PT92517A - Dispositivo anti-fraude - Google Patents

Dispositivo anti-fraude Download PDF

Info

Publication number
PT92517A
PT92517A PT9251789A PT9251789A PT92517A PT 92517 A PT92517 A PT 92517A PT 9251789 A PT9251789 A PT 9251789A PT 9251789 A PT9251789 A PT 9251789A PT 92517 A PT92517 A PT 92517A
Authority
PT
Portugal
Prior art keywords
fraud
timing means
reflector
fraud device
sensor beam
Prior art date
Application number
PT9251789A
Other languages
English (en)
Portuguese (pt)
Inventor
Raymond Ronald Higgs
Original Assignee
Id Systems Int
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 Id Systems Int filed Critical Id Systems Int
Publication of PT92517A publication Critical patent/PT92517A/pt

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
    • G08B13/2465—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
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Burglar Alarm Systems (AREA)
PT9251789A 1988-12-10 1989-12-07 Dispositivo anti-fraude PT92517A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888828896A GB8828896D0 (en) 1988-12-10 1988-12-10 Anti-tamper device

Publications (1)

Publication Number Publication Date
PT92517A true PT92517A (pt) 1990-06-29

Family

ID=10648306

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9251789A PT92517A (pt) 1988-12-10 1989-12-07 Dispositivo anti-fraude

Country Status (6)

Country Link
EP (1) EP0373716A3 (no)
CA (1) CA2005068A1 (no)
FI (1) FI895870A0 (no)
GB (2) GB8828896D0 (no)
NO (1) NO894926L (no)
PT (1) PT92517A (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308482B (en) 1995-12-20 2000-03-29 Pyronix Ltd Event detection device with fault monitoring capability
GB2422970B (en) 2005-02-02 2008-09-10 Pyronix Ltd Detection apparatus
US20080278320A1 (en) 2007-05-07 2008-11-13 Sensormatic Electronics Corporation Method and system for reduction of electronic article surveillance system false alarms

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2516777A1 (de) * 1975-04-16 1976-10-28 Elmar Ing Dorner Einrichtung zum ueberwachen der bergstation eines skiliftes
US4272762A (en) * 1979-09-17 1981-06-09 Gte Laboratories Incorporated Exit-entry sensing apparatus
FR2593310B1 (fr) * 1986-01-22 1988-07-15 Stratel Dispositif anti-effraction pour installations de protection d'enceintes fermees comportant un boitier de telecommande accessible de l'exterieur
NL8600738A (nl) * 1986-03-24 1987-10-16 Nedap Nv Onderdrukking van valse alarmen als gevolg van aanraken.
GB8708167D0 (en) * 1987-04-06 1987-05-13 R V Ltd Detection apparatus

Also Published As

Publication number Publication date
EP0373716A3 (en) 1991-06-19
NO894926D0 (no) 1989-12-08
GB8915241D0 (en) 1989-08-23
EP0373716A2 (en) 1990-06-20
CA2005068A1 (en) 1990-06-10
NO894926L (no) 1990-06-11
FI895870A0 (fi) 1989-12-08
GB8828896D0 (en) 1989-01-18

Similar Documents

Publication Publication Date Title
EP3401886B1 (en) Theft detection device and method for controlling the same
US5124685A (en) Security device with retractable tether
US3691558A (en) Moving object microwave detection system
US4274088A (en) Portable alarm system
US4893005A (en) Method and apparatus for area and perimeter security with reflection counting
US9324220B2 (en) Theft detection device and method for controlling same
ATE259089T1 (de) Bewegungsempfindliche diebstahlsicherungsvorrichtung mit falschalarmverminderung
US9865147B2 (en) Collision warning system
WO2006071702A2 (en) Electronic security device and system for articles of merchandise
US20230326308A1 (en) Anti-theft device with cable attachment
KR101730452B1 (ko) 금속 차폐 검출능을 구비한 ｅａｓ 시스템에서 카트 경보를 줄이고 감도를 향상시키기 위한 시스템 및 방법
CN101681542A (zh) 用于减少电子商品防盗***错误警报的方法和***
DE69024934D1 (de) Einbruch sicherungsvorrichtung
EP0870287B1 (en) Event detection device with fault monitoring capability
PT92517A (pt) Dispositivo anti-fraude
US5594418A (en) Self-contained dual panel window screen alarm
GB2184277A (en) Intruder alarm system
EP0693207A1 (en) A method for surveillance of a glass pane
WO2021026127A1 (en) Merchandise security tag
EP1239431A2 (en) Security device particularly suitable for valuables cases
GB2610414A (en) Anti-climb system
GB2241811A (en) Alarm systems
WO2015138605A1 (en) Theft detection device and method for controlling same
JP2008026148A (ja) 通過物検知装置
CZ124096A3 (en) Piezoelectric detection system for a safety device

Legal Events

Date Code Title Description
FC3A Refusal

Effective date: 19960223