DK52682A - Fremgangsmaade til ombytning af delbaand - Google Patents

Fremgangsmaade til ombytning af delbaand

Info

Publication number
DK52682A
DK52682A DK52682A DK52682A DK52682A DK 52682 A DK52682 A DK 52682A DK 52682 A DK52682 A DK 52682A DK 52682 A DK52682 A DK 52682A DK 52682 A DK52682 A DK 52682A
Authority
DK
Denmark
Prior art keywords
delband
replacing
procedures
replacing delband
Prior art date
Application number
DK52682A
Other languages
English (en)
Inventor
H Goeckler
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of DK52682A publication Critical patent/DK52682A/da

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DK52682A 1981-02-13 1982-02-08 Fremgangsmaade til ombytning af delbaand DK52682A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813105214 DE3105214A1 (de) 1981-02-13 1981-02-13 "teilbandvertauschungsverfahren"

Publications (1)

Publication Number Publication Date
DK52682A true DK52682A (da) 1982-08-14

Family

ID=6124771

Family Applications (1)

Application Number Title Priority Date Filing Date
DK52682A DK52682A (da) 1981-02-13 1982-02-08 Fremgangsmaade til ombytning af delbaand

Country Status (7)

Country Link
EP (1) EP0058318B1 (da)
CA (1) CA1186380A (da)
DE (2) DE3105214A1 (da)
DK (1) DK52682A (da)
ES (1) ES509565A0 (da)
FI (1) FI820393L (da)
PT (1) PT74410B (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6424648A (en) * 1987-07-21 1989-01-26 Fujitsu Ltd Privacy call equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408692A (en) * 1942-04-29 1946-10-01 Rca Corp Signaling system
CH248975A (de) * 1946-02-04 1947-05-31 Patelhold Patentverwertung Verfahren und Einrichtung zur Verschleierung der einzelnen Gespräche einer Mehrkanalanlage.
DE1273002B (de) * 1963-09-11 1968-07-18 Siemens Ag Einrichtung zur verschluesselten UEbertragung von Sprachsignalen durch Vertauschung von Teilbaendern
DE2652607A1 (de) * 1976-11-19 1978-05-24 Licentia Gmbh Verfahren zum verschleierten uebertragen von nachrichtensignalen

Also Published As

Publication number Publication date
ES8302387A1 (es) 1982-12-16
PT74410B (de) 1983-10-28
DE3260506D1 (en) 1984-09-13
EP0058318B1 (de) 1984-08-08
DE3105214A1 (de) 1982-09-09
EP0058318A1 (de) 1982-08-25
PT74410A (de) 1982-03-01
ES509565A0 (es) 1982-12-16
FI820393L (fi) 1982-08-14
CA1186380A (en) 1985-04-30

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Legal Events

Date Code Title Description
ATS Application withdrawn