SE397035B - PROCEDURE FOR DISTORTION OF NUMBER SIGNALS AND COUPLING DEVICE FOR PERFORMING THE PROCEDURE - Google Patents

PROCEDURE FOR DISTORTION OF NUMBER SIGNALS AND COUPLING DEVICE FOR PERFORMING THE PROCEDURE

Info

Publication number
SE397035B
SE397035B SE7404424A SE7404424A SE397035B SE 397035 B SE397035 B SE 397035B SE 7404424 A SE7404424 A SE 7404424A SE 7404424 A SE7404424 A SE 7404424A SE 397035 B SE397035 B SE 397035B
Authority
SE
Sweden
Prior art keywords
procedure
distortion
coupling device
number signals
signals
Prior art date
Application number
SE7404424A
Other languages
Swedish (sv)
Inventor
H Bendel
K Buchmann
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 DE19732316647 external-priority patent/DE2316647C3/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of SE397035B publication Critical patent/SE397035B/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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Noise Elimination (AREA)
SE7404424A 1973-04-03 1974-04-02 PROCEDURE FOR DISTORTION OF NUMBER SIGNALS AND COUPLING DEVICE FOR PERFORMING THE PROCEDURE SE397035B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732316647 DE2316647C3 (en) 1973-04-03 Method for the disguised transmission of speech signals

Publications (1)

Publication Number Publication Date
SE397035B true SE397035B (en) 1977-10-10

Family

ID=5876880

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7404424A SE397035B (en) 1973-04-03 1974-04-02 PROCEDURE FOR DISTORTION OF NUMBER SIGNALS AND COUPLING DEVICE FOR PERFORMING THE PROCEDURE

Country Status (14)

Country Link
AT (1) AT333851B (en)
AU (1) AU484739B2 (en)
BE (1) BE813245A (en)
CH (1) CH576215A5 (en)
DK (1) DK137000C (en)
FR (1) FR2224946B1 (en)
GB (1) GB1465923A (en)
IE (1) IE39093B1 (en)
IL (1) IL44495A (en)
IT (1) IT1011198B (en)
LU (1) LU69773A1 (en)
NL (1) NL167069C (en)
SE (1) SE397035B (en)
ZA (1) ZA742085B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH596716A5 (en) * 1974-07-19 1978-03-15 Siemens Ag
DE3735781A1 (en) * 1987-10-22 1989-05-03 Grundig Emv METHOD FOR VOICE ENCRYPTION WITH SIMULTANEOUS DATA TRANSMISSION IN NARROW-BAND TRANSMISSION SYSTEMS
ATE527768T1 (en) * 2008-10-17 2011-10-15 Signalgenerix Ltd ENCRYPTION OF INFORMATION SIGNALS
RU2602598C1 (en) * 2015-09-14 2016-11-20 Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования "ВОЕННАЯ АКАДЕМИЯ СВЯЗИ имени Маршала Советского Союза С.М. Буденного" Министерства обороны Российской Федерации Method of generating and processing signal built in masking interference

Also Published As

Publication number Publication date
IL44495A (en) 1977-01-31
IE39093B1 (en) 1978-08-02
IE39093L (en) 1974-10-03
AT333851B (en) 1976-12-10
FR2224946A1 (en) 1974-10-31
CH576215A5 (en) 1976-05-31
DE2316647A1 (en) 1974-10-17
NL167069C (en) 1981-10-15
ZA742085B (en) 1975-03-26
IT1011198B (en) 1977-01-20
FR2224946B1 (en) 1979-05-25
LU69773A1 (en) 1974-07-18
BE813245A (en) 1974-10-03
NL7404542A (en) 1974-10-07
GB1465923A (en) 1977-03-02
IL44495A0 (en) 1974-06-30
DE2316647B2 (en) 1975-10-30
DK137000C (en) 1978-05-29
DK137000B (en) 1977-12-27
AU6738374A (en) 1975-10-02
AU484739B2 (en) 1975-10-02
ATA270674A (en) 1976-04-15

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