ZA754406B - Improvements in or relating to the camouflaged transmission of signals - Google Patents

Improvements in or relating to the camouflaged transmission of signals

Info

Publication number
ZA754406B
ZA754406B ZA00754406A ZA754406A ZA754406B ZA 754406 B ZA754406 B ZA 754406B ZA 00754406 A ZA00754406 A ZA 00754406A ZA 754406 A ZA754406 A ZA 754406A ZA 754406 B ZA754406 B ZA 754406B
Authority
ZA
South Africa
Prior art keywords
relating
signals
camouflaged
transmission
camouflaged transmission
Prior art date
Application number
ZA00754406A
Other languages
English (en)
Inventor
H Sontheim
H Bendel
Original Assignee
Siemens Ag
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
Priority claimed from DE19742434877 external-priority patent/DE2434877C3/de
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of ZA754406B publication Critical patent/ZA754406B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Television Systems (AREA)
  • Transmitters (AREA)
ZA00754406A 1974-07-19 1975-07-09 Improvements in or relating to the camouflaged transmission of signals ZA754406B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742434877 DE2434877C3 (de) 1974-07-19 Einrichtung zur verschleierten übertragung von Sprachsignalen

Publications (1)

Publication Number Publication Date
ZA754406B true ZA754406B (en) 1976-06-30

Family

ID=5921046

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00754406A ZA754406B (en) 1974-07-19 1975-07-09 Improvements in or relating to the camouflaged transmission of signals

Country Status (16)

Country Link
JP (1) JPS5826706B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT341003B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU501260B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE831528A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH596716A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK140914C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2285029A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1512696A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IE (1) IE41265B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IL (1) IL47692A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IN (1) IN147050B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1039917B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
LU (1) LU73007A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL169664C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE410259B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA754406B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151886A (en) * 1983-12-21 1985-07-24 British Broadcasting Corp Conditional-access broadcast transmission
CA1226914A (en) * 1984-01-26 1987-09-15 The University Of British Columbia Modem for pseudo noise communication on a.c. lines
JP2761281B2 (ja) * 1990-05-17 1998-06-04 富士通株式会社 マルチキャリア通信システムの暗号化通信方式

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1278172A (fr) * 1960-10-28 1961-12-08 Cie Ind Des Telephones Dispositif électronique de codage pour liaisons radioélectriques ou téléphoniques
FR2129013A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-03-11 1972-10-27 Snecma
GB1465923A (en) * 1973-04-03 1977-03-02 Siemens Ag Camouflaged speech signal transmission systems

Also Published As

Publication number Publication date
JPS5826706B2 (ja) 1983-06-04
GB1512696A (en) 1978-06-01
NL7508643A (nl) 1976-01-21
IN147050B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1979-10-27
JPS5134603A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-03-24
FR2285029A1 (fr) 1976-04-09
DK140914C (da) 1980-05-12
FR2285029B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-12-16
AU8290875A (en) 1977-01-13
AU501260B2 (en) 1979-06-14
DE2434877B2 (de) 1976-05-13
IE41265B1 (en) 1979-11-21
IT1039917B (it) 1979-12-10
IE41265L (en) 1976-01-19
DK140914B (da) 1979-12-03
CH596716A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-03-15
ATA526575A (de) 1977-05-15
IL47692A0 (en) 1975-12-31
SE7508246L (sv) 1976-01-20
NL169664B (nl) 1982-03-01
DK328275A (da) 1976-01-20
BE831528A (fr) 1976-01-19
IL47692A (en) 1977-11-30
LU73007A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-07-01
NL169664C (nl) 1982-08-02
SE410259B (sv) 1979-10-01
DE2434877A1 (de) 1976-01-29
AT341003B (de) 1978-01-10

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