NL26143C - - Google Patents

Info

Publication number
NL26143C
NL26143C NL26143DA NL26143C NL 26143 C NL26143 C NL 26143C NL 26143D A NL26143D A NL 26143DA NL 26143 C NL26143 C NL 26143C
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 NL26143C publication Critical patent/NL26143C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/42—Circuits for by-passing of ringing signals
    • 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)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL26143D 1927-01-04 NL26143C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE283135T 1927-01-04

Publications (1)

Publication Number Publication Date
NL26143C true NL26143C (de)

Family

ID=31944976

Family Applications (2)

Application Number Title Priority Date Filing Date
NL26143D NL26143C (de) 1927-01-04
NL39470D NL39470B (de) 1927-01-04

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL39470D NL39470B (de) 1927-01-04

Country Status (5)

Country Link
US (1) US1958166A (de)
BE (1) BE347704A (de)
DE (1) DE609601C (de)
GB (1) GB283135A (de)
NL (2) NL39470B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742806C (de) * 1938-09-01 1943-12-11 Siemens Ag UEbertragungssystem mit Pegelregulierung durch eine Steuerfrequenz, bei dem das Ansprechen des Steuerfrequenzempfaengers auf die Nutzfrequenzen verhindert ist
DE745228C (de) * 1939-07-28 1944-03-01 Siemens Ag Elektrischer Signalempfaenger
BE454346A (de) * 1943-03-08
FR996042A (fr) * 1945-04-14 1951-12-12 Perfectionnement aux signaleurs d'impulsions
BE478607A (de) * 1945-12-20
FR928242A (fr) * 1946-05-18 1947-11-21 Materiel Telephonique Systèmes de signalisation électrique
US2511617A (en) * 1946-10-11 1950-06-13 Bell Telephone Laboroatories I Power line carrier frequency telephone system
FR961481A (de) * 1947-02-21 1950-05-12
DE841765C (de) * 1948-10-02 1952-06-19 Normalzeit G M B H Schaltungsanordnung fuer Fernsprechanlagen mit Tonfrequenzwahl
BE501904A (de) * 1950-03-17
DE954519C (de) * 1951-12-13 1956-12-20 Standard Elek K Ag Schaltungsanordnung zum Empfang von Ruf- und Wahlzeichen
US2935731A (en) * 1957-02-26 1960-05-03 Richter Robert Selective signalling system

Also Published As

Publication number Publication date
NL39470B (de)
GB283135A (de) 1928-03-29
US1958166A (en) 1934-05-08
DE609601C (de) 1935-02-23
BE347704A (de)

Similar Documents

Publication Publication Date Title
FR34692E (de)
FR31237E (de)
FR34631E (de)
FR34490E (de)
FR615571A (de)
FR615662A (de)
FR34759E (de)
FR623320A (de)
FR34893E (de)
FR34895E (de)
FR34655E (de)
FR34739E (de)
BE382446A (de)
BE354771A (de)
BE346257A (de)
BE351760A (de)
BE352555A (de)
BE360932A (de)
NL39470B (de)
BE345857A (de)
BE347024A (de)
NL24830C (de)
BE355961A (de)
BE355514A (de)
BE374681A (de)