DE1295424B - Vorrichtung zum Entdecken des unberechtigten Vorbeifuehrens von Gegenstaenden an einer Kontrollstelle - Google Patents
Vorrichtung zum Entdecken des unberechtigten Vorbeifuehrens von Gegenstaenden an einer KontrollstelleInfo
- Publication number
- DE1295424B DE1295424B DE1966M0068640 DEM0068640A DE1295424B DE 1295424 B DE1295424 B DE 1295424B DE 1966M0068640 DE1966M0068640 DE 1966M0068640 DE M0068640 A DEM0068640 A DE M0068640A DE 1295424 B DE1295424 B DE 1295424B
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- transistor
- circuit
- resonance
- transmitter
- Prior art date
- 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.)
- Pending
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
-
- 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
- G08B13/242—Tag deactivation
-
- 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
- G08B13/2434—Tag housing and attachment 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
- G08B13/2437—Tag layered structure, processes for making layered tags
- G08B13/2445—Tag integrated into item to be protected, e.g. source tagging
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43738365A | 1965-03-05 | 1965-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1295424B true DE1295424B (de) | 1969-05-14 |
Family
ID=23736201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1966M0068640 Pending DE1295424B (de) | 1965-03-05 | 1966-03-04 | Vorrichtung zum Entdecken des unberechtigten Vorbeifuehrens von Gegenstaenden an einer Kontrollstelle |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE677359A (no) |
DE (1) | DE1295424B (no) |
GB (1) | GB1129761A (no) |
SE (1) | SE321883B (no) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358765A (en) | 1978-08-25 | 1982-11-09 | Stiftelsen Institutet For Mikrovagsteknik Vid Tekniska Hogskolan I Stockholm | Apparatus for producing a single side band |
EP0066403A1 (en) * | 1981-05-19 | 1982-12-08 | Automated Security (Holdings) PLC | Batteryless, portable, frequency divider |
EP0084400A2 (en) * | 1982-01-14 | 1983-07-27 | N.V. Nederlandsche Apparatenfabriek NEDAP | Detection system |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1292380A (en) * | 1969-04-02 | 1972-10-11 | Unisearch Ltd | Electronic surveillance systems |
FR2547422A1 (fr) * | 1983-06-08 | 1984-12-14 | Espace | Etiquette destinee a etre associee a un produit ou article pour permettre d'en controler la presence |
CA1240056A (en) * | 1983-12-06 | 1988-08-02 | Adrian Lewis | Tokens and token handling devices |
DE69532143T2 (de) * | 1994-06-13 | 2004-08-26 | Paxar Corp. | Sicherungsetikett aus Gewebe |
FR2742251B1 (fr) * | 1995-12-07 | 1998-02-20 | Mamou Patrick | Procede pour proteger une etiquette antivol, etiquette antivol s'y rapportant, et article notamment vestimentaire ou analogue equipe d'une telle etiquette |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE819566C (de) * | 1949-11-23 | 1951-11-05 | Paul Raphael | Elektromagnetische Sicherungsanlage zur Anzeige mitgefuehrter verborgener elektrischer Leiter |
DE969289C (de) * | 1951-06-27 | 1958-05-14 | Interessengemeinschaft Fuer Ru | Anordnung zur UEbertragung von Signalen |
-
1966
- 1966-03-01 SE SE2667/66A patent/SE321883B/xx unknown
- 1966-03-02 GB GB909066A patent/GB1129761A/en not_active Expired
- 1966-03-04 BE BE677359D patent/BE677359A/xx unknown
- 1966-03-04 DE DE1966M0068640 patent/DE1295424B/de active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE819566C (de) * | 1949-11-23 | 1951-11-05 | Paul Raphael | Elektromagnetische Sicherungsanlage zur Anzeige mitgefuehrter verborgener elektrischer Leiter |
DE969289C (de) * | 1951-06-27 | 1958-05-14 | Interessengemeinschaft Fuer Ru | Anordnung zur UEbertragung von Signalen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358765A (en) | 1978-08-25 | 1982-11-09 | Stiftelsen Institutet For Mikrovagsteknik Vid Tekniska Hogskolan I Stockholm | Apparatus for producing a single side band |
EP0066403A1 (en) * | 1981-05-19 | 1982-12-08 | Automated Security (Holdings) PLC | Batteryless, portable, frequency divider |
EP0084400A2 (en) * | 1982-01-14 | 1983-07-27 | N.V. Nederlandsche Apparatenfabriek NEDAP | Detection system |
EP0084400B1 (en) * | 1982-01-14 | 1987-08-26 | N.V. Nederlandsche Apparatenfabriek NEDAP | Detection system |
Also Published As
Publication number | Publication date |
---|---|
SE321883B (no) | 1970-03-16 |
BE677359A (no) | 1966-09-05 |
GB1129761A (en) | 1968-10-09 |
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