EP 0578393 A2 19940112 - A key for a remote control security device.
Title (en)
A key for a remote control security device.
Title (de)
Schlüssel für Sicherheitsvorrichtung mit Fernbedienung.
Title (fr)
Une clé pour dispositif de sécurité télécommandé.
Publication
Application
Priority
GB 9214249 A 19920704
Abstract (en)
The mechanical door or ignition key has a shaft 32 and a key head 30 with a battery 42, switch 38, coding circuit 36 and RF oscillator 40. RF coupling between the shaft 52 and the oscillator 40 causes the shaft 52 to act as an RF aerial.
IPC 1-7
IPC 8 full level
G07C 9/00 (2006.01)
CPC (source: EP)
G07C 9/00944 (2013.01)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0578393 A2 19940112; EP 0578393 A3 19940302; GB 9214249 D0 19920819
DOCDB simple family (application)
EP 93304698 A 19930616; GB 9214249 A 19920704