CH285957A - Anordnung zur Übertragung von Tonfrequenzzeichen in Fernmeldeanlagen. - Google Patents

Anordnung zur Übertragung von Tonfrequenzzeichen in Fernmeldeanlagen.

Info

Publication number
CH285957A
CH285957A CH285957DA CH285957A CH 285957 A CH285957 A CH 285957A CH 285957D A CH285957D A CH 285957DA CH 285957 A CH285957 A CH 285957A
Authority
CH
Switzerland
Prior art keywords
arrangement
transmission
audio frequency
frequency signals
telecommunication systems
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Aktiengesellschaft Sime Halske
Original Assignee
Simens & Halske Aktiengesellsc
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 by Simens & Halske Aktiengesellsc filed Critical Simens & Halske Aktiengesellsc
Publication of CH285957A publication Critical patent/CH285957A/de

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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
CH285957D 1949-04-05 1950-03-29 Anordnung zur Übertragung von Tonfrequenzzeichen in Fernmeldeanlagen. CH285957A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP38936A DE831416C (de) 1949-04-05 1949-04-05 Tonfrequenzzeichengabe in Fernmelde-, insbesondere Fernsprechanlagen

Publications (1)

Publication Number Publication Date
CH285957A true CH285957A (de) 1952-09-30

Family

ID=27797498

Family Applications (1)

Application Number Title Priority Date Filing Date
CH285957D CH285957A (de) 1949-04-05 1950-03-29 Anordnung zur Übertragung von Tonfrequenzzeichen in Fernmeldeanlagen.

Country Status (5)

Country Link
BE (1) BE494968A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH285957A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE831416C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1019909A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB695870A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
GB695870A (en) 1953-08-19
DE831416C (de) 1952-02-14
BE494968A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR1019909A (fr) 1953-01-29

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