ATE27756T1 - Verfahren und anlage zur verschleierung und entschleierung von fernsehbildern. - Google Patents

Verfahren und anlage zur verschleierung und entschleierung von fernsehbildern.

Info

Publication number
ATE27756T1
ATE27756T1 AT84460002T AT84460002T ATE27756T1 AT E27756 T1 ATE27756 T1 AT E27756T1 AT 84460002 T AT84460002 T AT 84460002T AT 84460002 T AT84460002 T AT 84460002T AT E27756 T1 ATE27756 T1 AT E27756T1
Authority
AT
Austria
Prior art keywords
segments
pair
dividing
signal
reception
Prior art date
Application number
AT84460002T
Other languages
English (en)
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
Application granted granted Critical
Publication of ATE27756T1 publication Critical patent/ATE27756T1/de

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)
  • Buffer Packaging (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
AT84460002T 1983-03-21 1984-03-20 Verfahren und anlage zur verschleierung und entschleierung von fernsehbildern. ATE27756T1 (de)

Applications Claiming Priority (2)

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
EP84460002A EP0119945B1 (de) 1983-03-21 1984-03-20 Verfahren und Anlage zur Verschleierung und Entschleierung von Fernsehbildern

Publications (1)

Publication Number Publication Date
ATE27756T1 true ATE27756T1 (de) 1987-06-15

Family

ID=9287308

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84460002T ATE27756T1 (de) 1983-03-21 1984-03-20 Verfahren und anlage zur verschleierung und entschleierung von fernsehbildern.

Country Status (7)

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

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
FR2645384B1 (fr) * 1989-04-04 1995-09-01 Europ Rech Electr Lab Dispositif et procede de generation de signaux de controle
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
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
EP0571753B1 (de) * 1992-04-17 1999-03-31 Matsushita Electric Industrial Co., Ltd. Videorecorder
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
FR2543386B1 (fr) 1987-03-20
DE3464188D1 (en) 1987-07-16
NO165940B (no) 1991-01-21
US4633310A (en) 1986-12-30
DK379284A (da) 1986-02-07
FR2543386A1 (fr) 1984-09-28
DK169090B1 (da) 1994-08-08
NO165940C (no) 1991-05-02
EP0119945B1 (de) 1987-06-10
DK379284D0 (da) 1984-08-06
EP0119945A1 (de) 1984-09-26
NO843412L (no) 1986-02-28
US4731837A (en) 1988-03-15

Similar Documents

Publication Publication Date Title
ATE27756T1 (de) Verfahren und anlage zur verschleierung und entschleierung von fernsehbildern.
FI911123A0 (fi) Videosignalsynkroniseringssystem saosom foer behandlingssystem av en bredskaermtelevisionssignal med foerbaettrad upploesning.
DE3466155D1 (en) Video signal generating apparatus
DK0775419T3 (da) Fremgangsmåde og apparat til maskering af et videosignal med fuld netværkstransmission og optageevne
AU511451B2 (en) Apparatus for decoding scrambled television and similar transmission
ATE147918T1 (de) Videosignal-verwürfelungs- und entwürfelungsvorrichtung
DE3485586D1 (de) Videochiffrierungssystem.
ES2016186A6 (es) Aparato para combinar y separar componentes constituyentes de una senal de video.
JPS5693251A (en) Method and device for correcting raster of color television picture tube
DK126183D0 (da) Fremgangsmade og apparat til frembringelse af et rumligt virkende skaermbillede pa en fjernsynsmodtager
JPS5636280A (en) Video signal cipher processing system
HK1008413A1 (en) Method and apparatus for enhancing the security of a scrambled television signal
EP0140705A3 (en) Television scrambling and descrambling method and apparatus
DE3478380D1 (en) Apparatus for viewing scrambled or unscrambled tv signals
KR930702860A (ko) 텔레비젼 신호 엔코딩 장치
US3496286A (en) Two-camera color television system
DE68922080D1 (de) Verfahren zur Verwürfelung von PAL-, SECAM- und NTSC-FBAS-Signalen und Dekoder für Signale, die nach diesem Verfahren verwürfelt sind.
FR2575892B1 (fr) Perfectionnement aux dispositifs permettant de regarder une image de television de haute qualite et stereoscopique
JPS62104285A (ja) 映像スクランブル伝送装置
DE3465233D1 (en) Method of scrambling and descrambling a television signal, and descrambling apparatus therefor
AU488716B2 (en) METHOD OF POSITIONING LINE SCANNING RASTERS ina colour Television camera and devices suitable FOR CARRYING OUT THIS METHOD
AU7769575A (en) METHOD OF POSITIONING LINE SCANNING RASTERS ina colour Television camera and devices suitable FOR CARRYING OUT THIS METHOD
DE3070139D1 (en) Method of and apparatus for coding and decoding pal colour television signals
JPS5411623A (en) Synchronizing method of facsimile video signal
NO834158L (no) Scrambling og descrambling av televisjonssignaler for abonnent-tv

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee