AU6547594A - Coordinately coding and decoding a message signal - Google Patents

Coordinately coding and decoding a message signal

Info

Publication number
AU6547594A
AU6547594A AU65475/94A AU6547594A AU6547594A AU 6547594 A AU6547594 A AU 6547594A AU 65475/94 A AU65475/94 A AU 65475/94A AU 6547594 A AU6547594 A AU 6547594A AU 6547594 A AU6547594 A AU 6547594A
Authority
AU
Australia
Prior art keywords
coordinately
decoding
coding
message signal
message
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.)
Abandoned
Application number
AU65475/94A
Other languages
English (en)
Inventor
Erik Rickard Soderqvist
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU6547594A publication Critical patent/AU6547594A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
AU65475/94A 1993-04-15 1994-04-15 Coordinately coding and decoding a message signal Abandoned AU6547594A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9301236 1993-04-15
SE9301236A SE9301236L (sv) 1993-04-15 1993-04-15 Sätt och anordning för koordinerad kodning och avkodning av en TV-signal eller annan meddelande signal
PCT/SE1994/000338 WO1994024825A1 (en) 1993-04-15 1994-04-15 Coordinately coding and decoding a message signal

Publications (1)

Publication Number Publication Date
AU6547594A true AU6547594A (en) 1994-11-08

Family

ID=20389571

Family Applications (1)

Application Number Title Priority Date Filing Date
AU65475/94A Abandoned AU6547594A (en) 1993-04-15 1994-04-15 Coordinately coding and decoding a message signal

Country Status (3)

Country Link
AU (1) AU6547594A (sv)
SE (1) SE9301236L (sv)
WO (1) WO1994024825A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1061744A3 (en) * 1999-04-26 2003-05-14 Sarnoff Corporation Controlling access to a data stream

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789131A (en) * 1972-08-03 1974-01-29 Oak Industries Inc Selective coding system for subscription television
US3885089A (en) * 1973-02-16 1975-05-20 Hughes Aircraft Co Television scrambling system
US4590519A (en) * 1983-05-04 1986-05-20 Regency Electronics, Inc. Television signal scrambling/descrambling system
BE901468A (fr) * 1985-01-09 1985-05-02 Belge Radio Television Procede de codage et de decodage d'informations et appareil pour sa mise en oeuvre.
DE3501178A1 (de) * 1985-01-16 1986-07-17 Blaupunkt-Werke Gmbh, 3200 Hildesheim Verfahren und schaltungsanordnung zur verhinderung des unberechtigten empfangs verschluesselter fernsehsignale
US4817144A (en) * 1987-03-12 1989-03-28 Zenith Electronics Corporation Secure TV scrambling system using framing code switching

Also Published As

Publication number Publication date
WO1994024825A1 (en) 1994-10-27
SE9301236D0 (sv) 1993-04-15
SE9301236L (sv) 1994-10-16

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