SE416604B - Forfarande for kryptering respektive dekryptering av toninformation, samt anordning for genomforande av forfarandet - Google Patents

Forfarande for kryptering respektive dekryptering av toninformation, samt anordning for genomforande av forfarandet

Info

Publication number
SE416604B
SE416604B SE7706207A SE7706207A SE416604B SE 416604 B SE416604 B SE 416604B SE 7706207 A SE7706207 A SE 7706207A SE 7706207 A SE7706207 A SE 7706207A SE 416604 B SE416604 B SE 416604B
Authority
SE
Sweden
Prior art keywords
procedure
cryping
implementation
tone information
respective decryption
Prior art date
Application number
SE7706207A
Other languages
English (en)
Swedish (sv)
Other versions
SE7706207L (sv
Inventor
P Frutiger
Original Assignee
Europ Handelsges Anst
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 Europ Handelsges Anst filed Critical Europ Handelsges Anst
Publication of SE7706207L publication Critical patent/SE7706207L/
Publication of SE416604B publication Critical patent/SE416604B/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)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Storage Device Security (AREA)
  • Document Processing Apparatus (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Electrophonic Musical Instruments (AREA)
SE7706207A 1976-06-01 1977-05-26 Forfarande for kryptering respektive dekryptering av toninformation, samt anordning for genomforande av forfarandet SE416604B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH689376A CH607506A5 (nl) 1976-06-01 1976-06-01

Publications (2)

Publication Number Publication Date
SE7706207L SE7706207L (sv) 1977-12-02
SE416604B true SE416604B (sv) 1981-01-19

Family

ID=4316707

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7706207A SE416604B (sv) 1976-06-01 1977-05-26 Forfarande for kryptering respektive dekryptering av toninformation, samt anordning for genomforande av forfarandet

Country Status (19)

Country Link
US (1) US4149035A (nl)
JP (1) JPS534401A (nl)
AR (1) AR216465A1 (nl)
AT (1) AT363129B (nl)
BE (1) BE854626A (nl)
BR (1) BR7703539A (nl)
CA (1) CA1092195A (nl)
CH (1) CH607506A5 (nl)
DE (1) DE2723804C2 (nl)
DK (1) DK239177A (nl)
ES (1) ES458856A1 (nl)
FI (1) FI771737A (nl)
FR (1) FR2354005A1 (nl)
GB (1) GB1567868A (nl)
IT (1) IT1118027B (nl)
NL (1) NL7705062A (nl)
NO (1) NO144722C (nl)
SE (1) SE416604B (nl)
ZA (1) ZA773157B (nl)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221931A (en) * 1977-10-17 1980-09-09 Harris Corporation Time division multiplied speech scrambler
US4232194A (en) * 1979-03-16 1980-11-04 Ocean Technology, Inc. Voice encryption system
US4278840A (en) * 1979-03-23 1981-07-14 Datotek, Inc. Dynamic frequency and time voice encryption system and method
US4443660A (en) * 1980-02-04 1984-04-17 Rockwell International Corporation System and method for encrypting a voice signal
DE3138523A1 (de) * 1981-09-28 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Verfahren zur abhoersicheren frequenzbandkomprimierten uebertragung von sprachsignalen
US4433211A (en) * 1981-11-04 1984-02-21 Technical Communications Corporation Privacy communication system employing time/frequency transformation
US4591673A (en) * 1982-05-10 1986-05-27 Lee Lin Shan Frequency or time domain speech scrambling technique and system which does not require any frame synchronization
US4551580A (en) * 1982-11-22 1985-11-05 At&T Bell Laboratories Time-frequency scrambler
US4763357A (en) * 1985-04-18 1988-08-09 Barr William S Method and apparatus for providing secure electronic communications
GB2182229B (en) * 1985-10-25 1989-10-04 Racal Res Ltd Speech scramblers
US4893339A (en) * 1986-09-03 1990-01-09 Motorola, Inc. Secure communication system
EP0313029A1 (de) * 1987-10-21 1989-04-26 Siemens Aktiengesellschaft Österreich Vorrichtung zur verschleierten Übertragung analoger Signale
US6061449A (en) * 1997-10-10 2000-05-09 General Instrument Corporation Secure processor with external memory using block chaining and block re-ordering
EP1617586B1 (fr) * 2004-07-06 2008-09-03 Proton World International N.V. Chiffrement en continu du contenu d'une mémoire externe à un processeur
EP1615369A1 (fr) * 2004-07-06 2006-01-11 Proton World International N.V. Chiffrement par blocs du contenu d'une mémoire externe à un processeur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH248975A (de) * 1946-02-04 1947-05-31 Patelhold Patentverwertung Verfahren und Einrichtung zur Verschleierung der einzelnen Gespräche einer Mehrkanalanlage.
US3696207A (en) * 1969-05-14 1972-10-03 Philips Corp System for the transmission of intelligence by means of scrambled audiosignals
CH518658A (de) * 1970-07-07 1972-01-31 Patelhold Patentverwaltungs Un Verfahren zur verschlüsselten Nachrichtenübermittlung durch zeitliche Vertauschung von Informationselementen
US3921151A (en) * 1971-06-21 1975-11-18 Patelhold Patentwerwertungs & Apparatus for enciphering transmitted data by interchanging signal elements of the transmitted data without overlapping or omitting any elements within the transmitted signal train
US3798360A (en) * 1971-06-30 1974-03-19 Ibm Step code ciphering system
US3991271A (en) * 1972-09-29 1976-11-09 Datotek, Inc. Voice security method and system

Also Published As

Publication number Publication date
ATA350977A (de) 1980-12-15
US4149035A (en) 1979-04-10
CA1092195A (en) 1980-12-23
GB1567868A (en) 1980-05-21
FR2354005A1 (fr) 1977-12-30
NO771908L (no) 1977-12-02
AT363129B (de) 1981-07-10
FI771737A (nl) 1977-12-02
FR2354005B3 (nl) 1980-04-04
ES458856A1 (es) 1978-03-16
BR7703539A (pt) 1978-03-14
NL7705062A (nl) 1977-12-05
BE854626A (fr) 1977-11-14
DE2723804A1 (de) 1977-12-15
ZA773157B (en) 1979-01-31
JPS534401A (en) 1978-01-17
DE2723804C2 (de) 1986-02-27
IT1118027B (it) 1986-02-24
NO144722B (no) 1981-07-13
DK239177A (da) 1977-12-02
CH607506A5 (nl) 1978-12-29
SE7706207L (sv) 1977-12-02
NO144722C (no) 1981-10-21
AR216465A1 (es) 1979-12-28

Similar Documents

Publication Publication Date Title
SE416083B (sv) Forfalskningssekert dokument samt forfarande for framstellning av detsamma
SE421485B (sv) Forfarande for inpassning av tandriktare samt tandriktare derfor
NL7710366A (nl) Beveiligingsinrichting.
NO781515L (no) Beskyttet dokument samt fremgangsmaate for fremstilling av slikt dokument
NL7712068A (nl) Beveiligde vergrendelings- en controleinrichting.
DK357677A (da) Bererfikserede enzymer samt fremgangsmade til fremstilling og anvendelse heraf
AT356401B (de) Aufzeichnungsverfahren
SE416604B (sv) Forfarande for kryptering respektive dekryptering av toninformation, samt anordning for genomforande av forfarandet
SE7505738L (sv) Bikarboneringsforfarande samt anordning for utforande av forfarandet.
NO780252L (no) Blokk-kopolymer, samt fremgangsmaate for fremstilling av et slikt
NL7714067A (nl) Elektrofotografische werkwijze en inrichting.
NL7708950A (nl) Richt- en stelinrichting.
DK25177A (da) 1,2-benzisothiazolinoner-3 samt fremgangsmade til fremstilling deraf
DK388377A (da) Cephalosporiner samt fremgangsmaade til fremstilling deraf
NL7713006A (nl) Opneem- en/of weergeefinrichting.
SE7710036L (sv) Anordning for upptagande av bladformiga koncept for kontors-, data- eller fjerrskrivmaskiner
SE432658B (sv) Forfarande for att alstra hogtrycksanga samt anordning for att genomfora forfarandet
IT1090083B (it) Apparecchio e procedimento per governare focolari accesi
NO803334L (no) Anordning til haandtering av ankre og lignende.
SE7609848L (sv) Plansil, samt forfarande for tillverkning av densamma
SE406401B (sv) Forfarande for adaptiv ekoutsleckning samt anordning for genomforande av forfarandet
DK402877A (da) 1-amino-2-hydroxy-3-heterocyclyloxy-propansalte deraf samt fremgangsmaade til fremstilling deraf
DK569077A (da) Fremgangsmaade til fordeling af tofligede kapsler samt kapsel til udoevelse af fremgangsmaaden
SE7604720L (sv) Armerat plastror samt forfarande for framstellning derav
DK159160C (da) Nitroaryl-malto-n-osider samt fremgangsmaade til fremstilling deraf

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7706207-3

Effective date: 19880318

Format of ref document f/p: F