FR816345A - Improvements to directed transmitters for secret communications - Google Patents

Improvements to directed transmitters for secret communications

Info

Publication number
FR816345A
FR816345A FR816345DA FR816345A FR 816345 A FR816345 A FR 816345A FR 816345D A FR816345D A FR 816345DA FR 816345 A FR816345 A FR 816345A
Authority
FR
France
Prior art keywords
secret communications
transmitters
directed
directed transmitters
secret
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR816345A publication Critical patent/FR816345A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR816345D 1936-01-16 1937-01-15 Improvements to directed transmitters for secret communications Expired FR816345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE816345X 1936-01-16

Publications (1)

Publication Number Publication Date
FR816345A true FR816345A (en) 1937-08-05

Family

ID=6734970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR816345D Expired FR816345A (en) 1936-01-16 1937-01-15 Improvements to directed transmitters for secret communications

Country Status (1)

Country Link
FR (1) FR816345A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424079A (en) * 1943-04-19 1947-07-15 Gen Electric System of communication
US2476337A (en) * 1943-01-22 1949-07-19 Sperry Corp Secret radio communication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476337A (en) * 1943-01-22 1949-07-19 Sperry Corp Secret radio communication
US2424079A (en) * 1943-04-19 1947-07-15 Gen Electric System of communication

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