ES8705136A1 - Sistema electronico de seguridad para detectar un circuito de etiqueta resonante - Google Patents

Sistema electronico de seguridad para detectar un circuito de etiqueta resonante

Info

Publication number
ES8705136A1
ES8705136A1 ES548486A ES548486A ES8705136A1 ES 8705136 A1 ES8705136 A1 ES 8705136A1 ES 548486 A ES548486 A ES 548486A ES 548486 A ES548486 A ES 548486A ES 8705136 A1 ES8705136 A1 ES 8705136A1
Authority
ES
Spain
Prior art keywords
conductive areas
substrate
tuned circuit
spacing
indented portion
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
Application number
ES548486A
Other languages
English (en)
Other versions
ES548486A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LICHTBLAU GEORGE JA
Original Assignee
LICHTBLAU GEORGE JA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LICHTBLAU GEORGE JA filed Critical LICHTBLAU GEORGE JA
Priority to ES548486A priority Critical patent/ES8705136A1/es
Publication of ES8705136A1 publication Critical patent/ES8705136A1/es
Publication of ES548486A0 publication Critical patent/ES548486A0/es
Expired legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)

Abstract

SISTEMA ELECTRONICO DE SEGURIDAD PARA DETECTAR UN CIRCUITO DE ETIQUETA RESONANTE. CONSTA DE UN CONDENSADOR (C1) FORMADO POR DOS PLACAS (10, 12) DE CONDENSADOR DISPUESTAS EN SUPERFICIES OPUESTAS DE UN SUSTRATO (14), HECHO DE MATERIAL DIELECTRICO O DE MATERIAL ELECTRICAMENTE AISLANTE; Y DE UN INDUCTOR (L1) DISPUESTO EN SERIE CON EL CONDENSADOR, PARA PROPORCIONAR UNA UNICA FRECUENCIA DE RESONANCIA. EL INDUCTOR (L1) ESTA CONECTADO AL EXTREMO DE LA PLACA DEL CONDENSADOR (10) Y TIENE SU OTRO EXTREMO CONECTADO A UNA VIA ELECTRICA (16) A TRAVES DEL SUSTRATO (14), QUE ESTA CONECTADO A LA PLACA DE CONDENSADOR (12) A TRAVES DE UNA VIA CONDUCTORA (18). DE APLICACION EN TIENDAS Y ALMACENES PARA IMPEDIR EL ROBO DE ARTICULOS.
ES548486A 1985-11-02 1985-11-02 Sistema electronico de seguridad para detectar un circuito de etiqueta resonante Expired ES8705136A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES548486A ES8705136A1 (es) 1985-11-02 1985-11-02 Sistema electronico de seguridad para detectar un circuito de etiqueta resonante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES548486A ES8705136A1 (es) 1985-11-02 1985-11-02 Sistema electronico de seguridad para detectar un circuito de etiqueta resonante

Publications (2)

Publication Number Publication Date
ES8705136A1 true ES8705136A1 (es) 1987-04-16
ES548486A0 ES548486A0 (es) 1987-04-16

Family

ID=8490082

Family Applications (1)

Application Number Title Priority Date Filing Date
ES548486A Expired ES8705136A1 (es) 1985-11-02 1985-11-02 Sistema electronico de seguridad para detectar un circuito de etiqueta resonante

Country Status (1)

Country Link
ES (1) ES8705136A1 (es)

Also Published As

Publication number Publication date
ES548486A0 (es) 1987-04-16

Similar Documents

Publication Publication Date Title
CA2199097A1 (en) Security tag and manufacturing method
SE8505999L (sv) Resonant etikett och avaktivator for anvendning i ett elektroniskt sekerhetssystem
DK0609368T3 (da) Sikkerhedsmærke med elektrostatisk beskyttelse
US5276431A (en) Security tag for use with article having inherent capacitance
CA2184135A1 (en) Deactivateable security tag
CA2354853A1 (en) Resonant tag with a conductive composition closing an electrical circuit
EP0149240A3 (en) Resonant tag circuits useful in electronic security systems
CA2169751A1 (en) Multiple frequency tag
TW376460B (en) Doppler radar module
CA2064001A1 (en) Activatable/deactivatable security tag for use with an electronic security system
EP0041781A3 (en) Intrusion detection and alarm system
CA2137458A1 (en) Antenna for an Electronic Apparatus
GB2157500B (en) Microwave antenna
CA2007869A1 (en) Electronic article surveillance device with remote deactivation
KR900701058A (ko) 소형 포터블 통신 수신기용 안테나
US4574274A (en) Non-contact electrostatic deactivator
DK0919049T3 (da) Resonanssvingningskreds til elektronisk sikring af varer
DK595785A (da) Elektronisk sikkerhedsanlaeg med et resonansgivende etiket-kredsloeb og deaktivator til dette
DE59109253D1 (de) Vorrichtung zum energieinformationsaustausch zwischen objekten
PT78908A (en) Resonant tag circuit and deactvador for use in an electronic security system
ES8800532A1 (es) Un circuito de etiqueta resonante.
ES8800529A1 (es) Un circuito de etiqueta resonante.
ES8800525A1 (es) Un circuito de etiqueta resonante.
ES8702686A1 (es) Un circuito de etiqueta resonante.
ES8800528A1 (es) Un circuito de etiqueta resonante.

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20050128