NL7109284A - - Google Patents

Info

Publication number
NL7109284A
NL7109284A NL7109284A NL7109284A NL7109284A NL 7109284 A NL7109284 A NL 7109284A NL 7109284 A NL7109284 A NL 7109284A NL 7109284 A NL7109284 A NL 7109284A NL 7109284 A NL7109284 A NL 7109284A
Authority
NL
Netherlands
Application number
NL7109284A
Other versions
NL167818C (nl
NL167818B (nl
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 filed Critical
Publication of NL7109284A publication Critical patent/NL7109284A/xx
Publication of NL167818B publication Critical patent/NL167818B/nl
Application granted granted Critical
Publication of NL167818C publication Critical patent/NL167818C/nl

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
    • H04L9/34—Bits, or blocks of bits, of the telegraphic message being interchanged in time
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
NL7109284A 1970-07-07 1971-07-06 Stelsel voor de geheime overdracht van berichten. NL167818C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1022770A CH518658A (de) 1970-07-07 1970-07-07 Verfahren zur verschlüsselten Nachrichtenübermittlung durch zeitliche Vertauschung von Informationselementen

Publications (3)

Publication Number Publication Date
NL7109284A true NL7109284A (nl) 1972-01-11
NL167818B NL167818B (nl) 1981-08-17
NL167818C NL167818C (nl) 1982-01-18

Family

ID=4360828

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7109284A NL167818C (nl) 1970-07-07 1971-07-06 Stelsel voor de geheime overdracht van berichten.

Country Status (12)

Country Link
US (1) US3773977A (nl)
JP (1) JPS583426B1 (nl)
AT (1) AT327293B (nl)
BE (1) BE769493A (nl)
CH (1) CH518658A (nl)
DE (1) DE2046630C3 (nl)
DK (1) DK133649B (nl)
ES (1) ES392921A1 (nl)
FR (1) FR2101561A5 (nl)
GB (1) GB1356970A (nl)
NL (1) NL167818C (nl)
SE (1) SE363946B (nl)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921151A (en) * 1971-06-21 1975-11-18 Patelhold Patentwerwertungs & Apparatus for enciphering transmitted data by interchanging signal elements of the transmitted data without overlapping or omitting any elements within the transmitted signal train
US4020285A (en) * 1972-09-29 1977-04-26 Datotek, Inc. Voice security method and system
US3991271A (en) * 1972-09-29 1976-11-09 Datotek, Inc. Voice security method and system
CH574692A5 (nl) * 1973-02-13 1976-04-15 Gretag Ag
CH558993A (de) * 1973-03-19 1975-02-14 Patelhold Patentverwertung Verfahren und einrichtung zur verschluesselten nachrichtenuebertragung.
CH559483A5 (nl) * 1973-06-12 1975-02-28 Patelhold Patentverwertung
CH580893A5 (nl) * 1973-07-02 1976-10-15 Gretag Ag
DE2339685C2 (de) * 1973-08-06 1982-06-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zum verschleierten Übertragen von Nachrichtensignalen
DE2359673C2 (de) * 1973-11-30 1982-05-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Verschleiern des Informationsinhaltes von Frequenzbändern
DE2426635A1 (de) * 1974-06-01 1975-12-11 Licentia Gmbh Verfahren zum verschleiern des informationsinhaltes von frequenzbaendern
CH578807A5 (nl) * 1974-11-05 1976-08-13 Patelhold Patentverwertung
DE2455477C3 (de) * 1974-11-23 1982-08-26 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur Sprachverschleierung durch zeitliches Vertauschen der Sprachabschnitte
CH581412A5 (nl) * 1975-02-26 1976-10-29 Patelhold Patentverwertung
US4004089A (en) * 1975-02-28 1977-01-18 Ncr Corporation Programmable cryptic device for enciphering and deciphering data
US4099027A (en) * 1976-01-02 1978-07-04 General Electric Company Speech scrambler
CH607506A5 (nl) * 1976-06-01 1978-12-29 Europ Handelsges Anst
US4087626A (en) * 1976-08-04 1978-05-02 Rca Corporation Scrambler and unscrambler for serial data
US4217469A (en) * 1977-03-15 1980-08-12 Emilio Martelli Coding and decoding apparatus for the protection of communication secrecy
US4100374A (en) * 1977-04-11 1978-07-11 Bell Telephone Laboratories, Incorporated Uniform permutation privacy system
GB1553027A (en) * 1977-05-12 1979-09-19 Marconi Co Ltd Message signal scrambling apparatus
DE2809719C3 (de) * 1978-03-07 1985-03-14 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur Erhöhung der Sicherheit gegen unbefugte Rückschlüsselung von verschlüsselter Sprache
US4232194A (en) * 1979-03-16 1980-11-04 Ocean Technology, Inc. Voice encryption system
US4278840A (en) * 1979-03-23 1981-07-14 Datotek, Inc. Dynamic frequency and time voice encryption system and method
FR2454664A1 (fr) * 1979-04-20 1980-11-14 Telediffusion Fse Systeme de cryptage et de decryptage d'un signal analogique par compressions et expansions temporelles
US4318125A (en) * 1979-04-25 1982-03-02 Westinghouse Electric Corp. Solid state digital audio scrambler system for teletransmission of audio intelligence through a television system
US4295223A (en) * 1979-04-25 1981-10-13 Westinghouse Electric Corp. Digital signal/noise ratio amplifier apparatus for a communication system
US4266243A (en) * 1979-04-25 1981-05-05 Westinghouse Electric Corp. Scrambling system for television sound signals
DE3138523A1 (de) * 1981-09-28 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Verfahren zur abhoersicheren frequenzbandkomprimierten uebertragung von sprachsignalen
US4965825A (en) 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
US7831204B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods
US4433211A (en) * 1981-11-04 1984-02-21 Technical Communications Corporation Privacy communication system employing time/frequency transformation
DE3207040A1 (de) * 1982-02-26 1983-09-08 Siemens AG, 1000 Berlin und 8000 München Vefahren und anordnung zum uebertragen von zeichen
US4591673A (en) * 1982-05-10 1986-05-27 Lee Lin Shan Frequency or time domain speech scrambling technique and system which does not require any frame synchronization
US4661980A (en) * 1982-06-25 1987-04-28 The United States Of America As Represented By The Secretary Of The Navy Intercept resistant data transmission system
IT1156086B (it) * 1982-10-25 1987-01-28 Cselt Centro Studi Lab Telecom Metodo e dispositivo di memorizzazione di segnali numerici organizzati in modo tridimensionale e soggetti a trasformazioni ortogonali
US4551580A (en) * 1982-11-22 1985-11-05 At&T Bell Laboratories Time-frequency scrambler
US4608456A (en) * 1983-05-27 1986-08-26 M/A-Com Linkabit, Inc. Digital audio scrambling system with error conditioning
US4642688A (en) * 1983-06-24 1987-02-10 Scientific Atlanta, Inc. Method and apparatus for creating encrypted and decrypted television signals
US4638357A (en) * 1984-01-20 1987-01-20 Home Box Office, Inc. Audio scrambler
US5253296A (en) * 1991-11-26 1993-10-12 Communication Electronics System for resisting interception of information
EP0552051A2 (en) * 1992-01-17 1993-07-21 Hitachi, Ltd. Radio paging system with voice transfer function and radio pager
ATE331360T1 (de) * 2000-09-20 2006-07-15 Yutaka Yasukura Verschlüsselungs- und entschlüsselungsverfahren von elektronischen informationen unter verwendung von zufälligen permutationen
DE10138650A1 (de) * 2001-08-07 2003-02-27 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Verschlüsseln eines diskreten Signals sowie Verfahren und Vorrichtung zur Entschlüsselung
US7930331B2 (en) * 2005-09-26 2011-04-19 Temarylogic Llc Encipherment of digital sequences by reversible transposition methods

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953918A (en) * 1932-03-28 1934-04-10 Associated Electric Lab Inc Cryptographic system and apparatus
US2453659A (en) * 1941-09-05 1948-11-09 Gutzwiller & Co E Secret telegraph signaling
US2547515A (en) * 1949-06-23 1951-04-03 Teletype Corp Secrecy system
US3657699A (en) * 1970-06-30 1972-04-18 Ibm Multipath encoder-decoder arrangement

Also Published As

Publication number Publication date
DK133649C (nl) 1976-11-08
GB1356970A (en) 1974-06-19
DE2046630B2 (de) 1974-08-08
US3773977A (en) 1973-11-20
FR2101561A5 (nl) 1972-03-31
CH518658A (de) 1972-01-31
AT327293B (de) 1976-01-26
DE2046630C3 (de) 1975-03-20
DK133649B (da) 1976-06-21
BE769493A (fr) 1971-11-16
NL167818C (nl) 1982-01-18
ES392921A1 (es) 1973-11-01
JPS583426B1 (nl) 1983-01-21
SE363946B (nl) 1974-02-04
DE2046630A1 (de) 1972-01-20
ATA335471A (de) 1975-04-15
NL167818B (nl) 1981-08-17

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee