DK457381A - Anlaeg til kodet informationsoverfoering - Google Patents

Anlaeg til kodet informationsoverfoering

Info

Publication number
DK457381A
DK457381A DK457381A DK457381A DK457381A DK 457381 A DK457381 A DK 457381A DK 457381 A DK457381 A DK 457381A DK 457381 A DK457381 A DK 457381A DK 457381 A DK457381 A DK 457381A
Authority
DK
Denmark
Prior art keywords
installation
information transfer
coded information
coded
transfer
Prior art date
Application number
DK457381A
Other languages
Danish (da)
English (en)
Inventor
M Hanni
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of DK457381A publication Critical patent/DK457381A/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
DK457381A 1980-10-16 1981-10-15 Anlaeg til kodet informationsoverfoering DK457381A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803039105 DE3039105A1 (de) 1980-10-16 1980-10-16 Einrichtung zur verschluesselten informationsuebertragung

Publications (1)

Publication Number Publication Date
DK457381A true DK457381A (da) 1982-04-17

Family

ID=6114525

Family Applications (1)

Application Number Title Priority Date Filing Date
DK457381A DK457381A (da) 1980-10-16 1981-10-15 Anlaeg til kodet informationsoverfoering

Country Status (6)

Country Link
EP (1) EP0050268A1 (de)
DE (1) DE3039105A1 (de)
DK (1) DK457381A (de)
GR (1) GR75090B (de)
NO (1) NO813476L (de)
PT (1) PT73815B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549308A (en) * 1982-07-12 1985-10-22 At&T Bell Laboratories Secure mobile radio telephony
DE3410936C2 (de) * 1984-03-24 1997-09-18 Philips Patentverwaltung Verfahren zum Erkennen der unerlaubten Benutzung einer, einer beweglichen Funkstation zugeordneten Identifizierung in einem Funkübertragungssystem
DE4403998A1 (de) * 1994-02-09 1995-08-10 Rohde & Schwarz Fernsteuersystem für Minen
DE4416598A1 (de) * 1994-05-11 1995-11-16 Deutsche Bundespost Telekom Verfahren und Vorrichtung zur Sicherung von Telekommunikations-Verbindungen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1948096C1 (de) * 1969-09-23 1977-11-10 Siemens Ag Mit Binaerzeichen arbeitendes UEbertragungssystem,insbesondere PCM-System oder System mit Pulsdeltamodulation
CH540613A (de) * 1970-12-08 1973-08-15 Gretag Ag Verfahren und Vorrichtung zur chiffrierten Nachrichtenübermittlung
DE2824137C2 (de) * 1978-06-02 1980-06-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zur Phasensynchronisation

Also Published As

Publication number Publication date
GR75090B (de) 1984-07-13
PT73815A (de) 1981-11-01
EP0050268A1 (de) 1982-04-28
PT73815B (de) 1983-04-14
NO813476L (no) 1982-04-19
DE3039105A1 (de) 1982-04-29

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