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EP0436875A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Common wave radio system

Assignee: Rohde and Schwarz GmbH and Co KG
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Filing: 1990-12-17
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Granted: —
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Expires: 2010-12-17
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Abstract

Abstract Translated from German Bei einem Gleichwellenfunksystem, dessen räumlich im Funkgebiet verteilt angeordnete und im wesentlichen auf gleicher Trägerfrequenz sendende Gleichwellensender (51 bis 54) synchron mit einem Gleichwellen-Nutzsignal moduliert (M1 bis M4) sind, werden mindestens zwei der Gleichwellensender gleichzeitig in einer von der Modulation des Nutzsignales unterschiedlichen Modulationsart mit mindestens einem weiteren Hilfssignal moduliert (M11 bis M14) und mindestens einer der Empfänger (E,X) besitzt eine Einrichtung zur getrennten Auswertung dieser unterschiedlichen Nutzsignal- und Hilfssignal-Modulationen. In the case of a single-frequency radio system, whose single-wave transmitters (51 to 54), which are spatially distributed in the radio area and transmit essentially at the same carrier frequency, are modulated synchronously with a single-wave useful signal (M1 to M4), at least two of the single-wave transmitters are simultaneously modulated in the useful signal Different types of modulation modulated with at least one additional auxiliary signal (M11 to M14) and at least one of the receivers (E, X) has a device for separate evaluation of these different useful signal and auxiliary signal modulations.

Inventors

  • 👤 Peter Dr.Ing. Reitberger

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 14:17
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/65; H04H20/67; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2625

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