BR8006692A - Processo e instalacao para a transmissao cifrada de informacao - Google Patents

Processo e instalacao para a transmissao cifrada de informacao

Info

Publication number
BR8006692A
BR8006692A BR8006692A BR8006692A BR8006692A BR 8006692 A BR8006692 A BR 8006692A BR 8006692 A BR8006692 A BR 8006692A BR 8006692 A BR8006692 A BR 8006692A BR 8006692 A BR8006692 A BR 8006692A
Authority
BR
Brazil
Prior art keywords
installation
information
encrypted transmission
encrypted
transmission
Prior art date
Application number
BR8006692A
Other languages
English (en)
Inventor
M Caflisch
R Weber
Original Assignee
Crypto 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 Crypto Ag filed Critical Crypto Ag
Publication of BR8006692A publication Critical patent/BR8006692A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
    • 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)
  • Communication Control (AREA)
  • Computer And Data Communications (AREA)
  • Storage Device Security (AREA)
BR8006692A 1979-10-18 1980-10-17 Processo e instalacao para a transmissao cifrada de informacao BR8006692A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH935079 1979-10-18

Publications (1)

Publication Number Publication Date
BR8006692A true BR8006692A (pt) 1981-04-22

Family

ID=4351044

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8006692A BR8006692A (pt) 1979-10-18 1980-10-17 Processo e instalacao para a transmissao cifrada de informacao

Country Status (6)

Country Link
EP (1) EP0027572A1 (pt)
JP (1) JPS5666948A (pt)
BR (1) BR8006692A (pt)
ES (1) ES8200980A1 (pt)
NO (1) NO802740L (pt)
ZA (1) ZA806394B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642688A (en) * 1983-06-24 1987-02-10 Scientific Atlanta, Inc. Method and apparatus for creating encrypted and decrypted television signals
US5008935A (en) * 1989-06-30 1991-04-16 At&T Bell Laboratories Efficient method for encrypting superblocks of data
DE4021061C2 (de) * 1990-07-04 1998-11-05 Holzer Walter Prof Dr H C Ing Verfahren zur Codierung von faksimilen Fernkopien
DE4021783A1 (de) * 1990-07-11 1992-01-16 Holzer Walter Kopier- und chiffriergeraet
ATE176977T1 (de) * 1992-11-15 1999-03-15 Fontech Ltd Verfahren zum übertragen und/oder speichern von informationen
US5801848A (en) * 1993-01-06 1998-09-01 Fontech Ltd. Process for transmitting and/or storing information
EP0619677A3 (en) * 1993-04-09 1995-03-08 Matsushita Electric Ind Co Ltd Digital video signal encryption system.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1271557A (fr) * 1960-07-22 1961-09-15 Philips Nv Perfectionnements aux procédés et aux dispositifs de chiffrage et déchiffrage de messages
CH559483A5 (pt) * 1973-06-12 1975-02-28 Patelhold Patentverwertung

Also Published As

Publication number Publication date
EP0027572A1 (de) 1981-04-29
ES495648A0 (es) 1981-11-16
JPS5666948A (en) 1981-06-05
NO802740L (no) 1981-04-21
ZA806394B (en) 1981-10-28
ES8200980A1 (es) 1981-11-16

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