CH486811A - Method and circuit arrangement for fast message transmission over shortwave connections - Google Patents

Method and circuit arrangement for fast message transmission over shortwave connections

Info

Publication number
CH486811A
CH486811A CH34469A CH34469A CH486811A CH 486811 A CH486811 A CH 486811A CH 34469 A CH34469 A CH 34469A CH 34469 A CH34469 A CH 34469A CH 486811 A CH486811 A CH 486811A
Authority
CH
Switzerland
Prior art keywords
circuit arrangement
message transmission
transmission over
fast message
connections
Prior art date
Application number
CH34469A
Other languages
German (de)
Inventor
Neumann Hans-Joachim
Draeger Rolf-Joachim
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of CH486811A publication Critical patent/CH486811A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)
CH34469A 1968-01-24 1969-01-13 Method and circuit arrangement for fast message transmission over shortwave connections CH486811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1968S0113843 DE1616310A1 (en) 1968-01-24 1968-01-24 Method for fast and secure message transmission over shortwave connections

Publications (1)

Publication Number Publication Date
CH486811A true CH486811A (en) 1970-02-28

Family

ID=7532774

Family Applications (1)

Application Number Title Priority Date Filing Date
CH34469A CH486811A (en) 1968-01-24 1969-01-13 Method and circuit arrangement for fast message transmission over shortwave connections

Country Status (3)

Country Link
CH (1) CH486811A (en)
DE (1) DE1616310A1 (en)
NL (1) NL6900584A (en)

Also Published As

Publication number Publication date
DE1616310A1 (en) 1971-03-18
NL6900584A (en) 1969-07-28

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Legal Events

Date Code Title Description
PL Patent ceased