JPS5853782A - 監視用マ−カ及び装置 - Google Patents
監視用マ−カ及び装置Info
- Publication number
- JPS5853782A JPS5853782A JP57152819A JP15281982A JPS5853782A JP S5853782 A JPS5853782 A JP S5853782A JP 57152819 A JP57152819 A JP 57152819A JP 15281982 A JP15281982 A JP 15281982A JP S5853782 A JPS5853782 A JP S5853782A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- marker
- energy
- radio waves
- detectable
- 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
Links
- 239000003550 marker Substances 0.000 title claims description 32
- 230000005291 magnetic effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 230000005672 electromagnetic field Effects 0.000 claims description 9
- 239000000696 magnetic material Substances 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 239000003302 ferromagnetic material Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 229910000889 permalloy Inorganic materials 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- G08B13/2422—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 acoustic or microwave 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
- G08B13/2428—Tag details
- G08B13/2437—Tag layered structure, processes for making layered 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
- G08B13/2428—Tag details
- G08B13/2448—Tag with at least dual detection means, e.g. combined inductive and ferromagnetic tags, dual frequencies within a single technology, tampering detection or signalling means on the tag
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Burglar Alarm Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/299,304 US4413254A (en) | 1981-09-04 | 1981-09-04 | Combined radio and magnetic energy responsive surveillance marker and system |
US299304 | 1981-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5853782A true JPS5853782A (ja) | 1983-03-30 |
Family
ID=23154224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57152819A Pending JPS5853782A (ja) | 1981-09-04 | 1982-09-03 | 監視用マ−カ及び装置 |
Country Status (14)
Families Citing this family (65)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4549186A (en) * | 1982-04-14 | 1985-10-22 | Sensormatic Electronics Corporation | Coil assembly for substantially isotropic flux linkage in a given plane |
US4642640A (en) * | 1983-04-25 | 1987-02-10 | Sensormatic Electronics Corporation | Signal receptor-reradiator and surveillance tag using the same |
CA1234892A (en) * | 1984-02-16 | 1988-04-05 | Pierre Taillefer | Security tag detection system |
US4583083A (en) * | 1984-06-28 | 1986-04-15 | Bogasky John J | Checkout station to reduce retail theft |
US4622542A (en) * | 1985-06-26 | 1986-11-11 | Controlled Information Corporation | Magnetic article surveillance system, method and coded marker |
US4736207A (en) * | 1986-01-31 | 1988-04-05 | Sensormatic Electronics Corporation | Tag device and method for electronic article surveillance |
US4682154A (en) * | 1986-02-12 | 1987-07-21 | E.A.S. Technologies, Inc. | Label for use in anti-theft surveillance system |
US4799045A (en) * | 1986-02-12 | 1989-01-17 | E.A.S. Technologies, Inc. | Method of detecting a label used in an anti-theft surveillance system |
US4783646A (en) * | 1986-03-07 | 1988-11-08 | Kabushiki Kaisha Toshiba | Stolen article detection tag sheet, and method for manufacturing the same |
US4736196A (en) * | 1986-11-18 | 1988-04-05 | Cost-Effective Monitoring Systems, Co. | Electronic monitoring system |
US4779076A (en) * | 1987-05-20 | 1988-10-18 | Controlled Information Corp. | Deactivatable coded marker and magnetic article surveillance system |
ATE126379T1 (de) * | 1989-05-19 | 1995-08-15 | Mw Trading Aps | Antidiebstahlvorrichtung für brillengestelle. |
US5012225A (en) * | 1989-12-15 | 1991-04-30 | Checkpoint Systems, Inc. | System for deactivating a field-sensitive tag or label |
US5030940A (en) * | 1990-08-02 | 1991-07-09 | Sensormatic Electronics Corporation | Electronic article surveillance tag and method for implementing same |
US5355126A (en) * | 1990-08-06 | 1994-10-11 | Motorola, Inc. | Selective call system interactive with a wide area selective call system |
US5278573A (en) * | 1990-08-06 | 1994-01-11 | Sensormatic Electronics Corporation | Electronic article surveillance system and tag circuit components therefor |
US5241299A (en) * | 1991-05-22 | 1993-08-31 | Checkpoint Systems, Inc. | Stabilized resonant tag circuit |
US5142270A (en) * | 1991-05-22 | 1992-08-25 | Checkpoint Systems Inc. | Stabilized resonant tag circuit and deactivator |
US5276431A (en) * | 1992-04-29 | 1994-01-04 | Checkpoint Systems, Inc. | Security tag for use with article having inherent capacitance |
US5241923A (en) * | 1992-07-23 | 1993-09-07 | Pole/Zero Corporation | Transponder control of animal whereabouts |
US7158031B2 (en) * | 1992-08-12 | 2007-01-02 | Micron Technology, Inc. | Thin, flexible, RFID label and system for use |
US5604485A (en) * | 1993-04-21 | 1997-02-18 | Motorola Inc. | RF identification tag configurations and assemblies |
DE9411481U1 (de) | 1994-01-18 | 1994-09-22 | GEA Till GmbH & Co, 65830 Kriftel | Kontrollkeg zur Funktionsüberwachung von Abfüllanlagen für Gebinde und Anlage mit einem solchen Kontrollkeg |
DE9422424U1 (de) * | 1994-02-04 | 2002-02-21 | Giesecke & Devrient GmbH, 81677 München | Chipkarte mit einem elektronischen Modul |
DE19614914A1 (de) * | 1996-04-16 | 1997-10-23 | Telesensomatic Gmbh | Transponderanordnung und Verfahren zur Herstellung einer solchen Transponderanordnung |
US5859587A (en) * | 1996-09-26 | 1999-01-12 | Sensormatic Electronics Corporation | Data communication and electronic article surveillance tag |
US5990794A (en) * | 1996-09-26 | 1999-11-23 | Sensormatic Electronics Corporation | Apparatus for data communication and deactivation of electronic article surveillance tags |
US6064308A (en) * | 1996-10-25 | 2000-05-16 | Pole/Zero Corporation | RF signaling system and system for controlling the whereabouts of animals using same |
US6446049B1 (en) | 1996-10-25 | 2002-09-03 | Pole/Zero Corporation | Method and apparatus for transmitting a digital information signal and vending system incorporating same |
US6130612A (en) * | 1997-01-05 | 2000-10-10 | Intermec Ip Corp. | Antenna for RF tag with a magnetoelastic resonant core |
US6329213B1 (en) | 1997-05-01 | 2001-12-11 | Micron Technology, Inc. | Methods for forming integrated circuits within substrates |
US5877728A (en) * | 1997-05-28 | 1999-03-02 | Checkpoint Systems, Inc. | Multiple loop antenna |
US6339385B1 (en) * | 1997-08-20 | 2002-01-15 | Micron Technology, Inc. | Electronic communication devices, methods of forming electrical communication devices, and communication methods |
DE19745953C2 (de) * | 1997-10-17 | 2002-12-05 | Anatoli Stobbe | Diebstahl-Sicherungssystem sowie Verfahren zur automatischen Detektion und Identifikation eines Warensicherungsetiketts durch eine Basisstation |
US6166643A (en) * | 1997-10-23 | 2000-12-26 | Janning; Joseph J. | Method and apparatus for controlling the whereabouts of an animal |
US6154137A (en) * | 1998-06-08 | 2000-11-28 | 3M Innovative Properties Company | Identification tag with enhanced security |
BR9913043B1 (pt) | 1998-08-14 | 2012-10-02 | processos para ordenar um grupo de itens desordenados possuindo elementos de identificação por radiofrequência, para usar um dispositivo de identificação por radiofrequência seguro na mão para ler informação de um elemento de identificação por radiofrequência, e para usar um dispositivo de identificação por radiofrequência para identificar e localizar itens possuindo um elemento de identificação por radiofrequência. | |
EP1770593B1 (en) * | 1998-08-14 | 2010-04-14 | 3M Innovative Properties Company | Method of using a portable RFID reader device |
US6424262B2 (en) | 1998-08-14 | 2002-07-23 | 3M Innovative Properties Company | Applications for radio frequency identification systems |
DE69909301T2 (de) | 1998-08-14 | 2004-04-22 | 3M Innovative Properties Co., St. Paul | Verwendung für ein hochfrequenz-identifikationssystem |
US6057765A (en) * | 1998-10-07 | 2000-05-02 | Research Electronics International | Non-linear junction detector |
US6121879A (en) * | 1998-12-23 | 2000-09-19 | Sensormatic Electronics Corporation | Deactivation element configuration for microwave-magnetic EAS marker |
US6163259A (en) * | 1999-06-04 | 2000-12-19 | Research Electronics International | Pulse transmitting non-linear junction detector |
DE10016133C2 (de) * | 2000-03-31 | 2002-06-20 | Siemens Ag | Verfahren zum Sichern einer berührungslosen Signalübertragung von einem Sender zu einem Empfänger sowie Signalübertragungseinrichtung |
US6356197B1 (en) | 2000-04-03 | 2002-03-12 | Sensormatic Electronics Corporation | Electronic article surveillance and identification device, system, and method |
US6373387B1 (en) * | 2000-08-08 | 2002-04-16 | Honeywell International Inc. | Integrated hybrid electronic article surveillance marker |
ITAR20000040A1 (it) * | 2000-09-08 | 2002-03-08 | Alessandro Manneschi | Trasduttore lettore di transponder per il controllo dei passaggi |
AU2002227416A1 (en) * | 2000-12-15 | 2002-06-24 | Eastern Ribbon And Roll Corp. | Paper roll anti-theft protection |
US7588185B2 (en) | 2001-06-07 | 2009-09-15 | 3M Innovative Properties Company | RFID data collection and use |
US8148989B2 (en) * | 2002-03-11 | 2012-04-03 | Keith Kopp | Ferromagnetic detection enhancer compatible with magnetic resonance |
US7489128B2 (en) * | 2002-03-11 | 2009-02-10 | Kopp Keith A | MRI protector |
US20060164240A1 (en) * | 2002-07-12 | 2006-07-27 | John Patchell | Human detection device |
GB2395276B (en) * | 2002-11-12 | 2006-03-08 | Qinetiq Ltd | Ferromagnetic object detector |
US7042359B2 (en) * | 2003-08-23 | 2006-05-09 | Sensormatic Electronics Corporation | Method and apparatus to detect a plurality of security tags |
US7704346B2 (en) * | 2004-02-23 | 2010-04-27 | Checkpoint Systems, Inc. | Method of fabricating a security tag in an integrated surface processing system |
US7116227B2 (en) * | 2004-02-23 | 2006-10-03 | Checkpoint Systems, Inc. | Tag having patterned circuit elements and a process for making same |
US8099335B2 (en) * | 2004-02-23 | 2012-01-17 | Checkpoint Systems, Inc. | Method and system for determining billing information in a tag fabrication process |
US7119685B2 (en) * | 2004-02-23 | 2006-10-10 | Checkpoint Systems, Inc. | Method for aligning capacitor plates in a security tag and a capacitor formed thereby |
US7138919B2 (en) * | 2004-02-23 | 2006-11-21 | Checkpoint Systems, Inc. | Identification marking and method for applying the identification marking to an item |
US7384496B2 (en) * | 2004-02-23 | 2008-06-10 | Checkpoint Systems, Inc. | Security tag system for fabricating a tag including an integrated surface processing system |
US7808226B1 (en) | 2005-10-26 | 2010-10-05 | Research Electronics International | Line tracing method and apparatus utilizing non-linear junction detecting locator probe |
US7212008B1 (en) | 2005-11-03 | 2007-05-01 | Barsumian Bruce R | Surveillance device detection utilizing non linear junction detection and reflectometry |
ATE545968T1 (de) * | 2007-03-06 | 2012-03-15 | Panasonic Corp | Klappbare dipolantenne |
US8138890B2 (en) * | 2008-05-09 | 2012-03-20 | International Business Machines Corporation | Hybrid ultrasonic and radio frequency identification system and method |
US20100097219A1 (en) * | 2008-10-16 | 2010-04-22 | Sidnei Dal Gallo | Article with theft-deterring feature |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO126975B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1967-03-30 | 1973-04-16 | John Welsh | |
US3493955A (en) * | 1968-04-17 | 1970-02-03 | Monere Corp | Method and apparatus for detecting the unauthorized movement of articles |
GB1290097A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1969-04-02 | 1972-09-20 | ||
DK134666B (da) * | 1970-02-20 | 1976-12-20 | Svejsecentralen | Fremgangsmåde til mærkning og senere lokalisering, identifikation og registrering af fysiske objekter samt elektronisk mærkningsoragn til anvendelse ved udøvelse af fremgangsmåden. |
US3711848A (en) * | 1971-02-10 | 1973-01-16 | I D Eng Inc | Method of and apparatus for the detection of stolen articles |
US3774205A (en) * | 1971-08-02 | 1973-11-20 | Ncr Co | Merchandise mark sensing system |
JPS4877695A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-12-30 | 1973-10-18 | ||
US3895368A (en) * | 1972-08-09 | 1975-07-15 | Sensormatic Electronics Corp | Surveillance system and method utilizing both electrostatic and electromagnetic fields |
US3820104A (en) * | 1972-12-15 | 1974-06-25 | Stop Loss Inc | Method and system for detecting an object within a magnetic field interrogation zone |
GB1428685A (en) * | 1973-06-13 | 1976-03-17 | Thompson T F | Method and apparatus for actuating an electric circuit |
US3938044A (en) * | 1973-11-14 | 1976-02-10 | Lichtblau G J | Antenna apparatus for an electronic security system |
US3983552A (en) * | 1975-01-14 | 1976-09-28 | American District Telegraph Company | Pilferage detection systems |
GB1543715A (en) * | 1976-04-22 | 1979-04-04 | Atomic Energy Authority Uk | Identification systems |
US4195286A (en) * | 1978-01-06 | 1980-03-25 | American District Telegraph Company | Alarm system having improved false alarm rate and detection reliability |
US4209776A (en) * | 1978-07-24 | 1980-06-24 | Electronic Surveillance Fence Security, Inc. | Vibratory and ultrasonic fence intruder detection system |
US4309697A (en) * | 1980-10-02 | 1982-01-05 | Sensormatic Electronics Corporation | Magnetic surveillance system with odd-even harmonic and phase discrimination |
BE893006A (fr) * | 1982-04-28 | 1982-08-16 | Deterrent Tech Corp | Systeme anti-vol a double frequence. |
-
1981
- 1981-09-04 US US06/299,304 patent/US4413254A/en not_active Expired - Fee Related
-
1982
- 1982-08-25 DE DE19823231595 patent/DE3231595A1/de active Granted
- 1982-08-31 GB GB08224841A patent/GB2110506B/en not_active Expired
- 1982-09-02 CA CA000410639A patent/CA1187155A/en not_active Expired
- 1982-09-03 ES ES515482A patent/ES515482A0/es active Granted
- 1982-09-03 JP JP57152819A patent/JPS5853782A/ja active Pending
- 1982-09-03 AR AR290537A patent/AR229279A1/es active
- 1982-09-03 NL NL8203454A patent/NL8203454A/nl not_active Application Discontinuation
- 1982-09-03 MX MX194289A patent/MX152708A/es unknown
- 1982-09-03 BR BR8205178A patent/BR8205178A/pt unknown
- 1982-09-03 IT IT09506/82A patent/IT1192503B/it active
- 1982-09-03 FR FR8215069A patent/FR2512557B1/fr not_active Expired
- 1982-09-03 SE SE8205025A patent/SE456703B/sv not_active IP Right Cessation
- 1982-09-03 BE BE0/208950A patent/BE894301A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3231595A1 (de) | 1983-03-17 |
SE456703B (sv) | 1988-10-24 |
ES8401653A1 (es) | 1983-12-16 |
CA1187155A (en) | 1985-05-14 |
MX152708A (es) | 1985-10-18 |
FR2512557B1 (fr) | 1985-11-15 |
BE894301A (fr) | 1983-01-03 |
NL8203454A (nl) | 1983-04-05 |
SE8205025D0 (sv) | 1982-09-03 |
IT8209506A0 (it) | 1982-09-03 |
AR229279A1 (es) | 1983-07-15 |
GB2110506A (en) | 1983-06-15 |
ES515482A0 (es) | 1983-12-16 |
DE3231595C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-02-06 |
BR8205178A (pt) | 1983-08-16 |
US4413254A (en) | 1983-11-01 |
GB2110506B (en) | 1986-05-14 |
IT1192503B (it) | 1988-04-20 |
FR2512557A1 (fr) | 1983-03-11 |
SE8205025L (sv) | 1983-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5853782A (ja) | 監視用マ−カ及び装置 | |
US6371379B1 (en) | Magnetic tags or markers | |
EP0352936B1 (en) | Deactivatable frequency-dividing-transponder tag | |
US4745401A (en) | RF reactivatable marker for electronic article surveillance system | |
US6177870B1 (en) | Resonant EAS marker with sideband generator | |
KR100832919B1 (ko) | 집적화된 하이브리드 전자식 물건 감시 마커 | |
US4075618A (en) | Magnetic asymmetric antipilferage marker | |
EP0407532B1 (en) | Antenna structure for an electronic article surveillance system | |
US5608379A (en) | Deactivatable EAS tag | |
US3774205A (en) | Merchandise mark sensing system | |
CA2258772C (en) | Magnetic reading devices | |
US3754226A (en) | Conductive-ring ferromagnetic marker and method and system for using same | |
US20050270159A1 (en) | Combination radio frequency identification transponder (RFID Tag) and magnetic electronic article surveillance (EAS) tag | |
US6121879A (en) | Deactivation element configuration for microwave-magnetic EAS marker | |
US4574274A (en) | Non-contact electrostatic deactivator | |
CA1301880C (en) | Dual status magnetic marker having magnetically biasable flux collectors for use in electronic article surveillance systems | |
JP2000048147A (ja) | ラベル状の非接触データキャリアとその製造方法 | |
US5010320A (en) | Self modulating electronic article surveillance marker | |
US20040046665A1 (en) | Deactivatable radio frequency security label | |
US4884063A (en) | Dual status magnetic marker having magnetically biasable flux collectors for use in electronic article surveillance systems | |
KR100484009B1 (ko) | 자기감지및판독장치 | |
RU2332713C1 (ru) | Деактиватор электромагнитных меток | |
WO1993011516A1 (en) | Method of and system for surveillance and detection using magnetic markers | |
JPH11329817A (ja) | データキャリア装置およびその検出方法並びに検出装置 |