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1. WO2000035261 - RESONANT TAG WITH A CONDUCTIVE COMPOSITION CLOSING AN ELECTRICAL CIRCUIT

Publication Number WO/2000/035261
Publication Date 15.06.2000
International Application No. PCT/US1999/026184
International Filing Date 04.11.1999
Chapter 2 Demand Filed 13.06.2000
IPC
G08B 13/00 2006.01
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
G08B 13/14 2006.01
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
02Mechanical actuation
14by lifting or attempted removal of hand-portable articles
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
G09F 3/00 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
3Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
H05K 1/16 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
1Printed circuits
16incorporating printed electric components, e.g. printed resistor, capacitor, inductor
H05K 7/02 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
7Constructional details common to different types of electric apparatus
02Arrangements of circuit components or wiring on supporting structure
CPC
G01V 15/00
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
15Tags attached to, or associated with, an object, in order to enable detection of the object
G08B 13/242
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
2414using inductive tags
242Tag deactivation
G08B 13/2431
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
2428Tag details
2431Tag circuit details
Applicants
  • CHECKPOINT SYSTEMS, INC. [US]/[US]
Inventors
  • MCKEOWN, Thomas, James
  • TOCKER, Stanley
Agents
  • KASTEN, Leslie, L., Jr.
Priority Data
09/209,17210.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RESONANT TAG WITH A CONDUCTIVE COMPOSITION CLOSING AN ELECTRICAL CIRCUIT
(FR) ETIQUETTE RESONNANTE QUI UTILISE UNE COMPOSITION ELECTRIQUEMENT CONDUCTRICE COMME INTERRUPTEUR
Abstract
(EN)
Briefly stated a tag (10) includes a dielectric substrate having first and second opposite principal surfaces. An electrical circuit having an electrically conductive pattern (18) is formed on at least one of the principal surfaces of the dielectric substrate, the conductive pattern including a gap (22) which establishes an electrical open circuit. An electrically conductive composition (24) including electro-conductive particles (24) is provided for bridging the gap in the conductive pattern to temporarily establish an electrical closed circuit which resonates when exposed to electromagnetic energy at a frequency within a predetermined frequency.
(FR)
Une étiquette (10) comprend un substrat diélectrique définissant deux faces opposées. Sur l'une au moins des faces principales du substrat diélectrique, on a réalisé un motif conducteur (18) où un intervalle (22) rend le circuit ouvert. On utilise une composition électriquement conductrice (24) contenant des particules électriquement conductrices (24) pour combler l'intervalle du motif conducteur afin d'établir temporairement un circuit électrique fermé qui résonne lorsqu'il est soumis à une énergie électromagnétique dont la fréquence se trouve dans une gamme de fréquences donnée.
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