CH269352A - Telecommunication system. - Google Patents

Telecommunication system.

Info

Publication number
CH269352A
CH269352A CH269352DA CH269352A CH 269352 A CH269352 A CH 269352A CH 269352D A CH269352D A CH 269352DA CH 269352 A CH269352 A CH 269352A
Authority
CH
Switzerland
Prior art keywords
telecommunication system
telecommunication
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Standard Telephon Und Radio
Original Assignee
Standard Telephon & Radio 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 Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH269352A publication Critical patent/CH269352A/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
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
CH269352D 1946-01-16 1947-01-14 Telecommunication system. CH269352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1496/46A GB606596A (en) 1946-01-16 1946-01-16 Improvements in or relating to telecommunication exchange systems

Publications (1)

Publication Number Publication Date
CH269352A true CH269352A (en) 1950-06-30

Family

ID=27799321

Family Applications (1)

Application Number Title Priority Date Filing Date
CH269352D CH269352A (en) 1946-01-16 1947-01-14 Telecommunication system.

Country Status (4)

Country Link
BE (1) BE476370A (en)
CH (1) CH269352A (en)
FR (1) FR943692A (en)
GB (1) GB606596A (en)

Also Published As

Publication number Publication date
GB606596A (en) 1948-08-17
FR943692A (en) 1949-03-15
BE476370A (en)

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