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GB1456138A - Security devices and methods of operation thereof - Google Patents

Security devices and methods of operation thereof

Info

Publication number
GB1456138A
GB1456138A GB1664974A GB1664974A GB1456138A GB 1456138 A GB1456138 A GB 1456138A GB 1664974 A GB1664974 A GB 1664974A GB 1664974 A GB1664974 A GB 1664974A GB 1456138 A GB1456138 A GB 1456138A
Authority
GB
United Kingdom
Prior art keywords
key
lock
new
memory
entered
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
GB1664974A
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.)
Sabsay D M
Original Assignee
Sabsay D M
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 Sabsay D M filed Critical Sabsay D M
Priority to GB1664974A priority Critical patent/GB1456138A/en
Publication of GB1456138A publication Critical patent/GB1456138A/en
Expired 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
    • E05B49/002—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
    • E05B49/006—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating opto-electronic devices
    • 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
    • G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
    • G07C9/00904—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses for hotels, motels, office buildings or the like
    • 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
    • G07C9/215—Individual registration on entry or exit involving the use of a pass the system having a variable access-code, e.g. varied as a function of time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

1456138 Locks D M SABSAY 16 April 1974 16649/74 Heading E2A The memory of an electronic lock is automatically reset to a new code number when a key having both the new code and the superseded one is inserted. Each time a key is used, two numbers are entered, a new key number and an "authorisation" number which is the superseded number. If the key number is found to match the combination previously stored in the memory, the lock is opened in the normay way. But if they do not match, a comparison is made between the entered authorisation number and the previously stored combination, and if these numbers correspond, the lock memory is reset to the entered key number. Then the first comparison step is repeated, and the lock is opened. The old code number will now not release the lock. As shown, a key 100 of plastics material has binary numbers encoded thereon at 107 and 108 by means of magnetic spots, coloured ink or punched holes 101. The key also has coded areas 104, 105 whereby it may be inserted either-side-up into a key reader 114 provided on a door lock 116. If the key number matches the previously stored combination number, memory and decoding circuits 115 effect unlocking of the lock. In making a new key, a new key number is entered via an input-output device 120 and a previously assigned key number, retrieved by a computer 121, is transmitted to the key producer 124 which encodes the previous key number as the present authorisation number. A randomizer 126, i.e. a high-rate free-running counter, presents to the computer a randomly selected number which is encoded on the key as the new key number. The key may be encoded to give access to a predetermined number of locks.
GB1664974A 1974-04-16 1974-04-16 Security devices and methods of operation thereof Expired GB1456138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1664974A GB1456138A (en) 1974-04-16 1974-04-16 Security devices and methods of operation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1664974A GB1456138A (en) 1974-04-16 1974-04-16 Security devices and methods of operation thereof

Publications (1)

Publication Number Publication Date
GB1456138A true GB1456138A (en) 1976-11-17

Family

ID=10081128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1664974A Expired GB1456138A (en) 1974-04-16 1974-04-16 Security devices and methods of operation thereof

Country Status (1)

Country Link
GB (1) GB1456138A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2370308A1 (en) * 1976-11-08 1978-06-02 Monitron Ind SAFETY DEVICE FOR ORDERING AT LEAST ONE ELECTRONIC LOCK
FR2408023A1 (en) * 1977-11-07 1979-06-01 Kadex Inc ELECTRONIC LOCK FORMING SYSTEM
DE2753381A1 (en) * 1977-11-30 1979-06-07 Sachs Systemtechnik Gmbh MAGNETIC SWITCH LOCK
EP0043270A1 (en) * 1980-06-27 1982-01-06 Omron Tateisi Electronics Co. Unlocking system for use with cards
EP0044630A1 (en) * 1980-07-01 1982-01-27 Scovill Inc Electronic security device
DE3331357A1 (en) * 1982-09-02 1984-03-08 Elkem A/S, Oslo RECORDABLE ELECTRONIC LOCK AND METHOD FOR TRANSCODING THE SAME
EP0068437A3 (en) * 1981-06-24 1984-03-28 Nissan Motor Company, Limited Keyless entry system for an automotive vehicle
FR2556032A1 (en) * 1983-05-21 1985-06-07 Sachs Systemtechnik Gmbh MAGNETIC CODE CLOSURE DEVICE
GB2154649A (en) * 1984-02-07 1985-09-11 Talleres Escoriaza Sa Programmable electronic lock
US4601183A (en) * 1984-06-21 1986-07-22 The United States Of America As Represented By The Secretary Of The Army Pneumatic key lock
WO1987000233A1 (en) * 1985-07-09 1987-01-15 Lowe & Fletcher Limited Method of operating a security device
FR2586447A1 (en) * 1985-08-22 1987-02-27 Genest Leonard MULTI-ACCESS SECURITY DEVICE
GB2184774A (en) * 1983-08-01 1987-07-01 Waitrose Ltd Keyhole-less electronic lock
EP0246903A1 (en) * 1986-05-22 1987-11-25 Unisafe Limited A method for clearing unlocking key codes in an electronic locking device
EP0250101A1 (en) * 1986-05-22 1987-12-23 Unisafe Limited Electronic locking devices
US4868914A (en) * 1987-12-21 1989-09-19 Unisafe Limited Method for clearing unlocking key codes in an electronic locking device
EP1218817A4 (en) * 1999-09-16 2004-08-18 Israel Alon Color based lock and key
GB2520498A (en) * 2013-11-20 2015-05-27 Lowe & Fletcher Ltd Electronic lock

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2370308A1 (en) * 1976-11-08 1978-06-02 Monitron Ind SAFETY DEVICE FOR ORDERING AT LEAST ONE ELECTRONIC LOCK
FR2408023A1 (en) * 1977-11-07 1979-06-01 Kadex Inc ELECTRONIC LOCK FORMING SYSTEM
DE2753381A1 (en) * 1977-11-30 1979-06-07 Sachs Systemtechnik Gmbh MAGNETIC SWITCH LOCK
US4280118A (en) 1977-11-30 1981-07-21 Sachs-Systemtechnik Gmbh Key-controlled electromagnetic operating mechanism for a lock and the like
EP0043270A1 (en) * 1980-06-27 1982-01-06 Omron Tateisi Electronics Co. Unlocking system for use with cards
EP0044630A1 (en) * 1980-07-01 1982-01-27 Scovill Inc Electronic security device
US4396914A (en) 1980-07-01 1983-08-02 Scovill Inc. Electronic security device
EP0068437A3 (en) * 1981-06-24 1984-03-28 Nissan Motor Company, Limited Keyless entry system for an automotive vehicle
US4562343A (en) * 1982-09-02 1985-12-31 Trioving A/S Recodable electronic lock
DE3331357A1 (en) * 1982-09-02 1984-03-08 Elkem A/S, Oslo RECORDABLE ELECTRONIC LOCK AND METHOD FOR TRANSCODING THE SAME
US4562711A (en) * 1983-05-21 1986-01-07 Sachs-Systemtechnik Gmbh Magnetically coded locking system
FR2556032A1 (en) * 1983-05-21 1985-06-07 Sachs Systemtechnik Gmbh MAGNETIC CODE CLOSURE DEVICE
GB2184774A (en) * 1983-08-01 1987-07-01 Waitrose Ltd Keyhole-less electronic lock
GB2154649A (en) * 1984-02-07 1985-09-11 Talleres Escoriaza Sa Programmable electronic lock
US4601183A (en) * 1984-06-21 1986-07-22 The United States Of America As Represented By The Secretary Of The Army Pneumatic key lock
GB2187501A (en) * 1985-07-09 1987-09-09 Lowe & Fletcher Ltd Method of operating a security device
WO1987000233A1 (en) * 1985-07-09 1987-01-15 Lowe & Fletcher Limited Method of operating a security device
US4791280A (en) * 1985-07-09 1988-12-13 Lowe And Fletcher Limited Method of operating a security device, security device and data carriers for use in the method
FR2586447A1 (en) * 1985-08-22 1987-02-27 Genest Leonard MULTI-ACCESS SECURITY DEVICE
EP0246903A1 (en) * 1986-05-22 1987-11-25 Unisafe Limited A method for clearing unlocking key codes in an electronic locking device
EP0250101A1 (en) * 1986-05-22 1987-12-23 Unisafe Limited Electronic locking devices
US4851828A (en) * 1986-05-22 1989-07-25 Unisafe Limited Electronic locking devices
US4868914A (en) * 1987-12-21 1989-09-19 Unisafe Limited Method for clearing unlocking key codes in an electronic locking device
EP1218817A4 (en) * 1999-09-16 2004-08-18 Israel Alon Color based lock and key
GB2520498A (en) * 2013-11-20 2015-05-27 Lowe & Fletcher Ltd Electronic lock

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19940415