AU530083B2 – Loop antennas for electronic security system
– Google Patents
AU530083B2 – Loop antennas for electronic security system
– Google Patents
Loop antennas for electronic security system
Info
Publication number
AU530083B2
AU530083B2
AU62989/80A
AU6298980A
AU530083B2
AU 530083 B2
AU530083 B2
AU 530083B2
AU 62989/80 A
AU62989/80 A
AU 62989/80A
AU 6298980 A
AU6298980 A
AU 6298980A
AU 530083 B2
AU530083 B2
AU 530083B2
Authority
AU
Australia
Prior art keywords
security system
loop antennas
electronic security
electronic
antennas
Prior art date
1979-11-15
Legal status (The legal status 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 status listed.)
Ceased
Application number
AU62989/80A
Other versions
AU6298980A
(en
Inventor
George Jay Lichtblau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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.)
1979-11-15
Filing date
1980-10-06
Publication date
1983-06-30
1980-10-06
Application filed by Individual
filed
Critical
Individual
1981-06-04
Publication of AU6298980A
publication
Critical
patent/AU6298980A/en
1983-06-30
Application granted
granted
Critical
1983-06-30
Publication of AU530083B2
publication
Critical
patent/AU530083B2/en
2000-10-06
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G08B13/2465—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
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
H01Q7/04—Screened antennas
AU62989/80A
1979-11-15
1980-10-06
Loop antennas for electronic security system
Ceased
AU530083B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US094429
1979-11-15
US06/094,429
US4251808A
(en)
1979-11-15
1979-11-15
Shielded balanced loop antennas for electronic security systems
Publications (2)
Publication Number
Publication Date
AU6298980A
AU6298980A
(en)
1981-06-04
AU530083B2
true
AU530083B2
(en)
1983-06-30
Family
ID=22245143
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU62989/80A
Ceased
AU530083B2
(en)
1979-11-15
1980-10-06
Loop antennas for electronic security system
Country Status (13)
Country
Link
US
(1)
US4251808A
(en)
JP
(1)
JPS5683000A
(en)
AU
(1)
AU530083B2
(en)
CA
(1)
CA1148630A
(en)
DE
(1)
DE3043026A1
(en)
DK
(1)
DK158686C
(en)
ES
(2)
ES496218A0
(en)
FR
(1)
FR2470976A1
(en)
GB
(1)
GB2063569B
(en)
IT
(1)
IT1129351B
(en)
MX
(1)
MX148678A
(en)
SE
(1)
SE445498B
(en)
ZA
(1)
ZA806639B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
AU608720B2
(en)
*
1988-07-29
1991-04-11
Knogo Corporation
Load isolated article surveillance system and antenna assembly
AU640464B2
(en)
*
1990-02-28
1993-08-26
Esselte Meto International Produktions Gmbh
Detection apparatus for security systems
Families Citing this family (60)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CA1138955A
(en)
*
1979-09-14
1983-01-04
Edward R. Fearon
Anti-shoplifting system
US4373163A
(en)
*
1980-07-14
1983-02-08
I.D. Engineering, Inc.
Loop antenna for security systems
US4384281A
(en)
*
1980-10-31
1983-05-17
Knogo Corporation
Theft detection apparatus using saturable magnetic targets
US4342999A
(en)
*
1980-11-25
1982-08-03
Rca Corporation
Loop antenna arrangements for inclusion in a television receiver
USRE32627E
(en)
*
1981-09-10
1988-03-22
Sensormatic Electronics Corporation
Electrical surveillance apparatus with moveable antenna elements
US4394645A
(en)
*
1981-09-10
1983-07-19
Sensormatic Electronics Corporation
Electrical surveillance apparatus with moveable antenna elements
AU1152083A
(en)
*
1983-01-03
1984-08-02
Shin, M.
Anti-shoplifting system
US4531117A
(en)
*
1983-07-05
1985-07-23
Minnesota Mining And Manufacturing Company
Variable frequency RF electronic surveillance system
US4509039A
(en)
*
1983-07-05
1985-04-02
Minnesota Mining And Manufacturing Company
Shielded, closely spaced transmit-receiver antennas for electronic article surveillance system
US4609911A
(en)
*
1983-07-05
1986-09-02
Minnesota Mining And Manufacturing Company
Variable frequency RF electronic surveillance system
US4642613A
(en)
*
1984-03-16
1987-02-10
Knogo Corporation
Electronic theft detection apparatus with responder elements on protected articles
US4751516A
(en)
*
1985-01-10
1988-06-14
Lichtblau G J
Antenna system for magnetic and resonant circuit detection
AU633247B2
(en)
*
1985-01-10
1993-01-28
Checkpoint Systems, Inc.
Antenna system for magnetic and resonant circuit detection
US4647910A
(en)
*
1985-09-17
1987-03-03
Allied Corporation
Selector for AC magnetic inductive field receiver coils
US4728938A
(en)
*
1986-01-10
1988-03-01
Checkpoint Systems, Inc.
Security tag deactivation system
US4769631A
(en)
*
1986-06-30
1988-09-06
Sensormatic Electronics Corporation
Method, system and apparatus for magnetic surveillance of articles
JPS63236401A
(en)
*
1987-03-25
1988-10-03
Kokusai Electric Co Ltd
Composite loop antenna for inductive radio
US4779077A
(en)
*
1987-04-13
1988-10-18
Lichtblau G J
Continuously armed high reliability pulse train processor
US4872018A
(en)
*
1987-08-31
1989-10-03
Monarch Marking Systems, Inc.
Multiple loop antenna
US4972198A
(en)
*
1987-08-31
1990-11-20
Monarch Marking Systems, Inc.
Multiple loop antenna
US5103235A
(en)
*
1988-12-30
1992-04-07
Checkpoint Systems, Inc.
Antenna structure for an electronic article surveillance system
US4999641A
(en)
*
1989-09-01
1991-03-12
Monarch Marking Systems, Inc.
Magnetic antenna system having independently controllable electrical field shielding and magnetic field balance
US5051726A
(en)
*
1990-08-14
1991-09-24
Sensormatic Electronics Corporation
Electronic article surveillance system with antenna array for enhanced field falloff
NL9100397A
(en)
*
1991-03-06
1992-10-01
Nedap Nv
ASYMMETRICAL ANTENNA FOR SHOP THEFT DETECTION SYSTEMS.
US5142292A
(en)
*
1991-08-05
1992-08-25
Checkpoint Systems, Inc.
Coplanar multiple loop antenna for electronic article surveillance systems
US5442334A
(en)
*
1992-07-20
1995-08-15
Stoplift Corporation
Security system having deactivatable security tag
US5404147A
(en)
*
1992-10-28
1995-04-04
Sensormatic Electronics Corporation
EAS system loop antenna having three loops of different area
US5373301A
(en)
*
1993-01-04
1994-12-13
Checkpoint Systems, Inc.
Transmit and receive antenna having angled crossover elements
ATE169776T1
(en)
*
1993-07-13
1998-08-15
Actron Entwicklungs Ag
ANTENNA DEVICE
US5694139A
(en)
*
1994-06-28
1997-12-02
Sony Corporation
Short-distance communication antenna and methods of manufacturing and using the short-distance communication antenna
EP0703637A1
(en)
1994-09-23
1996-03-27
Actron Entwicklungs AG
Antenna for an electronic surveillance system
BR9609286A
(en)
*
1995-05-30
1999-05-11
Sensormatic Electronics Corp
Eas system antenna configuration to provide better interrogation field distribution
US5602556A
(en)
*
1995-06-07
1997-02-11
Check Point Systems, Inc.
Transmit and receive loop antenna
US5825335A
(en)
*
1995-10-23
1998-10-20
Kubota Corporation
Sheet antenna apparatus
US5653192A
(en)
*
1996-03-06
1997-08-05
Alfa Laval Agri Inc.
Livestock identification apparatus
EP0892969A4
(en)
*
1996-04-10
2000-12-06
Sentry Technology Corp
Electronic article surveillance system
US5914692A
(en)
*
1997-01-14
1999-06-22
Checkpoint Systems, Inc.
Multiple loop antenna with crossover element having a pair of spaced, parallel conductors for electrically connecting the multiple loops
DE19732254A1
(en)
*
1997-07-26
1999-02-11
Kaba Benzing Gmbh
Arrangement for transferring magnetic signals between the arrangement and a mobile communications partner, e.g. for monitoring and access control systems
US6611783B2
(en)
2000-01-07
2003-08-26
Nocwatch, Inc.
Attitude indicator and activity monitoring device
EP1158601A1
(en)
*
2000-05-15
2001-11-28
Häni Prolectron Ag
Support device with an antenna with low sensitivity
US7030750B2
(en)
2002-07-16
2006-04-18
Bert Taeho Lee
Detachable entrance and exit gate with a combined commodity burglarproofing and small arms detecting system
US6900727B2
(en)
2002-07-16
2005-05-31
Bert Taeho Lee
Weapon detector system
KR200298223Y1
(en)
*
2002-09-11
2002-12-16
태호 리 버트
An entrance and exit gate structure of commodity burglarproof system having weapon detecting
US20040102870A1
(en)
*
2002-11-26
2004-05-27
Andersen Scott Paul
RFID enabled paper rolls and system and method for tracking inventory
JP4804365B2
(en)
2004-02-19
2011-11-02
コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ
Method and apparatus for transmitting the presence of an emergency without uniquely identifying the source of communication
US7591415B2
(en)
*
2004-09-28
2009-09-22
3M Innovative Properties Company
Passport reader for processing a passport having an RFID element
US20070252001A1
(en)
*
2006-04-25
2007-11-01
Kail Kevin J
Access control system with RFID and biometric facial recognition
NZ591383A
(en)
2008-09-04
2013-08-30
Allflex Usa Inc
Combination full-duplex and half-duplex electronic identification tag
US8493185B2
(en)
*
2009-10-09
2013-07-23
Aleis Pty Ltd
Radio frequency identification reader antenna having a dynamically adjustable Q-factor
NZ599877A
(en)
*
2009-10-09
2014-03-28
Allflex Usa Inc
Hdx demodulator
US8854188B2
(en)
*
2009-11-04
2014-10-07
Allflex Usa, Inc.
Signal cancelling transmit/receive multi-loop antenna for a radio frequency identification reader
US20120139730A1
(en)
*
2010-12-03
2012-06-07
Metrologic Instruments, Inc.
Electronic article surveillance system
CA2828750C
(en)
2011-04-25
2017-01-03
Conocophillips Company
In situ radio frequency catalytic upgrading
WO2013013680A1
(en)
*
2011-07-22
2013-01-31
MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V.
Antenna and antenna arrangement for magnetic resonance applications
WO2013055962A1
(en)
*
2011-10-11
2013-04-18
Senseonics, Incorporated
Electrodynamic field strength triggering system
US9577349B2
(en)
2015-06-29
2017-02-21
Near Field Magnetics, Inc.
Near-field magnetic communication antenna
DE102017105649A1
(en)
*
2017-03-16
2018-09-20
Bundesdruckerei Gmbh
RFID reader and method for its production
US11277028B2
(en)
2017-05-26
2022-03-15
Nucurrent, Inc.
Wireless electrical energy transmission system for flexible device orientation
US11283303B2
(en)
*
2020-07-24
2022-03-22
Nucurrent, Inc.
Area-apportioned wireless power antenna for maximized charging volume
US11695302B2
(en)
2021-02-01
2023-07-04
Nucurrent, Inc.
Segmented shielding for wide area wireless power transmitter
Family Cites Families (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB419783A
(en)
*
1933-02-02
1934-11-19
Marconi Wireless Telegraph Co
Improvements in and relating to wireless receiving apparatus
US2391026A
(en)
*
1943-11-15
1945-12-18
Standard Telephones Cables Ltd
Shielded loop antenna
JPS4327094Y1
(en)
*
1964-02-25
1968-11-09
US3863244A
(en)
*
1972-06-14
1975-01-28
Lichtblau G J
Electronic security system having improved noise discrimination
US3810147A
(en)
*
1971-12-30
1974-05-07
G Lichtblau
Electronic security system
US3967161A
(en)
*
1972-06-14
1976-06-29
Lichtblau G J
A multi-frequency resonant tag circuit for use with an electronic security system having improved noise discrimination
US3973263A
(en)
*
1973-04-20
1976-08-03
The United States Of America As Represented By The Secretary Of The Navy
Sensitivity improvement of spaced-loop antenna by capacitive gap loading
JPS5046062A
(en)
*
1973-08-28
1975-04-24
JPS5226879A
(en)
*
1975-08-26
1977-02-28
Nippon Telegr & Teleph Corp
Method of measuring phase constants in waveguides
US4243980A
(en)
*
1978-02-17
1981-01-06
Lichtblau G J
Antenna system for electronic security installations
US4260990A
(en)
*
1979-11-08
1981-04-07
Lichtblau G J
Asymmetrical antennas for use in electronic security systems
1979
1979-11-15
US
US06/094,429
patent/US4251808A/en
not_active
Expired – Lifetime
1980
1980-10-06
AU
AU62989/80A
patent/AU530083B2/en
not_active
Ceased
1980-10-10
CA
CA000362129A
patent/CA1148630A/en
not_active
Expired
1980-10-23
ES
ES496218A
patent/ES496218A0/en
active
Granted
1980-10-29
ZA
ZA00806639A
patent/ZA806639B/en
unknown
1980-10-30
IT
IT68658/80A
patent/IT1129351B/en
active
1980-11-11
MX
MX184713A
patent/MX148678A/en
unknown
1980-11-12
JP
JP15834080A
patent/JPS5683000A/en
active
Granted
1980-11-14
SE
SE8007986A
patent/SE445498B/en
not_active
IP Right Cessation
1980-11-14
DK
DK489380A
patent/DK158686C/en
active
1980-11-14
FR
FR8024264A
patent/FR2470976A1/en
active
Granted
1980-11-14
GB
GB8036676A
patent/GB2063569B/en
not_active
Expired
1980-11-14
DE
DE19803043026
patent/DE3043026A1/en
active
Granted
1981
1981-11-16
ES
ES507188A
patent/ES507188A0/en
active
Granted
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
AU608720B2
(en)
*
1988-07-29
1991-04-11
Knogo Corporation
Load isolated article surveillance system and antenna assembly
AU640464B2
(en)
*
1990-02-28
1993-08-26
Esselte Meto International Produktions Gmbh
Detection apparatus for security systems
Also Published As
Publication number
Publication date
GB2063569A
(en)
1981-06-03
FR2470976B1
(en)
1984-11-23
SE445498B
(en)
1986-06-23
ES8202958A1
(en)
1982-02-16
JPS5683000A
(en)
1981-07-07
DE3043026C2
(en)
1990-02-22
DK158686C
(en)
1991-02-25
IT8068658D0
(en)
1980-10-30
MX148678A
(en)
1983-05-27
JPH0230553B2
(en)
1990-07-06
IT1129351B
(en)
1986-06-04
DK158686B
(en)
1990-07-02
FR2470976A1
(en)
1981-06-12
DE3043026A1
(en)
1981-05-21
AU6298980A
(en)
1981-06-04
ES8302369A1
(en)
1982-12-16
ZA806639B
(en)
1981-11-25
CA1148630A
(en)
1983-06-21
GB2063569B
(en)
1983-06-22
SE8007986L
(en)
1981-05-16
ES507188A0
(en)
1982-12-16
DK489380A
(en)
1981-05-16
US4251808A
(en)
1981-02-17
ES496218A0
(en)
1982-02-16
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