BE817196R - Circuit de numerotation pour appareil d'abonne telephonique - Google Patents

Circuit de numerotation pour appareil d'abonne telephonique

Info

Publication number
BE817196R
BE817196R BE2053727A BE2053727A BE817196R BE 817196 R BE817196 R BE 817196R BE 2053727 A BE2053727 A BE 2053727A BE 2053727 A BE2053727 A BE 2053727A BE 817196 R BE817196 R BE 817196R
Authority
BE
Belgium
Prior art keywords
subscriber device
telephone subscriber
numbering circuit
numbering
circuit
Prior art date
Application number
BE2053727A
Other languages
English (en)
Inventor
R T Wrigley
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 filed Critical
Application granted granted Critical
Publication of BE817196R publication Critical patent/BE817196R/fr

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
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Meter Arrangements (AREA)
BE2053727A 1973-07-03 1974-07-03 Circuit de numerotation pour appareil d'abonne telephonique BE817196R (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3161273A GB1404078A (en) 1973-07-03 1973-07-03 Telephone outpulser circuits

Publications (1)

Publication Number Publication Date
BE817196R true BE817196R (fr) 1975-01-03

Family

ID=10325756

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2053727A BE817196R (fr) 1973-07-03 1974-07-03 Circuit de numerotation pour appareil d'abonne telephonique

Country Status (10)

Country Link
AR (1) AR203751A1 (fr)
BE (1) BE817196R (fr)
BR (1) BR7405356A (fr)
DE (1) DE2430740A1 (fr)
ES (1) ES427877A1 (fr)
FR (1) FR2236322B2 (fr)
GB (1) GB1404078A (fr)
HK (1) HK28877A (fr)
IT (1) IT1015222B (fr)
ZA (1) ZA742857B (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488450A (en) * 1966-12-02 1970-01-06 American Telephone & Telegraph Sender for transmitting trains of pulses

Also Published As

Publication number Publication date
HK28877A (en) 1977-06-17
FR2236322A2 (fr) 1975-01-31
IT1015222B (it) 1977-05-10
BR7405356A (pt) 1976-08-31
FR2236322B2 (fr) 1978-11-24
GB1404078A (en) 1975-08-28
ZA742857B (en) 1975-03-26
DE2430740A1 (de) 1975-01-23
AR203751A1 (es) 1975-10-15
ES427877A1 (es) 1976-11-16
AU6914474A (en) 1975-11-20

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: INTERNATIONAL STANDARD ELECTRIC CORP.

Effective date: 19870531