DK52682A - PROCEDURES FOR REPLACING DELBAND - Google Patents

PROCEDURES FOR REPLACING DELBAND

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
Danish (da)
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/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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
DK52682A 1981-02-13 1982-02-08 PROCEDURES FOR REPLACING DELBAND DK52682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813105214 DE3105214A1 (en) 1981-02-13 1981-02-13 "SUB-TAPE EXCHANGE PROCEDURE"

Publications (1)

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

Family

ID=6124771

Family Applications (1)

Application Number Title Priority Date Filing Date
DK52682A DK52682A (en) 1981-02-13 1982-02-08 PROCEDURES FOR REPLACING DELBAND

Country Status (7)

Country Link
EP (1) EP0058318B1 (en)
CA (1) CA1186380A (en)
DE (2) DE3105214A1 (en)
DK (1) DK52682A (en)
ES (1) ES8302387A1 (en)
FI (1) FI820393L (en)
PT (1) PT74410B (en)

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 (en) * 1946-02-04 1947-05-31 Patelhold Patentverwertung Process and device for disguising the individual calls in a multi-channel system.
DE1273002B (en) * 1963-09-11 1968-07-18 Siemens Ag Device for the encrypted transmission of voice signals by interchanging subbands
DE2652607A1 (en) * 1976-11-19 1978-05-24 Licentia Gmbh Analogue information signal encoder - includes array of ring modulators and stores time and frequency multiplexed elements in digital form

Also Published As

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

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Legal Events

Date Code Title Description
ATS Application withdrawn