EP 1044433 A1 20001018 - METHOD AND SYSTEM FOR CONTROLLING ACCESS TO A RESOURCE LIMITED TO CERTAIN TIME FRAMES
Title (en)
METHOD AND SYSTEM FOR CONTROLLING ACCESS TO A RESOURCE LIMITED TO CERTAIN TIME FRAMES
Title (de)
AUF BESTIMMTE STUNDENBEREICHE BEGRENZTES ZUGANGSKONTROLLSYSTEM ZU EINEM BETRIEBSMITTEL UND DAZUGEHÖRIGES VERFAHREN
Title (fr)
PROCEDE ET SYSTEME DE CONTROLE D'ACCES A UNE RESSOURCE LIMITE A CERTAINES PLAGES HORAIRES
Publication
Application
Priority
- FR 9900023 W 19990108
- FR 9800125 A 19980108
Abstract (en)
[origin: FR2773405A1] The invention concerns a method for controlling the access of an electronic key to an electronic lock inside a predetermined time frame which consists in; initialising the lock with a reference metering value; then, at each attempt for accessing the lock with the key: reading in the key a previously stored time frame; storing a current time value delivered by the real time clock; transmitting from the key to the lock the time frame and the current time value; and, in the lock: verifying the coherence of the current time value with the time frame; in case of coherence, authorising access, and updating the reference metering value, on the basis of the current time value transmitted; otherwise, prohibiting the key from accessing the lock.
IPC 1-7
IPC 8 full level
E05B 49/00 (2006.01); G07C 9/00 (2006.01); G09C 1/00 (2006.01)
CPC (source: EP)
G07C 9/215 (2020.01)
Citation (search report)
See references of WO 9935617A1
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
FR 2773405 A1 19990709; FR 2773405 B1 20000929; DE 69912737 D1 20031218; EP 1044433 A1 20001018; EP 1044433 B1 20031112; JP 2002501134 A 20020115; WO 9935617 A1 19990715
DOCDB simple family (application)
FR 9800125 A 19980108; DE 69912737 T 19990108; EP 99900508 A 19990108; FR 9900023 W 19990108; JP 2000527918 A 19990108