FR947899A - Systèmes et équipements automatiques de télécommunication - Google Patents

Systèmes et équipements automatiques de télécommunication

Info

Publication number
FR947899A
FR947899A FR947899DA FR947899A FR 947899 A FR947899 A FR 947899A FR 947899D A FR947899D A FR 947899DA FR 947899 A FR947899 A FR 947899A
Authority
FR
France
Prior art keywords
equipment
telecommunication systems
automatic telecommunication
automatic
systems
Prior art date
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
Other languages
English (en)
Inventor
Esmond Philip Goodwin Wright
Leonard Powell Lowry
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
Priority claimed from US743964A external-priority patent/US2588685A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR947899A publication Critical patent/FR947899A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • 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
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Selective Calling Equipment (AREA)
  • Meter Arrangements (AREA)
FR947899D 1939-07-26 1947-06-13 Systèmes et équipements automatiques de télécommunication Expired FR947899A (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB2588685X 1939-07-26
GB267229X 1939-08-09
GB2613278X 1940-01-05
US743964A US2588685A (en) 1939-07-26 1947-04-25 Register-sender for automatic telephony
US130127A US2613274A (en) 1939-07-26 1949-11-30 Automatic recording of telephone numbers

Publications (1)

Publication Number Publication Date
FR947899A true FR947899A (fr) 1949-07-15

Family

ID=32303753

Family Applications (3)

Application Number Title Priority Date Filing Date
FR947899D Expired FR947899A (fr) 1939-07-26 1947-06-13 Systèmes et équipements automatiques de télécommunication
FR56826D Expired FR56826E (fr) 1939-07-26 1947-06-14 Systèmes et équipements automatiques de télécommunication
FR57210D Expired FR57210E (fr) 1939-07-26 1947-06-14 Systèmes et équipements automatiques de télécommunication

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR56826D Expired FR56826E (fr) 1939-07-26 1947-06-14 Systèmes et équipements automatiques de télécommunication
FR57210D Expired FR57210E (fr) 1939-07-26 1947-06-14 Systèmes et équipements automatiques de télécommunication

Country Status (5)

Country Link
US (2) US2613278A (fr)
BE (1) BE480490A (fr)
CH (1) CH267229A (fr)
FR (3) FR947899A (fr)
GB (6) GB532729A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE480490A (fr) * 1939-07-26
US2588685A (en) * 1939-07-26 1952-03-11 Automatic Elect Lab Register-sender for automatic telephony
US2588686A (en) * 1940-04-01 1952-03-11 Automatic Elect Lab Telephone system providing operator service when all trunks are busy
FR961461A (fr) * 1942-06-27 1950-05-12
BE468835A (fr) * 1945-11-08
BE520982A (fr) * 1951-08-16
US2871297A (en) * 1954-03-08 1959-01-27 Itt 100-line direct-access crossbar telephone switching unit
US2875286A (en) * 1955-04-21 1959-02-24 North Electric Co Telephone call surveying equipment
US2912542A (en) * 1956-12-03 1959-11-10 Gen Telephone Lab Inc Relay assembly

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1724174A (en) * 1929-08-13 To automatic electbic inc
GB346301A (en) * 1930-01-07 1931-04-07 Standard Telephones Cables Ltd Improvements in or relating to automatic or semi-automatic telephone exchange systems
FR738032A (fr) * 1931-06-02 1932-12-20
US2165924A (en) * 1933-10-31 1939-07-11 Bell Telephone Labor Inc Telephone system
US2180824A (en) * 1937-03-10 1939-11-21 Western Electric Co Automatic call ticketing system
US2273165A (en) * 1938-04-06 1942-02-17 Western Electric Co Tariff determining equipment for telephone systems
GB516408A (en) * 1938-06-14 1940-01-01 Justin Erwin Pollak Improvements in or relating to automatic or semi-automatic telephone systems
US2373908A (en) * 1938-06-14 1945-04-17 Automatic Elect Lab Telephone system
US2486722A (en) * 1938-06-21 1949-11-01 Automatic Elect Lab Automatic toll-ticketing telephone system
GB524003A (en) * 1939-01-19 1940-07-26 Ass Telephone & Telegraph Co Improvements in or relating to telephone systems
GB530614A (en) * 1939-05-11 1940-12-16 Ass Telephone & Telegraph Co Improvements in or relating to telephone systems
BE480490A (fr) * 1939-07-26
US2385228A (en) * 1940-08-26 1945-09-18 Automatic Elect Lab Telephone system

Also Published As

Publication number Publication date
GB532728A (en) 1941-01-30
GB532729A (en) 1941-01-30
FR57210E (fr) 1952-12-23
BE480490A (fr)
GB540128A (en) 1941-10-07
CH267229A (fr) 1950-03-15
US2613278A (en) 1952-10-07
GB545182A (en) 1942-05-14
GB532730A (en) 1941-01-30
US2613274A (en) 1952-10-07
GB573869A (en) 1945-12-11
FR56826E (fr) 1952-10-07

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