NL7404466A - - Google Patents

Info

Publication number
NL7404466A
NL7404466A NL7404466A NL7404466A NL7404466A NL 7404466 A NL7404466 A NL 7404466A NL 7404466 A NL7404466 A NL 7404466A NL 7404466 A NL7404466 A NL 7404466A NL 7404466 A NL7404466 A NL 7404466A
Authority
NL
Netherlands
Application number
NL7404466A
Other versions
NL161904B (nl
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 filed Critical
Publication of NL7404466A publication Critical patent/NL7404466A/xx
Publication of NL161904B publication Critical patent/NL161904B/xx

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
    • G08B13/2414—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 inductive tags
    • 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
    • G08B13/2471—Antenna signal processing by receiver or emitter
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
NL7404466.A 1973-04-13 1974-04-02 Diefstal-detectiestelsel. NL161904B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US351019A US3868669A (en) 1973-04-13 1973-04-13 Reduction of false alarms in electronic theft detection systems

Publications (2)

Publication Number Publication Date
NL7404466A true NL7404466A (cg-RX-API-DMAC7.html) 1974-10-15
NL161904B NL161904B (nl) 1979-10-15

Family

ID=23379246

Family Applications (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE7404466,A NL161904C (nl) 1973-04-13 Diefstal-detectiestelsel.
NL7404466.A NL161904B (nl) 1973-04-13 1974-04-02 Diefstal-detectiestelsel.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7404466,A NL161904C (nl) 1973-04-13 Diefstal-detectiestelsel.

Country Status (12)

Country Link
US (1) US3868669A (cg-RX-API-DMAC7.html)
JP (1) JPS5752637B2 (cg-RX-API-DMAC7.html)
AU (1) AU474729B2 (cg-RX-API-DMAC7.html)
BE (1) BE813708A (cg-RX-API-DMAC7.html)
CA (1) CA1023034A (cg-RX-API-DMAC7.html)
DE (1) DE2417928C3 (cg-RX-API-DMAC7.html)
FR (1) FR2228258B1 (cg-RX-API-DMAC7.html)
GB (1) GB1440398A (cg-RX-API-DMAC7.html)
IT (1) IT1018645B (cg-RX-API-DMAC7.html)
NL (2) NL161904B (cg-RX-API-DMAC7.html)
SE (1) SE397145B (cg-RX-API-DMAC7.html)
ZA (1) ZA742089B (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489001A1 (fr) * 1980-08-21 1982-02-26 Knogo Corp Procede et dispositif de detection electronique de vol d'articles

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063230A (en) * 1975-06-12 1977-12-13 The Magnavox Company Balanced field theft detection system
US4016553A (en) * 1975-06-27 1977-04-05 Knogo Corporation Article detection system with near field electromagnetic wave control
US4045778A (en) * 1976-02-23 1977-08-30 Wagner Electric Corporation Dual channel wide-band frequency modulated keyable control circuit and keying circuit therefor
US4095214A (en) * 1976-06-17 1978-06-13 Knogo Corporation Electronic monitoring system and responder device
US4117466A (en) * 1977-03-14 1978-09-26 Lichtblau G J Beat frequency interference rejection circuit
NL7708012A (nl) * 1977-07-19 1979-01-23 Nedap Nv Detectiestelsel.
US4135184A (en) * 1977-08-31 1979-01-16 Knogo Corporation Electronic theft detection system for monitoring wide passageways
ZA7994B (en) * 1978-01-11 1980-01-30 Tag Radionics Ltd Presence sensing system
US4352098A (en) * 1979-05-18 1982-09-28 Parmeko Limited Surveillance systems
US4532511A (en) * 1979-10-12 1985-07-30 Lemelson Jerome H Automatic vehicle identification system and method
US4281321A (en) * 1980-06-09 1981-07-28 Sensormatic Electronics Corporation Surveillance system employing a floor mat radiator
US4430645A (en) 1981-04-07 1984-02-07 Sensormatic Electronics Corporation Surveillance system employing a dual function floor mat radiator
US4481428A (en) * 1981-05-19 1984-11-06 Security Tag Systems, Inc. Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation
USRE32627E (en) * 1981-09-10 1988-03-22 Sensormatic Electronics Corporation Electrical surveillance apparatus with moveable antenna elements
NL8202951A (nl) * 1982-07-21 1984-02-16 Nedap Nv Absorptiedetectiestelsel.
US4623877A (en) 1983-06-30 1986-11-18 Knogo Corporation Method and apparatus for detection of targets in an interrogation zone
NL8600738A (nl) * 1986-03-24 1987-10-16 Nedap Nv Onderdrukking van valse alarmen als gevolg van aanraken.
US4794470A (en) * 1986-06-25 1988-12-27 Media Security Incorporated And Associates Security system for protecting information
US4812822A (en) * 1987-08-31 1989-03-14 Monarch Marking Systems, Inc. Electronic article surveillance system utilizing synchronous integration
NL9100026A (nl) * 1991-01-09 1992-08-03 Texas Instruments Holland Ondervraagstation voor het identificeren van over een transportbaan voortbewogen objecten.
NL9100110A (nl) * 1991-01-23 1992-08-17 Texas Instruments Holland Ondervraagstation voor identificatiedoeleinden met afzonderlijke zend- en ontvangantennes.
NL9100111A (nl) * 1991-01-23 1992-08-17 Texas Instruments Holland Antennestelsel voor een ondervraagstation voor het identificeren van objecten.
US5349332A (en) * 1992-10-13 1994-09-20 Sensormatic Electronics Corportion EAS system with requency hopping
GB9305085D0 (en) * 1993-03-12 1993-04-28 Esselte Meto Int Gmbh Electronic article surveillance system with enhanced geometric arrangement
AU8073194A (en) * 1993-10-05 1995-05-01 Pac/Scan, Inc. Retail theft prevention and information device
US5661470A (en) * 1994-03-04 1997-08-26 Karr; Gerald S. Object recognition system
DE19514601A1 (de) * 1995-04-20 1996-10-24 Esselte Meto Int Gmbh Anlage zur elektronischen Artikelüberwachung, insbesondere zur Detektion von Schwingkreisen mit stark unterschiedlichen Resonanzfrequenzen
WO1997038404A1 (en) * 1996-04-10 1997-10-16 Sentry Technology Corporation Electronic article surveillance system
US5790031A (en) * 1997-01-13 1998-08-04 Trw Inc. Apparatus and method for sensing a rearward facing child seat with error detection
US5990791A (en) * 1997-10-22 1999-11-23 William B. Spargur Anti-theft detection system
FR2828016B1 (fr) * 2001-07-30 2005-03-25 Pygmalyon Antennes du genre boucle
US10832564B2 (en) 2017-05-01 2020-11-10 Johnson Controls Technology Company Building security system with event data analysis for generating false alarm rules for false alarm reduction

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2794974A (en) * 1955-01-24 1957-06-04 Kidde & Co Walter Compensation for turbulence and other efects in intruder detection systems
US3218556A (en) * 1963-03-29 1965-11-16 Sierra Research Corp Spectrum centered receiver
US3577136A (en) * 1967-08-04 1971-05-04 Security Systems Inc Short-range signaling system
US3465336A (en) * 1968-05-09 1969-09-02 Us Army Doppler radar with clutter controlled filter channel
US3696379A (en) * 1970-12-02 1972-10-03 Knogo Corp Apparatus for article theft detection
US3711848A (en) * 1971-02-10 1973-01-16 I D Eng Inc Method of and apparatus for the detection of stolen articles
US3801977A (en) * 1971-12-07 1974-04-02 Gulf & Western Mfg Co Ultrasonic alarm circuit
US3781860A (en) * 1972-02-14 1973-12-25 Williamson W Method and apparatus for inhibiting article theft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489001A1 (fr) * 1980-08-21 1982-02-26 Knogo Corp Procede et dispositif de detection electronique de vol d'articles

Also Published As

Publication number Publication date
SE397145B (sv) 1977-10-17
FR2228258B1 (cg-RX-API-DMAC7.html) 1981-05-22
FR2228258A1 (cg-RX-API-DMAC7.html) 1974-11-29
CA1023034A (en) 1977-12-20
IT1018645B (it) 1977-10-20
JPS5752637B2 (cg-RX-API-DMAC7.html) 1982-11-09
AU474729B2 (en) 1976-07-29
DE2417928A1 (de) 1974-10-24
NL161904B (nl) 1979-10-15
AU6740774A (en) 1975-10-02
NL161904C (nl)
BE813708A (fr) 1974-10-14
ZA742089B (en) 1975-04-30
GB1440398A (en) 1976-06-23
US3868669A (en) 1975-02-25
DE2417928C3 (de) 1978-06-15
DE2417928B2 (de) 1977-10-27
JPS5010600A (cg-RX-API-DMAC7.html) 1975-02-03

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Legal Events

Date Code Title Description
P1 Automatically granted patents, except
NP1G Patent granted (not automatically) [patent specification modified]
V1 Lapsed because of non-payment of the annual fee