ATE196698T1 - Ein elektronisches alarmsystem - Google Patents

Ein elektronisches alarmsystem

Info

Publication number
ATE196698T1
ATE196698T1 AT95934951T AT95934951T ATE196698T1 AT E196698 T1 ATE196698 T1 AT E196698T1 AT 95934951 T AT95934951 T AT 95934951T AT 95934951 T AT95934951 T AT 95934951T AT E196698 T1 ATE196698 T1 AT E196698T1
Authority
AT
Austria
Prior art keywords
transmitter
receiver
coil
pct
resistance
Prior art date
Application number
AT95934951T
Other languages
English (en)
Inventor
Leif Asbrink
Original Assignee
Safeplus Ab
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 Safeplus Ab filed Critical Safeplus Ab
Application granted granted Critical
Publication of ATE196698T1 publication Critical patent/ATE196698T1/de

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Emergency Alarm Devices (AREA)
AT95934951T 1994-10-13 1995-10-13 Ein elektronisches alarmsystem ATE196698T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9403495A SE9403495D0 (sv) 1994-10-13 1994-10-13 Anordning vid elektroniska larmsystem
PCT/SE1995/001189 WO1996012263A1 (en) 1994-10-13 1995-10-13 An electronic alarm system

Publications (1)

Publication Number Publication Date
ATE196698T1 true ATE196698T1 (de) 2000-10-15

Family

ID=20395602

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95934951T ATE196698T1 (de) 1994-10-13 1995-10-13 Ein elektronisches alarmsystem

Country Status (7)

Country Link
US (1) US5777555A (de)
EP (1) EP0786127B1 (de)
AT (1) ATE196698T1 (de)
AU (1) AU3715295A (de)
DE (1) DE69518987D1 (de)
SE (1) SE9403495D0 (de)
WO (1) WO1996012263A1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212002A (en) * 1976-05-24 1980-07-08 Williamson Robert D Method and apparatus for selective electronic surveillance
ATE53675T1 (de) * 1984-02-15 1990-06-15 Esselte Meto Eas Int Ab Verfahren und anordnung zur detektion eines anzeigegeraets.
GB9125846D0 (en) * 1991-12-04 1992-02-05 Esselte Meto Int Gmbh Improved interrogation and detection means for theft-detection systems
US5353011A (en) * 1993-01-04 1994-10-04 Checkpoint Systems, Inc. Electronic article security system with digital signal processing and increased detection range

Also Published As

Publication number Publication date
EP0786127B1 (de) 2000-09-27
SE9403495D0 (sv) 1994-10-13
AU3715295A (en) 1996-05-06
DE69518987D1 (de) 2000-11-02
EP0786127A1 (de) 1997-07-30
US5777555A (en) 1998-07-07
WO1996012263A1 (en) 1996-04-25

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties