SE7508246L - DEVICE FOR CODED TRANSMISSION OF NUMBER SIGNALS. - Google Patents

DEVICE FOR CODED TRANSMISSION OF NUMBER SIGNALS.

Info

Publication number
SE7508246L
SE7508246L SE7508246A SE7508246A SE7508246L SE 7508246 L SE7508246 L SE 7508246L SE 7508246 A SE7508246 A SE 7508246A SE 7508246 A SE7508246 A SE 7508246A SE 7508246 L SE7508246 L SE 7508246L
Authority
SE
Sweden
Prior art keywords
coded transmission
number signals
signals
coded
transmission
Prior art date
Application number
SE7508246A
Other languages
Swedish (sv)
Other versions
SE410259B (en
Inventor
H Bendel
H Sontheim
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/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of SE7508246L publication Critical patent/SE7508246L/en
Publication of SE410259B publication Critical patent/SE410259B/en

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)
SE7508246A 1974-07-19 1975-07-18 DEVICE FOR DISTORTED TRANSMISSION OF NUMBER SIGNALS SE410259B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742434877 DE2434877C3 (en) 1974-07-19 Device for the disguised transmission of speech signals

Publications (2)

Publication Number Publication Date
SE7508246L true SE7508246L (en) 1976-01-20
SE410259B SE410259B (en) 1979-10-01

Family

ID=5921046

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7508246A SE410259B (en) 1974-07-19 1975-07-18 DEVICE FOR DISTORTED TRANSMISSION OF NUMBER SIGNALS

Country Status (16)

Country Link
JP (1) JPS5826706B2 (en)
AT (1) AT341003B (en)
AU (1) AU501260B2 (en)
BE (1) BE831528A (en)
CH (1) CH596716A5 (en)
DK (1) DK140914C (en)
FR (1) FR2285029A1 (en)
GB (1) GB1512696A (en)
IE (1) IE41265B1 (en)
IL (1) IL47692A (en)
IN (1) IN147050B (en)
IT (1) IT1039917B (en)
LU (1) LU73007A1 (en)
NL (1) NL169664C (en)
SE (1) SE410259B (en)
ZA (1) ZA754406B (en)

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 (en) * 1990-05-17 1998-06-04 富士通株式会社 Encrypted communication method for multi-carrier communication system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1278172A (en) * 1960-10-28 1961-12-08 Cie Ind Des Telephones Electronic coding device for radio or telephone links
FR2129013A5 (en) * 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
IT1039917B (en) 1979-12-10
AU501260B2 (en) 1979-06-14
FR2285029B1 (en) 1977-12-16
AU8290875A (en) 1977-01-13
IE41265B1 (en) 1979-11-21
LU73007A1 (en) 1976-07-01
NL7508643A (en) 1976-01-21
IL47692A (en) 1977-11-30
GB1512696A (en) 1978-06-01
NL169664B (en) 1982-03-01
BE831528A (en) 1976-01-19
DK328275A (en) 1976-01-20
SE410259B (en) 1979-10-01
ATA526575A (en) 1977-05-15
NL169664C (en) 1982-08-02
IL47692A0 (en) 1975-12-31
DE2434877B2 (en) 1976-05-13
DE2434877A1 (en) 1976-01-29
FR2285029A1 (en) 1976-04-09
AT341003B (en) 1978-01-10
DK140914B (en) 1979-12-03
IE41265L (en) 1976-01-19
JPS5134603A (en) 1976-03-24
DK140914C (en) 1980-05-12
CH596716A5 (en) 1978-03-15
IN147050B (en) 1979-10-27
JPS5826706B2 (en) 1983-06-04
ZA754406B (en) 1976-06-30

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