EP0095923A3 - Systeme zum Verschleierung von Übertragungen - Google Patents

Systeme zum Verschleierung von Übertragungen Download PDF

Info

Publication number
EP0095923A3
EP0095923A3 EP83303100A EP83303100A EP0095923A3 EP 0095923 A3 EP0095923 A3 EP 0095923A3 EP 83303100 A EP83303100 A EP 83303100A EP 83303100 A EP83303100 A EP 83303100A EP 0095923 A3 EP0095923 A3 EP 0095923A3
Authority
EP
European Patent Office
Prior art keywords
reorganisation
blocks
communications
binary words
scrambling systems
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP83303100A
Other languages
English (en)
French (fr)
Other versions
EP0095923A2 (de
Inventor
Kenneth Austin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
GE Healthcare UK Ltd
Plessey Co Ltd
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 GE Healthcare UK Ltd, Plessey Co Ltd filed Critical GE Healthcare UK Ltd
Publication of EP0095923A2 publication Critical patent/EP0095923A2/de
Publication of EP0095923A3 publication Critical patent/EP0095923A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
EP83303100A 1982-06-02 1983-05-31 Systeme zum Verschleierung von Übertragungen Withdrawn EP0095923A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8216137 1982-06-02
GB8216137 1982-06-02

Publications (2)

Publication Number Publication Date
EP0095923A2 EP0095923A2 (de) 1983-12-07
EP0095923A3 true EP0095923A3 (de) 1985-08-21

Family

ID=10530811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83303100A Withdrawn EP0095923A3 (de) 1982-06-02 1983-05-31 Systeme zum Verschleierung von Übertragungen

Country Status (2)

Country Link
EP (1) EP0095923A3 (de)
CA (1) CA1205540A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151886A (en) * 1983-12-21 1985-07-24 British Broadcasting Corp Conditional-access broadcast transmission
CA2162125C (en) * 1993-05-05 2005-09-20 Sagetech Inc. A repertoire of mappings for a cryptosystem
DE69322376T2 (de) * 1993-05-05 1999-05-06 Zunquan San Diego Calif. Liu Einrichtung und Verfahren zur Datenverschlüsselung
GB2288519A (en) * 1994-04-05 1995-10-18 Ibm Data encryption
DE4425158C2 (de) * 1994-07-16 2003-07-03 Deutsche Telekom Ag Verfahren und Anordnung zur Realisierung von kryptologischen Funktionen
GB2386041A (en) * 2002-03-01 2003-09-03 Sensaura Ltd A method of modifying intermittent audio signals such as speech or musical notes in real time
FR2837644A1 (fr) * 2002-10-25 2003-09-26 Canal Plus Technologies Procede de transmission securisee de messages ou de donnees entre deux entites
US20060222186A1 (en) * 2005-04-05 2006-10-05 Paige Robert F Multi-channel audio switch
ITRM20070010A1 (it) * 2007-01-09 2008-07-10 Telecomponenti S R L Metodo di elaborazione di un segnale digitale e sistema utilizzante tale metodo.
FR2927493B1 (fr) * 2008-02-08 2010-06-11 Philippe Thorel Procede et systeme de securisation de diffusion de donnees

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2307441C1 (de) * 1973-02-15 1975-05-07 Licentia Gmbh Verfahren zum Verschleiern von Sprachsignalen
FR2379947A1 (fr) * 1977-02-03 1978-09-01 Secre Procede et dispositif de brouillage permettant la discretion dans la transmission d'informations
US4229817A (en) * 1978-04-28 1980-10-21 Datotek, Inc. Portable electronic cryptographic device
WO1983001717A1 (en) * 1981-11-04 1983-05-11 Mccalmont, Arnold, M. Privacy communication system employing time/frequency transformation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2307441C1 (de) * 1973-02-15 1975-05-07 Licentia Gmbh Verfahren zum Verschleiern von Sprachsignalen
FR2379947A1 (fr) * 1977-02-03 1978-09-01 Secre Procede et dispositif de brouillage permettant la discretion dans la transmission d'informations
US4229817A (en) * 1978-04-28 1980-10-21 Datotek, Inc. Portable electronic cryptographic device
WO1983001717A1 (en) * 1981-11-04 1983-05-11 Mccalmont, Arnold, M. Privacy communication system employing time/frequency transformation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
1980 CARNAHAN CONFERENCE ON CRIME COUNTERMEASURES, 14th-16th May 1980, Lexington, Kentucky, pages 27-37, New York, US; S. UDALOV: "Analog voice privacy with a microprocessor" *
TECHNISCHE RUNDSCHAU, vol. 68, no. 9, 2nd March 1976, page 21, Bern, CH; "Sprachverschleierungsgerät" *

Also Published As

Publication number Publication date
EP0095923A2 (de) 1983-12-07
CA1205540A (en) 1986-06-03

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THE PLESSEY COMPANY PLC

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Effective date: 19840416

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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Effective date: 19871109

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18D Application deemed to be withdrawn

Effective date: 19890704

RIN1 Information on inventor provided before grant (corrected)

Inventor name: AUSTIN, KENNETH