CH331705A - Receiving amplifier for carrier frequency systems for the common amplification of a frequency band and an individual frequency outside it - Google Patents

Receiving amplifier for carrier frequency systems for the common amplification of a frequency band and an individual frequency outside it

Info

Publication number
CH331705A
CH331705A CH331705DA CH331705A CH 331705 A CH331705 A CH 331705A CH 331705D A CH331705D A CH 331705DA CH 331705 A CH331705 A CH 331705A
Authority
CH
Switzerland
Prior art keywords
frequency
receiving amplifier
systems
outside
individual
Prior art date
Application number
Other languages
German (de)
Inventor
Helmut Dipl Ing Sippel
Kurt Dipl Ing Gehrlein
Original Assignee
Felten & Guilleaume Gmbh
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 Felten & Guilleaume Gmbh filed Critical Felten & Guilleaume Gmbh
Publication of CH331705A publication Critical patent/CH331705A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
    • 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
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
CH331705D 1954-06-21 1955-06-17 Receiving amplifier for carrier frequency systems for the common amplification of a frequency band and an individual frequency outside it CH331705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE331705X 1954-06-21

Publications (1)

Publication Number Publication Date
CH331705A true CH331705A (en) 1958-07-31

Family

ID=6198638

Family Applications (1)

Application Number Title Priority Date Filing Date
CH331705D CH331705A (en) 1954-06-21 1955-06-17 Receiving amplifier for carrier frequency systems for the common amplification of a frequency band and an individual frequency outside it

Country Status (4)

Country Link
BE (1) BE539151A (en)
CH (1) CH331705A (en)
FR (1) FR1126293A (en)
GB (1) GB803662A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116277B (en) * 1959-09-12 1961-11-02 Sueddeutsche Telefon App Kabel Radio intercom for wired or wired communications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116277B (en) * 1959-09-12 1961-11-02 Sueddeutsche Telefon App Kabel Radio intercom for wired or wired communications

Also Published As

Publication number Publication date
FR1126293A (en) 1956-11-19
BE539151A (en)
GB803662A (en) 1958-10-29

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