FI86233B - Mottagaranordning. - Google Patents

Mottagaranordning.

Info

Publication number
FI86233B
FI86233B FI874087A FI874087A FI86233B FI 86233 B FI86233 B FI 86233B FI 874087 A FI874087 A FI 874087A FI 874087 A FI874087 A FI 874087A FI 86233 B FI86233 B FI 86233B
Authority
FI
Finland
Prior art keywords
coil
receiving
indicating device
emit
parallel
Prior art date
Application number
FI874087A
Other languages
English (en)
Other versions
FI874087A0 (fi
FI86233C (fi
FI874087A (fi
Inventor
Leif Aosbrink
Original Assignee
Intermodulation & Safety Syst
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 Intermodulation & Safety Syst filed Critical Intermodulation & Safety Syst
Publication of FI874087A0 publication Critical patent/FI874087A0/fi
Publication of FI874087A publication Critical patent/FI874087A/fi
Application granted granted Critical
Publication of FI86233B publication Critical patent/FI86233B/fi
Publication of FI86233C publication Critical patent/FI86233C/fi

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
    • 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
    • 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
    • G06K7/087—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 flux-sensitive, e.g. magnetic, detectors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2474—Antenna or antenna activator geometry, arrangement or layout
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Saccharide Compounds (AREA)
  • Pinball Game Machines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
FI874087A 1986-01-21 1987-09-18 Mottagaranordning. FI86233C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8600258 1986-01-21
SE8600258A SE451166C (sv) 1986-01-21 1986-01-21 Mottagaranordning foer att detektera naervaro av en indikeringsanordning i en begraensad undersoekningszon
PCT/SE1987/000015 WO1987004551A1 (en) 1986-01-21 1987-01-16 Receiving device
SE8700015 1987-01-16

Publications (4)

Publication Number Publication Date
FI874087A0 FI874087A0 (fi) 1987-09-18
FI874087A FI874087A (fi) 1987-09-18
FI86233B true FI86233B (fi) 1992-04-15
FI86233C FI86233C (fi) 1992-07-27

Family

ID=20363169

Family Applications (1)

Application Number Title Priority Date Filing Date
FI874087A FI86233C (fi) 1986-01-21 1987-09-18 Mottagaranordning.

Country Status (12)

Country Link
US (1) US4845509A (fi)
EP (1) EP0238458B1 (fi)
JP (1) JPH0782593B2 (fi)
AT (1) ATE184723T1 (fi)
AU (1) AU594745B2 (fi)
CA (1) CA1278352C (fi)
DE (1) DE3752291T2 (fi)
DK (1) DK167511B1 (fi)
ES (1) ES2136054T3 (fi)
FI (1) FI86233C (fi)
SE (1) SE451166C (fi)
WO (1) WO1987004551A1 (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103234A (en) * 1987-08-28 1992-04-07 Sensormatic Electronics Corporation Electronic article surveillance system
ZA889254B (en) * 1987-12-10 1990-08-29 Uniscan Ltd Powering and communication apparatus and method(s)
US5126749A (en) * 1989-08-25 1992-06-30 Kaltner George W Individually fed multiloop antennas for electronic security systems
US5142292A (en) * 1991-08-05 1992-08-25 Checkpoint Systems, Inc. Coplanar multiple loop antenna for electronic article surveillance systems
US5404147A (en) * 1992-10-28 1995-04-04 Sensormatic Electronics Corporation EAS system loop antenna having three loops of different area
DE4436974B4 (de) * 1994-10-15 2004-04-01 Meto International Gmbh Markierungselement zur Sicherung von Artikeln gegen Diebstahl
DE4440314A1 (de) * 1994-11-11 1996-05-15 Esselte Meto Int Gmbh Markierungselement zur Sicherung von Artikeln gegen Diebstahl
FR2745103B1 (fr) * 1996-02-15 1998-04-03 Bourgogne Grasset Dispositif de rangement pour jetons de jeu
USD867192S1 (en) 2018-06-06 2019-11-19 Donald R. Sweeney Metal detector

Family Cites Families (11)

* 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
US4118693A (en) * 1977-05-09 1978-10-03 Knogo Corporation Method and apparatus for producing uniform electromagnetic fields in an article detection system
SE429382B (sv) * 1977-05-09 1983-08-29 Knogo Corp Sett och apparat for detektering av obehorig passage av foremal genom en fragezon
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
DK145169C (da) * 1978-08-09 1983-02-21 Security Prod Int Anlaeg til registrering af en passage af en genstand gennem etforudbestemt omraade
US4373163A (en) * 1980-07-14 1983-02-08 I.D. Engineering, Inc. Loop antenna for security systems
US4309697A (en) * 1980-10-02 1982-01-05 Sensormatic Electronics Corporation Magnetic surveillance system with odd-even harmonic and phase discrimination
GB2133660B (en) * 1982-11-09 1986-07-30 Tag Radionics Ltd Transponder detection systems
DE3578228D1 (de) * 1984-02-15 1990-07-19 Esselte Meto Eas Int Ab Verfahren und anordnung zur detektion eines anzeigegeraets.
US4633250A (en) * 1985-01-07 1986-12-30 Allied Corporation Coplanar antenna for proximate surveillance systems

Also Published As

Publication number Publication date
DK167511B1 (da) 1993-11-08
DK489387D0 (da) 1987-09-18
ES2136054T3 (es) 1999-11-16
FI874087A0 (fi) 1987-09-18
ATE184723T1 (de) 1999-10-15
SE451166B (sv) 1987-09-07
DE3752291T2 (de) 2000-03-23
SE451166C (sv) 1990-11-01
DE3752291D1 (de) 1999-10-21
CA1278352C (en) 1990-12-27
EP0238458B1 (en) 1999-09-15
US4845509A (en) 1989-07-04
WO1987004551A1 (en) 1987-07-30
JPS63502226A (ja) 1988-08-25
SE8600258D0 (sv) 1986-01-21
DK489387A (da) 1987-09-18
FI86233C (fi) 1992-07-27
FI874087A (fi) 1987-09-18
EP0238458A3 (en) 1989-10-04
JPH0782593B2 (ja) 1995-09-06
SE8600258L (sv) 1987-07-22
AU6899487A (en) 1987-08-14
EP0238458A2 (en) 1987-09-23
AU594745B2 (en) 1990-03-15

Similar Documents

Publication Publication Date Title
IT8722680A0 (it) Dispositivo per misurare un campo magnetico con flusso debole.
DE3460865D1 (en) Super-conductive gradiometer coil system for a device for the multichannel testing of weak, changing magnetic fields
FI87020B (fi) Foerfarande och anordning foer testning av staolvajer.
FI86233B (fi) Mottagaranordning.
BR9709864A (pt) Detetor para sentir a presença de uma etiqueta magnética e leitora de nota bancária
ES2112185A1 (es) Un sensor de corriente alterna que utiliza placas paralelas con alto margen dinamico y elevada precision.
EP0229991A3 (en) Apparatus for protection against metallic objects
SE8500977D0 (sv) Arrangemang vid en magnetisk legesgivare
US20040008022A1 (en) Current sensor
ES2029997T3 (es) Inductor y dispositivo de recalentamiento inductivo de bordes de un producto metalurgico.
SE8605403D0 (sv) Anordning for bestemning av andelen paramagnetiska substanser i substansblandningar
DE3480947D1 (de) Magnetfeldsonde.
KR920008489A (ko) 전자유도에 의한 검사장치
SU838572A1 (ru) Дефференциальный измеритель скоростидВижЕНи
RU96123507A (ru) Способ проверки проводимости электровзрывной сети
SU1170360A1 (ru) Устройство дл измерени больших посто нных токов
SU777724A1 (ru) Устройство дл нат жени магнитной ленты
BR8707441A (pt) Maquina de inducao eletromagnetica mono e polifasicas com simetria magnetica polar regulada
SU1362372A2 (ru) Сверхпровод щий датчик посто нного тока
RU95111960A (ru) Устройство для получения градиентного магнитного поля
JPS55153248A (en) Electric rotary machine
JPS6435728A (en) Optical head device
RU97100045A (ru) Индукционное зондовое устройство
ES2113827A1 (es) Sensor magnetometrico biaxico.
FI871991A (fi) Stroemtransformator foer en statisk elmaetare.

Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: ESSELTE METO INTERNATIONAL GMBH

FG Patent granted

Owner name: ESSELTE METO INTERNATIONAL GMBH

MA Patent expired