NL297012A - - Google Patents

Info

Publication number
NL297012A
NL297012A NL297012DA NL297012A NL 297012 A NL297012 A NL 297012A NL 297012D A NL297012D A NL 297012DA NL 297012 A NL297012 A NL 297012A
Authority
NL
Netherlands
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 NL297012A publication Critical patent/NL297012A/xx
Priority claimed from DEST19626A external-priority patent/DE1166288B/de
Priority claimed from DEST21796A external-priority patent/DE1211286B/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of 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
    • H04Q1/444—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
NL297012D 1962-08-23 NL297012A (enrdf_load_stackoverflow)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEST19626A DE1166288B (de) 1962-08-23 1962-08-23 Mehrfrequenz-Code-Signalverfahren und Schaltungsanordnung zu seiner Durchfuehrung
FR945054A FR1366483A (fr) 1962-08-23 1963-08-20 Méthode de signalisation à fréquences multiples
DEST21796A DE1211286B (de) 1964-03-06 1964-03-06 Mehrfrequenz-Code-Zwangslaufsignalverfahren mit Durchsignalisierung fuer Fernmelde-, insbesondere Fernsprechanlagen

Publications (1)

Publication Number Publication Date
NL297012A true NL297012A (enrdf_load_stackoverflow)

Family

ID=27212463

Family Applications (1)

Application Number Title Priority Date Filing Date
NL297012D NL297012A (enrdf_load_stackoverflow) 1962-08-23

Country Status (2)

Country Link
FR (1) FR1366483A (enrdf_load_stackoverflow)
NL (1) NL297012A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR1366483A (fr) 1964-07-10

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