FR930242A - Système de transmission à deux directions - Google Patents

Système de transmission à deux directions

Info

Publication number
FR930242A
FR930242A FR930242DA FR930242A FR 930242 A FR930242 A FR 930242A FR 930242D A FR930242D A FR 930242DA FR 930242 A FR930242 A FR 930242A
Authority
FR
France
Prior art keywords
transmission system
way transmission
way
transmission
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)
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
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 Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Application granted granted Critical
Publication of FR930242A publication Critical patent/FR930242A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
FR930242D 1939-08-14 1946-07-04 Système de transmission à deux directions Expired FR930242A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US541742XA 1939-08-14 1939-08-14

Publications (1)

Publication Number Publication Date
FR930242A true FR930242A (fr) 1948-01-20

Family

ID=21989229

Family Applications (1)

Application Number Title Priority Date Filing Date
FR930242D Expired FR930242A (fr) 1939-08-14 1946-07-04 Système de transmission à deux directions

Country Status (3)

Country Link
BE (1) BE464850A (xx)
FR (1) FR930242A (xx)
GB (1) GB541742A (xx)

Also Published As

Publication number Publication date
BE464850A (xx)
GB541742A (en) 1941-12-09

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