FR2153982A5 - - Google Patents

Info

Publication number
FR2153982A5
FR2153982A5 FR7232373A FR7232373A FR2153982A5 FR 2153982 A5 FR2153982 A5 FR 2153982A5 FR 7232373 A FR7232373 A FR 7232373A FR 7232373 A FR7232373 A FR 7232373A FR 2153982 A5 FR2153982 A5 FR 2153982A5
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7232373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR2153982A5 publication Critical patent/FR2153982A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • 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)
  • Interface Circuits In Exchanges (AREA)
  • Relay Circuits (AREA)
FR7232373A 1971-09-13 1972-09-13 Expired FR2153982A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4255071 1971-09-13

Publications (1)

Publication Number Publication Date
FR2153982A5 true FR2153982A5 (fr) 1973-05-04

Family

ID=10424913

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7232373A Expired FR2153982A5 (fr) 1971-09-13 1972-09-13

Country Status (10)

Country Link
AR (1) AR193433A1 (fr)
AT (1) AT336691B (fr)
AU (1) AU4603872A (fr)
BE (1) BE788732A (fr)
CH (1) CH556623A (fr)
DE (1) DE2243994A1 (fr)
FR (1) FR2153982A5 (fr)
GB (1) GB1318858A (fr)
IT (1) IT967355B (fr)
ZA (1) ZA724726B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195130A1 (fr) * 1972-08-03 1974-03-01 Int Standard Electric Corp
FR2199236A1 (fr) * 1972-09-11 1974-04-05 Int Standard Electric Corp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3340396C2 (de) * 1983-11-09 1987-05-07 Hagenuk GmbH, 2300 Kiel Schaltungsanordnung für einen Rufsignalgenerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195130A1 (fr) * 1972-08-03 1974-03-01 Int Standard Electric Corp
FR2199236A1 (fr) * 1972-09-11 1974-04-05 Int Standard Electric Corp

Also Published As

Publication number Publication date
IT967355B (it) 1974-02-28
GB1318858A (en) 1973-05-31
DE2243994A1 (de) 1973-03-22
BE788732A (fr) 1973-03-13
AU4603872A (en) 1974-03-07
AT336691B (de) 1977-05-25
AR193433A1 (es) 1973-04-23
CH556623A (de) 1974-11-29
ATA776172A (de) 1976-09-15
ZA724726B (en) 1973-03-28

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Legal Events

Date Code Title Description
ST Notification of lapse