EP 0919050 B1 20000322 - ELECTRONIC ANTI-THEFT ELEMENT
Title (en)
ELECTRONIC ANTI-THEFT ELEMENT
Title (de)
SICHERUNGSELEMENT FÜR DIE ELEKTRONISCHE ARTIKELSICHERUNG
Title (fr)
ELEMENT ANTIVOL ELECTRONIQUE
Publication
Application
Priority
- DE 19631775 A 19960806
- DE 19705723 A 19970214
- EP 9704116 W 19970729
Abstract (en)
[origin: US6262663B1] An electronic anti-theft element consists of at least one spiral printed circuit, a capacitor and a dielectric layer arranged therebetween, or of two spiral printed circuits which are arranged on respective sides of a dielectric layer in an at least partially overlapping manner (forming resonant circuit). The object of the invention is to provide a resonant circuit which is less liable to be reactivated. For that purpose, in at least one selected area (a rated break point) of the dielectric layer a short-circuit is created between the opposite capacitor plates or spiral printed circuits when a sufficiently high energy is supplied by a magnetic alternating field. The selected area is locally reinforced, preventing the suppression of the short-circuit by mechanical stress and the reactivation of the anti-theft element.
IPC 1-7
IPC 8 full level
G08B 13/24 (2006.01)
CPC (source: EP US)
G08B 13/242 (2013.01 - EP US); G08B 13/2437 (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 6262663 B1 20010717; AT E191095 T1 20000415; AU 4203397 A 19980225; CA 2262573 A1 19980212; CA 2262573 C 20020416; EP 0919050 A1 19990602; EP 0919050 B1 20000322; ES 2147456 T3 20000901; JP 2001504604 A 20010403; JP 3634382 B2 20050330; NO 313066 B1 20020805; NO 990517 D0 19990204; NO 990517 L 19990204; PT 919050 E 20000831; WO 9806075 A1 19980212
DOCDB simple family (application)
US 14764699 A 19990208; AT 97940042 T 19970729; AU 4203397 A 19970729; CA 2262573 A 19970729; EP 9704116 W 19970729; EP 97940042 A 19970729; ES 97940042 T 19970729; JP 50756898 A 19970729; NO 990517 A 19990204; PT 97940042 T 19970729