FR912523A - Electric wave transmission systems - Google Patents

Electric wave transmission systems

Info

Publication number
FR912523A
FR912523A FR912523DA FR912523A FR 912523 A FR912523 A FR 912523A FR 912523D A FR912523D A FR 912523DA FR 912523 A FR912523 A FR 912523A
Authority
FR
France
Prior art keywords
wave transmission
electric wave
transmission systems
systems
electric
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
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR912523A publication Critical patent/FR912523A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
FR912523D 1940-07-03 1944-09-19 Electric wave transmission systems Expired FR912523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US343711A US2315434A (en) 1940-07-03 1940-07-03 Transmission system

Publications (1)

Publication Number Publication Date
FR912523A true FR912523A (en) 1946-08-12

Family

ID=23347302

Family Applications (1)

Application Number Title Priority Date Filing Date
FR912523D Expired FR912523A (en) 1940-07-03 1944-09-19 Electric wave transmission systems

Country Status (2)

Country Link
US (1) US2315434A (en)
FR (1) FR912523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939089C (en) * 1950-10-29 1956-02-16 Siemens Ag Device for measuring the attenuation curve of communication systems equipped with amplifiers

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE464402A (en) * 1945-02-06
BE476340A (en) * 1946-03-27 1900-01-01
US2554828A (en) * 1947-07-07 1951-05-29 Bell Telephone Labor Inc Testing repeaters in transmission systems by shunting out individual repeaters
US2564010A (en) * 1947-07-07 1951-08-14 Bell Telephone Labor Inc Unattended repeater testing by causing the repeaters to oscillate
US2550819A (en) * 1947-09-17 1951-05-01 Automatic Elect Lab Cordless key control testboard for telephone systems
US2580097A (en) * 1949-12-17 1951-12-25 Bell Telephone Labor Inc System for testing cable repeater
US2751578A (en) * 1953-02-04 1956-06-19 Ericsson Telefon Ab L M Fault indicator for plural connected devices
DE1074089B (en) * 1956-06-15 1960-01-28 Compagnie Generale d'Electricite Paris Arrangement for monitoring transmission systems of great length with remote-fed repeater stations
NL72361C (en) * 1959-02-05 1900-01-01
US3172965A (en) * 1959-04-10 1965-03-09 Communication transmission system em- ploying intermediate repeaters
US3130277A (en) * 1960-12-29 1964-04-21 Bell Telephone Labor Inc Order wire and alarm circuits
US3319160A (en) * 1963-12-05 1967-05-09 American Mach & Foundry Fail indication circuit for magnetic inspection system
US3651284A (en) * 1970-11-10 1972-03-21 Bell Telephone Labor Inc Extending the capability of a fault locate line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939089C (en) * 1950-10-29 1956-02-16 Siemens Ag Device for measuring the attenuation curve of communication systems equipped with amplifiers

Also Published As

Publication number Publication date
US2315434A (en) 1943-03-30

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