BE646659A - - Google Patents

Info

Publication number
BE646659A
BE646659A BE646659DA BE646659A BE 646659 A BE646659 A BE 646659A BE 646659D A BE646659D A BE 646659DA BE 646659 A BE646659 A BE 646659A
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.)
Filing date
Publication date
Priority claimed from DEST19715A external-priority patent/DE1171475B/de
Application filed filed Critical
Publication of BE646659A publication Critical patent/BE646659A/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
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
BE646659D 1962-09-14 1964-04-17 BE646659A (cs)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEST19715A DE1171475B (de) 1962-09-14 1962-09-14 Zwangslauf-Signalverfahren mit Mehrfrequenz-Codezeichen fuer Fernmelde-, insbesondere Fernsprechanlagen
NL6403559A NL6403559A (cs) 1962-09-14 1964-04-03

Publications (1)

Publication Number Publication Date
BE646659A true BE646659A (cs) 1964-10-19

Family

ID=25994121

Family Applications (1)

Application Number Title Priority Date Filing Date
BE646659D BE646659A (cs) 1962-09-14 1964-04-17

Country Status (2)

Country Link
BE (1) BE646659A (cs)
NL (1) NL6403559A (cs)

Also Published As

Publication number Publication date
NL6403559A (cs) 1965-10-04

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