NL9300180A - Detectie van resonantie door middel van enkelzijbanddemodulatie. - Google Patents

Detectie van resonantie door middel van enkelzijbanddemodulatie. Download PDF

Info

Publication number
NL9300180A
NL9300180A NL9300180A NL9300180A NL9300180A NL 9300180 A NL9300180 A NL 9300180A NL 9300180 A NL9300180 A NL 9300180A NL 9300180 A NL9300180 A NL 9300180A NL 9300180 A NL9300180 A NL 9300180A
Authority
NL
Netherlands
Prior art keywords
resonance
detection
sideband demodulation
sideband
demodulation
Prior art date
Application number
NL9300180A
Other languages
English (en)
Dutch (nl)
Original Assignee
Nedap Nv
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 Nedap Nv filed Critical Nedap Nv
Priority to NL9300180A priority Critical patent/NL9300180A/xx
Priority to ES94200205T priority patent/ES2121139T3/es
Priority to DE1994612872 priority patent/DE69412872T2/de
Priority to EP19940200205 priority patent/EP0608961B1/de
Publication of NL9300180A publication Critical patent/NL9300180A/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
    • G08B13/2405—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
    • G08B13/2417—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 having a radio frequency identification chip
    • 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
    • G08B13/2431—Tag circuit details
    • 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

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)
  • Radar Systems Or Details Thereof (AREA)
  • Burglar Alarm Systems (AREA)
  • Near-Field Transmission Systems (AREA)
NL9300180A 1993-01-28 1993-01-28 Detectie van resonantie door middel van enkelzijbanddemodulatie. NL9300180A (nl)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL9300180A NL9300180A (nl) 1993-01-28 1993-01-28 Detectie van resonantie door middel van enkelzijbanddemodulatie.
ES94200205T ES2121139T3 (es) 1993-01-28 1994-01-28 Procedimiento y sistema para la deteccion de los efectos de resonancia de una etiqueta en un campo de interrogacion de barrido de frecuencia por medio de la demodulacion de una sola banda lateral.
DE1994612872 DE69412872T2 (de) 1993-01-28 1994-01-28 Verfahren und System zur Detektierung von Resonanzeffekten eines Etiketts in einem gewobbelten Abfragefeld mittels Einseitenbanddemodulation
EP19940200205 EP0608961B1 (de) 1993-01-28 1994-01-28 Verfahren und System zur Detektierung von Resonanzeffekten eines Etiketts in einem gewobbelten Abfragefeld mittels Einseitenbanddemodulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9300180A NL9300180A (nl) 1993-01-28 1993-01-28 Detectie van resonantie door middel van enkelzijbanddemodulatie.

Publications (1)

Publication Number Publication Date
NL9300180A true NL9300180A (nl) 1994-08-16

Family

ID=19861997

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9300180A NL9300180A (nl) 1993-01-28 1993-01-28 Detectie van resonantie door middel van enkelzijbanddemodulatie.

Country Status (4)

Country Link
EP (1) EP0608961B1 (de)
DE (1) DE69412872T2 (de)
ES (1) ES2121139T3 (de)
NL (1) NL9300180A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436977A1 (de) * 1994-10-15 1996-04-18 Esselte Meto Int Gmbh Anlage zur elektronischen Artikelüberwachung
EP0700026A1 (de) * 1995-07-25 1996-03-06 Actron Produktion AG Verfahren und Vorrichtung zur Ferndetektion von elektrischen Resonanzgebilden
NL1011416C2 (nl) * 1999-03-01 2000-09-06 Nl App Nfabriek Oenedapoe Nv Enkelzijband zender toepassing en schakelingen voor RF ID ondervraageenheid.
DE19908879A1 (de) * 1999-03-01 2000-09-07 Georg Siegel Gmbh Zur Verwertu Verfahren zur Umrüstung von Sensoranlagen für Warensicherungsetiketten
NL1011673C2 (nl) * 1999-03-25 2000-09-27 Nedap Nv Draaiveld ontvanger voor magnetisch identificatiesysteem.
US8933790B2 (en) 2007-06-08 2015-01-13 Checkpoint Systems, Inc. Phase coupler for rotating fields
JP2010529564A (ja) 2007-06-08 2010-08-26 チエツクポイント システムズ， インコーポレーテツド 動的ｅａｓ検出システムおよび方法
DE102011014317B4 (de) * 2011-03-18 2021-07-29 Robert Bosch Gmbh Sensorüberwachung einer Positionsmessvorrichtung mittels Wärmerauschen
CN104781826B (zh) 2012-11-23 2017-10-24 利拉伐控股有限公司 经由交变电磁场登记应答器标签
CN207051913U (zh) 2014-05-06 2018-02-27 利拉伐控股有限公司 经由交变电磁场的应答器标签注册

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8202951A (nl) * 1982-07-21 1984-02-16 Nedap Nv Absorptiedetectiestelsel.
US4812822A (en) * 1987-08-31 1989-03-14 Monarch Marking Systems, Inc. Electronic article surveillance system utilizing synchronous integration
NL8900658A (nl) * 1989-03-17 1990-10-16 Nedap Nv Hoogfrequent winkeldiefstaldetectiesysteem volgens het transmissieprincipe.

Also Published As

Publication number Publication date
DE69412872T2 (de) 1999-05-12
ES2121139T3 (es) 1998-11-16
EP0608961B1 (de) 1998-09-02
DE69412872D1 (de) 1998-10-08
EP0608961A1 (de) 1994-08-03

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BV The patent application has lapsed