GB541981A - Improvements in two-way transmission systems - Google Patents

Improvements in two-way transmission systems

Info

Publication number
GB541981A
GB541981A GB12372/40A GB1237240A GB541981A GB 541981 A GB541981 A GB 541981A GB 12372/40 A GB12372/40 A GB 12372/40A GB 1237240 A GB1237240 A GB 1237240A GB 541981 A GB541981 A GB 541981A
Authority
GB
United Kingdom
Prior art keywords
path
tubes
divider
potential
currents
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
GB12372/40A
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 GB541981A publication Critical patent/GB541981A/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)
  • Amplifiers (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
GB12372/40A 1939-08-14 1940-07-31 Improvements in two-way transmission systems Expired GB541981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US290088A US2282404A (en) 1939-08-14 1939-08-14 Transmission system

Publications (1)

Publication Number Publication Date
GB541981A true GB541981A (en) 1941-12-19

Family

ID=23114484

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12372/40A Expired GB541981A (en) 1939-08-14 1940-07-31 Improvements in two-way transmission systems

Country Status (4)

Country Link
US (1) US2282404A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE464852A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR930807A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB541981A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831922A (en) * 1953-05-06 1958-04-22 Gai Tronics Corp Telephone substation
US2850569A (en) * 1953-09-07 1958-09-02 Defensor A G Electric arrangement for speech transmission in two directions
US3060265A (en) * 1960-01-26 1962-10-23 Itt Conference call circuit

Also Published As

Publication number Publication date
BE464852A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR930807A (fr) 1948-02-05
US2282404A (en) 1942-05-12

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