US4069472A
(en)
*
|
1975-12-25 |
1978-01-17 |
Tokyo Shibaura Electric Co., Ltd. |
Foreground subject-identifying apparatus
|
US4212002A
(en)
*
|
1976-05-24 |
1980-07-08 |
Williamson Robert D |
Method and apparatus for selective electronic surveillance
|
US4206453A
(en)
*
|
1976-05-24 |
1980-06-03 |
Williamson Robert D |
Method and apparatus for electronic surveillance
|
US4087802A
(en)
*
|
1976-05-24 |
1978-05-02 |
Williamson Robert D |
Method and apparatus for electronic surveillance of precisely defined control zone
|
NL7708012A
(nl)
*
|
1977-07-19 |
1979-01-23 |
Nedap Nv |
Detectiestelsel.
|
US4139844A
(en)
*
|
1977-10-07 |
1979-02-13 |
Sensormatic Electronics Corporation |
Surveillance method and system with electromagnetic carrier and plural range limiting signals
|
FR2416514A1
(fr)
*
|
1978-02-03 |
1979-08-31 |
Williamson Robert |
Procede et dispositif de protection contre le vol
|
DE2833509A1
(de)
*
|
1978-07-31 |
1980-02-14 |
Siemens Ag |
Einrichtung zur identifizierung und/oder 0rtung von gegenstaenden und personen
|
US4254868A
(en)
*
|
1979-02-05 |
1981-03-10 |
Sensormatic Electronics Corporation |
Enclosure for a security tag and extraction implement
|
EP0020062B1
(en)
*
|
1979-05-18 |
1984-03-07 |
Parmeko Limited |
Method and surveillance system for detecting the presence of an e.m. wave receptor reradiator
|
US4281321A
(en)
*
|
1980-06-09 |
1981-07-28 |
Sensormatic Electronics Corporation |
Surveillance system employing a floor mat radiator
|
US4471344A
(en)
*
|
1980-10-09 |
1984-09-11 |
Ici Americas Inc. |
Dual frequency anti-theft system
|
CA1190970A
(en)
*
|
1980-10-09 |
1985-07-23 |
Harold B. Williams |
Dual frequency anti-theft system
|
JPS5768070U
(es)
*
|
1980-10-09 |
1982-04-23 |
|
|
US4430645A
(en)
*
|
1981-04-07 |
1984-02-07 |
Sensormatic Electronics Corporation |
Surveillance system employing a dual function floor mat radiator
|
US4413254A
(en)
*
|
1981-09-04 |
1983-11-01 |
Sensormatic Electronics Corporation |
Combined radio and magnetic energy responsive surveillance marker and system
|
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
|
NL8200138A
(nl)
*
|
1982-01-14 |
1983-08-01 |
Nedap Nv |
Detectiestelsel.
|
US4472641A
(en)
*
|
1983-01-28 |
1984-09-18 |
Westinghouse Electric Corp. |
Power supply apparatus
|
US4642640A
(en)
*
|
1983-04-25 |
1987-02-10 |
Sensormatic Electronics Corporation |
Signal receptor-reradiator and surveillance tag using the same
|
DE3472019D1
(en)
*
|
1983-08-01 |
1988-07-14 |
Ici America Inc |
Electronic article surveillance system
|
CA1236542A
(en)
*
|
1983-08-02 |
1988-05-10 |
Harold B. Williams |
Electronic article surveillance system having microstrip antennas
|
US4679035A
(en)
*
|
1985-07-30 |
1987-07-07 |
Sensormatic Electronics Corporation |
Tri-signal electromagnetic article surveillance system
|
US4736207A
(en)
*
|
1986-01-31 |
1988-04-05 |
Sensormatic Electronics Corporation |
Tag device and method for electronic article surveillance
|
CA1335676C
(en)
*
|
1988-01-14 |
1995-05-23 |
Akira Iga |
Portable data transmitter device and a system using the same
|
FR2645309B1
(fr)
*
|
1989-04-04 |
1991-06-07 |
Usil Flandres Artois |
Dispositif de detection du passage d'au moins un mobile en au moins un point determine de son deplacement
|
US5099227A
(en)
*
|
1989-07-18 |
1992-03-24 |
Indala Corporation |
Proximity detecting apparatus
|
US5109217A
(en)
*
|
1990-08-09 |
1992-04-28 |
Sensormatic Electronics Corporation |
Method and apparatus for enhancing detection of electronic article surveillance tags in close proximity to electrically conductive objects
|
US5206626A
(en)
*
|
1991-12-24 |
1993-04-27 |
Knogo Corporation |
Stabilized article surveillance responder
|
US5241923A
(en)
*
|
1992-07-23 |
1993-09-07 |
Pole/Zero Corporation |
Transponder control of animal whereabouts
|
US5349332A
(en)
*
|
1992-10-13 |
1994-09-20 |
Sensormatic Electronics Corportion |
EAS system with requency hopping
|
GB2306080B
(en)
*
|
1995-10-10 |
2000-02-16 |
Roke Manor Research |
Improvements in or relating to detection systems
|
RU2099789C1
(ru)
*
|
1996-07-30 |
1997-12-20 |
Кулагин Николай Павлович |
Способ обнаружения вторжения в охраняемое пространство и устройство для его осуществления
|
US6064308A
(en)
*
|
1996-10-25 |
2000-05-16 |
Pole/Zero Corporation |
RF signaling system and system for controlling the whereabouts of animals using same
|
US6446049B1
(en)
|
1996-10-25 |
2002-09-03 |
Pole/Zero Corporation |
Method and apparatus for transmitting a digital information signal and vending system incorporating same
|
US5990791A
(en)
*
|
1997-10-22 |
1999-11-23 |
William B. Spargur |
Anti-theft detection system
|
US6166643A
(en)
*
|
1997-10-23 |
2000-12-26 |
Janning; Joseph J. |
Method and apparatus for controlling the whereabouts of an animal
|
DE19754936A1
(de)
|
1997-12-10 |
1999-07-01 |
Wegmann & Co Gmbh |
Dicht- und Führungseinrichtung für hochdynamisch beschleunigte, abstandswirksame Schutzelemente
|
JPH11283178A
(ja)
*
|
1998-03-27 |
1999-10-15 |
Matsushita Electric Ind Co Ltd |
電気共振識別子、電気共振識別子検出装置および交通システム
|
ATE271244T1
(de)
|
1999-10-08 |
2004-07-15 |
Activerf Ltd |
Verbesserungen in beziehung zur sicherheiteinrichtungen
|
GB9923682D0
(en)
*
|
1999-10-08 |
1999-12-08 |
Active Rf Limited |
Improvements relating to security-pushout prevention
|
US7395548B2
(en)
*
|
2001-07-26 |
2008-07-01 |
Comsonics, Inc. |
System and method for signal validation and leakage detection
|
US6752837B2
(en)
|
2002-06-28 |
2004-06-22 |
Hewlett-Packard Development Company, L.P. |
Security tags with a reversible optical indicator
|
GB2423402B
(en)
|
2002-07-19 |
2007-01-03 |
Gatekeeper Systems |
Improvements relating to security and electronic article surveillance
|
US7034687B2
(en)
*
|
2004-04-29 |
2006-04-25 |
Comm-Engines |
Error-avoiding anti-theft surveillance system
|
JP2006287817A
(ja)
*
|
2005-04-04 |
2006-10-19 |
Tokyo Electron Ltd |
マイクロ波発生装置、マイクロ波供給装置、プラズマ処理装置及びマイクロ波発生方法
|
US20070296609A1
(en)
*
|
2006-06-21 |
2007-12-27 |
Dave Thomas |
Method and apparatus for object recognition and warning system of a primary vehicle for nearby vehicles
|
US8350720B2
(en)
*
|
2006-06-21 |
2013-01-08 |
Dave Thomas |
Method and apparatus for object recognition and warning system of a primary vehicle for nearby vehicles
|
US20090072995A1
(en)
*
|
2006-06-21 |
2009-03-19 |
Dave Thomas |
Method and apparatus for transmitting information between a primary vehicle and a secondary vehicle
|