FR841774A - Improvements to echo dampers - Google Patents

Improvements to echo dampers

Info

Publication number
FR841774A
FR841774A FR841774DA FR841774A FR 841774 A FR841774 A FR 841774A FR 841774D A FR841774D A FR 841774DA FR 841774 A FR841774 A FR 841774A
Authority
FR
France
Prior art keywords
dampers
echo
echo dampers
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.)
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 FR841774A publication Critical patent/FR841774A/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)
FR841774D 1937-08-07 1938-08-05 Improvements to echo dampers Expired FR841774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE841774X 1937-08-07

Publications (1)

Publication Number Publication Date
FR841774A true FR841774A (en) 1939-05-26

Family

ID=6767796

Family Applications (1)

Application Number Title Priority Date Filing Date
FR841774D Expired FR841774A (en) 1937-08-07 1938-08-05 Improvements to echo dampers

Country Status (1)

Country Link
FR (1) FR841774A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759529C (en) * 1940-04-26 1954-05-03 Hell Rudolf Dr Ing Feedback lock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759529C (en) * 1940-04-26 1954-05-03 Hell Rudolf Dr Ing Feedback lock

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