NO845225L - Fremgangsmaate til kryptografisk overfoering av talesignaler og kommunikasjonsstasjon til utoevelse av fremgangsmaaten - Google Patents

Fremgangsmaate til kryptografisk overfoering av talesignaler og kommunikasjonsstasjon til utoevelse av fremgangsmaaten

Info

Publication number
NO845225L
NO845225L NO84845225A NO845225A NO845225L NO 845225 L NO845225 L NO 845225L NO 84845225 A NO84845225 A NO 84845225A NO 845225 A NO845225 A NO 845225A NO 845225 L NO845225 L NO 845225L
Authority
NO
Norway
Prior art keywords
speech
cryptographic
communication
procedure
stations
Prior art date
Application number
NO84845225A
Other languages
English (en)
Other versions
NO164629B (no
NO164629C (no
Inventor
Lars Thrane
Original Assignee
Sp Radio Prod As
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 Sp Radio Prod As filed Critical Sp Radio Prod As
Publication of NO845225L publication Critical patent/NO845225L/no
Publication of NO164629B publication Critical patent/NO164629B/no
Publication of NO164629C publication Critical patent/NO164629C/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Communication Control (AREA)
  • Radio Relay Systems (AREA)
  • Transmitters (AREA)
NO84845225A 1983-12-30 1984-12-21 Fremgangsmaate til kryptografisk overfoering av talesignaler og kommunikasjonsstasjon for utoevelse av fremgangsmaaten. NO164629C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK608483A DK152239C (da) 1983-12-30 1983-12-30 Fremgangsmaade til kryptografisk overfoering af talesignaler og kommunikationsstation til udoevelse af fremgangsmaaden

Publications (3)

Publication Number Publication Date
NO845225L true NO845225L (no) 1985-07-01
NO164629B NO164629B (no) 1990-07-16
NO164629C NO164629C (no) 1990-10-24

Family

ID=8147284

Family Applications (1)

Application Number Title Priority Date Filing Date
NO84845225A NO164629C (no) 1983-12-30 1984-12-21 Fremgangsmaate til kryptografisk overfoering av talesignaler og kommunikasjonsstasjon for utoevelse av fremgangsmaaten.

Country Status (8)

Country Link
US (1) US4856061A (no)
EP (1) EP0148015B1 (no)
AT (1) ATE48501T1 (no)
CA (1) CA1226904A (no)
DE (1) DE3480683D1 (no)
DK (1) DK152239C (no)
ES (1) ES8602322A1 (no)
NO (1) NO164629C (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU612961B3 (en) * 1991-01-17 1991-06-11 Edward Pyle Dawson Discrete cosine transform analog speech scrambling system
US5827374A (en) * 1995-02-24 1998-10-27 Mansur Industries Inc. Process for integrated recycling of cleaning solution in industrial washing equipment
US6029150A (en) * 1996-10-04 2000-02-22 Certco, Llc Payment and transactions in electronic commerce system
US7835523B1 (en) 2005-08-26 2010-11-16 Rockwell Collins, Inc. Cryptographic engine abstraction layer for a software defined radio

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091423A (en) * 1975-03-17 1978-05-23 Datotek, Inc. Synchronous digital data scrambling system
US4185166A (en) * 1975-04-14 1980-01-22 Datotek, Inc. Multi-mode digital enciphering system
US3970791A (en) * 1975-05-27 1976-07-20 The United States Of America As Represented By The Secretary Of The Navy Voice controlled disappearing audio delay line
US4086435A (en) * 1976-09-17 1978-04-25 Biosystems Research Group Ii Method of and means for scrambling and descrambling speech at audio frequencies
US4218582A (en) * 1977-10-06 1980-08-19 The Board Of Trustees Of The Leland Stanford Junior University Public key cryptographic apparatus and method
GB2099195B (en) * 1978-05-03 1983-05-18 Atalla Technovations Method and apparatus for securing data transmissions
US4268720A (en) * 1979-05-25 1981-05-19 Gte Laboratories Incorporated Scrambler speech transmission and synchronization system
US4322576A (en) * 1979-12-28 1982-03-30 Racal-Milgo, Inc. Message format for secure communication over data links
SE426128B (sv) * 1981-04-08 1982-12-06 Philips Svenska Ab Metod vid overforing av datameddelanden mellan tva stationer, samt overforingsanleggning for utforande av metoden
JPS57207453A (en) * 1981-06-16 1982-12-20 Fujitsu Ltd Managing system for key for encryption communication
US4434323A (en) * 1981-06-29 1984-02-28 Motorola, Inc. Scrambler key code synchronizer
US4453074A (en) * 1981-10-19 1984-06-05 American Express Company Protection system for intelligent cards
US4458109A (en) * 1982-02-05 1984-07-03 Siemens Corporation Method and apparatus providing registered mail features in an electronic communication system
DE3210081C2 (de) * 1982-03-19 1984-12-20 Siemens AG, 1000 Berlin und 8000 München Verfahren und Anordnung zum Übertragen von verschlüsselten Texten
US4723284A (en) * 1983-02-14 1988-02-02 Prime Computer, Inc. Authentication system
US4642424A (en) * 1984-01-03 1987-02-10 At&T Information Systems Inc. Cryptographic transmission system

Also Published As

Publication number Publication date
ATE48501T1 (de) 1989-12-15
US4856061A (en) 1989-08-08
EP0148015A2 (en) 1985-07-10
NO164629B (no) 1990-07-16
DK152239C (da) 1988-07-04
DE3480683D1 (de) 1990-01-11
EP0148015B1 (en) 1989-12-06
NO164629C (no) 1990-10-24
ES539170A0 (es) 1985-11-16
DK152239B (da) 1988-02-08
EP0148015A3 (en) 1986-11-26
DK608483D0 (da) 1983-12-30
DK608483A (da) 1985-07-01
CA1226904A (en) 1987-09-15
ES8602322A1 (es) 1985-11-16

Similar Documents

Publication Publication Date Title
US3973200A (en) Process for acknowledging calls in a system for wireless staff locators
CA1277712C (en) Duplex analog scrambler
SE8207043D0 (sv) Forfarande for synkronisering av radiosendare for synkron radiosendning
US5014314A (en) Method for developing and transmitting usage context information in an RF communication system
CA1092195A (en) Method and apparatus for enciphering and deciphering audio information
US4578532A (en) Method and apparatus for code transmission
US3893031A (en) Synchronization system for voice privacy unit
NO845225L (no) Fremgangsmaate til kryptografisk overfoering av talesignaler og kommunikasjonsstasjon til utoevelse av fremgangsmaaten
US3507980A (en) Communication system
US4646358A (en) Signaling arrangement for two-way radio communication
Bennett Secret telephony as a historical example of spread-spectrum communication
USH510H (en) Automatic authentication for voice transmissions
US4964165A (en) Method for the fast synchronization of vocoders coupled to one another by enciphering
US4314371A (en) Digital radio communications system with high noise immunity
GB1508971A (en) Teleprinter systems
JPS6115429A (ja) 無線選択呼出通信方式
JP2621857B2 (ja) 選択呼出方式
JPS55135436A (en) Mobile communication circuit control system
JPH01164139A (ja) 無線呼出方式における呼出信号秘匿方法
GB970142A (en) Simplex telegraph system with break-in facility
FR2404350A1 (fr) Systeme de diffusion de donnees
GB1315927A (en) Telephone systems
TW332958B (en) Encryption system and method for telephonic voice communication
FR2432803A2 (fr) Reseau de transmission a secret par commutation de frequence
GB1089555A (no)