MX2011011424A - Acoplador de fase para campos rotativos. - Google Patents

Acoplador de fase para campos rotativos.

Info

Publication number
MX2011011424A
MX2011011424A MX2011011424A MX2011011424A MX2011011424A MX 2011011424 A MX2011011424 A MX 2011011424A MX 2011011424 A MX2011011424 A MX 2011011424A MX 2011011424 A MX2011011424 A MX 2011011424A MX 2011011424 A MX2011011424 A MX 2011011424A
Authority
MX
Mexico
Prior art keywords
antenna
phase
transmit
detection
field
Prior art date
Application number
MX2011011424A
Other languages
English (en)
Inventor
Harry Oung
Zefeng Zeng
Original Assignee
Checkpoint Systems Inc
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 Checkpoint Systems Inc filed Critical Checkpoint Systems Inc
Publication of MX2011011424A publication Critical patent/MX2011011424A/es

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
    • 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
    • G08B13/2471—Antenna signal processing by receiver or emitter
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material

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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Esta invención se refiere a sistemas de supervisión electrónica de artículos (EAS) dinámicamente controlados, mediantes los cuales se pone en fase digitalmente y se impulsa activamente una disposición de elementos de antena para transmisión concurrente y se pone en fase digitalmente y se combina en la unidad receptora para mejorar la detección. En particular, la frecuencia individual y la fase de la pluralidad de señales de transmisión/recepción se varía rápidamente para permitir manipulación automatizada (dirección) del patrón de campo de transmisión y la sensibilidad del campo de recepción. La invención obtiene las siguientes características por medio del control por computadora de fase digital y dinámica: cancelación de campo lejano suficiente, rendimiento de detección libre de vacíos y detección no comprometida sin importar la orientación de la etiqueta mientras se utilizan controladores de transmisión simples para excitar las estructuras de antena, ya sea una antena de bucle o antena de núcleo de ferrita, que utiliza un acoplador de fase, por lo que permite una operación de sistema más eficiente o características adicionales tales como operación de antena de desactivador.
MX2011011424A 2009-04-30 2009-08-28 Acoplador de fase para campos rotativos. MX2011011424A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/433,375 US8933790B2 (en) 2007-06-08 2009-04-30 Phase coupler for rotating fields
PCT/US2009/055332 WO2010126549A1 (en) 2009-04-30 2009-08-28 Phase coupler for rotating fields

Publications (1)

Publication Number Publication Date
MX2011011424A true MX2011011424A (es) 2012-03-07

Family

ID=41572616

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2011011424A MX2011011424A (es) 2009-04-30 2009-08-28 Acoplador de fase para campos rotativos.

Country Status (7)

Country Link
US (1) US8933790B2 (es)
EP (1) EP2425489A1 (es)
CN (1) CN102484318B (es)
AU (1) AU2009345122A1 (es)
CA (1) CA2760436A1 (es)
MX (1) MX2011011424A (es)
WO (1) WO2010126549A1 (es)

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US10391871B2 (en) * 2014-01-10 2019-08-27 Witricity Corporation Controlling current flow path in wireless electric vehicle charging systems for mitigating RF radiated emissions
CN105437437A (zh) * 2014-06-12 2016-03-30 关卡系统股份有限公司 铸造有集成线缆的片材
US9831960B2 (en) 2014-12-05 2017-11-28 Qualcomm Incorporated Systems and methods for reducing transmission interference
JP6557874B2 (ja) * 2015-05-25 2019-08-14 パナソニックＩｐマネジメント株式会社 無線通信装置および無線通信方法
FR3053498B1 (fr) * 2016-07-01 2019-06-28 Biolog-id Procede de mise en oeuvre d'un inventaire d'une pluralite de conteneurs biologiques et portique associe

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Also Published As

Publication number Publication date
WO2010126549A1 (en) 2010-11-04
CN102484318A (zh) 2012-05-30
CN102484318B (zh) 2015-03-25
AU2009345122A1 (en) 2011-12-08
CA2760436A1 (en) 2010-11-04
US20090261976A1 (en) 2009-10-22
EP2425489A1 (en) 2012-03-07
US8933790B2 (en) 2015-01-13

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