FR2358789A1 - Procede de synchronisation de codeurs pour installations de transmission de donnees - Google Patents

Procede de synchronisation de codeurs pour installations de transmission de donnees

Info

Publication number
FR2358789A1
FR2358789A1 FR7721768A FR7721768A FR2358789A1 FR 2358789 A1 FR2358789 A1 FR 2358789A1 FR 7721768 A FR7721768 A FR 7721768A FR 7721768 A FR7721768 A FR 7721768A FR 2358789 A1 FR2358789 A1 FR 2358789A1
Authority
FR
France
Prior art keywords
identifier word
data transmission
synchronization process
receiver
transmitter
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.)
Granted
Application number
FR7721768A
Other languages
English (en)
French (fr)
Other versions
FR2358789B1 (OSRAM
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2358789A1 publication Critical patent/FR2358789A1/fr
Application granted granted Critical
Publication of FR2358789B1 publication Critical patent/FR2358789B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Lock And Its Accessories (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
FR7721768A 1976-07-15 1977-07-13 Procede de synchronisation de codeurs pour installations de transmission de donnees Granted FR2358789A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2631823A DE2631823C3 (de) 1976-07-15 1976-07-15 Verfahren zum Synchronisieren von Schlüsseleinrichtungen für Datenübertragungsanlagen

Publications (2)

Publication Number Publication Date
FR2358789A1 true FR2358789A1 (fr) 1978-02-10
FR2358789B1 FR2358789B1 (OSRAM) 1985-04-05

Family

ID=5983088

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721768A Granted FR2358789A1 (fr) 1976-07-15 1977-07-13 Procede de synchronisation de codeurs pour installations de transmission de donnees

Country Status (7)

Country Link
AT (1) AT355635B (OSRAM)
CH (1) CH617553A5 (OSRAM)
DE (1) DE2631823C3 (OSRAM)
FR (1) FR2358789A1 (OSRAM)
GB (1) GB1532363A (OSRAM)
NL (1) NL7707323A (OSRAM)
NO (1) NO148133C (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2920589C2 (de) * 1979-05-21 1981-06-11 Siemens AG, 1000 Berlin und 8000 München Verfahren und Schaltungsanordnung zur Überprüfung des Synchronlaufs zweier Schlüsselgeräte
DE2939159C3 (de) * 1979-09-27 1982-03-25 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Synchronisierung von Schlüsselgeräten, die im Rahmen eines Paketnetzes betrieben werden
JPH0620228B2 (ja) * 1984-03-13 1994-03-16 キヤノン株式会社 フアクシミリ装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153055B (de) * 1960-12-29 1963-08-22 Int Standard Electric Corp Verfahren zur Synchronisierung der Schluesselstreifen bei UEbertragungsanlagen fuer Geheimtelegrafie
DE1216921B (de) * 1963-12-24 1966-05-18 Gretag Ag Verfahren zur Synchronisierung der Ver- und Entschluesselung von impulsfoermigen, binaer codierten Nachrichten, bei welchem sendeseitig die Nachrichtenklarimpulse mit Schluessel-impulsen gemischt werden
FR2144439A5 (OSRAM) * 1971-06-30 1973-02-09 Ibm

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083307B (de) * 1958-01-23 1960-06-15 Int Standard Electric Corp Verfahren zur selbsttaetigen Pruefung und Wiederherstellung des Gleichlaufs der Schluesselstreifen in Sender und Empfaenger einer Fernschreibanlage zur UEbertragung verschluesselter Nachrichten
CH402937A (de) * 1961-08-18 1965-11-30 Gretag Ag Verfahren zur Verschlüsselung von impulsförmig übertragenen Nachrichten
FR1582790A (OSRAM) * 1968-01-16 1969-10-10
DE2017282C3 (de) * 1970-04-10 1974-05-02 Siemens Ag Nachrichtenübertragungssystem mit Gegenverkehr und Pulsbetrieb
US3764742A (en) * 1971-12-23 1973-10-09 Ibm Cryptographic identification system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153055B (de) * 1960-12-29 1963-08-22 Int Standard Electric Corp Verfahren zur Synchronisierung der Schluesselstreifen bei UEbertragungsanlagen fuer Geheimtelegrafie
DE1216921B (de) * 1963-12-24 1966-05-18 Gretag Ag Verfahren zur Synchronisierung der Ver- und Entschluesselung von impulsfoermigen, binaer codierten Nachrichten, bei welchem sendeseitig die Nachrichtenklarimpulse mit Schluessel-impulsen gemischt werden
FR2144439A5 (OSRAM) * 1971-06-30 1973-02-09 Ibm

Also Published As

Publication number Publication date
FR2358789B1 (OSRAM) 1985-04-05
CH617553A5 (en) 1980-05-30
DE2631823B2 (de) 1978-05-03
ATA500277A (de) 1979-08-15
NO148133C (no) 1983-08-17
NO772469L (no) 1978-01-17
AT355635B (de) 1980-03-10
DE2631823A1 (de) 1978-01-19
GB1532363A (en) 1978-11-15
NO148133B (no) 1983-05-02
NL7707323A (nl) 1978-01-17
DE2631823C3 (de) 1984-03-01

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
ST Notification of lapse