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1. WO2009011732 - SYSTEM AND METHOD FOR INHIBITING DETECTION OF PARTIALLY DEACTIVATED ELECTRONIC ARTICLE SURVEILLANCE TAGS

Publication Number WO/2009/011732
Publication Date 22.01.2009
International Application No. PCT/US2008/006480
International Filing Date 20.05.2008
IPC
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
G08B 29/18 2006.01
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
29Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
18Prevention or correction of operating errors
G08B 29/26 2006.01
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
29Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
18Prevention or correction of operating errors
20Calibration, including self-calibrating arrangements
24Self-calibration, e.g. compensating for environmental drift or ageing of components
26by updating and storing reference thresholds
CPC
G08B 13/2471
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
2465Aspects related to the EAS system, e.g. system components other than tags
2468Antenna in system and the related signal processing
2471Antenna signal processing by receiver or emitter
G08B 13/2477
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
2465Aspects related to the EAS system, e.g. system components other than tags
2468Antenna in system and the related signal processing
2477Antenna or antenna activator circuit
G08B 13/2482
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
2465Aspects related to the EAS system, e.g. system components other than tags
2482EAS methods, e.g. description of flow chart of the detection procedure
G08B 29/26
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
29Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
18Prevention or correction of operating errors
20Calibration, including self-calibrating arrangements
24Self-calibration, e.g. compensating for environmental drift or ageing of components
26by updating and storing reference thresholds
Applicants
  • SENSORMATIC ELECTRONICS CORPORATION [US]/[US] (AllExceptUS)
  • DINH, Erik, Lee [US]/[US] (UsOnly)
  • SOTO, Manuel, A. [US]/[US] (UsOnly)
Inventors
  • DINH, Erik, Lee
  • SOTO, Manuel, A.
Agents
  • CONA, Frank, A.
Priority Data
11/931,17631.10.2007US
60/933,70808.06.2007US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR INHIBITING DETECTION OF PARTIALLY DEACTIVATED ELECTRONIC ARTICLE SURVEILLANCE TAGS
(FR) SYSTÈME ET PROCÉDÉ PERMETTANT L'INHIBITION DE DÉTECTION D'ÉTIQUETTES DÉSACTIVÉES AU MOYEN DE FILTRES DE DÉTECTION PRÉSENTANT UN SEUIL ADAPTATIF
Abstract
(EN)
A method, system and computer program product for inhibiting detection of deactivated tags. The method, system and computer program product include receiving a signal that includes environment noise from at least one tag, extracting signal detection information that includes a signal detection energy value at a detection frequency from the received signal, extracting signal deactivation information that includes a signal deactivation energy value at a deactivation frequency from the received signal, and determining a failure to deactivate ratio that corresponds to the signal detection energy value divided by the signal deactivation energy value. Generation of an alarm event is inhibited upon the failure to deactivate ratio being less than a selectable threshold. A noise factor is measured to adjust a selectable threshold.
(FR)
La présente invention concerne un procédé, un système et un progiciel permettant l'inhibition de détection d'étiquettes désactivées. Le procédé, système et progiciel comprennent la réception d'un signal comportant un bruit d'environnement provenant d'au moins une étiquette, l'extraction d'une information de détection de signal comportant une valeur d'énergie de détection de signal à partir du signal reçu, l'extraction d'une information de désactivation de signal comportant une valeur d'énergie de désactivation à partir du signal reçu, et la détermination d'un échec de rapport de désactivation correspondant à la valeur d'énergie de détection de signal divisé par la valeur d'énergie de désactivation de signal. La génération d'un événement d'alerte est inhibée lorsque le rapport de désactivation est inférieur au seuil sélectionnable et la génération d'un facteur de bruit pour ajuster le seuil sélectionnable.
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