CH270404A - Device for retransmission of alternating current signals. - Google Patents

Device for retransmission of alternating current signals.

Info

Publication number
CH270404A
CH270404A CH270404DA CH270404A CH 270404 A CH270404 A CH 270404A CH 270404D A CH270404D A CH 270404DA CH 270404 A CH270404 A CH 270404A
Authority
CH
Switzerland
Prior art keywords
retransmission
alternating current
current signals
signals
alternating
Prior art date
Application number
Other languages
French (fr)
Inventor
D Electricite Compagn Generale
Original Assignee
Comp Generale Electricite
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 Comp Generale Electricite filed Critical Comp Generale Electricite
Publication of CH270404A publication Critical patent/CH270404A/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/42—Circuits for by-passing of ringing signals
CH270404D 1943-12-22 1947-08-25 Device for retransmission of alternating current signals. CH270404A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR986988T 1943-12-22

Publications (1)

Publication Number Publication Date
CH270404A true CH270404A (en) 1950-08-31

Family

ID=9538574

Family Applications (1)

Application Number Title Priority Date Filing Date
CH270404D CH270404A (en) 1943-12-22 1947-08-25 Device for retransmission of alternating current signals.

Country Status (3)

Country Link
CH (1) CH270404A (en)
FR (1) FR986988A (en)
NL (2) NL116168B (en)

Also Published As

Publication number Publication date
NL116168B (en)
NL60456C (en)
FR986988A (en) 1951-08-07

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