EP 0919049 B1 20000329 - RESONANT CIRCUIT FOR ELECTRONIC ANTI-THEFT ELEMENT
Title (en)
RESONANT CIRCUIT FOR ELECTRONIC ANTI-THEFT ELEMENT
Title (de)
RESONANZSCHWINGKREIS FÜR DIE ELEKTRONISCHE ARTIKELSICHERUNG
Title (fr)
CIRCUIT A RESONANCE POUR ELEMENT ANTIVOL ELECTRONIQUE
Publication
Application
Priority
- DE 19631775 A 19960806
- DE 19705722 A 19970214
- EP 9704113 W 19970729
Abstract (en)
[origin: US6169482B1] A resonant circuit for an anti-theft element consists of two spiral printed circuits and one dielectric layer. The spiral printed circuits are wound in opposing directions and arranged on opposite sides of the dielectric layer so that they at least partly overlap. At least one selected area is provided in which a conductive path arises between the two spiral printed circuits whenever a sufficiently high energy is applied by means of an external alternating field.
IPC 1-7
IPC 8 full level
G06K 19/07 (2006.01); G06K 19/00 (2006.01); G06K 19/077 (2006.01); G08B 13/24 (2006.01); H03H 5/02 (2006.01)
CPC (source: EP US)
G08B 13/242 (2013.01 - EP US); G08B 13/2437 (2013.01 - EP US); G08B 13/2448 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IT LI NL PT SE
DOCDB simple family (publication)
US 6169482 B1 20010102; AT E191288 T1 20000415; AU 3941897 A 19980225; CA 2262585 A1 19980212; CA 2262585 C 20020226; DK 0919049 T3 20000828; EP 0919049 A1 19990602; EP 0919049 B1 20000329; ES 2147017 T3 20000816; JP 2001507141 A 20010529; JP 3974659 B2 20070912; NO 313065 B1 20020805; NO 990516 D0 19990204; NO 990516 L 19990204; PT 919049 E 20000929; WO 9806074 A1 19980212
DOCDB simple family (application)
US 14764599 A 19990208; AT 97936674 T 19970729; AU 3941897 A 19970729; CA 2262585 A 19970729; DK 97936674 T 19970729; EP 9704113 W 19970729; EP 97936674 A 19970729; ES 97936674 T 19970729; JP 50756698 A 19970729; NO 990516 A 19990204; PT 97936674 T 19970729