CH214050A - Touch device in an alternating current telegraphy system. - Google Patents

Touch device in an alternating current telegraphy system.

Info

Publication number
CH214050A
CH214050A CH214050DA CH214050A CH 214050 A CH214050 A CH 214050A CH 214050D A CH214050D A CH 214050DA CH 214050 A CH214050 A CH 214050A
Authority
CH
Switzerland
Prior art keywords
alternating current
touch device
telegraphy system
current telegraphy
touch
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 CH214050A publication Critical patent/CH214050A/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)
CH214050D 1938-10-21 1939-10-10 Touch device in an alternating current telegraphy system. CH214050A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE214050X 1938-10-21

Publications (1)

Publication Number Publication Date
CH214050A true CH214050A (en) 1941-03-31

Family

ID=5816600

Family Applications (1)

Application Number Title Priority Date Filing Date
CH214050D CH214050A (en) 1938-10-21 1939-10-10 Touch device in an alternating current telegraphy system.

Country Status (2)

Country Link
CH (1) CH214050A (en)
FR (1) FR869974A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE481448A (en) * 1947-02-07

Also Published As

Publication number Publication date
FR869974A (en) 1942-02-26

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