FR841748A - Perfectionnements aux installations de stations de répéteurs - Google Patents

Perfectionnements aux installations de stations de répéteurs

Info

Publication number
FR841748A
FR841748A FR841748DA FR841748A FR 841748 A FR841748 A FR 841748A FR 841748D A FR841748D A FR 841748DA FR 841748 A FR841748 A FR 841748A
Authority
FR
France
Prior art keywords
repeater station
station installations
installations
repeater
station
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)
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT SA
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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Application granted granted Critical
Publication of FR841748A publication Critical patent/FR841748A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
    • H03F1/542—Replacing by standby devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Alarm Systems (AREA)
FR841748D 1937-08-27 1938-08-05 Perfectionnements aux installations de stations de répéteurs Expired FR841748A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2353837A GB501361A (en) 1937-08-27 1937-08-27 Improvements in or relating to repeater stations for electric signal transmission systems

Publications (1)

Publication Number Publication Date
FR841748A true FR841748A (fr) 1939-05-25

Family

ID=10197245

Family Applications (1)

Application Number Title Priority Date Filing Date
FR841748D Expired FR841748A (fr) 1937-08-27 1938-08-05 Perfectionnements aux installations de stations de répéteurs

Country Status (2)

Country Link
FR (1) FR841748A (fr)
GB (1) GB501361A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552787A (en) * 1946-11-23 1951-05-15 Automatic Elect Lab Channel switching in voice current repeater stations

Also Published As

Publication number Publication date
GB501361A (en) 1939-02-27

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