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SNCF Mobilites
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SNCF Mobilites
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Publication of FR1001331ApublicationCriticalpatent/FR1001331A/fr
G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
G08C19/00—Electric signal transmission systems
G08C19/16—Electric signal transmission systems in which transmission is by pulses
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04Q—SELECTING
H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
H04Q9/06—Calling by using amplitude or polarity of dc
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General Physics & Mathematics
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Engineering & Computer Science
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Computer Networks & Wireless Communication
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FR1001331D1946-04-171946-04-17Procédé de télécommande électrique et appareillage mettant en oeuvre ce procédé
ExpiredFR1001331A
(fr)