BE370968A - - Google Patents

Info

Publication number
BE370968A
BE370968A BE370968DA BE370968A BE 370968 A BE370968 A BE 370968A BE 370968D A BE370968D A BE 370968DA BE 370968 A BE370968 A BE 370968A
Authority
BE
Belgium
Prior art keywords
frequency
telephony
quad
band
transmission system
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE370968A publication Critical patent/BE370968A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/78—Circuit arrangements in which low-frequency speech signals proceed in one direction on the line, while speech signals proceeding in the other direction on the line are modulated on a high-frequency carrier signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
BE370968D BE370968A (cs)

Publications (1)

Publication Number Publication Date
BE370968A true BE370968A (cs)

Family

ID=42341

Family Applications (1)

Application Number Title Priority Date Filing Date
BE370968D BE370968A (cs)

Country Status (1)

Country Link
BE (1) BE370968A (cs)

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