ES2106705T1 - Dispositivo divisor de frecuencia accionado mediante una señal. - Google Patents
Dispositivo divisor de frecuencia accionado mediante una señal.Info
- Publication number
- ES2106705T1 ES2106705T1 ES96650009T ES96650009T ES2106705T1 ES 2106705 T1 ES2106705 T1 ES 2106705T1 ES 96650009 T ES96650009 T ES 96650009T ES 96650009 T ES96650009 T ES 96650009T ES 2106705 T1 ES2106705 T1 ES 2106705T1
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- circuit
- resonant
- parallel
- resulting
- 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.)
- Granted
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
- G08B13/2422—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
- 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
- G08B13/2451—Specific applications combined with EAS
- G08B13/2462—Asset location systems combined with EAS
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Radar Systems Or Details Thereof (AREA)
- Burglar Alarm Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
UN DIVISOR DE FRECUENCIA PORTATIL, SIN BATERIAS, COMO LOS UTILIZADOS EN SISTEMAS DE DETECCION DE PRESENCIA PARA VIGILANCIA DE ARTICULOS O COMO LOS UTILIZADOS PARA DETERMINACION DE LOCALIZACION DE ARTICULOS, INCLUYE UN CIRCUITO RESONANTE LC (L1C1, L1-D1) CONECTADO DIRECTAMENTE A UN CIRCUITO RESONANTE LC EN PARALELO (L2-D2, L2-C2). UN CIRCUITO ES RESONANTE EN UNA PRIMERA FRECUENCIA Y EL OTRO CIRCUITO ES RESONANTE EN UNA SEGUNDA FRECUENCIA QUE ES UN COCIENTE DIVIDIDO PLURAL-ENTERO DE LA PRIMERA FRECUENCIA. EN UNA CLASE DE REALIZACIONES, CUALQUIERA O AMBOS DE LOS CIRCUITOS RESONANTES EN SERIE O EN PARALELO INCLUYE UN ELEMENTO DE CAPACITANCIA VARIABLE (D1-D2), COMO UN VARACTOR, EN EL QUE LA CAPACITANCIA VARIA DE ACUERDO CON LA TENSION A TRAVES DEL ELEMENTO DE CAPACITANCIA VARIABLE. LA VARIACION DE LA CAPACITANCIA DEL ELEMENTO DE CAPACITANCIA VARIABLE EN RESPUESTA A VARIACIONES DE ENERGIA EN EL CIRCUITO RESONANTE DE FRECUENCIA SUPERIOR RESULTANTES DE LA RADIACION ELECTROMAGNETICA RECIBIDA EN LA PRIMERA FRECUENCIA HACE QUE EL CIRCUITO RESONANTE DE FRECUENCIA INFERIOR TRANSMITA RADIACION ELECTROMAGNETICA EN LA SEGUNDA FRECUENCIA. EN OTRA CLASE DE REALIZACIONES, EL CIRCUITO EN PARALELO (L2-C2) ES RESONANTE EN LA PRIMER FRECUENCIA SUPERIOR EN EL CIRCUITO EN SERIE (L1-C1) ES RESONANTE EN LA SEGUNDA FRECUENCIA DE FRECUENCIA DIVIDIDA; EL DIVISOR DE FRECUENCIA INCLUYE UN DISPOSITIVO DE CONMUTACION SEMICONDUCTOR DE TRES TERMINALES (Q1, Q2) QUE TIENE UN TERMINAL DE CONTROL, UN TERMINAL DE REFERENCIA Y UN TERMINAL CONTROLADO, QUE ESTA CONECTADO DIRECTAMENTE A AMBOS CIRCUITOS RESONANTES (L1-C1, L2-C2) Y ENTRE LA INDUCTANCIA (L1) Y LA CAPACITANCIA (C1) DEL CIRCUITO RESONANTE EN SERIE (L1-C1) Y QUE SE CONECTA Y DESCONECTA EN RESPUESTA A VARIACIONES DE ENERGIA EN EL CIRCUITO RESONANTE EN PARALELO (L2C2) RESULTANTES DEL CIRCUITO RESONANTE EN PARALELO (L2-C2) QUE RECIBEN RADIACION ELECTROMAGNETICA EN LA PRIMERA FRECUENCIA PARA HACER QUE EL CIRCUITO RESONANTE EN SERIE (L1-C1) TRANSMITA RADIACION ELECTROMAGNETICA EN LA SEGUNDA FRECUENCIA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/443,477 US5517179A (en) | 1995-05-18 | 1995-05-18 | Signal-powered frequency-dividing transponder |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2106705T1 true ES2106705T1 (es) | 1997-11-16 |
ES2106705T3 ES2106705T3 (es) | 1998-12-16 |
Family
ID=23760945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96650009T Expired - Lifetime ES2106705T3 (es) | 1995-05-18 | 1996-04-04 | Receptor emisor, divisor de frecuencia, activado por señales. |
Country Status (12)
Country | Link |
---|---|
US (1) | US5517179A (es) |
EP (1) | EP0743625B1 (es) |
JP (1) | JP3866326B2 (es) |
CN (1) | CN1095997C (es) |
AU (1) | AU698802B2 (es) |
BR (1) | BR9602265A (es) |
CA (1) | CA2172758C (es) |
DE (2) | DE69600775T2 (es) |
DK (1) | DK0743625T3 (es) |
ES (1) | ES2106705T3 (es) |
HK (1) | HK1012108A1 (es) |
NO (1) | NO313258B1 (es) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7002475B2 (en) * | 1997-12-31 | 2006-02-21 | Intermec Ip Corp. | Combination radio frequency identification transponder (RFID tag) and magnetic electronic article surveillance (EAS) tag |
US7123129B1 (en) * | 1995-08-14 | 2006-10-17 | Intermec Ip Corp. | Modulation of the resonant frequency of a circuit using an energy field |
US6621410B1 (en) * | 1996-08-26 | 2003-09-16 | Rf Code, Inc. | System for item and orientation identification |
US6208235B1 (en) | 1997-03-24 | 2001-03-27 | Checkpoint Systems, Inc. | Apparatus for magnetically decoupling an RFID tag |
US6127929A (en) * | 1997-12-23 | 2000-10-03 | Em Microelectronic-Marin Sa | Transponder for half-duplex communication |
ATE295028T1 (de) * | 1997-12-23 | 2005-05-15 | Em Microelectronic Marin Sa | TRANSPONDER FÜR ßHALF DUPLEXß-KOMMUNIKATION |
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 |
GB9815120D0 (en) * | 1998-07-14 | 1998-09-09 | Clan Holdings Ltd | Battery-less transponder circuit |
US5959531A (en) * | 1998-07-24 | 1999-09-28 | Checkpoint Systems, Inc. | Optical interface between receiver and tag response signal analyzer in RFID system for detecting low power resonant tags |
US5955950A (en) * | 1998-07-24 | 1999-09-21 | Checkpoint Systems, Inc. | Low noise signal generator for use with an RFID system |
US6072383A (en) * | 1998-11-04 | 2000-06-06 | Checkpoint Systems, Inc. | RFID tag having parallel resonant circuit for magnetically decoupling tag from its environment |
DE10002311C1 (de) * | 2000-01-20 | 2001-06-13 | Skidata Ag | Kommunikationsendgerät |
WO2001055750A1 (en) * | 2000-01-28 | 2001-08-02 | Minarovic Joe T | Detectable transponder conduit end cap |
US6400271B1 (en) * | 2000-03-20 | 2002-06-04 | Checkpoint Systems, Inc. | Activate/deactiveable security tag with enhanced electronic protection for use with an electronic security system |
DE60143429D1 (de) * | 2000-05-08 | 2010-12-23 | Checkpoint Systems Inc | Radiofrequenzdetektions- und identifikationssystem |
JP2005165703A (ja) * | 2003-12-03 | 2005-06-23 | Hitachi Ltd | 非接触識別媒体 |
US7199717B2 (en) * | 2004-02-17 | 2007-04-03 | Sensormatic Electronics Corporation | Frequency-division marker for an electronic article surveillance system |
US7164358B2 (en) * | 2004-02-17 | 2007-01-16 | Sensormatic Electronics Corporation | Frequency divider with variable capacitance |
US7432802B2 (en) * | 2005-04-04 | 2008-10-07 | Xlink Enterprises, Inc. | Autonomous interrogating transponder for direct communications with other transponders |
US8873252B2 (en) * | 2008-03-26 | 2014-10-28 | Enphase Energy, Inc. | Method and apparatus for extending zero-voltage switching range in a DC to DC converter |
GB0921872D0 (en) * | 2009-12-15 | 2010-01-27 | Isis Innovation | Asset detection apparatus and method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH514142A (de) * | 1971-01-19 | 1971-10-15 | Woerl August | Anordnung zur Funkortung oder Funküberwachung |
US3836842A (en) * | 1973-01-22 | 1974-09-17 | Bell Canada Northern Electric | Encapsulated electrically resonant circuit and interrogating apparatus and method for finding same in various locations |
US3911534A (en) * | 1974-10-30 | 1975-10-14 | I D Engineering Inc | Anti-theft fastening device |
US4314373A (en) * | 1976-05-24 | 1982-02-02 | Harris Corporation | Passive transmitter including parametric device |
US4481428A (en) * | 1981-05-19 | 1984-11-06 | Security Tag Systems, Inc. | Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation |
US4670740A (en) * | 1985-11-04 | 1987-06-02 | Security Tag Systems, Inc. | Portable, batteryless, frequency divider consisting of inductor and diode |
US5065137A (en) * | 1990-08-03 | 1991-11-12 | Security Tag Systems, Inc. | Magnetically-coupled, two-resonant-circuit, frequency-division tag |
US5065138A (en) * | 1990-08-03 | 1991-11-12 | Security Tag Systems, Inc. | Magnetically-coupled two-resonant-circuit, frequency divider for presence-detection-system tag |
US5241298A (en) * | 1992-03-18 | 1993-08-31 | Security Tag Systems, Inc. | Electrically-and-magnetically-coupled, batteryless, portable, frequency divider |
-
1995
- 1995-05-18 US US08/443,477 patent/US5517179A/en not_active Expired - Lifetime
- 1995-10-10 CN CN95115695.0A patent/CN1095997C/zh not_active Expired - Lifetime
-
1996
- 1996-03-27 CA CA002172758A patent/CA2172758C/en not_active Expired - Fee Related
- 1996-04-03 NO NO19961370A patent/NO313258B1/no not_active IP Right Cessation
- 1996-04-04 DK DK96650009T patent/DK0743625T3/da active
- 1996-04-04 ES ES96650009T patent/ES2106705T3/es not_active Expired - Lifetime
- 1996-04-04 DE DE69600775T patent/DE69600775T2/de not_active Expired - Lifetime
- 1996-04-04 DE DE0743625T patent/DE743625T1/de active Pending
- 1996-04-04 EP EP96650009A patent/EP0743625B1/en not_active Expired - Lifetime
- 1996-05-08 AU AU52153/96A patent/AU698802B2/en not_active Ceased
- 1996-05-15 JP JP12059996A patent/JP3866326B2/ja not_active Expired - Fee Related
- 1996-05-15 BR BR9602265A patent/BR9602265A/pt not_active IP Right Cessation
-
1998
- 1998-12-10 HK HK98113052A patent/HK1012108A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2172758C (en) | 2000-01-25 |
US5517179A (en) | 1996-05-14 |
EP0743625A3 (en) | 1997-03-19 |
CN1095997C (zh) | 2002-12-11 |
DE69600775T2 (de) | 1999-06-10 |
HK1012108A1 (en) | 1999-07-23 |
NO961370L (no) | 1996-11-19 |
EP0743625B1 (en) | 1998-10-14 |
EP0743625A2 (en) | 1996-11-20 |
JP3866326B2 (ja) | 2007-01-10 |
JPH09135192A (ja) | 1997-05-20 |
DK0743625T3 (da) | 1999-06-23 |
BR9602265A (pt) | 1998-04-07 |
NO961370D0 (no) | 1996-04-03 |
CN1136171A (zh) | 1996-11-20 |
CA2172758A1 (en) | 1996-11-19 |
DE69600775D1 (de) | 1998-11-19 |
DE743625T1 (de) | 1998-01-29 |
MX9601858A (es) | 1998-06-30 |
AU5215396A (en) | 1996-11-28 |
AU698802B2 (en) | 1998-11-05 |
NO313258B1 (no) | 2002-09-02 |
ES2106705T3 (es) | 1998-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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