Global Patent Index - EP 1044433 A1

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

EP 1044433 A1 20001018 (FR)

Application

EP 99900508 A 19990108

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

G07C 9/00

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