BE564821A - Dispositif chiffrant et déchiffrant pour téléimprimeur - Google Patents

Dispositif chiffrant et déchiffrant pour téléimprimeur

Info

Publication number
BE564821A
BE564821A BE564821DA BE564821A BE 564821 A BE564821 A BE 564821A BE 564821D A BE564821D A BE 564821DA BE 564821 A BE564821 A BE 564821A
Authority
BE
Belgium
Prior art keywords
teleprinter
encryption
decryption device
decryption
Prior art date
Application number
Other languages
English (en)
Inventor
Jean Jacques Cuvelier
Original Assignee
Acec
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 Acec filed Critical Acec
Publication of BE564821A publication Critical patent/BE564821A/fr

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • G09C1/06—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member
    • G09C1/14—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member involving removable or interchangeable coding numbers, e.g. master tapes, punched cards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/24—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a non-rotatable moving part
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Storage Device Security (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Input From Keyboards Or The Like (AREA)
BE564821D 1958-02-14 1958-02-14 Dispositif chiffrant et déchiffrant pour téléimprimeur BE564821A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE564821T 1958-02-14

Publications (1)

Publication Number Publication Date
BE564821A true BE564821A (fr) 1958-08-14

Family

ID=3882419

Family Applications (1)

Application Number Title Priority Date Filing Date
BE564821D BE564821A (fr) 1958-02-14 1958-02-14 Dispositif chiffrant et déchiffrant pour téléimprimeur

Country Status (5)

Country Link
US (1) US2981794A (fr)
BE (1) BE564821A (fr)
DE (1) DE1095875B (fr)
FR (1) FR1223631A (fr)
GB (1) GB865938A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870683A (en) * 1986-03-31 1989-09-26 Atalla Corporation Personal identification encryptor system and method
GB2324006B (en) * 1997-04-02 2001-08-22 David Williams Electronic modulation scheme
US6792528B1 (en) * 2000-05-17 2004-09-14 Chien-Tzu Hou Method and apparatus for securing data contents of a non-volatile memory device
US7315505B2 (en) * 2003-07-14 2008-01-01 Hewlett-Packard Development Company, L.P. Storage device having a probe with plural tips
US7173314B2 (en) * 2003-08-13 2007-02-06 Hewlett-Packard Development Company, L.P. Storage device having a probe and a storage cell with moveable parts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517587A (en) * 1946-12-09 1950-08-08 Bell Telephone Labor Inc Secret message transmission system
US2706215A (en) * 1950-03-24 1955-04-12 Nederlanden Staat Mnemonic system for telegraph systems and like apparatus
DE855876C (de) * 1951-01-03 1952-11-17 Rudolf Dr-Ing Hell Anordnung zur geheimen telegraphischen Nachrichtenuebermittlung mittels Hellschreiber
DE885563C (de) * 1951-05-08 1953-08-06 Rudolf Dr-Ing Hell Verschluesselungsmaschine
NL180295B (nl) * 1952-08-19 Kubota Ltd Voertuig voor werkverrichtingen met aangekoppelde of aan te koppelen werktuigen met aandrijving op alle wielen.
FR1099022A (fr) * 1954-02-02 1955-08-29 Acec Téléimprimeurs sur liaisons radioélectriques
DE960900C (de) * 1954-11-27 1957-03-28 Siemens Ag Verfahren und Einrichtung zum Erzeugen und Aussenden verschluesselter Mehrfach-Alphabet-Fernschreiben und zum Entschluesseln solcher Fernschreiben
US2847503A (en) * 1954-12-29 1958-08-12 Commercial Cable Company Telegraph code converter

Also Published As

Publication number Publication date
FR1223631A (fr) 1960-06-17
US2981794A (en) 1961-04-25
DE1095875B (de) 1960-12-29
GB865938A (en) 1961-04-26

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