ZA706396B - A circuit for detecting dialing pulse signals on a telephone line for an automatic telephone system - Google Patents

A circuit for detecting dialing pulse signals on a telephone line for an automatic telephone system

Info

Publication number
ZA706396B
ZA706396B ZA706396A ZA706396A ZA706396B ZA 706396 B ZA706396 B ZA 706396B ZA 706396 A ZA706396 A ZA 706396A ZA 706396 A ZA706396 A ZA 706396A ZA 706396 B ZA706396 B ZA 706396B
Authority
ZA
South Africa
Prior art keywords
circuit
pulse signals
dialing pulse
telephone line
telephone system
Prior art date
Application number
ZA706396A
Other languages
English (en)
Inventor
N Madsen
Original Assignee
Gnt Automatic As
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 Gnt Automatic As filed Critical Gnt Automatic As
Publication of ZA706396B publication Critical patent/ZA706396B/xx

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
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
ZA706396A 1969-09-19 1970-09-18 A circuit for detecting dialing pulse signals on a telephone line for an automatic telephone system ZA706396B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK499869 1969-09-19

Publications (1)

Publication Number Publication Date
ZA706396B true ZA706396B (en) 1971-05-27

Family

ID=8138533

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA706396A ZA706396B (en) 1969-09-19 1970-09-18 A circuit for detecting dialing pulse signals on a telephone line for an automatic telephone system

Country Status (8)

Country Link
AU (1) AU2009270A (de)
BE (1) BE756354A (de)
CH (1) CH518663A (de)
DE (1) DE2046226A1 (de)
ES (1) ES383759A1 (de)
GB (1) GB1253508A (de)
NO (1) NO127597B (de)
ZA (1) ZA706396B (de)

Also Published As

Publication number Publication date
ES383759A1 (es) 1974-06-01
GB1253508A (en) 1971-11-17
NO127597B (de) 1973-07-16
BE756354A (fr) 1971-03-18
AU2009270A (en) 1972-03-23
CH518663A (de) 1972-01-31
DE2046226A1 (de) 1971-03-25

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