BE467168A - - Google Patents

Info

Publication number
BE467168A
BE467168A BE467168DA BE467168A BE 467168 A BE467168 A BE 467168A BE 467168D A BE467168D A BE 467168DA BE 467168 A BE467168 A BE 467168A
Authority
BE
Belgium
Prior art keywords
tube
circuit
amplifier
relay
resistor
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE467168A publication Critical patent/BE467168A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/08Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Amplifiers (AREA)
BE467168D BE467168A (en, 2012)

Publications (1)

Publication Number Publication Date
BE467168A true BE467168A (en, 2012)

Family

ID=118261

Family Applications (1)

Application Number Title Priority Date Filing Date
BE467168D BE467168A (en, 2012)

Country Status (1)

Country Link
BE (1) BE467168A (en, 2012)

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