BE816115A - Procede et dispositif pour la transmission secrete de signaux vocaux - Google Patents

Procede et dispositif pour la transmission secrete de signaux vocaux

Info

Publication number
BE816115A
BE816115A BE145237A BE145237A BE816115A BE 816115 A BE816115 A BE 816115A BE 145237 A BE145237 A BE 145237A BE 145237 A BE145237 A BE 145237A BE 816115 A BE816115 A BE 816115A
Authority
BE
Belgium
Prior art keywords
voice signals
secret transmission
secret
transmission
voice
Prior art date
Application number
BE145237A
Other languages
English (en)
French (fr)
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 BE816115A publication Critical patent/BE816115A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
    • 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)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Communication Control (AREA)
  • Facsimile Transmission Control (AREA)
BE145237A 1973-06-12 1974-06-10 Procede et dispositif pour la transmission secrete de signaux vocaux BE816115A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH834773A CH559483A5 (it) 1973-06-12 1973-06-12

Publications (1)

Publication Number Publication Date
BE816115A true BE816115A (fr) 1974-09-30

Family

ID=4338931

Family Applications (1)

Application Number Title Priority Date Filing Date
BE145237A BE816115A (fr) 1973-06-12 1974-06-10 Procede et dispositif pour la transmission secrete de signaux vocaux

Country Status (18)

Country Link
US (1) US3978288A (it)
JP (1) JPS5023707A (it)
AR (1) AR205984A1 (it)
AT (1) AT336689B (it)
BE (1) BE816115A (it)
BR (1) BR7404821D0 (it)
CA (1) CA1028075A (it)
CH (1) CH559483A5 (it)
DE (1) DE2333975C2 (it)
ES (1) ES427136A1 (it)
FR (1) FR2233768B1 (it)
GB (1) GB1479717A (it)
IL (1) IL44994A (it)
IT (1) IT1014904B (it)
NL (1) NL7406968A (it)
NO (1) NO145363C (it)
SE (1) SE400006B (it)
ZA (1) ZA743658B (it)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2737576C1 (de) * 1977-08-22 1986-01-09 Siemens AG, 1000 Berlin und 8000 München Militaerisches Radar- oder Funk-Nachrichtenuebertragungssystem
DE2737577C1 (de) * 1977-08-22 1986-01-09 Siemens AG, 1000 Berlin und 8000 München Militaerisches Radar- oder Funk-Nachrichtenuebertragungssystem
NO802740L (no) * 1979-10-18 1981-04-21 Crypto Ag Fremgangsmaate og anordning til kodet overfoering av informasjon
JPS58198934A (ja) * 1982-05-17 1983-11-19 Sony Corp 秘話装置
US4642688A (en) * 1983-06-24 1987-02-10 Scientific Atlanta, Inc. Method and apparatus for creating encrypted and decrypted television signals
IN163475B (it) * 1984-12-12 1988-10-01 Siemens Ag
EP0191488B1 (en) * 1985-02-14 1993-06-09 Nec Corporation Unit for preventing an interception of a radio communication signal transmitted between a fixed facility and a mobile station
DE3605350C2 (de) * 1986-02-20 1996-02-08 Daimler Benz Aerospace Ag Verfahren zur Tarnung einer durch Funk übertragenen Nachricht
JP3145407B2 (ja) * 1994-07-15 2001-03-12 株式会社エヌ・ティ・ティ・ドコモ 信号伝送方式および通信システム
KR100497130B1 (ko) * 1997-04-02 2005-09-20 오트크리토에 악츠이오네른오에 옵스체스트보 (모스코브스키야 고로즈카야 텔레폰나야 셋) 이진코드정보의암호화방법
RU2103829C1 (ru) * 1997-04-02 1998-01-27 Государственное унитарное предприятие "Специализированный центр программных систем "Спектр" Способ шифрования информации, представленной двоичным кодом
US6408019B1 (en) 1997-12-29 2002-06-18 Georgia Tech Research Corporation System and method for communication using noise
KR100841411B1 (ko) * 2000-03-14 2008-06-25 소니 가부시끼 가이샤 전송장치, 수신장치, 전송방법, 수신방법과 기록매체
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
US8239197B2 (en) 2002-03-28 2012-08-07 Intellisist, Inc. Efficient conversion of voice messages into text
AU2003222132A1 (en) 2002-03-28 2003-10-13 Martin Dunsmuir Closed-loop command and response system for automatic communications between interacting computer systems over an audio communications channel
US7143028B2 (en) * 2002-07-24 2006-11-28 Applied Minds, Inc. Method and system for masking speech
US7930331B2 (en) * 2005-09-26 2011-04-19 Temarylogic Llc Encipherment of digital sequences by reversible transposition methods
US20050065778A1 (en) * 2003-09-24 2005-03-24 Mastrianni Steven J. Secure speech
FR3076414B1 (fr) * 2017-12-28 2020-11-06 Thales Sa Systeme de communications de donnees comportant un canal principal haut debit et un canal de secours bas debit a haute fiabilite

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2107756A (en) * 1937-05-15 1938-02-08 Bell Telephone Labor Inc Privacy system
US2405599A (en) * 1941-09-24 1946-08-13 Bell Telephone Labor Inc Privacy system
BE455172A (it) * 1943-04-05
US2932693A (en) * 1956-01-18 1960-04-12 Salvox Corp Secret communication system
CH361597A (de) * 1958-08-23 1962-04-30 Patelhold Patentverwertung Verfahren zur Verschleierung von Nachrichtensignalen
NL244086A (it) * 1958-12-10
DE1190995B (de) * 1960-12-12 1965-04-15 Ing Leopold Etzler Verfahren und Einrichtung zur Geheimhaltung elektrisch uebermittelter Signale
US3499992A (en) * 1962-04-05 1970-03-10 Us Army Hidden channel communications system
BE646982A (it) * 1963-04-23
FR95619E (fr) * 1966-05-05 1971-03-26 It Telecommunicazioni Siemens Systeme de transmission de signaux téléphoniques a allocation de temps.
CH461585A (de) * 1966-08-24 1968-08-31 Ciba Geigy Verfahren und Einrichtung zur Nachrichtenübermittlung
GB1189861A (en) * 1966-09-15 1970-04-29 Horace Graham Bent Security Communications Systems
CH518658A (de) * 1970-07-07 1972-01-31 Patelhold Patentverwaltungs Un Verfahren zur verschlüsselten Nachrichtenübermittlung durch zeitliche Vertauschung von Informationselementen

Also Published As

Publication number Publication date
JPS5023707A (it) 1975-03-14
SE7407538L (it) 1974-12-13
IT1014904B (it) 1977-04-30
IL44994A0 (en) 1975-07-28
AU6939374A (en) 1975-11-27
AR205984A1 (es) 1976-06-23
FR2233768A1 (it) 1975-01-10
BR7404821D0 (pt) 1975-01-21
CH559483A5 (it) 1975-02-28
ZA743658B (en) 1975-06-25
NO145363C (no) 1982-03-03
SE400006B (sv) 1978-03-06
NO145363B (no) 1981-11-23
NL7406968A (it) 1974-12-16
ES427136A1 (es) 1976-07-16
NO742071L (it) 1975-01-06
FR2233768B1 (it) 1978-01-13
DE2333975C2 (de) 1982-05-27
DE2333975A1 (de) 1975-01-09
AT336689B (de) 1977-05-25
IL44994A (en) 1978-03-10
US3978288A (en) 1976-08-31
ATA372874A (de) 1976-09-15
GB1479717A (en) 1977-07-13
CA1028075A (en) 1978-03-14

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