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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Nokia Spain SA
Original Assignee
Alcatel Espana SA
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Filing date
Publication date
Application filed by Alcatel Espana SAfiledCriticalAlcatel Espana SA
Publication of ES458229A1publicationCriticalpatent/ES458229A1/es
H04Q11/00—Selecting arrangements for multiplex systems
H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Time-Division Multiplex Systems
(AREA)
Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
ES458229A1976-04-281977-04-27Una mejora en la comprobacion del funcionamiento de una cen-tral mic (modulacion por impulsos codificados).
ExpiredES458229A1
(es)
Impianto di commutazione digitale multiplex a divisione di tempo, specie impianto di commutazione telefonica pcm, con campi di accoppiamento previsti in doppio.
Schaltungsanordnung zum verbindungsaufbau in einem über pcm-zeitmultiplexleitungen verbundene zeitmultiplexvermittlungsstellen umfassenden pcm-fernmeldenetz