CH216069A - Rufschaltung für Trägerfrequenz-Endschaltung. - Google Patents

Rufschaltung für Trägerfrequenz-Endschaltung.

Info

Publication number
CH216069A
CH216069A CH216069DA CH216069A CH 216069 A CH216069 A CH 216069A CH 216069D A CH216069D A CH 216069DA CH 216069 A CH216069 A CH 216069A
Authority
CH
Switzerland
Prior art keywords
call
carrier frequency
ringing
frequency limit
limit switching
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Aktiengesellschaft C Lorenz
Original Assignee
Lorenz C Ag
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 Lorenz C Ag filed Critical Lorenz C Ag
Publication of CH216069A publication Critical patent/CH216069A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
CH216069D 1939-12-08 1940-11-04 Rufschaltung für Trägerfrequenz-Endschaltung. CH216069A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE216069X 1939-12-08

Publications (1)

Publication Number Publication Date
CH216069A true CH216069A (de) 1941-07-31

Family

ID=5827284

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216069D CH216069A (de) 1939-12-08 1940-11-04 Rufschaltung für Trägerfrequenz-Endschaltung.

Country Status (2)

Country Link
BE (1) BE439749A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH216069A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
BE439749A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Similar Documents

Publication Publication Date Title
CH216069A (de) Rufschaltung für Trägerfrequenz-Endschaltung.
US2510271A (en) Power line carrier telephone system
US1678203A (en) Communicating and switching system
US2310749A (en) Singaling system
AT126063B (de) Resonanzrelaisschaltung, insbesondere für den Tonfrequenzruf in Fernsprechleitungen.
GB403571A (en) Improvements in carrier current signalling systems
US1451767A (en) Composite ringer for multiplex-transmission systems
DE744288C (de) Verfahren zur Rufuebermittlung in Traegerfrequenzsystemen
SU29510A1 (ru) Устройство дл взаимной блокировки двух абонентов телефонной станции системы Ц.Б.
US1570772A (en) Reduction of distortion in multiplex repeaters
DE816267C (de) Verfahren zur Schlusszeichengabe fuer stossfreie Zeichenuebertragung in Fernsprechverbindungen
US2594718A (en) Supervisory signaling circuits for carrier wave communication systems and the like
AT122213B (de) Anordnung zur selbsttätigen Ruf- und Besetztkontrolle von Hochfrequenztelephoniegeräten.
US849850A (en) Telephone system.
US1480235A (en) Carrier-wave signaling system
DE1521752U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US1837448A (en) Signaling system
DE694610C (de) Schaltungsanordnung fuer Fernmeldeanlagen, insbesondere Fernsprechanlagen
US1367590A (en) Transmission-circuits
US1434975A (en) Telephony
AT120746B (de) Schaltungsanordnung für Nebenstellenanlagen.
US2047304A (en) Signaling system
US1560610A (en) Supervisory circuits
US1538048A (en) Multiplex signaling system
US1466708A (en) Transmission system