GB8924341D0 - Security system - Google Patents

Security system

Info

Publication number
GB8924341D0
GB8924341D0 GB898924341A GB8924341A GB8924341D0 GB 8924341 D0 GB8924341 D0 GB 8924341D0 GB 898924341 A GB898924341 A GB 898924341A GB 8924341 A GB8924341 A GB 8924341A GB 8924341 D0 GB8924341 D0 GB 8924341D0
Authority
GB
United Kingdom
Prior art keywords
security system
security
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
GB898924341A
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.)
SOFTWARE CONTROL Ltd
Original Assignee
SOFTWARE CONTROL 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 SOFTWARE CONTROL Ltd filed Critical SOFTWARE CONTROL Ltd
Priority to GB898924341A priority Critical patent/GB8924341D0/en
Publication of GB8924341D0 publication Critical patent/GB8924341D0/en
Priority to ES90311750T priority patent/ES2024401A4/en
Priority to DE199090311750T priority patent/DE426387T1/en
Priority to EP19900311750 priority patent/EP0426387A3/en
Priority to GB9023377A priority patent/GB2237427B/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
    • G07C9/00896—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
    • G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
GB898924341A 1989-10-28 1989-10-28 Security system Pending GB8924341D0 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB898924341A GB8924341D0 (en) 1989-10-28 1989-10-28 Security system
ES90311750T ES2024401A4 (en) 1989-10-28 1990-10-26 SECURITY SYSTEM.
DE199090311750T DE426387T1 (en) 1989-10-28 1990-10-26 SECURITY SYSTEM.
EP19900311750 EP0426387A3 (en) 1989-10-28 1990-10-26 Security system
GB9023377A GB2237427B (en) 1989-10-28 1990-10-26 Security system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898924341A GB8924341D0 (en) 1989-10-28 1989-10-28 Security system

Publications (1)

Publication Number Publication Date
GB8924341D0 true GB8924341D0 (en) 1989-12-13

Family

ID=10665359

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898924341A Pending GB8924341D0 (en) 1989-10-28 1989-10-28 Security system
GB9023377A Expired - Fee Related GB2237427B (en) 1989-10-28 1990-10-26 Security system

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9023377A Expired - Fee Related GB2237427B (en) 1989-10-28 1990-10-26 Security system

Country Status (4)

Country Link
EP (1) EP0426387A3 (en)
DE (1) DE426387T1 (en)
ES (1) ES2024401A4 (en)
GB (2) GB8924341D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4707596A (en) * 1995-03-08 1996-09-23 Keba Gesellschaft M.B.H. & Co. Access control system with an access control device and a housing, and a process for monitoring access authorisation
US6476708B1 (en) 1998-03-20 2002-11-05 Hid Corporation Detection of an RFID device by an RF reader unit operating in a reduced power state
US7782209B2 (en) 2006-03-31 2010-08-24 Assa Abloy Ab Detection signal generator circuit for an RFID reader
US8063746B2 (en) 2006-03-31 2011-11-22 Assa Abloy Ab Transponder detector for an RFID system generating a progression of detection signals
EP2107495B1 (en) 2008-04-01 2012-09-19 Assa Abloy Ab Switched capacitance method for the detection of, and subsequent communication with a wireless transponder device using a single antenna

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2069582A (en) * 1980-02-07 1981-08-26 British Relay Electronics Ltd Door locking system
FR2556764B1 (en) * 1983-12-16 1986-05-16 Lewiner Jacques IMPROVEMENTS TO COMMAND AND CONTROL FACILITIES OF THE DIFFERENT LOCKED LOCKS OF AN ASSEMBLY
EP0239342A3 (en) * 1986-03-21 1988-12-07 Emhart Industries, Inc. Electronic locking systems

Also Published As

Publication number Publication date
GB2237427B (en) 1993-07-07
EP0426387A3 (en) 1991-06-12
DE426387T1 (en) 1992-01-16
GB9023377D0 (en) 1990-12-05
EP0426387A2 (en) 1991-05-08
ES2024401A4 (en) 1992-03-01
GB2237427A (en) 1991-05-01

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