GB368227A - An improved method for the simultaneous transmission of telegraphic and telephonic signals or pictures on submarine cables - Google Patents

An improved method for the simultaneous transmission of telegraphic and telephonic signals or pictures on submarine cables

Info

Publication number
GB368227A
GB368227A GB25433/30A GB2543330A GB368227A GB 368227 A GB368227 A GB 368227A GB 25433/30 A GB25433/30 A GB 25433/30A GB 2543330 A GB2543330 A GB 2543330A GB 368227 A GB368227 A GB 368227A
Authority
GB
United Kingdom
Prior art keywords
telegraphic
pictures
improved method
simultaneous transmission
telephony
Prior art date
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.)
Expired
Application number
GB25433/30A
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB368227A publication Critical patent/GB368227A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • 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)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

368,227. Superposed telephony and telegraphy. WAGNER, K. W., 1, Franklinstrasse, Berlin. Aug. 26, 1930, No. 25433. Convention date, Sept. 6, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] In a system for superposed telegraphy and telephony or picture transmission over a long cable, the telegraph signals, occupying a frequency band outside that used for telephony or picture transmission, are always transmitted in the same direction as the other signals.
GB25433/30A 1929-09-06 1930-08-26 An improved method for the simultaneous transmission of telegraphic and telephonic signals or pictures on submarine cables Expired GB368227A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE368227X 1929-09-06

Publications (1)

Publication Number Publication Date
GB368227A true GB368227A (en) 1932-03-03

Family

ID=6318044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25433/30A Expired GB368227A (en) 1929-09-06 1930-08-26 An improved method for the simultaneous transmission of telegraphic and telephonic signals or pictures on submarine cables

Country Status (1)

Country Link
GB (1) GB368227A (en)

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