GB8423785D0 - Access control system - Google Patents

Access control system

Info

Publication number
GB8423785D0
GB8423785D0 GB848423785A GB8423785A GB8423785D0 GB 8423785 D0 GB8423785 D0 GB 8423785D0 GB 848423785 A GB848423785 A GB 848423785A GB 8423785 A GB8423785 A GB 8423785A GB 8423785 D0 GB8423785 D0 GB 8423785D0
Authority
GB
United Kingdom
Prior art keywords
control system
access control
access
control
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.)
Withdrawn
Application number
GB848423785A
Other versions
GB2164824A (en
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB08423785A priority Critical patent/GB2164824A/en
Publication of GB8423785D0 publication Critical patent/GB8423785D0/en
Publication of GB2164824A publication Critical patent/GB2164824A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G01S13/825—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted with exchange of information between interrogator and responder
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
    • G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
    • G06K7/086—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing passive circuit, e.g. resonant circuit transponders
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/01—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate comprising only passive thin-film or thick-film elements formed on a common insulating substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB08423785A 1984-09-20 1984-09-20 Access control system Withdrawn GB2164824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08423785A GB2164824A (en) 1984-09-20 1984-09-20 Access control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08423785A GB2164824A (en) 1984-09-20 1984-09-20 Access control system

Publications (2)

Publication Number Publication Date
GB8423785D0 true GB8423785D0 (en) 1984-10-24
GB2164824A GB2164824A (en) 1986-03-26

Family

ID=10567007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08423785A Withdrawn GB2164824A (en) 1984-09-20 1984-09-20 Access control system

Country Status (1)

Country Link
GB (1) GB2164824A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK381885A (en) * 1985-08-22 1987-02-23 Electronic Identification Syst IDENTIFICATION SYSTEM
DE19600233A1 (en) * 1996-01-05 1997-07-10 Aeg Identifikationssys Gmbh Transponder interrogator with two coplanar frame aerials
US6094133A (en) * 1998-01-22 2000-07-25 Sensor Technos Co., Ltd. Method of displaying information by using an LC resonance tag
CN100583554C (en) 2003-08-29 2010-01-20 精工爱普生株式会社 Loop antenna device
CN106936225B (en) * 2015-12-31 2020-03-27 中惠创智无线供电技术有限公司 Positioning system and method for wireless charging of electric automobile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016553A (en) * 1975-06-27 1977-04-05 Knogo Corporation Article detection system with near field electromagnetic wave control
US4135184A (en) * 1977-08-31 1979-01-16 Knogo Corporation Electronic theft detection system for monitoring wide passageways
US4243980A (en) * 1978-02-17 1981-01-06 Lichtblau G J Antenna system for electronic security installations
US4309697A (en) * 1980-10-02 1982-01-05 Sensormatic Electronics Corporation Magnetic surveillance system with odd-even harmonic and phase discrimination
US4384281A (en) * 1980-10-31 1983-05-17 Knogo Corporation Theft detection apparatus using saturable magnetic targets
US4539558A (en) * 1981-11-24 1985-09-03 Shin International, Inc. Antitheft system

Also Published As

Publication number Publication date
GB2164824A (en) 1986-03-26

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)