GB8612466D0 - Clearing unlocking key codes - Google Patents

Clearing unlocking key codes

Info

Publication number
GB8612466D0
GB8612466D0 GB868612466A GB8612466A GB8612466D0 GB 8612466 D0 GB8612466 D0 GB 8612466D0 GB 868612466 A GB868612466 A GB 868612466A GB 8612466 A GB8612466 A GB 8612466A GB 8612466 D0 GB8612466 D0 GB 8612466D0
Authority
GB
United Kingdom
Prior art keywords
clearing
code
card
door
unlocking 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.)
Pending
Application number
GB868612466A
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.)
UNISAFE Ltd
Original Assignee
UNISAFE Ltd
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 UNISAFE Ltd filed Critical UNISAFE Ltd
Priority to GB868612466A priority Critical patent/GB8612466D0/en
Publication of GB8612466D0 publication Critical patent/GB8612466D0/en
Priority to DE8787304541T priority patent/DE3778204D1/en
Priority to EP87304541A priority patent/EP0246903B1/en
Priority to AT87304541T priority patent/ATE74993T1/en
Pending 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
    • G07C9/00658—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
    • G07C9/00722—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 magnetic components, e.g. magnets, magnetic strips, metallic inserts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method for clearing unlocking key codes in an electronic locking device in which the unlocking circuit is arranged to be actuated when the code of a magnetic card read by the card reader (1) agrees with an unlocking key code set in the memory (4), the method comprising using a first clearing card which will function only when the door associated with the locking device is open and a second clearing card which will function only when the door is closed, setting the codes of the first and second clearing cards in specified separate addresses in the memory in the code setting mode for setting the codes of the clearing cards in the processing unit (CPU) of the electronic locking device, determining whether the door is open or closed in the normal operation mode of the CPU, and clearing the unlocking key codes only when the code read by the card reader (1) is identical to the code of the first clearing card set in the above-mentioned manner and the door is open, or when the code read by the card reader (1) is identical to the code of the second clearing card set in the above-mentioned manner and the door is closed.
GB868612466A 1986-05-22 1986-05-22 Clearing unlocking key codes Pending GB8612466D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB868612466A GB8612466D0 (en) 1986-05-22 1986-05-22 Clearing unlocking key codes
DE8787304541T DE3778204D1 (en) 1986-05-22 1987-05-21 METHOD FOR CLEARING UNLOCKING CODES IN AN ELECTRONIC LOCKING DEVICE.
EP87304541A EP0246903B1 (en) 1986-05-22 1987-05-21 A method for clearing unlocking key codes in an electronic locking device
AT87304541T ATE74993T1 (en) 1986-05-22 1987-05-21 PROCEDURE FOR ERASING UNLOCKING CODES IN AN ELECTRONIC LOCKING DEVICE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868612466A GB8612466D0 (en) 1986-05-22 1986-05-22 Clearing unlocking key codes

Publications (1)

Publication Number Publication Date
GB8612466D0 true GB8612466D0 (en) 1986-07-02

Family

ID=10598268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB868612466A Pending GB8612466D0 (en) 1986-05-22 1986-05-22 Clearing unlocking key codes

Country Status (4)

Country Link
EP (1) EP0246903B1 (en)
AT (1) ATE74993T1 (en)
DE (1) DE3778204D1 (en)
GB (1) GB8612466D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819954A1 (en) * 1988-06-11 1989-12-14 Schulte Schlagbaum Ag Locking apparatus with an address store

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1456138A (en) * 1974-04-16 1976-11-17 Sabsay D M Security devices and methods of operation thereof
US4411144A (en) * 1976-04-16 1983-10-25 Kadex, Inc. Electronic lock system
US4207555A (en) * 1978-03-03 1980-06-10 The Eastern Company Lock system
SE429884B (en) * 1979-06-05 1983-10-03 Thelin & Co Id Select ELECTRONIC WELDING

Also Published As

Publication number Publication date
DE3778204D1 (en) 1992-05-21
EP0246903A1 (en) 1987-11-25
ATE74993T1 (en) 1992-05-15
EP0246903B1 (en) 1992-04-15

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