SE369013B - - Google Patents

Info

Publication number
SE369013B
SE369013B SE11338/72A SE1133872A SE369013B SE 369013 B SE369013 B SE 369013B SE 11338/72 A SE11338/72 A SE 11338/72A SE 1133872 A SE1133872 A SE 1133872A SE 369013 B SE369013 B SE 369013B
Authority
SE
Sweden
Application number
SE11338/72A
Inventor
B Trok
Original Assignee
B Trok
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 B Trok filed Critical B Trok
Priority to SE11338/72A priority Critical patent/SE369013B/xx
Publication of SE369013B publication Critical patent/SE369013B/xx

Links

Classifications

    • 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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
SE11338/72A 1972-09-01 1972-09-01 SE369013B (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE11338/72A SE369013B (cs) 1972-09-01 1972-09-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE11338/72A SE369013B (cs) 1972-09-01 1972-09-01

Publications (1)

Publication Number Publication Date
SE369013B true SE369013B (cs) 1974-07-29

Family

ID=20293783

Family Applications (1)

Application Number Title Priority Date Filing Date
SE11338/72A SE369013B (cs) 1972-09-01 1972-09-01

Country Status (1)

Country Link
SE (1) SE369013B (cs)

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