EP 0451056 B1 19950301 - Telephonic electronic device.
Title (en)
Telephonic electronic device.
Title (de)
Telephonische elektronische Vorrichtung.
Title (fr)
Dispositif électronique téléphonique.
Publication
Application
Priority
FR 9004367 A 19900405
Abstract (en)
[origin: US5182767A] The device includes an acoustic transmitter (10), a tone generator (12), a memory (14) containing an identification code (N) and a service key (C), and an electronic circuit (16). A digital message transmitted depends on N and C and changes with each use. The time limitation moment of the device is determined. The device appears in the form of a token.
IPC 1-7
IPC 8 full level
G07F 17/28 (2006.01); G07C 9/00 (2006.01); G07F 1/06 (2006.01); G07F 7/08 (2006.01); H04M 11/00 (2006.01)
CPC (source: EP US)
G07C 9/28 (2020.01 - EP US); G07F 1/06 (2013.01 - EP US); G07F 7/0866 (2013.01 - 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 0451056 A1 19911009; EP 0451056 B1 19950301; AT E119303 T1 19950315; DE 69107652 D1 19950406; DE 69107652 T2 19950928; DK 0451056 T3 19950710; ES 2071247 T3 19950616; FR 2660776 A1 19911011; FR 2660776 B1 19940617; JP 3009751 B2 20000214; JP H0670048 A 19940311; US 5182767 A 19930126
DOCDB simple family (application)
EP 91400915 A 19910404; AT 91400915 T 19910404; DE 69107652 T 19910404; DK 91400915 T 19910404; ES 91400915 T 19910404; FR 9004367 A 19900405; JP 9980091 A 19910405; US 68055191 A 19910404