FR950341A - Système de communication secrète - Google Patents

Système de communication secrète

Info

Publication number
FR950341A
FR950341A FR950341DA FR950341A FR 950341 A FR950341 A FR 950341A FR 950341D A FR950341D A FR 950341DA FR 950341 A FR950341 A FR 950341A
Authority
FR
France
Prior art keywords
communication system
secret communication
secret
communication
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)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR950341A publication Critical patent/FR950341A/fr
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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
FR950341D 1943-03-11 1947-06-17 Système de communication secrète Expired FR950341A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US478760A US2566882A (en) 1943-03-11 1943-03-11 Communication system

Publications (1)

Publication Number Publication Date
FR950341A true FR950341A (fr) 1949-09-23

Family

ID=9778602

Family Applications (1)

Application Number Title Priority Date Filing Date
FR950341D Expired FR950341A (fr) 1943-03-11 1947-06-17 Système de communication secrète

Country Status (3)

Country Link
US (1) US2566882A (fr)
FR (1) FR950341A (fr)
GB (1) GB623993A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1226561A (fr) * 1959-02-20 1960-07-13 Csf Perfectionnements aux faisceaux hertziens

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1848839A (en) * 1932-03-08 Method and means fob bepbodttcing and tbansmitting pictttbes
US1634390A (en) * 1927-07-05 Inghouse electric
US1672215A (en) * 1923-08-15 1928-06-05 Western Electric Co Wave varying and transmitting
US2045107A (en) * 1932-12-02 1936-06-23 Rca Corp Phase modulation
US2089639A (en) * 1933-04-08 1937-08-10 Rca Corp Intelligence transmission
US2227108A (en) * 1936-02-20 1940-12-31 Telefunken Gmbh Signaling system
US2266194A (en) * 1938-01-30 1941-12-16 Radio Patents Corp Television system
US2227596A (en) * 1938-03-31 1941-01-07 Rca Corp Signaling system
GB523575A (en) * 1939-01-06 1940-07-17 Kolster Brandes Ltd Improvements in or relating to methods of generating pulses characteristic of sound and like waves
US2252293A (en) * 1939-06-14 1941-08-12 Bell Telephone Labor Inc Modulation system
BE474584A (fr) * 1940-06-04

Also Published As

Publication number Publication date
US2566882A (en) 1951-09-04
GB623993A (en) 1949-05-26

Similar Documents

Publication Publication Date Title
FR941112A (fr) Système de téléphonie multiplex
FR946257A (fr) Système de communication
FR991340A (fr) Système de commutation
DK77239C (da) Ovnanlæg.
CH270139A (de) Drucktelegraphenempfänger.
FR982425A (fr) Système de reliure
CH276282A (de) Fernmeldeamtsanlage.
FR950341A (fr) Système de communication secrète
CH252220A (de) Netzschutzeinrichtung.
FR968632A (fr) Système de transmission multiple
FR942753A (fr) Système téléphonique
FR983917A (fr) Système de transmission
FR902504A (fr) Récepteur de t. s. f.
AT167786B (de) Fernmeldesystem
FR986979A (fr) Système de radioguidage
FR899235A (fr) Système téléimprimeur
FR54616E (fr) Système télégraphique imprimeur
CH246848A (de) Fernmeldeanlage.
FR914692A (fr) Système de modulation
FR895998A (fr) Système de radio-compas
ES160920A1 (es) Sistema de telecomunicación
FR893609A (fr) Système de réchaud économique
CH247563A (de) Lautsprech-Telephonanlage.
FR994049A (fr) Système de télégraphie multiplex
FR906877A (fr) Système déformable bimétallique