ES8404061A1 - Una disposicion para detectar la presencia de un objeto en una zona de vigilancia. - Google Patents
Una disposicion para detectar la presencia de un objeto en una zona de vigilancia.Info
- Publication number
- ES8404061A1 ES8404061A1 ES521268A ES521268A ES8404061A1 ES 8404061 A1 ES8404061 A1 ES 8404061A1 ES 521268 A ES521268 A ES 521268A ES 521268 A ES521268 A ES 521268A ES 8404061 A1 ES8404061 A1 ES 8404061A1
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- center frequency
- antenna
- displaced
- antennae
- 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.)
- Expired
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
-
- 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
- G08B13/2422—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 acoustic or microwave tags
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
-
- 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
Abstract
SISTEMA DE VIGILANCIA ELECTRONICA POR RADIODETECCION.SE BASA EN LA TRANSMISION (14, 16) DE DOS SEÑALES DISTINTAS DE RADIOFRECUENCIA (F1, F2), UNA DE LAS CUALES (F1) ESTA MODULADA (26) EN TONO, QUE SON CAPTADAS POR UN TRANSPONDEDOR (34) Y MEZCLADAS A TRAVES DE UNA IMPEDANCIA NO LINEAL (36) PARA SER EMITIDAS DE NUEVO A UNA FRECUENCIA IGUAL A SU SUMA, QUE ES DETECTADA (22) POR UN RECEPTOR (42) DE BANDA ESTRECHA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36771582A | 1982-04-12 | 1982-04-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8404061A1 true ES8404061A1 (es) | 1984-04-01 |
ES521268A0 ES521268A0 (es) | 1984-04-01 |
Family
ID=23448316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES521268A Granted ES521268A0 (es) | 1982-04-12 | 1983-04-06 | Una disposicion para detectar la presencia de un objeto en una zona de vigilancia. |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0091581B1 (es) |
JP (1) | JPS5932093A (es) |
KR (1) | KR910000108B1 (es) |
AT (1) | ATE34474T1 (es) |
AU (1) | AU558397B2 (es) |
BR (1) | BR8301775A (es) |
CA (1) | CA1233539A (es) |
DE (1) | DE3376703D1 (es) |
DK (1) | DK153183A (es) |
ES (1) | ES521268A0 (es) |
FI (1) | FI79625C (es) |
MC (1) | MC1521A1 (es) |
NO (1) | NO158390C (es) |
NZ (1) | NZ203790A (es) |
ZA (1) | ZA832313B (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3578228D1 (de) * | 1984-02-15 | 1990-07-19 | Esselte Meto Eas Int Ab | Verfahren und anordnung zur detektion eines anzeigegeraets. |
US5106175A (en) * | 1989-12-28 | 1992-04-21 | At&T Bell Laboratories | Locatable object suitable for underground use and methods of locating same |
JPH07167427A (ja) * | 1993-12-15 | 1995-07-04 | World Seiki:Kk | ガスバーナ装置及びガスオーブン及びガスバーナの燃焼制御方法 |
US6046682A (en) * | 1997-09-29 | 2000-04-04 | Ncr Corporation | Electronic price label including noisemaker and method of locating electronic price labels |
US7492259B2 (en) | 2005-03-29 | 2009-02-17 | Accu-Sort Systems, Inc. | RFID conveyor system and method |
US8854212B2 (en) | 2009-03-30 | 2014-10-07 | Datalogic Automation, Inc. | Radio frequency identification tag identification system |
ES2534702B1 (es) * | 2013-09-24 | 2016-02-09 | Ontech Security, Sl | Sensor de campos electrostáticos y sistema de seguridad en espacios interiores |
CN106980144A (zh) * | 2017-03-22 | 2017-07-25 | 绍兴职业技术学院 | 一种硬标签质量参数检测电路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO126975B (es) * | 1967-03-30 | 1973-04-16 | John Welsh | |
DE2551348A1 (de) * | 1975-11-15 | 1977-05-18 | Wilhelm Jank | Vorrichtung zur erkennung von resonatormarken |
GB1604220A (en) * | 1978-04-24 | 1981-12-02 | Parmeko Ltd | Detection systems |
DE3066810D1 (en) * | 1979-05-18 | 1984-04-12 | Parmeko Ltd | Method and surveillance system for detecting the presence of an e.m. wave receptor reradiator |
CA1190970A (en) * | 1980-10-09 | 1985-07-23 | Harold B. Williams | Dual frequency anti-theft system |
-
1983
- 1983-03-23 EP EP83102895A patent/EP0091581B1/en not_active Expired
- 1983-03-23 AT AT83102895T patent/ATE34474T1/de active
- 1983-03-23 DE DE8383102895T patent/DE3376703D1/de not_active Expired
- 1983-03-30 ZA ZA832313A patent/ZA832313B/xx unknown
- 1983-04-05 CA CA000425181A patent/CA1233539A/en not_active Expired
- 1983-04-06 KR KR1019830001424A patent/KR910000108B1/ko active IP Right Grant
- 1983-04-06 FI FI831167A patent/FI79625C/fi not_active IP Right Cessation
- 1983-04-06 BR BR8301775A patent/BR8301775A/pt not_active IP Right Cessation
- 1983-04-06 DK DK153183A patent/DK153183A/da not_active IP Right Cessation
- 1983-04-06 ES ES521268A patent/ES521268A0/es active Granted
- 1983-04-06 NZ NZ203790A patent/NZ203790A/en unknown
- 1983-04-07 MC MC831628A patent/MC1521A1/xx unknown
- 1983-04-08 AU AU13242/83A patent/AU558397B2/en not_active Ceased
- 1983-04-11 NO NO831275A patent/NO158390C/no unknown
- 1983-04-12 JP JP58064394A patent/JPS5932093A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
FI79625B (fi) | 1989-09-29 |
ZA832313B (en) | 1983-12-28 |
BR8301775A (pt) | 1983-12-20 |
KR910000108B1 (ko) | 1991-01-21 |
DK153183A (da) | 1983-10-13 |
JPS6356588B2 (es) | 1988-11-08 |
AU558397B2 (en) | 1987-01-29 |
NO158390C (no) | 1988-08-31 |
DK153183D0 (da) | 1983-04-06 |
AU1324283A (en) | 1983-10-20 |
FI831167A0 (fi) | 1983-04-06 |
JPS5932093A (ja) | 1984-02-21 |
NO158390B (no) | 1988-05-24 |
EP0091581A3 (en) | 1986-01-15 |
EP0091581A2 (en) | 1983-10-19 |
MC1521A1 (fr) | 1984-02-10 |
DE3376703D1 (en) | 1988-06-23 |
KR840004597A (ko) | 1984-10-22 |
EP0091581B1 (en) | 1988-05-18 |
NZ203790A (en) | 1986-06-11 |
FI831167L (fi) | 1983-10-13 |
NO831275L (no) | 1983-10-13 |
ATE34474T1 (de) | 1988-06-15 |
ES521268A0 (es) | 1984-04-01 |
CA1233539A (en) | 1988-03-01 |
FI79625C (fi) | 1990-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4471344A (en) | Dual frequency anti-theft system | |
ES8705663A1 (es) | Un sistema de respondedor. | |
GB987868A (en) | Frequency shift reflector system | |
SE9600528D0 (sv) | Givare för beröringsfri detektering av föremål | |
EA199800396A1 (ru) | Источник антенны для передачи и приема волн сверхвысокой частоты | |
DE3376703D1 (en) | Crossed beam high frequency anti-theft system | |
ES8207351A1 (es) | Perfeccionamientos en un sistema para el reconocimiento de articulos | |
ATE265726T1 (de) | Sicherheitssystem zur durchgangsüberwachung von artikeln | |
GB2289602A (en) | Improvements in detection systems | |
CA2075991C (en) | Security system for surveilling the passage of commodities through defined zones | |
JPS61201179A (ja) | 応答用タグの構造 | |
US4295221A (en) | Method and apparatus at one-way or two-way information link to effect interference suppression | |
RU2032223C1 (ru) | Устройство охранной сигнализации для обнаружения метки | |
CA1098200A (en) | Radar beacon apparatus | |
KR880002492B1 (ko) | 이중주파수 도난방지장치 | |
SU1584007A1 (ru) | Комбинированна антенна | |
CA2050832A1 (en) | Moving vehicle transponder | |
GB1326564A (en) | Micro-wave transmitter-reiceiver device | |
JPS6486297A (en) | Radio type warning device | |
GB1585129A (en) | Anti-pilferage device | |
IT1198055B (it) | Sistema antitaccheggio | |
GB1296410A (es) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19971001 |