EP 0118884 B1 19881117 - DEVICE AT LOCKS
Title (en)
DEVICE AT LOCKS
Publication
Application
Priority
ES 520422 A 19830308
Abstract (en)
[origin: ES8403555A1] Safety device for locks (electronic lock) with an emitter (2) having the function of a key and a sensor (1) having the function of a lock part, wherein the emitter has soft iron pins providing for the predetermined surface distribution and forming a code of a magnetically permeable but preferably inactive material in the form of excitation elements (9). In the same spatial extent as a superficial matrix, the sensor is provided with sensor elements (6) to detect the emitter code and which may be changed by a modification of the field line distribution by varying the ohmic resistance thereof said elements are magneto-resistance resistors which are magnetically controlled and preferably designed as an integrated unit. Said magneto-resistance resistors are connected after comparators which are conveniently connected for an unerasable storage of the code word and which have, when the emitter code corresponds, an output potential controlling a triggering mounting arranged downstream to release a locking device.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
G07C 9/00722 (2013.01 - EP US); Y10T 70/7057 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0118884 A1 19840919; EP 0118884 B1 19881117; AT E38733 T1 19881215; DE 3475238 D1 19881222; ES 520422 A0 19840316; ES 8403555 A1 19840316; US 4737785 A 19880412; WO 8403533 A1 19840913
DOCDB simple family (application)
EP 84102498 A 19840308; AT 84102498 T 19840308; DE 3475238 T 19840308; DE 8400045 W 19840308; ES 520422 A 19830308; US 66711084 A 19841101