO (PCT)
Prior art keywords
key
blade
electronic component
key according
electronic
Prior art date
Application number
PCT/US2001/006794
Other languages
English (en)
Inventor
Peter H. Field
Original Assignee
Medeco Security Locks, Inc.
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 Medeco Security Locks, Inc. filed Critical Medeco Security Locks, Inc.
Priority to AU2001243390A priority Critical patent/AU2001243390A1/en
Publication of WO2001067229A1 publication Critical patent/WO2001067229A1/fr

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
    • G07C9/00944—Details of construction or manufacture
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/001—Locks for use with special keys or a plurality of keys ; keys therefor with key identifying function
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0611—Cylinder locks with electromagnetic control
    • E05B47/0619—Cylinder locks with electromagnetic control by blocking the rotor
    • E05B47/0626—Cylinder locks with electromagnetic control by blocking the rotor radially
    • E05B47/063—Cylinder locks with electromagnetic control by blocking the rotor radially with a rectilinearly moveable blocking element
    • 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
    • G07C2009/00761—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 connected means, e.g. mechanical contacts, plugs, connectors
    • 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

Definitions

  • This invention relates generally to access control systems. Particularly, the invention relates to keys which have combined mechanical and electronic security features .
  • U.S. Patent No. 5,245,329 to Gokcebay discloses a key having electronic data encoded on the uncut bottom edge or blade face of the key.
  • This electronic data can be in the form of a read-only memory providing a serial number, or a memory upon which can be stored identification information regarding the particular authorized keyholder, such as a digital picture, fingerprint, voiceprint, or retinal scan information.
  • the mechanical aspects of the key must be combined with additional input from the keyholder in order to open the lock.
  • U.S. Patent No. 4,789,859 to Clarkson et al discloses a key for an electronic locking system whereby the key has electronically erasable programmable read-only memory (“EEPROM”) located along the uncut bottom edge of the key. The key is placed into a lock whereby multiple electronic connectors along the blade of the key come into contact with corresponding connectors in the lock such that data encoded m the key EEPROM can be read by the lock processor. This then causes an electronic release mechanism to open the lock.
  • U.S. Patent No. 4,593,185 to Patzelt et al discloses a key of design similar to the key disclosed by the Clarkson et al . patent, except that optical bar coding lines have been engraved along the uncut bottom edge of the key. The data coded along the bottom edge of the key is read by a laser as the key is inserted into the lock.
  • U.S. Patent No. 5,003,801 to Stinar et al discloses a key which has an electronically coded circuit within the handle of a key that is hard coded to produce one of 128 different identification signals. Placement of the electronic components within the handle allows the key to be cut on both edges such that it is reversible.
  • the present invention provides an electronic security system which overcomes the problems mentioned above in the form of an improved key combining mechanical and electronic features within the key blade .
  • An embodiment of the invention comprises a key having an electronic component integrated within the key blade such that the placement of the component does not interfere with the engraving of mechanical bittings on the key.
  • Such electronic components are three dimensional components wherein the thickness of the component along two of the three dimensions is substantially less than the thickness of the key blade.
  • the electronic component is a small chip-scale packaged microchip having a read-only memory (“ROM”) encoded with an electronic serial number. This electronic serial number is preferably unique to each key and is readable by a corresponding lock.
  • the electronic component is a small chip-scale packages electronic component having random access memory (“RAM”) or EEPROM which can be programmed to contain user prescribed data.
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • the invention includes the use of a combination electro-mechanical key together with an electro-mechanical lock unit in order to provide advanced security capabilities.
  • Keys according to embodiments of the present invention having unique serial numbers can be individually identified by an appropriate interface means within the lock mechanism. Thus, the use of each key can be individually monitored or controlled as desired.
  • the serial number can be read by the lock processor which then requires additional steps to be performed by the keyholder in order to open the lock.
  • Figures la, lb, and lc are side, bottom, and rear edge perspective drawings, respectively, of a key according to embodiments of the present invention wherein an electronic component is incorporated within the rear edge of the key blade .
  • Figures 2a and 2b are side and bottom perspective drawings, respectively, of a key having bittings engraved in it according to embodiments of the present invention wherein an electronic component is incorporated within the rear edge of the key blade.
  • Figures 3a and 3b are side and bottom perspective drawings, respectively, of a key according to embodiments of the present invention wherein an electronic component is incorporated within a blade face of the key.
  • Figures 4a and 4b are side and bottom perspective drawings, respectively, of a key according to embodiments of the present invention wherein an electronic component is incorporated within the rear neck of the key.
  • FIGS 5a and 5b are side and bottom perspective drawings, respectively, of a key according to embodiments of the present invention wherein an electronic component is incorporated within the front neck of the key.
  • Figures 6a and 6b are side and bottom perspective drawings, respectively, of a double-cut key according to embodiments of the present invention wherein an electronic component is incorporated within the tip of the key blade.
  • Figures 7a and 7b are side and bottom perspective drawings, respectively, of a double-cut key according to embodiments of the present invention wherein an electronic component is incorporated within a face of the key blade.
  • Figure 8 is a schematic diagram of the interaction between a key of the present invention and an electromechanical lock.
  • FIGS la, lb, and lc illustrate an electromechanical key 1 according to a first embodiment of the present invention.
  • the key is generally comprised of an integral key head 2 and key blade 3 wherein the blade 3 is adapted to be inserted into a lock (not shown) .
  • An electronic component 4 is incorporated within the key 1, along the rear edge 6 of the key blade 3.
  • the component 4 comprises an electronic read-only memory ("ROM”) upon which is encoded a serial number unique to each particular key.
  • ROM read-only memory
  • Patents 4,635,455 and 4,732,022 disclose such key cuts having bittings wherein the individual cuts making the bittings are made at an oblique angle with respect to the side faces of the key blade. This cutting mechanism makes the mechanical features of the key more difficult to copy, and increases lock security.
  • the electronic component 4 is integrated within keys of the present invention such that it does not change the appearance or limit the mechanical functionality of the key 1 as compared to a standard mechanical key.
  • the component 4 is formed integral 4a to the key body such that it does not interfere with the engraving of mechanical bittings 5 or grooves 3a on the key, and it is not readily apparent to the eye.
  • Suitable electronic components 4 for accomplishing this result are three dimensional components wherein size of the component along two of its three dimensions is substantially less than the thickness 9 of the key blade 3.
  • the electronic component is a small chip-scale packaged microchip having a read-only memory (“ROM”) encoded with an electronic serial number.
  • ROM read-only memory
  • This electronic serial number is preferably unique to each key, and is readable by an interface means present in a corresponding electro-mechanical lock.
  • a preferred electronic component for use in the present invention is a universal asynchronous receiver/transmitter ("UART") designed to communicate with a microprocessor via a bus mechanism.
  • UART universal asynchronous receiver/transmitter
  • a particularly suitable UART is the model DS2401 electronic chip-mounted serial number manufactured by Dallas Semiconductor.
  • This model of electronic serial number manufactured by Dallas Semiconductor is a preferred electronic component for the present invention because it satisfies numerous criteria.
  • each such chip is laser-etched with a unique 64-bit serial number.
  • each chip measures less than 1.5 x 0.7 x 0.7 millimeters.
  • it can be incorporated within the blade of a typical mechanical key without limiting the space necessary for mechanical features such as bittings and grooves.
  • These chips are so small because they require zero standby power (no battery necessary) and their ROM is designed to communicate via a single data wire.
  • U.S. Patent Nos U.S. Patent Nos .
  • the electronic component 4 can optionally be placed in various positions along on the key 1 while still reserving adequate space for mechanical key features such as grooves 3a or key bittings 5.
  • an electronic component 4 can be embedded within a side face 7 of the key blade 3.
  • the electronic component 4 can be embedded within the rear neck 2a or front neck 2b portions of the key 1 such that the space along the key blade 3 is maximized.
  • the electronic component 4 is placed either along the rear edge 6 or a side face 7 of the key blade 3.
  • Figures 6a and 6b depict another preferred embodiment of the present invention wherein a double- cut or reversible key la having a head 2 and blade 3 is provided with a electronic component 4.
  • the electronic component 4 is formed integral to the key blade 3 such that the space for bittings 5 is not decreased. Due to the bittings 5 and groves 3b which are typically present in keys of this type, and the desire that the key be reversible (i.e., it can be introduced into a corresponding lock in two orientations as opposed to only one orientation) , it is preferable that the electronic component 4 be placed at the tip 8 of the key blade 3.
  • an electronic component can be incorporated into a reversible key la within a face 7 of the key blade 3. Placement of the electronic component 4 shown by figures 7a and 7b still does not interfere with the mechanical key features such as grooves 3b and bittings 5. This orientation, unlike that depicted by figures 6a and 6b, however, does not produce a perfectly symmetrical key. Thus, for the key to be reversible, the corresponding lock would necessarily require interface means adapted such that the electronic component 4 could be accessed regardless of the orientation of the key la within the lock. Alternatively, the component 4 could be provided with dual electronic leads which are incorporated symmetrically into both face of the key blade.
  • an electronic component can be incorporated into a key blade edge having bittings.
  • two or more electronic components, performing identical or different functions, can be incorporated within the key.
  • the invention comprises the use of a combination electro-mechanical key together with an electro-mechanical lock unit in order to provide advanced security capabilities.
  • Keys according to embodiments of the present invention having unique serial numbers as discussed above can be individually identified by an interface means of the lock. Suitable interface means can include an electronic connector, a serial number key reader, and a lock processor.
  • each key of the present invention enables the use of each key to be individually monitored or controlled.
  • the key's unique electronic serial number is read by a key reader within the lock. The serial number is then transmitted to a lock processor which performs a variety of electronic functions.
  • the functions performed by the lock processor upon receiving and identifying the appropriate key serial number can be adapted to a variety of applications.
  • the serial number of each key according to the present invention is unique.
  • individual key use at particular locations can be electronically tracked and logged by the lock processor or by another system in electronic communication with the lock processor.
  • a class of keys can be made wherein each key within the class has a class serial number such that the use of a certain class of keys can be tracked.
  • access can be granted or denied based upon both the key being properly cut to open a mechanical lock mechanism and the serial number being accepted by the lock processor so as to disengage an electronically actuated lock.
  • the lock processor can request appropriate input, based upon the serial number of the key, from the key user before the electronic lock is disengaged.
  • Such input can include various means known in the art for identifying individuals. By way of example, these means may include: the entering a personal identification number on a keypad, a voice or finger print, and a retinal scan.
  • a suitable lock interface means for use with a key of the present invention includes logic and hardware necessary to communicate with the key's electronic component .
  • the key reader of the interface means includes a master UART which couples to the key's slave UART by a connection lead.
  • the master UART initializes and controls the communication between it and the slave over the single-line connection lead.
  • the two UARTs communicate according a single wire protocol to form an electronic network.
  • the master UART is electronically coupled to the lock processor, and thus serves to communicate the serial number encoded on the key's slave UART to the lock processor.
  • a key 101 has an electronic component 104 upon which is coded a unique serial number.
  • the electronic component has a single input/output ("I/O") terminal 102 which is removably coupled to a connection lead 103 when the key 101 is inserted into the corresponding lock 100.
  • the lock 100 has interface means comprising the connection lead 103, a key reader 107, and a lock processor 105.
  • the lock processor can optionally be electronically connected with an electrically-actuated lock 108 (in phantom) or an outside computer network 109.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention porte sur une clef (1) dont le panneton combine une fonction mécanique et une fonction électronique. Un tel composant électronique (4) tridimensionnel et dont l'épaisseur selon deux des trois dimensions est sensiblement moindre que celle de la clef produit un numéro de série propre à chaque clef, et reconnaissable uniquement par une serrure appariée. Dans une autre exécution, les capacités améliorées de sécurité sont assurées par une combinaison électromécanique de verrouillage.
PCT/US2001/006794 2000-03-03 2001-03-02 Clef a numero de serie electronique integre au panneton WO2001067229A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001243390A AU2001243390A1 (en) 2000-03-03 2001-03-02 Key with blade mounted electronic serial number

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51854300A 2000-03-03 2000-03-03
US09/518,543 2000-03-03

Publications (1)

Publication Number Publication Date
WO2001067229A1 true WO2001067229A1 (fr) 2001-09-13

Family

ID=24064392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/006794 WO2001067229A1 (fr) 2000-03-03 2001-03-02 Clef a numero de serie electronique integre au panneton

Country Status (2)

Country Link
AU (1) AU2001243390A1 (fr)
WO (1) WO2001067229A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20308813U1 (de) * 2003-06-05 2004-10-14 Harting Electro-Optics Gmbh & Co. Kg Schlüssel für ein Schließsystem
US7042983B2 (en) 2000-10-19 2006-05-09 Teradyne, Inc. Method and apparatus for bridged tap impact analysis
GB2495321A (en) * 2011-10-07 2013-04-10 Steven John Bane Mechanical lock and key with electrical contacts for data transfer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789859A (en) * 1986-03-21 1988-12-06 Emhart Industries, Inc. Electronic locking system and key therefor
US5003801A (en) * 1987-01-20 1991-04-02 Ford Motor Company Programmable key and improved lock assembly
US5210846A (en) * 1989-05-15 1993-05-11 Dallas Semiconductor Corporation One-wire bus architecture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789859A (en) * 1986-03-21 1988-12-06 Emhart Industries, Inc. Electronic locking system and key therefor
US5003801A (en) * 1987-01-20 1991-04-02 Ford Motor Company Programmable key and improved lock assembly
US5210846A (en) * 1989-05-15 1993-05-11 Dallas Semiconductor Corporation One-wire bus architecture
US5210846B1 (en) * 1989-05-15 1999-06-29 Dallas Semiconductor One-wire bus architecture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7042983B2 (en) 2000-10-19 2006-05-09 Teradyne, Inc. Method and apparatus for bridged tap impact analysis
DE20308813U1 (de) * 2003-06-05 2004-10-14 Harting Electro-Optics Gmbh & Co. Kg Schlüssel für ein Schließsystem
GB2495321A (en) * 2011-10-07 2013-04-10 Steven John Bane Mechanical lock and key with electrical contacts for data transfer

Also Published As

Publication number Publication date
AU2001243390A1 (en) 2001-09-17

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