ATE421741T1 - Frequenzteiler mit variabler kapazität - Google Patents

Frequenzteiler mit variabler kapazität

Info

Publication number
ATE421741T1
ATE421741T1 AT05779761T AT05779761T ATE421741T1 AT E421741 T1 ATE421741 T1 AT E421741T1 AT 05779761 T AT05779761 T AT 05779761T AT 05779761 T AT05779761 T AT 05779761T AT E421741 T1 ATE421741 T1 AT E421741T1
Authority
AT
Austria
Prior art keywords
frequency divider
variable capacity
capacity frequency
variable
divider
Prior art date
Application number
AT05779761T
Other languages
English (en)
Inventor
Ming-Ren Lian
Ravi Todi
Kevin Coffey
Kalphathy Sundaram
Parag Gadkari
Original Assignee
Sensormatic Electronics Corp
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 Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Application granted granted Critical
Publication of ATE421741T1 publication Critical patent/ATE421741T1/de

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
    • G08B13/2405—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 characterised by the tag technology used
    • G08B13/2414—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 characterised by the tag technology used using inductive tags
    • 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
    • G08B13/2428—Tag details
    • G08B13/2431—Tag circuit details
    • 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
    • G08B13/2428—Tag details
    • G08B13/2448—Tag with at least dual detection means, e.g. combined inductive and ferromagnetic tags, dual frequencies within a single technology, tampering detection or signalling means on the tag

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Burglar Alarm Systems (AREA)
  • Filters And Equalizers (AREA)
  • Networks Using Active Elements (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
AT05779761T 2004-08-12 2005-08-08 Frequenzteiler mit variabler kapazität ATE421741T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/917,112 US7164358B2 (en) 2004-02-17 2004-08-12 Frequency divider with variable capacitance

Publications (1)

Publication Number Publication Date
ATE421741T1 true ATE421741T1 (de) 2009-02-15

Family

ID=35106678

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05779761T ATE421741T1 (de) 2004-08-12 2005-08-08 Frequenzteiler mit variabler kapazität

Country Status (6)

Country Link
US (1) US7164358B2 (de)
EP (1) EP1776678B1 (de)
AT (1) ATE421741T1 (de)
CA (1) CA2575174C (de)
DE (1) DE602005012514D1 (de)
WO (1) WO2006049667A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4813774B2 (ja) * 2004-05-18 2011-11-09 テクトロニクス・インターナショナル・セールス・ゲーエムベーハー 周波数分析装置の表示方法
KR20040072581A (ko) * 2004-07-29 2004-08-18 (주)제이씨 프로텍 전자기파 증폭중계기 및 이를 이용한 무선전력변환장치
US7696883B2 (en) * 2005-01-17 2010-04-13 Canon Kabushiki Kaisha Resonance tag, method of reversibly changing resonance characteristics of resonance circuit, and capacitive element
KR100734556B1 (ko) 2006-05-24 2007-07-24 광운대학교 산학협력단 마이크로파 광대역 능동 주파수 분주기
JP2010517145A (ja) * 2007-01-18 2010-05-20 チエツクポイント システムズ， インコーポレーテツド 非自己回復形コンデンサを有する永久に破壊可能な共振回路
US8013742B2 (en) * 2008-12-10 2011-09-06 Sensormatic Electronics, LLC Metal oxide semiconductor device for use in UHF electronic article surveillance systems
US8174388B2 (en) * 2008-12-10 2012-05-08 Sensormatic Electronics, LLC Method and system for deactivation of combination EAS/RFID tags
US20180040218A1 (en) * 2016-08-04 2018-02-08 Tyco Fire & Security Gmbh Pulsed electronic article surveillance detection system absent of a phasing requirement
US11551537B2 (en) 2019-04-11 2023-01-10 Nexite Ltd. Wireless dual-mode identification tag
CN114844532B (zh) 2019-04-11 2024-06-07 奈克赛特公司 用于无线通信标签的电容器架构
US20210091826A1 (en) * 2019-09-19 2021-03-25 Sensormatic Electronics, LLC Self-detaching anti-theft device using direct and harvested resonant energy
EP4275160A1 (de) 2021-01-11 2023-11-15 Nexite Ltd. Kontaktlose und automatische operationen eines einzelhandelsgeschäfts
US20230186239A1 (en) 2021-12-13 2023-06-15 Nexite Ltd. Systems and methods for presence estimation for missing products

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599120A (en) * 1978-05-19 1981-09-30 Philips Electronic Associated Detection system
US4670740A (en) 1985-11-04 1987-06-02 Security Tag Systems, Inc. Portable, batteryless, frequency divider consisting of inductor and diode
US5099227A (en) * 1989-07-18 1992-03-24 Indala Corporation Proximity detecting apparatus
US5065138A (en) 1990-08-03 1991-11-12 Security Tag Systems, Inc. Magnetically-coupled two-resonant-circuit, frequency divider for presence-detection-system tag
US5065137A (en) * 1990-08-03 1991-11-12 Security Tag Systems, Inc. Magnetically-coupled, two-resonant-circuit, frequency-division tag
US5266926A (en) * 1991-05-31 1993-11-30 Avid Marketing, Inc. Signal transmission and tag power consumption measurement circuit for an inductive reader
US5604485A (en) * 1993-04-21 1997-02-18 Motorola Inc. RF identification tag configurations and assemblies
US5510769A (en) * 1993-08-18 1996-04-23 Checkpoint Systems, Inc. Multiple frequency tag
US5517179A (en) * 1995-05-18 1996-05-14 Xlink Enterprises, Inc. Signal-powered frequency-dividing transponder
AUPO055296A0 (en) * 1996-06-19 1996-07-11 Integrated Silicon Design Pty Ltd Enhanced range transponder system
US6243012B1 (en) * 1996-12-31 2001-06-05 Lucent Technologies Inc. Inexpensive modulated backscatter reflector
DE19719434A1 (de) * 1997-05-12 1998-11-19 Meto International Gmbh Universelles Sicherungselement und Verfahren zu seiner Herstellung
DE10002311C1 (de) * 2000-01-20 2001-06-13 Skidata Ag Kommunikationsendgerät
DE60143429D1 (de) * 2000-05-08 2010-12-23 Checkpoint Systems Inc Radiofrequenzdetektions- und identifikationssystem
US6424263B1 (en) * 2000-12-01 2002-07-23 Microchip Technology Incorporated Radio frequency identification tag on a single layer substrate
US6541814B1 (en) * 2001-11-06 2003-04-01 Pericom Semiconductor Corp. MOS variable capacitor with controlled dC/dV and voltage drop across W of gate
JPWO2004046704A1 (ja) * 2002-11-15 2006-03-16 株式会社ルネサステクノロジ 建造物品質モニタシステム、建造物品質モニタ方法、及びそれらに用いられる半導体集積回路装置
US7199717B2 (en) * 2004-02-17 2007-04-03 Sensormatic Electronics Corporation Frequency-division marker for an electronic article surveillance system

Also Published As

Publication number Publication date
CA2575174A1 (en) 2006-05-11
US7164358B2 (en) 2007-01-16
US20050179551A1 (en) 2005-08-18
EP1776678B1 (de) 2009-01-21
CA2575174C (en) 2010-06-01
DE602005012514D1 (de) 2009-03-12
EP1776678A1 (de) 2007-04-25
WO2006049667A1 (en) 2006-05-11

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties