CH215251A - Circuit arrangement for telegraph systems for keying alternating current. - Google Patents

Circuit arrangement for telegraph systems for keying alternating current.

Info

Publication number
CH215251A
CH215251A CH215251DA CH215251A CH 215251 A CH215251 A CH 215251A CH 215251D A CH215251D A CH 215251DA CH 215251 A CH215251 A CH 215251A
Authority
CH
Switzerland
Prior art keywords
keying
alternating current
circuit arrangement
telegraph systems
telegraph
Prior art date
Application number
Other languages
German (de)
Inventor
Fides Gesellschaft Beschraenk
Original Assignee
Fides Gmbh
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 Fides Gmbh filed Critical Fides Gmbh
Publication of CH215251A publication Critical patent/CH215251A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
CH215251D 1939-07-25 1940-07-15 Circuit arrangement for telegraph systems for keying alternating current. CH215251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE215251X 1939-07-25

Publications (1)

Publication Number Publication Date
CH215251A true CH215251A (en) 1941-06-15

Family

ID=5823028

Family Applications (1)

Application Number Title Priority Date Filing Date
CH215251D CH215251A (en) 1939-07-25 1940-07-15 Circuit arrangement for telegraph systems for keying alternating current.

Country Status (2)

Country Link
CH (1) CH215251A (en)
FR (1) FR869596A (en)

Also Published As

Publication number Publication date
FR869596A (en) 1942-02-05

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