NL161904C - THEFT DETECTION SYSTEM. - Google Patents

THEFT DETECTION SYSTEM.

Info

Publication number: NL161904C
Authority: NL; Netherlands
Prior art keywords: detection system; theft detection; theft; detection
Prior art date: 1973-04-13

Application number

NLAANVRAGE7404466,A

Other languages

Dutch (nl)

Original Assignee

Knogo 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.)

1973-04-13

Publication of NL161904C publication Critical patent/NL161904C/en

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
- G08B13/2465—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

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)
Burglar Alarm Systems (AREA)
Geophysics And Detection Of Objects (AREA)

NLAANVRAGE7404466,A 1973-04-13 THEFT DETECTION SYSTEM. NL161904C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US351019A US3868669A (en)	1973-04-13	1973-04-13	Reduction of false alarms in electronic theft detection systems

Publications (1)

Publication Number	Publication Date
NL161904C true NL161904C (en)

Family

ID=23379246

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7404466,A NL161904C (en)	1973-04-13		THEFT DETECTION SYSTEM.
NL7404466.A NL161904B (en)	1973-04-13	1974-04-02	THEFT DETECTION SYSTEM.

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
NL7404466.A NL161904B (en)	1973-04-13	1974-04-02	THEFT DETECTION SYSTEM.

Country Status (12)

Country	Link
US (1)	US3868669A (en)
JP (1)	JPS5752637B2 (en)
AU (1)	AU474729B2 (en)
BE (1)	BE813708A (en)
CA (1)	CA1023034A (en)
DE (1)	DE2417928C3 (en)
FR (1)	FR2228258B1 (en)
GB (1)	GB1440398A (en)
IT (1)	IT1018645B (en)
NL (2)	NL161904B (en)
SE (1)	SE397145B (en)
ZA (1)	ZA742089B (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4063230A (en) *	1975-06-12	1977-12-13	The Magnavox Company	Balanced field theft detection system
US4016553A (en) *	1975-06-27	1977-04-05	Knogo Corporation	Article detection system with near field electromagnetic wave control
US4045778A (en) *	1976-02-23	1977-08-30	Wagner Electric Corporation	Dual channel wide-band frequency modulated keyable control circuit and keying circuit therefor
US4095214A (en) *	1976-06-17	1978-06-13	Knogo Corporation	Electronic monitoring system and responder device
US4117466A (en) *	1977-03-14	1978-09-26	Lichtblau G J	Beat frequency interference rejection circuit
NL7708012A (en) *	1977-07-19	1979-01-23	Nedap Nv	DETECTION SYSTEM.
US4135184A (en) *	1977-08-31	1979-01-16	Knogo Corporation	Electronic theft detection system for monitoring wide passageways
ZA7994B (en) *	1978-01-11	1980-01-30	Tag Radionics Ltd	Presence sensing system
DK145169C (en) *	1978-08-09	1983-02-21	Security Prod Int	PLANT FOR REGISTERING A PASSAGE OF AN OBJECT THROUGH A PRESERVED AREA
ATE6552T1 (en) *	1979-05-18	1984-03-15	Parmeko Limited	METHOD AND MONITORING SYSTEM FOR DETECTING THE PRESENCE OF AN ELECTROMAGNETIC SIGNAL RECEIVER-TRANSMITTER.
US4532511A (en) *	1979-10-12	1985-07-30	Lemelson Jerome H	Automatic vehicle identification system and method
US4281321A (en) *	1980-06-09	1981-07-28	Sensormatic Electronics Corporation	Surveillance system employing a floor mat radiator
US4321586A (en) *	1980-08-21	1982-03-23	Knogo Corporation	Article theft detection
US4481428A (en) *	1981-05-19	1984-11-06	Security Tag Systems, Inc.	Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation
USRE32627E (en) *	1981-09-10	1988-03-22	Sensormatic Electronics Corporation	Electrical surveillance apparatus with moveable antenna elements
NL8202951A (en) *	1982-07-21	1984-02-16	Nedap Nv	ABSORPTION DETECTION SYSTEM.
US4623877A (en)	1983-06-30	1986-11-18	Knogo Corporation	Method and apparatus for detection of targets in an interrogation zone
NL8600738A (en) *	1986-03-24	1987-10-16	Nedap Nv	Suppression of false alarms due to touch.
US4794470A (en) *	1986-06-25	1988-12-27	Media Security Incorporated And Associates	Security system for protecting information
US4812822A (en) *	1987-08-31	1989-03-14	Monarch Marking Systems, Inc.	Electronic article surveillance system utilizing synchronous integration
NL9100026A (en) *	1991-01-09	1992-08-03	Texas Instruments Holland	INTERESTING STATION FOR IDENTIFYING OBJECTS PROCESSED OVER A TRANSPORTATION TRACK.
NL9100110A (en) *	1991-01-23	1992-08-17	Texas Instruments Holland	INTERESTING STATION FOR IDENTIFICATION PURPOSES WITH SEPARATE TRANSMITTER AND RECEIVER ANTENNAS.
NL9100111A (en) *	1991-01-23	1992-08-17	Texas Instruments Holland	ANTENNA SYSTEM FOR AN INQUIRY STATION FOR IDENTIFYING OBJECTS.
US5349332A (en) *	1992-10-13	1994-09-20	Sensormatic Electronics Corportion	EAS system with requency hopping
GB9305085D0 (en) *	1993-03-12	1993-04-28	Esselte Meto Int Gmbh	Electronic article surveillance system with enhanced geometric arrangement
WO1995010101A1 (en) *	1993-10-05	1995-04-13	Pac/Scan, Inc.	Retail theft prevention and information device
US5661470A (en) *	1994-03-04	1997-08-26	Karr; Gerald S.	Object recognition system
DE19514601A1 (en) *	1995-04-20	1996-10-24	Esselte Meto Int Gmbh	System for electronic article monitoring, especially for the detection of resonant circuits with very different resonance frequencies
EP0892969A4 (en) *	1996-04-10	2000-12-06	Sentry Technology Corp	Electronic article surveillance system
US5790031A (en) *	1997-01-13	1998-08-04	Trw Inc.	Apparatus and method for sensing a rearward facing child seat with error detection
US5990791A (en) *	1997-10-22	1999-11-23	William B. Spargur	Anti-theft detection system
FR2828016B1 (en) *	2001-07-30	2005-03-25	Pygmalyon	ANTENNAS OF THE TYPE LOOP
US10832563B2 (en)	2017-05-01	2020-11-10	Johnson Controls Technology Company	Building security system with false alarm reduction recommendations and automated self-healing for false alarm reduction

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2794974A (en) *	1955-01-24	1957-06-04	Kidde & Co Walter	Compensation for turbulence and other efects in intruder detection systems
US3218556A (en) *	1963-03-29	1965-11-16	Sierra Research Corp	Spectrum centered receiver
US3577136A (en) *	1967-08-04	1971-05-04	Security Systems Inc	Short-range signaling system
US3465336A (en) *	1968-05-09	1969-09-02	Us Army	Doppler radar with clutter controlled filter channel
US3696379A (en) *	1970-12-02	1972-10-03	Knogo Corp	Apparatus for article theft detection
US3711848A (en) *	1971-02-10	1973-01-16	I D Eng Inc	Method of and apparatus for the detection of stolen articles
US3801977A (en) *	1971-12-07	1974-04-02	Gulf & Western Mfg Co	Ultrasonic alarm circuit
US3781860A (en) *	1972-02-14	1973-12-25	Williamson W	Method and apparatus for inhibiting article theft

0
- NL NLAANVRAGE7404466,A patent/NL161904C/en active
1973
- 1973-04-13 US US351019A patent/US3868669A/en not_active Expired - Lifetime
1974
- 1974-03-27 CA CA196,105A patent/CA1023034A/en not_active Expired
- 1974-04-01 AU AU67407/74A patent/AU474729B2/en not_active Expired
- 1974-04-01 GB GB1430274A patent/GB1440398A/en not_active Expired
- 1974-04-02 ZA ZA00742089A patent/ZA742089B/en unknown
- 1974-04-02 NL NL7404466.A patent/NL161904B/en not_active IP Right Cessation
- 1974-04-05 IT IT50160/74A patent/IT1018645B/en active
- 1974-04-10 SE SE7404939A patent/SE397145B/en unknown
- 1974-04-11 DE DE2417928A patent/DE2417928C3/en not_active Expired
- 1974-04-11 FR FR7412855A patent/FR2228258B1/fr not_active Expired
- 1974-04-12 BE BE143198A patent/BE813708A/en not_active IP Right Cessation
- 1974-04-13 JP JP49041610A patent/JPS5752637B2/ja not_active Expired

Also Published As

Publication number	Publication date
ZA742089B (en)	1975-04-30
IT1018645B (en)	1977-10-20
DE2417928B2 (en)	1977-10-27
CA1023034A (en)	1977-12-20
AU474729B2 (en)	1976-07-29
NL7404466A (en)	1974-10-15
FR2228258B1 (en)	1981-05-22
BE813708A (en)	1974-10-14
US3868669A (en)	1975-02-25
NL161904B (en)	1979-10-15
GB1440398A (en)	1976-06-23
JPS5752637B2 (en)	1982-11-09
DE2417928A1 (en)	1974-10-24
FR2228258A1 (en)	1974-11-29
JPS5010600A (en)	1975-02-03
SE397145B (en)	1977-10-17
DE2417928C3 (en)	1978-06-15
AU6740774A (en)	1975-10-02

Publication	Publication Date	Title
NL161904C (en)		THEFT DETECTION SYSTEM.
NL7413873A (en)	1975-04-25	LOCATION SYSTEM.
NL7414374A (en)	1975-01-31	TIRE CARRYING SYSTEM.
NL171388C (en)	1983-03-16	ELECTROMAGNETIC THEFT DETECTION SYSTEM.
CH554996A (en)	1974-10-15	LOCKING SYSTEM.
NL7507238A (en)	1976-12-21	SIGNALING SYSTEM.
NL7410885A (en)	1975-02-18	DISPLAY SYSTEM.
NL7410212A (en)	1975-02-18	INFORMATION PROCESSING SYSTEM.
NL183256C (en)	1988-09-01	INFORMATION PROCESSING SYSTEM.
NL7415571A (en)	1975-06-30	MULTI-PROCESSING SYSTEM.
NL183784C (en)	1989-01-16	POSITION DETECTION DEVICE.
DK139400B (en)	1979-02-12	Sonar system.
NL7407119A (en)	1975-01-06	MEMORY SYSTEM.
CH547531A (en)	1974-03-29	FIRE DETECTION SYSTEM.
AU6976974A (en)	1975-12-04	Detection system
NL7414513A (en)	1975-05-12	ALARM DEVICE.
NL7409225A (en)	1975-01-20	PULSE DETECTION SYSTEM.
NL7416653A (en)	1975-07-01	INFORMATION PROCESSING SYSTEM.
NL7409909A (en)	1975-02-12	IGNITION SYSTEM.
NL188970C (en)	1992-11-16	DETECTION CIRCUIT.
NL7414108A (en)	1975-05-07	RADAR SYSTEM.
NL7415922A (en)	1975-06-10	INDICATION SYSTEM.
NL7409142A (en)	1975-01-07	ALARM DEVICE.
CH554033A (en)	1974-09-13	IOMIZATION FIRE DETECTION DEVICE.
NL7413230A (en)	1976-04-12	FACSIMIL SYSTEM.