CH208452A - Arrangement for pulse transmission by means of relays using alternating current, in particular for modulating carrier-frequency alternating currents in accordance with a pulse train transmitted as ringing alternating current. - Google Patents

Arrangement for pulse transmission by means of relays using alternating current, in particular for modulating carrier-frequency alternating currents in accordance with a pulse train transmitted as ringing alternating current.

Info

Publication number
CH208452A
CH208452A CH208452DA CH208452A CH 208452 A CH208452 A CH 208452A CH 208452D A CH208452D A CH 208452DA CH 208452 A CH208452 A CH 208452A
Authority
CH
Switzerland
Prior art keywords
alternating current
relays
arrangement
accordance
ringing
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft C Lorenz
Original Assignee
Lorenz C 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 Lorenz C Ag filed Critical Lorenz C Ag
Publication of CH208452A publication Critical patent/CH208452A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
CH208452D 1938-02-12 1939-02-10 Arrangement for pulse transmission by means of relays using alternating current, in particular for modulating carrier-frequency alternating currents in accordance with a pulse train transmitted as ringing alternating current. CH208452A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0094222 1938-02-12

Publications (1)

Publication Number Publication Date
CH208452A true CH208452A (en) 1940-01-31

Family

ID=7287832

Family Applications (1)

Application Number Title Priority Date Filing Date
CH208452D CH208452A (en) 1938-02-12 1939-02-10 Arrangement for pulse transmission by means of relays using alternating current, in particular for modulating carrier-frequency alternating currents in accordance with a pulse train transmitted as ringing alternating current.

Country Status (4)

Country Link
US (1) US2290909A (en)
BE (1) BE432671A (en)
CH (1) CH208452A (en)
FR (1) FR850207A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768274A (en) * 1953-10-27 1956-10-23 Gen Electric Variable resistor control system
US3389386A (en) * 1964-09-30 1968-06-18 Technical Marketing Associates Rellable monitoring system

Also Published As

Publication number Publication date
FR850207A (en) 1939-12-11
BE432671A (en)
US2290909A (en) 1942-07-28

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