H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 25/49 (2006.01)
Patent
CA 2536310
The system for synchronous sampling uses an encoded time signal, such as an IRIG-B signal. The IRIG-B signal is applied to an edge detector, which produces pulses based on the edges of the encoded time signal. These signals are applied to a phase-locked-loop assembly which is arranged to produce an output sampling synchronization signal which is locked to the transitions in the encoded time signal, providing a synchronous control signal for data sampling of input signals to a plurality of electronic instruments, in addition to the use of the IRIG-B signal as time-of-day clock synchronization for the plurality of instruments.
L'invention concerne un système d'échantillonnage synchrone utilisant un signal temporel codé, par exemple un signal IRIG-B. Le signal IRIG-B est appliqué à un détecteur de contours, qui produit des impulsions sur la base des contours du signal temporel codé. Ces signaux sont appliqués à un ensemble boucle à phase asservie destinée à produire un signal de synchronisation d'échantillonnage de sortie qui est asservi aux transitions dans le signal temporel codé, un signal de commande synchrone étant ainsi produit pour l'échantillonnage de données de signaux d'entrée vers une pluralité d'instruments électroniques, outre l'utilisation du signal IRIG-B comme synchronisation d'horloge heure du jour de ladite pluralité d'instruments.
Casebolt David J.
Whitehead David E.
Zweigle Gregory C.
Ridout & Maybee Llp
Schweitzer Engineering Laboratories
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