H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/12 (2006.01) H04B 14/02 (2006.01)
Patent
CA 2219585
The invention concerns a device comprising: a voltage/frequency converter (3 to 7) which receives the input voltage and emits pulses of a frequency proportional to this voltage; an electro-optical converter (8) which transforms the electrical pulses into light pulses; an optical transmission line (L) to the input of which the light pulses are applied; an opto-electronic converter (8') which transforms the light pulses at the output of the line (L) into electrical pulses; a counter circuit (9) enabling digital data representative of the input voltage to be supplied; and a digital-analogue converter (11) which transforms the digital data into analogue output data. The invention is used in data transmission in which the data transmitted are critical and do not tolerate interference well.
Le dispositif selon l'invention comprend un convertisseur tension/fréquence (3 à 7) qui reçoit la tension d'entrée et qui fournit des impulsions de fréquence proportionnelle à ladite tension, un convertisseur électro-optique (8) qui transforme les impulsions électriques en impulsions lumineuses, une ligne de transmission optique (L) à l'entrée de laquelle sont appliquées les impulsions lumineuses, un convertisseur optoélectronique (8') qui transforme les impulsions lumineuses présentes à la sortie de la ligne (L) en impulsions électriques, un circuit de comptage (9) permettant de délivrer une information numérique représentative de la tension d'entrée et un convertisseur numérique/analogique (11) qui transforme l'information numérique en une information analogique de sortie. L'invention s'applique à la transmission d'informations dans lesquelles l'information transportée est critique et tolère mal des perturbations.
Pitot Christian
Sannino Christian
Ridout & Maybee Llp
Sextant Avionique
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