BE663295A - - Google Patents

Info

Publication number
BE663295A
BE663295A BE663295DA BE663295A BE 663295 A BE663295 A BE 663295A BE 663295D A BE663295D A BE 663295DA BE 663295 A BE663295 A BE 663295A
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
Application filed filed Critical
Publication of BE663295A publication Critical patent/BE663295A/xx

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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)
BE663295D 1964-04-30 1965-04-30 BE663295A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES90866A DE1194458B (de) 1964-04-30 1964-04-30 Schaltungsanordnung zur UEbermittlung von Kennzeichen ueber Zweidrahtleitungen in Fernmelde-, insbesondere Fernsprechanlagen

Publications (1)

Publication Number Publication Date
BE663295A true BE663295A (enrdf_load_html_response) 1965-11-03

Family

ID=7516130

Family Applications (1)

Application Number Title Priority Date Filing Date
BE663295D BE663295A (enrdf_load_html_response) 1964-04-30 1965-04-30

Country Status (3)

Country Link
BE (1) BE663295A (enrdf_load_html_response)
DE (1) DE1194458B (enrdf_load_html_response)
NL (1) NL6503915A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714417C2 (de) * 1977-03-31 1986-01-30 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Übertragung von Signalen in beiden Richtungen über Signalleitungen in Fernmelde-, insbesondere Fernsprechanlagen

Also Published As

Publication number Publication date
DE1194458B (de) 1965-06-10
NL6503915A (enrdf_load_html_response) 1965-11-01

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