CA1017427A - System and method for detecting removal of goods from protected premises, and magnet detecting apparatus suitable for use therein - Google Patents
System and method for detecting removal of goods from protected premises, and magnet detecting apparatus suitable for use thereinInfo
- Publication number
- CA1017427A CA1017427A CA187,193A CA187193A CA1017427A CA 1017427 A CA1017427 A CA 1017427A CA 187193 A CA187193 A CA 187193A CA 1017427 A CA1017427 A CA 1017427A
- Authority
- CA
- Canada
- Prior art keywords
- goods
- detecting
- apparatus suitable
- magnet
- protected premises
- 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.)
- Expired
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
- 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
-
- 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
- G08B13/2477—Antenna or antenna activator circuit
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Burglar Alarm Systems (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US311767A US3919704A (en) | 1972-12-04 | 1972-12-04 | System and method for detecting unauthorized removal of goods from protected premises, and magnet detecting apparatus suitable for use therein |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1017427A true CA1017427A (en) | 1977-09-13 |
Family
ID=23208367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA187,193A Expired CA1017427A (en) | 1972-12-04 | 1973-12-03 | System and method for detecting removal of goods from protected premises, and magnet detecting apparatus suitable for use therein |
Country Status (5)
Country | Link |
---|---|
US (1) | US3919704A (sk) |
JP (1) | JPS49116998A (sk) |
CA (1) | CA1017427A (sk) |
DE (1) | DE2360108A1 (sk) |
GB (1) | GB1458977A (sk) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4326198A (en) * | 1976-08-18 | 1982-04-20 | Knogo Corporation | Method and apparatus for the promotion of selected harmonic response signals in an article detection system |
DE2732543C3 (de) * | 1977-07-19 | 1980-08-07 | Precitec Gesellschaft Fuer Praezisionstechnik Und Elektronik Mbh & Co Entwicklungs- Und Vertriebs-Kg, 7570 Baden-Baden | Vorrichtung zur Erfassung von sich im Gebiet einer Grenzfläche befindenden Objekten |
US4476459A (en) * | 1981-10-23 | 1984-10-09 | Knogo Corporation | Theft detection method and apparatus in which the decay of a resonant circuit is detected |
US4555696A (en) * | 1983-06-08 | 1985-11-26 | Brown Donald G | Passageway selective detector mechanism and system |
GB2154350A (en) * | 1984-02-17 | 1985-09-04 | Standard Telephones Cables Ltd | Preventing misuse of information stored on computer tapes and the like |
US4647917A (en) * | 1984-03-26 | 1987-03-03 | Allied Corporation | Article control system having coded magnetomechanical marker |
US4728938A (en) * | 1986-01-10 | 1988-03-01 | Checkpoint Systems, Inc. | Security tag deactivation system |
US4692747A (en) * | 1986-07-17 | 1987-09-08 | Checkpoint Systems, Inc. | Article security system |
GB2226636B (en) * | 1988-12-05 | 1993-01-27 | Plessey Co Plc | Apparatus for sensing the movement of a local magnetic object. |
GB9019013D0 (en) * | 1990-08-31 | 1990-10-17 | Gec Ferranti Defence Syst | A moving magnetic field detector |
JP2517897Y2 (ja) * | 1990-12-12 | 1996-11-20 | クレハエラストマー株式会社 | 電波発生用ゴムマット |
DK167417B1 (da) * | 1991-04-10 | 1993-10-25 | Esselte Meto Int Gmbh | Varesikringssystem |
US5661470A (en) * | 1994-03-04 | 1997-08-26 | Karr; Gerald S. | Object recognition system |
RU2180129C2 (ru) | 1996-06-19 | 2002-02-27 | Флайинг Налл Лимитед | Детектор для обнаружения присутствия магнитной метки |
US7416117B1 (en) * | 1998-12-21 | 2008-08-26 | Ncr Corporation | Method and apparatus for determining if a user walks away from a self-service checkout terminal during operation thereof |
US6184846B1 (en) | 2000-02-03 | 2001-02-06 | Marconi Commerce Systems Inc. | Loop conductor antenna for fuel dispenser |
US6724311B1 (en) | 2001-11-09 | 2004-04-20 | B&G Plastics, Inc. | Anti-theft hang tag |
US20040069847A1 (en) * | 2002-10-15 | 2004-04-15 | Chester Kolton | Electronic article surveillance marker assembly |
US20150230436A1 (en) * | 2014-02-14 | 2015-08-20 | Elive Llc | Magnetized mat for an aquarium |
US10600026B2 (en) | 2016-07-08 | 2020-03-24 | Walmart Apollo, Llc | Stocking level indication system and method |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2280461A (en) * | 1941-10-06 | 1942-04-21 | Morris Abrams And Morris Zippe | Elimination of atmospheric radio disturbances |
US3292080A (en) * | 1964-11-23 | 1966-12-13 | Emmanuel M Trikilis | System and method for preventing pilferage by detection of magnetic fields |
US3423674A (en) * | 1965-06-29 | 1969-01-21 | Nytronics Inc | Theft-detection system for library use including a plurality of hall cells |
US3747086A (en) * | 1968-03-22 | 1973-07-17 | Shoplifter International Inc | Deactivatable ferromagnetic marker for detection of objects having marker secured thereto and method and system of using same |
US3754226A (en) * | 1968-03-22 | 1973-08-21 | Stoplifter Int Inc | Conductive-ring ferromagnetic marker and method and system for using same |
US3697972A (en) * | 1969-06-26 | 1972-10-10 | Yull Brown | Metal detection and alarm systems |
US3665449A (en) * | 1969-07-11 | 1972-05-23 | Minnesota Mining & Mfg | Method and apparatus for detecting at a distance the status and identity of objects |
US3665448A (en) * | 1970-08-03 | 1972-05-23 | Hugh A Mcglinchey | Electronic shoplifting prevention system |
US3696379A (en) * | 1970-12-02 | 1972-10-03 | Knogo Corp | Apparatus for article theft detection |
US3718922A (en) * | 1971-02-03 | 1973-02-27 | L Heck | Product monitoring apparatus,system and method |
US3711848A (en) * | 1971-02-10 | 1973-01-16 | I D Eng Inc | Method of and apparatus for the detection of stolen articles |
US3706027A (en) * | 1971-07-13 | 1972-12-12 | Karl R Grice Jr | Materials counting system utilizing permanent magnets and their associated fields |
US3763424A (en) * | 1971-07-15 | 1973-10-02 | Sperry Rand Corp | Metal detector for identifying and discriminating between objects of different size, shape, orientation and ferrous content and including an auto nulling circuit |
-
1972
- 1972-12-04 US US311767A patent/US3919704A/en not_active Expired - Lifetime
-
1973
- 1973-12-03 GB GB5591673A patent/GB1458977A/en not_active Expired
- 1973-12-03 JP JP48136431A patent/JPS49116998A/ja active Pending
- 1973-12-03 DE DE2360108A patent/DE2360108A1/de not_active Withdrawn
- 1973-12-03 CA CA187,193A patent/CA1017427A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS49116998A (sk) | 1974-11-08 |
GB1458977A (en) | 1976-12-22 |
DE2360108A1 (de) | 1974-06-06 |
US3919704A (en) | 1975-11-11 |
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