EP 0426387 A2 19910508 - Security system.
Title (en)
Security system.
Title (de)
Sicherheitssystem.
Title (fr)
Système de sécurité.
Publication
Application
Priority
GB 8924341 A 19891028
Abstract (en)
A security system for a door opening mechanism (1, 2) incorporates a key reader (3,4) for reading electrically coded keys. Presentation of an acceptably coded key to the key reader (3, 4) causes the door to be opened by actuation of the door opening mechanism (1, 2). The system includes a control device (5) which has a main key reader (6) which reads the codes of keys presented thereto and a memory in which key codes are stored along with an indication as to the acceptability of each code for actuating the door opening mechanism (1, 2) whereby door opening can be permitted or denied on presentation of a key to the reader (3, 4).
IPC 1-7
IPC 8 full level
G07C 9/00 (2006.01)
CPC (source: EP US)
G07C 9/00904 (2013.01 - EP); G07C 9/27 (2020.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0426387 A2 19910508; EP 0426387 A3 19910612; DE 426387 T1 19920116; ES 2024401 A4 19920301; GB 2237427 A 19910501; GB 2237427 B 19930707; GB 8924341 D0 19891213; GB 9023377 D0 19901205
DOCDB simple family (application)
EP 90311750 A 19901026; DE 90311750 T 19901026; ES 90311750 T 19901026; GB 8924341 A 19891028; GB 9023377 A 19901026