FR1444250A - Dispositif de synchronisation d'une liaison - Google Patents

Dispositif de synchronisation d'une liaison

Info

Publication number
FR1444250A
FR1444250A FR17935A FR17935A FR1444250A FR 1444250 A FR1444250 A FR 1444250A FR 17935 A FR17935 A FR 17935A FR 17935 A FR17935 A FR 17935A FR 1444250 A FR1444250 A FR 1444250A
Authority
FR
France
Prior art keywords
synchronization device
link synchronization
link
synchronization
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
FR17935A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Priority to FR17935A priority Critical patent/FR1444250A/fr
Priority to GB2123366A priority patent/GB1144831A/en
Priority to DE19661487255 priority patent/DE1487255A1/de
Priority to CH722566A priority patent/CH452000A/fr
Application granted granted Critical
Publication of FR1444250A publication Critical patent/FR1444250A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling
    • H04N1/4486—Rendering the image unintelligible, e.g. scrambling using digital data encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
FR17935A 1965-05-21 1965-05-21 Dispositif de synchronisation d'une liaison Expired FR1444250A (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR17935A FR1444250A (fr) 1965-05-21 1965-05-21 Dispositif de synchronisation d'une liaison
GB2123366A GB1144831A (en) 1965-05-21 1966-05-12 Arrangement for synchronizing a communication link
DE19661487255 DE1487255A1 (de) 1965-05-21 1966-05-12 Anordnung zur Synchronisierung einer Nachrichtenverbindung
CH722566A CH452000A (fr) 1965-05-21 1966-05-18 Dispositif de liaison chiffrée pour transmettre des messages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR17935A FR1444250A (fr) 1965-05-21 1965-05-21 Dispositif de synchronisation d'une liaison

Publications (1)

Publication Number Publication Date
FR1444250A true FR1444250A (fr) 1966-07-01

Family

ID=8579439

Family Applications (1)

Application Number Title Priority Date Filing Date
FR17935A Expired FR1444250A (fr) 1965-05-21 1965-05-21 Dispositif de synchronisation d'une liaison

Country Status (4)

Country Link
CH (1) CH452000A (fr)
DE (1) DE1487255A1 (fr)
FR (1) FR1444250A (fr)
GB (1) GB1144831A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368837A1 (fr) * 1971-03-05 1978-05-19 Siemens Ag Procede pour transmettre des informations

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509559B1 (fr) * 1981-07-10 1986-03-21 Thomson Csf Procede de transmission numerique d'images video du type television et emetteur-recepteur correspondant
GB2217949B (en) * 1988-03-29 1992-08-05 Aisin Seiki Data encryption
GB2262418A (en) * 1991-10-17 1993-06-16 Jennifer Mallows Data transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368837A1 (fr) * 1971-03-05 1978-05-19 Siemens Ag Procede pour transmettre des informations

Also Published As

Publication number Publication date
DE1487255A1 (de) 1969-02-27
GB1144831A (en) 1969-03-12
CH452000A (fr) 1968-05-15

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