GB541742A - Improvements in two-way transmission systems - Google Patents

Improvements in two-way transmission systems

Info

Publication number
GB541742A
GB541742A GB12370/40A GB1237040A GB541742A GB 541742 A GB541742 A GB 541742A GB 12370/40 A GB12370/40 A GB 12370/40A GB 1237040 A GB1237040 A GB 1237040A GB 541742 A GB541742 A GB 541742A
Authority
GB
United Kingdom
Prior art keywords
path
transmitting
speech
winding
relay
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
GB12370/40A
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.)
Associated Electric Laboratories Inc
Original Assignee
Associated 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 Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Publication of GB541742A publication Critical patent/GB541742A/en
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)
GB12370/40A 1939-08-14 1940-07-31 Improvements in two-way transmission systems Expired GB541742A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB541742A true GB541742A (en) 1941-12-09

Family

ID=21989229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12370/40A Expired GB541742A (en) 1939-08-14 1940-07-31 Improvements in two-way transmission systems

Country Status (3)

Country Link
BE (1) BE464850A (en:Method)
FR (1) FR930242A (en:Method)
GB (1) GB541742A (en:Method)

Also Published As

Publication number Publication date
BE464850A (en:Method)
FR930242A (fr) 1948-01-20

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