ZA757335B - Improvements in or relating to scrambling speech - Google Patents

Improvements in or relating to scrambling speech

Info

Publication number
ZA757335B
ZA757335B ZA757335A ZA757335A ZA757335B ZA 757335 B ZA757335 B ZA 757335B ZA 757335 A ZA757335 A ZA 757335A ZA 757335 A ZA757335 A ZA 757335A ZA 757335 B ZA757335 B ZA 757335B
Authority
ZA
South Africa
Prior art keywords
relating
scrambling
speech
scrambling speech
Prior art date
Application number
ZA757335A
Other languages
English (en)
Inventor
J Robra
K Kirschner
Original Assignee
Tekade Felten & Guilleaume
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 Tekade Felten & Guilleaume filed Critical Tekade Felten & Guilleaume
Publication of ZA757335B publication Critical patent/ZA757335B/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
ZA757335A 1974-11-23 1975-11-24 Improvements in or relating to scrambling speech ZA757335B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2455477A DE2455477C3 (de) 1974-11-23 1974-11-23 Verfahren zur Sprachverschleierung durch zeitliches Vertauschen der Sprachabschnitte

Publications (1)

Publication Number Publication Date
ZA757335B true ZA757335B (en) 1977-06-29

Family

ID=5931540

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA757335A ZA757335B (en) 1974-11-23 1975-11-24 Improvements in or relating to scrambling speech

Country Status (10)

Country Link
AT (1) AT343722B (US07608600-20091027-C00054.png)
BE (1) BE835826A (US07608600-20091027-C00054.png)
CH (1) CH604433A5 (US07608600-20091027-C00054.png)
DE (1) DE2455477C3 (US07608600-20091027-C00054.png)
DK (1) DK146748C (US07608600-20091027-C00054.png)
FR (1) FR2292386A1 (US07608600-20091027-C00054.png)
GB (1) GB1515937A (US07608600-20091027-C00054.png)
NL (1) NL164165C (US07608600-20091027-C00054.png)
SE (1) SE403023B (US07608600-20091027-C00054.png)
ZA (1) ZA757335B (US07608600-20091027-C00054.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704822C3 (de) * 1977-02-05 1980-10-23 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg Verfahren zur Sprachverschlüsselung nach dem Zeitverwürfelungsverfahren
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
CA1226914A (en) * 1984-01-26 1987-09-15 The University Of British Columbia Modem for pseudo noise communication on a.c. lines

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (US07608600-20091027-C00054.png) * 1958-12-10
CH402937A (de) * 1961-08-18 1965-11-30 Gretag Ag Verfahren zur Verschlüsselung von impulsförmig übertragenen Nachrichten
CH411030A (de) * 1964-08-06 1966-04-15 Patelhold Patentverwertung Einrichtung zur Verschlüsselung einer impulsförmigen Nachricht
CH435363A (de) * 1965-11-26 1967-05-15 Patelhold Patentverwertung Einrichtung zur Synchronisierung von Impulsgeneratoren
CH518658A (de) * 1970-07-07 1972-01-31 Patelhold Patentverwaltungs Un Verfahren zur verschlüsselten Nachrichtenübermittlung durch zeitliche Vertauschung von Informationselementen
CH524287A (de) * 1970-09-25 1972-06-15 Patelhold Patentverwertung Verfahren zur automatischen Einstellung eines Transversalfilters zur Impulsentzerrung
CH558993A (de) * 1973-03-19 1975-02-14 Patelhold Patentverwertung Verfahren und einrichtung zur verschluesselten nachrichtenuebertragung.
CH559483A5 (US07608600-20091027-C00054.png) * 1973-06-12 1975-02-28 Patelhold Patentverwertung
DE2704822C3 (de) * 1977-02-05 1980-10-23 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg Verfahren zur Sprachverschlüsselung nach dem Zeitverwürfelungsverfahren

Also Published As

Publication number Publication date
DK146748B (da) 1983-12-19
SE403023B (sv) 1978-07-24
CH604433A5 (US07608600-20091027-C00054.png) 1978-09-15
SE7513112L (sv) 1976-05-24
BE835826A (fr) 1976-03-16
FR2292386A1 (fr) 1976-06-18
NL164165C (nl) 1980-11-17
DK146748C (da) 1984-05-28
AT343722B (de) 1978-06-12
NL7513495A (nl) 1976-05-25
DE2455477B2 (de) 1977-08-25
FR2292386B1 (US07608600-20091027-C00054.png) 1980-02-08
NL164165B (nl) 1980-06-16
GB1515937A (en) 1978-06-28
ATA888375A (de) 1977-10-15
AU8689875A (en) 1977-06-02
DE2455477C3 (de) 1982-08-26
DK526975A (da) 1976-05-24
DE2455477A1 (de) 1976-05-26

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