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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
Publication date
Application grantedgrantedCritical
Publication of DE327624CpublicationCriticalpatent/DE327624C/de
H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Telephonic Communication Services
(AREA)
Interface Circuits In Exchanges
(AREA)
DENDAT327624DSchaltungsanordnung zum gleichzeitigen Telegraphieren und Fernsprechen ueber ein und dieselbe Leitung
ExpiredDE327624C
(de)
Schaltungsanordnung fuer nebengeraeuschfreie Teilnehmerstationen in Fernsprechanlagen mit Waehlerbetrieb, deren Sprechtransformatoren mehrere Wicklungen besitzen