Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Alcatel Lucent Deutschland AG
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Standard Elektrik Lorenz AG
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Publication date
Application filed by Standard Elektrik Lorenz AGfiledCriticalStandard Elektrik Lorenz AG
Publication of DE1512968A1publicationCriticalpatent/DE1512968A1/de
H04Q1/00—Details of selecting apparatus or arrangements
H04Q1/18—Electrical details
H04Q1/30—Signalling arrangements; Manipulation of signalling currents
H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
DE196715129681967-02-011967-02-01Verfahren zur UEbertragung von Steuerzeichen zwischen Fernsprechvermittlungsstellen
PendingDE1512968A1
(de)
Verfahren und Schaltungsanordnung zur moeglichst fehlerfreien UEbertragung von binaeren impulsfoermigen Signalen ueber zeitweilig stark gestoerte Kanaele
Schaltungsanordnung zur Auswertung von Zaehlimpulsen, z. B. zur Gebuehrenerfassung mit Zwischenspeicherung der Zaehlimpulse, insbesondere fuer selbsttaetige Fernsprechanlagen
Verfahren und Schaltungsanordnung zur Nachrichtenübertragung zwischen mehreren räumlich voneinander entfrnten Unterstationen entlang einer Übertragungsstrecke