BE460564A - - Google Patents

Info

Publication number
BE460564A
BE460564A BE460564DA BE460564A BE 460564 A BE460564 A BE 460564A BE 460564D A BE460564D A BE 460564DA BE 460564 A BE460564 A BE 460564A
Authority
BE
Belgium
Application number
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.)
Publication of BE460564A publication Critical patent/BE460564A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
    • 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)
  • Transmitters (AREA)
BE460564D 1943-03-08 BE460564A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR895971T 1943-03-08
FR54361T 1943-12-04

Publications (1)

Publication Number Publication Date
BE460564A true BE460564A (fr)

Family

ID=32963915

Family Applications (1)

Application Number Title Priority Date Filing Date
BE460564D BE460564A (fr) 1943-03-08

Country Status (4)

Country Link
BE (1) BE460564A (fr)
CH (1) CH276933A (fr)
FR (1) FR54361E (fr)
GB (1) GB635481A (fr)

Also Published As

Publication number Publication date
GB635481A (en) 1950-04-12
CH276933A (fr) 1951-07-31
FR54361E (fr) 1950-03-10

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