NL126876C - - Google Patents

Info

Publication number
NL126876C
NL126876C NL126876DA NL126876C NL 126876 C NL126876 C NL 126876C NL 126876D A NL126876D A NL 126876DA NL 126876 C NL126876 C NL 126876C
Authority
NL
Netherlands
Prior art keywords
data
july
ciphered
pulses
groups
Prior art date
Application number
Other languages
English (en)
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.)
Publication of NL126876C publication Critical patent/NL126876C/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Facsimile Transmission Control (AREA)
  • Dc Digital Transmission (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
NL126876D 1964-07-31 NL126876C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1003664A CH411984A (de) 1964-07-31 1964-07-31 Verfahren zur Verschleierung von Nachrichtensignalen

Publications (1)

Publication Number Publication Date
NL126876C true NL126876C (xx)

Family

ID=4358632

Family Applications (2)

Application Number Title Priority Date Filing Date
NL126876D NL126876C (xx) 1964-07-31
NL6412505A NL6412505A (xx) 1964-07-31 1964-10-27

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL6412505A NL6412505A (xx) 1964-07-31 1964-10-27

Country Status (7)

Country Link
US (1) US3536833A (xx)
CH (1) CH411984A (xx)
DE (1) DE1231286C2 (xx)
FR (1) FR1499865A (xx)
GB (1) GB1056392A (xx)
NL (2) NL6412505A (xx)
SE (1) SE330188B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688193A (en) * 1969-08-13 1972-08-29 Motorola Inc Signal coding and decoding system
US4126761A (en) * 1977-02-11 1978-11-21 Daniel Graupe Method of and means for processing an audio frequency signal to conceal intelligility
USRE31735E (en) * 1977-10-19 1984-11-13 Feature Film Services Subscriber-limited reception television broadcast security encoder-decoder system
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
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
US4680797A (en) * 1984-06-26 1987-07-14 The United States Of America As Represented By The Secretary Of The Air Force Secure digital speech communication
RU2103829C1 (ru) * 1997-04-02 1998-01-27 Государственное унитарное предприятие "Специализированный центр программных систем "Спектр" Способ шифрования информации, представленной двоичным кодом

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071649A (en) * 1946-06-19 1963-01-01 Bell Telephone Labor Inc Cipher system for pulse code modulation communication system
CH311424A (de) * 1950-04-22 1955-11-30 Gretener Edgar Ing Dr Verfahren zur Geheimhaltung von Sprache in Nachrichtenübermittlungskanälen.
DE1076733B (de) * 1958-05-29 1960-03-03 Telefunken Gmbh Anordnung zur Sicherstellung des Synchronlaufs der Schluessel-zeichengeneratoren aufder Sende- und Empfangsseite bei der Geheimuebertragung von kodierten Nachrichtensignalen
NL244086A (xx) * 1958-12-10
US3243507A (en) * 1963-03-08 1966-03-29 Stanford Research Inst Bandwidth reduction facsimile system

Also Published As

Publication number Publication date
GB1056392A (en) 1967-01-25
NL6412505A (xx) 1966-02-01
US3536833A (en) 1970-10-27
DE1231286B (de) 1966-12-29
FR1499865A (fr) 1967-11-03
DE1231286C2 (de) 1973-12-06
SE330188B (xx) 1970-11-09
CH411984A (de) 1966-04-30

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