BE622951A - - Google Patents

Info

Publication number
BE622951A
BE622951A BE622951DA BE622951A BE 622951 A BE622951 A BE 622951A BE 622951D A BE622951D A BE 622951DA BE 622951 A BE622951 A BE 622951A
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 BE622951A publication Critical patent/BE622951A/xx

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
    • 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
    • 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)
  • Monitoring And Testing Of Exchanges (AREA)
BE622951D 1960-03-31 BE622951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES67855A DE1120527B (en) 1960-03-31 1960-03-31 Multi-channel message transmission system with system-specific dialing device influenced by high and low level currents

Publications (1)

Publication Number Publication Date
BE622951A true BE622951A (en)

Family

ID=7499868

Family Applications (2)

Application Number Title Priority Date Filing Date
BE602100D BE602100A (en) 1960-03-31
BE622951D BE622951A (en) 1960-03-31

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BE602100D BE602100A (en) 1960-03-31

Country Status (3)

Country Link
BE (2) BE622951A (en)
DE (1) DE1120527B (en)
SE (1) SE300447B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228314B (en) * 1964-05-29 1966-11-10 Siemens Ag Multi-channel messaging system

Also Published As

Publication number Publication date
DE1120527B (en) 1961-12-28
BE602100A (en)
SE300447B (en) 1968-04-29

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