NL6613507A - - Google Patents

Info

Publication number
NL6613507A
NL6613507A NL6613507A NL6613507A NL6613507A NL 6613507 A NL6613507 A NL 6613507A NL 6613507 A NL6613507 A NL 6613507A NL 6613507 A NL6613507 A NL 6613507A NL 6613507 A NL6613507 A NL 6613507A
Authority
NL
Netherlands
Application number
NL6613507A
Other versions
NL154643B (nl
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 filed Critical
Publication of NL6613507A publication Critical patent/NL6613507A/xx
Publication of NL154643B publication Critical patent/NL154643B/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
NL6613507A 1965-10-28 1966-09-23 Ontvanginrichting voor signalen, die volgens een toonfrequentiecode worden overgedragen, in het bijzonder voor telefooncentrales met toonfrequentietoetskeuze. NL154643B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1490665A CH429844A (de) 1965-10-28 1965-10-28 Empfangsanlage für nach einem Tonfrequenzcode übermittelte Signale

Publications (2)

Publication Number Publication Date
NL6613507A true NL6613507A (da) 1967-05-02
NL154643B NL154643B (nl) 1977-09-15

Family

ID=4404729

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6613507A NL154643B (nl) 1965-10-28 1966-09-23 Ontvanginrichting voor signalen, die volgens een toonfrequentiecode worden overgedragen, in het bijzonder voor telefooncentrales met toonfrequentietoetskeuze.

Country Status (3)

Country Link
CH (1) CH429844A (da)
DE (1) DE1277368C2 (da)
NL (1) NL154643B (da)

Also Published As

Publication number Publication date
CH429844A (de) 1967-02-15
NL154643B (nl) 1977-09-15
DE1277368B (de) 1968-09-12
DE1277368C2 (de) 1975-04-17

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: SIEMENS ALBIS