NO843412L - Fremgangsmaater, anordninger og anlegg til tilsloering og gjenopprettelse ved overfoering eller kringkasting av fjernsynbilder - Google Patents

Fremgangsmaater, anordninger og anlegg til tilsloering og gjenopprettelse ved overfoering eller kringkasting av fjernsynbilder

Info

Publication number
NO843412L
NO843412L NO843412A NO843412A NO843412L NO 843412 L NO843412 L NO 843412L NO 843412 A NO843412 A NO 843412A NO 843412 A NO843412 A NO 843412A NO 843412 L NO843412 L NO 843412L
Authority
NO
Norway
Prior art keywords
segments
pair
dividing
discover
installations
Prior art date
Application number
NO843412A
Other languages
English (en)
Other versions
NO165940B (no
NO165940C (no
Inventor
Christian Jean Francoi Gautier
Original Assignee
Telediffusion Fse
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 Telediffusion Fse filed Critical Telediffusion Fse
Publication of NO843412L publication Critical patent/NO843412L/no
Publication of NO165940B publication Critical patent/NO165940B/no
Publication of NO165940C publication Critical patent/NO165940C/no

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)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
  • Stereophonic System (AREA)
  • Studio Circuits (AREA)
  • Silicon Polymers (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Buffer Packaging (AREA)
NO843412A 1983-03-21 1984-08-27 Fremg. til omkasting og gjenopprettelse av et nyttesignali en videosignallinje, samt anordninger til utfoerelse av fremg. og et system hvor slike anordninger kommer til anv.for overfoering eller kringkasting av fjernsynsbilder. NO165940C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8305076A FR2543386B1 (fr) 1983-03-21 1983-03-21 Procedes et dispositifs d'embrouillage et de desembrouillage pour images de television

Publications (3)

Publication Number Publication Date
NO843412L true NO843412L (no) 1986-02-28
NO165940B NO165940B (no) 1991-01-21
NO165940C NO165940C (no) 1991-05-02

Family

ID=9287308

Family Applications (1)

Application Number Title Priority Date Filing Date
NO843412A NO165940C (no) 1983-03-21 1984-08-27 Fremg. til omkasting og gjenopprettelse av et nyttesignali en videosignallinje, samt anordninger til utfoerelse av fremg. og et system hvor slike anordninger kommer til anv.for overfoering eller kringkasting av fjernsynsbilder.

Country Status (7)

Country Link
US (2) US4633310A (no)
EP (1) EP0119945B1 (no)
AT (1) ATE27756T1 (no)
DE (1) DE3464188D1 (no)
DK (1) DK169090B1 (no)
FR (1) FR2543386B1 (no)
NO (1) NO165940C (no)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543386B1 (fr) * 1983-03-21 1987-03-20 Telediffusion Fse Procedes et dispositifs d'embrouillage et de desembrouillage pour images de television
US4723282A (en) * 1985-01-08 1988-02-02 U.S. Philips Corporation Method and apparatus of decoding and deciphering a rotated video signal
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
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.
FR2584556B1 (fr) * 1985-07-02 1987-09-18 France Etat Procede d'embrouillage et de desembrouillage d'images de television
US4827510A (en) * 1986-02-24 1989-05-02 Trw Inc. Minimization of amplitude gaps in a line-spin scrambled video signal
US4964162A (en) * 1985-09-09 1990-10-16 Trw Inc. Secure television signal encoding and decoding system
DE3822345C1 (en) * 1988-07-01 1989-10-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De Method of improving coding security
US5249229A (en) * 1989-04-04 1993-09-28 Laboratoire Europeen De Recherches Electroniques Avancees Societe En Nom Collectif Device and method for generating control signals
FR2645384B1 (fr) * 1989-04-04 1995-09-01 Europ Rech Electr Lab Dispositif et procede de generation de signaux de controle
NL194657C (nl) * 1989-08-04 2002-10-04 Samsung Electronics Co Ltd Kanaal+ decoderschakelketen voor videocassetteregistratie-inrichtingen.
KR930004823B1 (ko) * 1990-04-14 1993-06-08 삼성전자 주식회사 텔레비젼 신호의 스크램블링 및 디스크램블링 회로
CA2084453A1 (en) * 1991-12-06 1993-06-07 Stephen S. Walker Method and apparatus for tagging video frames
US5455860A (en) * 1992-04-17 1995-10-03 Matsushita Electric Industrial Co., Ltd. Scramble codec
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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1097794A (en) * 1975-08-08 1981-03-17 Harold B. Shutterly Secure television transmission system
GB1602119A (en) * 1977-11-18 1981-11-04 Shiu Hung Cheung Pay-tv system
FR2431809A1 (fr) * 1978-07-20 1980-02-15 Telediffusion Fse Procedes et dispositifs de brouillage et de debrouillage pour images de television
US4266243A (en) * 1979-04-25 1981-05-05 Westinghouse Electric Corp. Scrambling system for television sound signals
CA1182555A (en) * 1980-02-25 1985-02-12 Robert S. Block Method and system for secure transmission and reception of video information, particularly for television
US4389671A (en) * 1980-09-29 1983-06-21 Harris Corporation Digitally-controlled analog encrypton
US4405942A (en) * 1981-02-25 1983-09-20 Telease, Inc. Method and system for secure transmission and reception of video information, particularly for television
US4600942A (en) * 1982-07-29 1986-07-15 Telease, Inc. Secure coding and decoding system and method for television program signals
FR2533099A1 (fr) * 1982-09-14 1984-03-16 Radiotechnique Procede de brouillage d'images de television et dispositif de dechiffrage d'images ainsi brouillees
FR2543386B1 (fr) * 1983-03-21 1987-03-20 Telediffusion Fse Procedes et dispositifs d'embrouillage et de desembrouillage pour images de television

Also Published As

Publication number Publication date
NO165940B (no) 1991-01-21
US4731837A (en) 1988-03-15
ATE27756T1 (de) 1987-06-15
DE3464188D1 (en) 1987-07-16
DK169090B1 (da) 1994-08-08
EP0119945A1 (fr) 1984-09-26
FR2543386A1 (fr) 1984-09-28
EP0119945B1 (fr) 1987-06-10
DK379284A (da) 1986-02-07
US4633310A (en) 1986-12-30
NO165940C (no) 1991-05-02
FR2543386B1 (fr) 1987-03-20
DK379284D0 (da) 1984-08-06

Similar Documents

Publication Publication Date Title
NO843412L (no) Fremgangsmaater, anordninger og anlegg til tilsloering og gjenopprettelse ved overfoering eller kringkasting av fjernsynbilder
AU567348B2 (en) High speed video camera
KR900702731A (ko) 비디오 신호 동기 시스템
DK0775419T3 (da) Fremgangsmåde og apparat til maskering af et videosignal med fuld netværkstransmission og optageevne
AU559403B2 (en) Video encryption system
JPS5636280A (en) Video signal cipher processing system
BR8402195A (pt) Processo e disposicao para a transmissao de sinais digitais de luminancia e de crominancia da televisao
DE3785589D1 (de) Bildverarbeitungssystem.
EP0518129A3 (en) Method and apparatus for enhancing the security of a scrambled television signal
GB2144298A (en) Scrambling multiplexed component video signals
US3496286A (en) Two-camera color television system
CA1204162A (en) Audio scrambler utilizing an auxiliary channel for synchronizing the descrambler
JPS5250611A (en) Imagery communication method
JPS51113537A (en) Color television system
JPS526407A (en) Picture collating system by 2 tv cameras
JPH08182020A (ja) 映像信号送信装置と映像信号受信装置
JPH0779465B2 (ja) 映像スクランブル伝送方式とその送受信装置
JPS5272117A (en) Information transmission method
JPS5260517A (en) Synchronization of communication systems utilizing communication satel lite
JPS5411623A (en) Synchronizing method of facsimile video signal
JPS5353921A (en) Multiplex transmitting system for color television signal
JPS5398727A (en) Interpolation reproducing system for video signal
JPS56115056A (en) Resynchronization circuit
JPS61236235A (ja) デイジタル無線通信信号の接続方法
JPS5444822A (en) Connection system of television system