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1. WO2000039768 - DEACTIVATION ELEMENT CONFIGURATION FOR MICROWAVE-MAGNETIC EAS MARKER

Publication Number WO/2000/039768
Publication Date 06.07.2000
International Application No. PCT/US1999/030151
International Filing Date 17.12.1999
Chapter 2 Demand Filed 14.07.2000
IPC
G06K 19/06 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
G08B 13/24 2006.01
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
22Electrical actuation
24by interference with electromagnetic field distribution
CPC
G08B 13/2422
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
22Electrical actuation
24by interference with electromagnetic field distribution
2402Electronic 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
2405characterised by the tag technology used
2422using acoustic or microwave tags
G08B 13/2425
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
22Electrical actuation
24by interference with electromagnetic field distribution
2402Electronic 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
2405characterised by the tag technology used
2422using acoustic or microwave tags
2425Tag deactivation
Applicants
  • SENSORMATIC ELECTRONICS CORPORATION [US/US]; 951 Yamato Road Boca Raton, FL 33431-0700, US
Inventors
  • LIAN, Ming-Ren; US
  • BURGESS, Larry; US
Agents
  • KASHIMBA, Paul, T. ; Sensormatic Electronics Corporation 951 Yamato Road Boca Raton, FL 33431-0700, US
Priority Data
09/219,92123.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEACTIVATION ELEMENT CONFIGURATION FOR MICROWAVE-MAGNETIC EAS MARKER
(FR) CONFIGURATION A ELEMENTS DE DESACTIVATION POUR MARQUEUR MAGNETIQUE UTILISABLE DANS UN SYSTEME DE SURVEILLANCE ELECTRONIQUE A MICRO-ONDES
Abstract
(EN)
An EAS marker for use in a microwave-GMI article surveillance system includes a length of wire (20) which exhibits a giant magneto-impedance effect, and deactivation elements (24) installed along the length of the wire (20). The deactivation elements (24) exhibit semi-hard ferromagnetic properties and have a triangular profile, or alternatively exhibit acute-angle corners (28) or have edges (30) that cross the wire (20) at acute angles. The deactivation elements can be magnetized to disable the marker.
(FR)
L'invention concerne un marqueur électronique de surveillance des articles (EAS) utilisable dans un système de surveillance des articles à impédance magnétique géante (GMI) à micro-ondes comprenant une longueur de câble (20) qui présente un effet d'impédance électromagnétique géante, ainsi que des éléments de désactivation (24) placés le long du câble (20). Lesdits éléments (24) présentent des propriétés ferromagnétiques semi-dures et possèdent un profil triangulaire, des coins à angles aigus (28) ou des arêtes (30) qui croisent le câble (20) à angles aigus. Les éléments de désactivation peuvent être magnétisés pour désactiver le marqueur.
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