GB537966A - Improvements to carrier wave communication systems - Google Patents

Improvements to carrier wave communication systems

Info

Publication number
GB537966A
GB537966A GB783/40A GB78340A GB537966A GB 537966 A GB537966 A GB 537966A GB 783/40 A GB783/40 A GB 783/40A GB 78340 A GB78340 A GB 78340A GB 537966 A GB537966 A GB 537966A
Authority
GB
United Kingdom
Prior art keywords
level
currents
speech
prefix
receiver
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
GB783/40A
Other languages
English (en)
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB537966A publication Critical patent/GB537966A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
GB783/40A 1940-01-13 1940-01-13 Improvements to carrier wave communication systems Expired GB537966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB283600X 1940-01-13

Publications (1)

Publication Number Publication Date
GB537966A true GB537966A (en) 1941-07-15

Family

ID=10274419

Family Applications (1)

Application Number Title Priority Date Filing Date
GB783/40A Expired GB537966A (en) 1940-01-13 1940-01-13 Improvements to carrier wave communication systems

Country Status (4)

Country Link
BE (1) BE476736A (enrdf_load_stackoverflow)
CH (1) CH283600A (enrdf_load_stackoverflow)
FR (1) FR958687A (enrdf_load_stackoverflow)
GB (1) GB537966A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR958687A (enrdf_load_stackoverflow) 1950-03-17
BE476736A (enrdf_load_stackoverflow)
CH283600A (fr) 1952-06-15

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