JPH09106485A - 電気共振構造物を遠隔検出する方法、そのための受信機及びシステム - Google Patents

電気共振構造物を遠隔検出する方法、そのための受信機及びシステム

Info

Publication number
JPH09106485A
JPH09106485A JP19666396A JP19666396A JPH09106485A JP H09106485 A JPH09106485 A JP H09106485A JP 19666396 A JP19666396 A JP 19666396A JP 19666396 A JP19666396 A JP 19666396A JP H09106485 A JPH09106485 A JP H09106485A
Authority
JP
Japan
Prior art keywords
signal
amplitude
receiver
phase
frequency
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
Application number
JP19666396A
Other languages
English (en)
Japanese (ja)
Inventor
Alfred Welti
ヴェルティ アルフレート
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Actron Entwicklungs AG
Original Assignee
Actron Entwicklungs AG
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 Actron Entwicklungs AG filed Critical Actron Entwicklungs AG
Publication of JPH09106485A publication Critical patent/JPH09106485A/ja
Pending legal-status Critical Current

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
    • G08B13/2451—Specific applications combined with EAS
    • G08B13/2454—Checking of authorisation of a person accessing tagged items in an EAS system
JP19666396A 1995-07-25 1996-07-25 電気共振構造物を遠隔検出する方法、そのための受信機及びシステム Pending JPH09106485A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP95111660A EP0700026A1 (de) 1995-07-25 1995-07-25 Verfahren und Vorrichtung zur Ferndetektion von elektrischen Resonanzgebilden
EP951116607 1995-07-25

Publications (1)

Publication Number Publication Date
JPH09106485A true JPH09106485A (ja) 1997-04-22

Family

ID=8219464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19666396A Pending JPH09106485A (ja) 1995-07-25 1996-07-25 電気共振構造物を遠隔検出する方法、そのための受信機及びシステム

Country Status (2)

Country Link
EP (1) EP0700026A1 (de)
JP (1) JPH09106485A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11346122A (ja) * 1998-01-06 1999-12-14 Alcatel Cit 無線周波信号の振幅及び位相のデジタル制御装置及び、少なくとも一つのこのような装置を備えたプリエンファシスリニアライザ、ならびに無線周波信号の振幅及び位相のデジタル制御方法。

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023598A (en) * 1990-01-02 1991-06-11 Pitney Bowes Inc. Digital signal processor for electronic article gates
US5349339A (en) 1992-04-07 1994-09-20 Actron Entwicklungs Ag Apparatus for the detection of labels employing subtraction of background signals
US5353011A (en) * 1993-01-04 1994-10-04 Checkpoint Systems, Inc. Electronic article security system with digital signal processing and increased detection range
NL9300180A (nl) * 1993-01-28 1994-08-16 Nedap Nv Detectie van resonantie door middel van enkelzijbanddemodulatie.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11346122A (ja) * 1998-01-06 1999-12-14 Alcatel Cit 無線周波信号の振幅及び位相のデジタル制御装置及び、少なくとも一つのこのような装置を備えたプリエンファシスリニアライザ、ならびに無線周波信号の振幅及び位相のデジタル制御方法。

Also Published As

Publication number Publication date
EP0700026A1 (de) 1996-03-06

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