BE445816A - - Google Patents

Info

Publication number
BE445816A
BE445816A BE445816DA BE445816A BE 445816 A BE445816 A BE 445816A BE 445816D A BE445816D A BE 445816DA BE 445816 A BE445816 A BE 445816A
Authority
BE
Belgium
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 date
Publication of BE445816A publication Critical patent/BE445816A/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
BE445816D 1941-06-16 BE445816A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE160641X 1941-06-16

Publications (1)

Publication Number Publication Date
BE445816A true BE445816A (enrdf_load_stackoverflow) 1942-08-31

Family

ID=5681342

Family Applications (1)

Application Number Title Priority Date Filing Date
BE445816D BE445816A (enrdf_load_stackoverflow) 1941-06-16

Country Status (4)

Country Link
BE (1) BE445816A (enrdf_load_stackoverflow)
CH (1) CH226353A (enrdf_load_stackoverflow)
DE (1) DE891858C (enrdf_load_stackoverflow)
FR (1) FR882324A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE891858C (de) 1953-10-01
CH226353A (de) 1943-03-31
FR882324A (fr) 1943-05-31

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