EP 1456905 A1 20040915 - DEVICE FOR MONITORING TRANSMISSION ANTENNAE OF ELECTROMAGNETIC DETECTION SYSTEMS
Title (en)
DEVICE FOR MONITORING TRANSMISSION ANTENNAE OF ELECTROMAGNETIC DETECTION SYSTEMS
Title (de)
EINRICHTUNG ZUR ÜBERWACHUNG DER SENDEANTENNEN VON ELEKTROMAGNETISCHEN DETEKTIONSSYSTEMEN
Title (fr)
DISPOSITIF POUR LE PILOTAGE DES ANTENNES D'EMISSION DES SYSTEMES DE DETECTION ELECTROMAGNETIQUES
Publication
Application
Priority
- FR 0204400 W 20021217
- FR 0116766 A 20011221
Abstract (en)
[origin: WO03055005A1] The invention concerns electromagnetic detection systems designed to detect stolen objects, and comprising at least a transmission antenna and at least a reception antenna, the or each transmission antenna being powered by a power amplifier. The device consists of: at least a transmission antenna (4) proper, not frequency-tuned, at least an on/off simplified power amplifier (6) of H-bridge or half-bridge or quarter-bridge type, the transmission antenna element (4) being directly coupled to said amplifier (6), and at least an electronic powering circuit, whereof the output is connected to the amplifier.
IPC 1-7
IPC 8 full level
H01Q 1/24 (2006.01); H01Q 7/00 (2006.01); G08B 13/24 (2006.01); H01Q 7/04 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03055005 A1 20030703; AT E300792 T1 20050815; AU 2002364661 A1 20030709; CA 2470160 A1 20030703; CN 100452101 C 20090114; CN 1606816 A 20050413; DE 60205277 D1 20050901; DE 60205277 T2 20060608; EP 1456905 A1 20040915; EP 1456905 B1 20050727; ES 2247426 T3 20060301; FR 2834132 A1 20030627; FR 2834132 B1 20050318; HU 226181 B1 20080630; HU P0402353 A2 20050228; IL 162453 A0 20051120; IL 162453 A 20091118; JP 2005528673 A 20050922; JP 4095964 B2 20080604; MX PA04005842 A 20040910; PL 371772 A1 20050627; RU 2004122390 A 20060120; RU 2308130 C2 20071010; US 2005095983 A1 20050505; US 2008119146 A1 20080522; ZA 200404712 B 20050524
DOCDB simple family (application)
FR 0204400 W 20021217; AT 02805395 T 20021217; AU 2002364661 A 20021217; CA 2470160 A 20021217; CN 02825651 A 20021217; DE 60205277 T 20021217; EP 02805395 A 20021217; ES 02805395 T 20021217; FR 0116766 A 20011221; HU P0402353 A 20021217; IL 16245302 A 20021217; IL 16245304 A 20040610; JP 2003555619 A 20021217; MX PA04005842 A 20021217; PL 37177202 A 20021217; RU 2004122390 A 20021217; US 49926704 A 20041217; US 93637107 A 20071107; ZA 200404712 A 20040614