CH255840A - Method and device for the transmission of digits on a telecommunication line. - Google Patents

Method and device for the transmission of digits on a telecommunication line.

Info

Publication number
CH255840A
CH255840A CH255840DA CH255840A CH 255840 A CH255840 A CH 255840A CH 255840D A CH255840D A CH 255840DA CH 255840 A CH255840 A CH 255840A
Authority
CH
Switzerland
Prior art keywords
digits
transmission
telecommunication line
telecommunication
line
Prior art date
Application number
Other languages
French (fr)
Inventor
D Electricite Compagn Generale
Original Assignee
Comp Generale Electricite
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 Comp Generale Electricite filed Critical Comp Generale Electricite
Publication of CH255840A publication Critical patent/CH255840A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/1315—Non-ceramic binders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling
    • 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
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
CH255840D 1945-10-15 1946-05-27 Method and device for the transmission of digits on a telecommunication line. CH255840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR998500T 1945-10-15

Publications (1)

Publication Number Publication Date
CH255840A true CH255840A (en) 1948-07-15

Family

ID=9559377

Family Applications (1)

Application Number Title Priority Date Filing Date
CH255840D CH255840A (en) 1945-10-15 1946-05-27 Method and device for the transmission of digits on a telecommunication line.

Country Status (3)

Country Link
BE (1) BE465595A (en)
CH (1) CH255840A (en)
FR (1) FR998500A (en)

Also Published As

Publication number Publication date
FR998500A (en) 1952-01-18
BE465595A (en)

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