JPH0620309B2 - テレビジョン信号のスクランブル方法およびデスクランブル装置 - Google Patents

テレビジョン信号のスクランブル方法およびデスクランブル装置

Info

Publication number
JPH0620309B2
JPH0620309B2 JP58166828A JP16682883A JPH0620309B2 JP H0620309 B2 JPH0620309 B2 JP H0620309B2 JP 58166828 A JP58166828 A JP 58166828A JP 16682883 A JP16682883 A JP 16682883A JP H0620309 B2 JPH0620309 B2 JP H0620309B2
Authority
JP
Japan
Prior art keywords
signal
chromaticity
luminance
time division
storage means
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.)
Expired - Lifetime
Application number
JP58166828A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5966287A (ja
Inventor
ジエラ−ル・ジヨセフ・マルセル・マリ−
ジヤン−ピエ−ル・アラゴン
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.)
RA RAJIOTEKUNIIKU
Original Assignee
RA RAJIOTEKUNIIKU
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 RA RAJIOTEKUNIIKU filed Critical RA RAJIOTEKUNIIKU
Publication of JPS5966287A publication Critical patent/JPS5966287A/ja
Publication of JPH0620309B2 publication Critical patent/JPH0620309B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N7/169—Systems operating in the time domain of the television signal
    • H04N7/1696—Systems operating in the time domain of the television signal by changing or reversing the order of active picture signal portions

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
JP58166828A 1982-09-14 1983-09-12 テレビジョン信号のスクランブル方法およびデスクランブル装置 Expired - Lifetime JPH0620309B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8215533A FR2533099A1 (fr) 1982-09-14 1982-09-14 Procede de brouillage d'images de television et dispositif de dechiffrage d'images ainsi brouillees
FR8215533 1982-09-14

Publications (2)

Publication Number Publication Date
JPS5966287A JPS5966287A (ja) 1984-04-14
JPH0620309B2 true JPH0620309B2 (ja) 1994-03-16

Family

ID=9277445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58166828A Expired - Lifetime JPH0620309B2 (ja) 1982-09-14 1983-09-12 テレビジョン信号のスクランブル方法およびデスクランブル装置

Country Status (5)

Country Link
US (1) US4747138A (enExample)
EP (1) EP0103339A1 (enExample)
JP (1) JPH0620309B2 (enExample)
DE (1) DE3382745T2 (enExample)
FR (1) FR2533099A1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115097B1 (fr) * 1982-12-20 1987-06-03 La Radiotechnique Portenseigne Générateur de séquences numériques pseudoaléatoires
FR2543386B1 (fr) * 1983-03-21 1987-03-20 Telediffusion Fse Procedes et dispositifs d'embrouillage et de desembrouillage pour images de television
FR2607341A1 (fr) * 1983-03-21 1988-05-27 Telediffusion Fse Procede d'embrouillage et de desembrouillage pour images de television
WO1984004013A1 (en) * 1983-03-28 1984-10-11 Indep Broadcasting Authority Encryption of television signals
FR2561478B1 (fr) * 1984-03-16 1987-06-26 Labo Electronique Physique Dispositif de dechiffrement et de decodage d'images de television codees selon le standard mac et brouillees par application aux signaux video de permutations circulaires
US4652903A (en) * 1984-09-21 1987-03-24 Scientific Atlanta, Inc. Frequency generation for multiplexed analog component color television encoding and decoding
FR2575891B1 (fr) * 1985-01-08 1987-02-20 Labo Electronique Physique Dispositif de decodage et de dechiffrement de signaux ayant subi un codage de type mac et un chiffrement par permutation circulaire autour d'un ou de deux points de coupure, et dispositif de codage et de chiffrement fonctionnant de facon similaire
US4723282A (en) * 1985-01-08 1988-02-02 U.S. Philips Corporation Method and apparatus of decoding and deciphering a rotated video signal
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.
US4994899A (en) * 1988-03-23 1991-02-19 Scientific Atlanta, Inc. Frequency generation for extended bandwidth MAC color television encoding and decoding
US4916736A (en) * 1988-06-07 1990-04-10 Macrovision Corporation Method and apparatus for encrypting and decrypting time domain signals
FR2642597A1 (fr) * 1989-01-27 1990-08-03 Labo Electronique Physique Etage d'emission pour systeme de transmission d'images de television a definition etendue, systeme de transmission incluant un tel etage, et etage de reception pour un tel systeme
US5138659A (en) * 1991-05-02 1992-08-11 General Instrument Corporation Conversion of television signal formats with retention of common control data stream
FR2705362B1 (fr) * 1993-05-18 1995-08-04 Agronomique Inst Nat Rech Clônage et expression du gêne de l'enzyme malolactique de Lactococcus lactis.
JP3372611B2 (ja) * 1993-10-18 2003-02-04 キヤノン株式会社 映像伝送システム、映像処理装置及び映像処理方法
JP3397975B2 (ja) * 1996-06-07 2003-04-21 三洋電機株式会社 ３次元映像のスクランブル方法
US6570990B1 (en) * 1998-11-13 2003-05-27 Lsi Logic Corporation Method of protecting high definition video signal
JP4395920B2 (ja) * 1999-05-14 2010-01-13 ソニー株式会社 映像信号出力装置、及び映像信号入力装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222418U (enExample) * 1975-08-06 1977-02-17
CA1097794A (en) * 1975-08-08 1981-03-17 Harold B. Shutterly Secure television transmission system
FR2431809A1 (fr) * 1978-07-20 1980-02-15 Telediffusion Fse Procedes et dispositifs de brouillage et de debrouillage pour images de television
US4335393A (en) * 1980-04-15 1982-06-15 Harris Video Systems, Inc. Method and system using sequentially encoded color and luminance processing of video type signals to improve picture quality

Also Published As

Publication number Publication date
FR2533099B1 (enExample) 1985-02-01
FR2533099A1 (fr) 1984-03-16
US4747138A (en) 1988-05-24
JPS5966287A (ja) 1984-04-14
DE3382745D1 (de) 1994-05-19
DE3382745T2 (de) 1994-10-13
EP0103339A1 (fr) 1984-03-21

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