EP 0664497 B1 19980527 - Signal for transmitting information, in particular time information over two wires in a clock installation
Title (en)
Signal for transmitting information, in particular time information over two wires in a clock installation
Title (de)
Signal zum Übertragen von Informationen, insbesondere Zeitinformationen über eine Zweidrahtleitung bei einer Uhrenanlage
Title (fr)
Signal pour la transmission d'informations, particulièrement, l'information de temps à travers deux fils dans une installation d'horloges
Publication
Application
Priority
EP 94810041 A 19940124
Abstract (en)
[origin: EP0664497A1] The master clock (2) controlling a number of slave clocks (4) incorporates a generator (5) of a frequency-modulated AC signal which is transmitted over the two-wire line (1) and decoded (6) by a microprocessor driving a control (39) e.g. for stepping the slave-clock motors. The code is preselectable by switches (35). The waveform (7) has positive half-cycles of a first frequency alternating with negative half-cycles of a second frequency, the combined duration of the two half-cycles remaining constant. The half-cycles have different amplitudes and can be transposed to provide a "digital" signal.
IPC 1-7
IPC 8 full level
G04G 9/00 (2006.01)
CPC (source: EP)
G04G 9/0011 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IE IT LI NL SE
DOCDB simple family (publication)
EP 0664497 A1 19950726; EP 0664497 B1 19980527; AT E166732 T1 19980615; DE 59406084 D1 19980702
DOCDB simple family (application)
EP 94810041 A 19940124; AT 94810041 T 19940124; DE 59406084 T 19940124