DK158420C - Elektronisk sikkerhedsudstyr - Google Patents
Elektronisk sikkerhedsudstyrInfo
- Publication number
- DK158420C DK158420C DK441978A DK441978A DK158420C DK 158420 C DK158420 C DK 158420C DK 441978 A DK441978 A DK 441978A DK 441978 A DK441978 A DK 441978A DK 158420 C DK158420 C DK 158420C
- Authority
- DK
- Denmark
- Prior art keywords
- electronic security
- security equipment
- electronic
- equipment
- security
- Prior art date
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
- G08B13/2465—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
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Burglar Alarm Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83966277 | 1977-10-05 | ||
US05/839,662 US4168496A (en) | 1977-10-05 | 1977-10-05 | Quasi-stationary noise cancellation system |
Publications (3)
Publication Number | Publication Date |
---|---|
DK441978A DK441978A (da) | 1979-04-06 |
DK158420B DK158420B (da) | 1990-05-14 |
DK158420C true DK158420C (da) | 1990-10-22 |
Family
ID=25280344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK441978A DK158420C (da) | 1977-10-05 | 1978-10-04 | Elektronisk sikkerhedsudstyr |
Country Status (13)
Country | Link |
---|---|
US (1) | US4168496A (da) |
JP (2) | JPS5477600A (da) |
AU (1) | AU518385B2 (da) |
CA (1) | CA1118865A (da) |
DE (1) | DE2843293C2 (da) |
DK (1) | DK158420C (da) |
ES (1) | ES473683A1 (da) |
FR (1) | FR2405527A1 (da) |
GB (1) | GB2005518B (da) |
IT (1) | IT1108102B (da) |
MX (1) | MX144458A (da) |
SE (1) | SE439703B (da) |
ZA (1) | ZA784992B (da) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5383995A (en) * | 1979-12-28 | 1995-01-24 | Flex Products, Inc. | Method of making optical thin flakes and inks incorporating the same |
EP0058205B1 (en) * | 1980-08-20 | 1987-01-14 | Secom Co, Ltd. | Ultrasonic warning system |
US4321586A (en) * | 1980-08-21 | 1982-03-23 | Knogo Corporation | Article theft detection |
US4539558A (en) * | 1981-11-24 | 1985-09-03 | Shin International, Inc. | Antitheft system |
WO1983003203A1 (en) * | 1982-03-15 | 1983-09-29 | Progressive Dynamics | Method and apparatus for theft detection systems |
US4535323A (en) * | 1982-03-15 | 1985-08-13 | Progressive Dynamics, Inc. | Preamplifying and signal processing method and apparatus for theft detection systems |
US4623877A (en) * | 1983-06-30 | 1986-11-18 | Knogo Corporation | Method and apparatus for detection of targets in an interrogation zone |
CA1234892A (en) * | 1984-02-16 | 1988-04-05 | Pierre Taillefer | Security tag detection system |
US4668942A (en) * | 1984-11-19 | 1987-05-26 | Progressive Dynamics, Inc. | Signal analysis apparatus including recursive filter for electromagnetic surveillance system |
US4740944A (en) * | 1985-02-19 | 1988-04-26 | Laser Magnetic Storage International Company | Optical disk phase lock loop with comb filter |
US4779077A (en) * | 1987-04-13 | 1988-10-18 | Lichtblau G J | Continuously armed high reliability pulse train processor |
US4854113A (en) * | 1987-12-29 | 1989-08-08 | Ford New Holland, Inc. | Digital noise cancellation in a metal detector |
US4975681A (en) * | 1989-12-07 | 1990-12-04 | Sensormatic Electronics Corporation | Interfering signal rejection circuitry and electronic article surveillance system and method employing same |
US5023598A (en) * | 1990-01-02 | 1991-06-11 | Pitney Bowes Inc. | Digital signal processor for electronic article gates |
US5300922A (en) * | 1990-05-29 | 1994-04-05 | Sensormatic Electronics Corporation | Swept frequency electronic article surveillance system having enhanced facility for tag signal detection |
SE9203479L (sv) * | 1992-01-20 | 1993-07-21 | Rso Corp | Saett och anordning vid elektronisk identifiering |
SE9203258L (sv) * | 1992-01-20 | 1993-07-21 | Rso Corp | Saett och anordning vid laeges- och vinkelmaetning |
SE469673B (sv) * | 1992-01-20 | 1993-08-16 | Rso Corp | Saett och anordning vid beroeringsfri avkaenning av objekt |
US5508684A (en) * | 1995-03-02 | 1996-04-16 | Becker; Richard S. | Article tag |
DE19642985A1 (de) * | 1996-10-18 | 1998-04-23 | Esselte Meto Int Gmbh | Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone |
DE19644927A1 (de) * | 1996-10-29 | 1998-04-30 | Esselte Meto Int Gmbh | Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone |
DE19647905A1 (de) * | 1996-11-20 | 1998-05-28 | Meto International Gmbh | Vorrichtung zur Überwachung eines elektronischen Sicherungselementes in einer Abfragezone |
US5790031A (en) * | 1997-01-13 | 1998-08-04 | Trw Inc. | Apparatus and method for sensing a rearward facing child seat with error detection |
US6249229B1 (en) | 1999-08-16 | 2001-06-19 | Checkpoint Systems, Inc., A Corp. Of Pennsylvania | Electronic article security system employing variable time shifts |
US6859652B2 (en) | 2000-08-02 | 2005-02-22 | Mobile Satellite Ventures, Lp | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
MXPA02001964A (es) | 2000-08-02 | 2003-07-21 | Mobile Satellite Ventures Lp | Reutilizacion de frecuencia satelital-terrestre coordinada. |
US7792488B2 (en) | 2000-12-04 | 2010-09-07 | Atc Technologies, Llc | Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength |
US6947860B2 (en) * | 2002-08-09 | 2005-09-20 | Sensormatic Electronics Corporation | Electronic article surveillance system stationary tag response canceller |
AU2002951697A0 (en) * | 2002-09-27 | 2002-10-17 | Tagsys Australia Pty Ltd | Method of Maintaining pseudo-synchranism with a finite length transmitted clock in electronic label systems |
NL1026690C2 (nl) * | 2004-07-20 | 2006-01-23 | Nedap Nv | Elektronisch detectiesysteem voor het detecteren van antidiefstal- en/of identificatielabels. |
US7460059B1 (en) * | 2006-10-25 | 2008-12-02 | Sandia Corporation | Removing interfering clutter associated with radar pulses that an airborne radar receives from a radar transponder |
JP5596927B2 (ja) * | 2009-02-06 | 2014-09-24 | アルプス電気株式会社 | 車両用携帯機 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3696379A (en) * | 1970-12-02 | 1972-10-03 | Knogo Corp | Apparatus for article theft detection |
US3743768A (en) * | 1971-04-02 | 1973-07-03 | Halliburton Co | Method and apparatus for electronically monitoring a field of view |
US3810147A (en) * | 1971-12-30 | 1974-05-07 | G Lichtblau | Electronic security system |
JPS4877695A (da) * | 1971-12-30 | 1973-10-18 | ||
US3863244A (en) * | 1972-06-14 | 1975-01-28 | Lichtblau G J | Electronic security system having improved noise discrimination |
US3885234A (en) * | 1972-03-17 | 1975-05-20 | Uro Electronics Ind Co Ltd | Ultrasonic wave type alarm device for depicting a moving object |
JPS5034500A (da) * | 1973-07-31 | 1975-04-02 | ||
JPS5623161B2 (da) * | 1973-12-24 | 1981-05-29 | ||
JPS50142057A (da) * | 1974-05-01 | 1975-11-15 | ||
US3988533A (en) * | 1974-09-30 | 1976-10-26 | Video Tek, Inc. | Video-type universal motion and intrusion detection system |
IT1032162B (it) * | 1974-12-10 | 1979-05-30 | Cnen | Apparecchiatura per registrare in una memoria traiettorie di tracce di oggetti |
-
1977
- 1977-10-05 US US05/839,662 patent/US4168496A/en not_active Expired - Lifetime
-
1978
- 1978-09-01 AU AU39471/78A patent/AU518385B2/en not_active Expired
- 1978-09-01 ZA ZA00784992A patent/ZA784992B/xx unknown
- 1978-09-14 GB GB7836791A patent/GB2005518B/en not_active Expired
- 1978-09-25 CA CA000312029A patent/CA1118865A/en not_active Expired
- 1978-09-26 ES ES473683A patent/ES473683A1/es not_active Expired
- 1978-09-26 MX MX175012A patent/MX144458A/es unknown
- 1978-09-26 FR FR7827491A patent/FR2405527A1/fr active Granted
- 1978-10-03 JP JP12125378A patent/JPS5477600A/ja active Pending
- 1978-10-04 DK DK441978A patent/DK158420C/da not_active IP Right Cessation
- 1978-10-04 DE DE2843293A patent/DE2843293C2/de not_active Expired
- 1978-10-04 IT IT69289/78A patent/IT1108102B/it active
- 1978-10-04 SE SE7810387A patent/SE439703B/sv not_active IP Right Cessation
-
1984
- 1984-05-28 JP JP1984077207U patent/JPS6020694U/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CA1118865A (en) | 1982-02-23 |
GB2005518B (en) | 1982-04-21 |
DK158420B (da) | 1990-05-14 |
DE2843293C2 (de) | 1985-12-05 |
US4168496A (en) | 1979-09-18 |
SE439703B (sv) | 1985-06-24 |
AU3947178A (en) | 1980-03-06 |
IT7869289A0 (it) | 1978-10-04 |
DK441978A (da) | 1979-04-06 |
ES473683A1 (es) | 1979-10-16 |
SE7810387L (sv) | 1979-04-06 |
FR2405527A1 (fr) | 1979-05-04 |
JPS6020694U (ja) | 1985-02-13 |
MX144458A (es) | 1981-10-16 |
IT1108102B (it) | 1985-12-02 |
ZA784992B (en) | 1979-09-26 |
FR2405527B1 (da) | 1983-01-14 |
JPS5477600A (en) | 1979-06-21 |
DE2843293A1 (de) | 1979-04-12 |
GB2005518A (en) | 1979-04-19 |
AU518385B2 (en) | 1981-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |