IN144483B - - Google Patents

Info

Publication number
IN144483B
IN144483B IN1122/CAL/1976A IN1122CA1976A IN144483B IN 144483 B IN144483 B IN 144483B IN 1122CA1976 A IN1122CA1976 A IN 1122CA1976A IN 144483 B IN144483 B IN 144483B
Authority
IN
India
Application number
IN1122/CAL/1976A
Other languages
English (en)
Inventor
K Redelius
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of IN144483B publication Critical patent/IN144483B/en

Links

Classifications

    • 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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
IN1122/CAL/1976A 1975-08-01 1976-06-23 IN144483B (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7508728A SE387812B (sv) 1975-08-01 1975-08-01 Automatiskt telefonsystem forsett med ett skydd mot avbrottsstorningar vid registersignalering

Publications (1)

Publication Number Publication Date
IN144483B true IN144483B (ja) 1978-05-06

Family

ID=20325236

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1122/CAL/1976A IN144483B (ja) 1975-08-01 1976-06-23

Country Status (3)

Country Link
BE (1) BE844762A (ja)
IN (1) IN144483B (ja)
SE (1) SE387812B (ja)

Also Published As

Publication number Publication date
SE387812B (sv) 1976-09-13
BE844762A (fr) 1976-11-16

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