DK158433C - Fremgangsmaade og anlaeg til sikret udsendelse og modtagelse af videoinformation, isaer til fjernsyn - Google Patents

Fremgangsmaade og anlaeg til sikret udsendelse og modtagelse af videoinformation, isaer til fjernsyn

Info

Publication number
DK158433C
DK158433C DK469581A DK469581A DK158433C DK 158433 C DK158433 C DK 158433C DK 469581 A DK469581 A DK 469581A DK 469581 A DK469581 A DK 469581A DK 158433 C DK158433 C DK 158433C
Authority
DK
Denmark
Prior art keywords
receipt
television
procedures
places
video information
Prior art date
Application number
DK469581A
Other languages
Danish (da)
English (en)
Other versions
DK469581A (da
DK158433B (da
Inventor
Robert S Block
John R Martin
Original Assignee
Telease Inc
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 Telease Inc filed Critical Telease Inc
Publication of DK469581A publication Critical patent/DK469581A/da
Publication of DK158433B publication Critical patent/DK158433B/da
Application granted granted Critical
Publication of DK158433C publication Critical patent/DK158433C/da

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)
  • Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DK469581A 1980-02-25 1981-10-23 Fremgangsmaade og anlaeg til sikret udsendelse og modtagelse af videoinformation, isaer til fjernsyn DK158433C (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12465680A 1980-02-25 1980-02-25
US12465680 1980-02-25
US8100227 1981-02-25
PCT/US1981/000227 WO1981002499A1 (en) 1980-02-25 1981-02-25 Method and system for secure transmission and reception of video information particularly for television

Publications (3)

Publication Number Publication Date
DK469581A DK469581A (da) 1981-10-23
DK158433B DK158433B (da) 1990-05-14
DK158433C true DK158433C (da) 1990-10-22

Family

ID=22416098

Family Applications (1)

Application Number Title Priority Date Filing Date
DK469581A DK158433C (da) 1980-02-25 1981-10-23 Fremgangsmaade og anlaeg til sikret udsendelse og modtagelse af videoinformation, isaer til fjernsyn

Country Status (9)

Country Link
EP (1) EP0046798B1 (ja)
JP (1) JPH065955B2 (ja)
AU (1) AU544397B2 (ja)
BR (1) BR8107088A (ja)
CA (1) CA1182555A (ja)
DE (1) DE3176785D1 (ja)
DK (1) DK158433C (ja)
GB (1) GB2086181B (ja)
WO (1) WO1981002499A1 (ja)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2105953B (en) * 1981-08-14 1985-05-22 Sony Corp Methods of and apparatus for coding television signals
JPS59500694A (ja) * 1982-04-23 1984-04-19 インデペンデント・ブロ−ドキヤステイング・オ−ソリテイ 信号を確実に伝送するための信号コ−ド化装置
CA1338158C (en) * 1982-07-15 1996-03-12 John D. Lowry Encryption and decryption (scrambling and unscrambling) of video signals
FR2607341A1 (fr) * 1983-03-21 1988-05-27 Telediffusion Fse Procede d'embrouillage et de desembrouillage pour images de television
FR2543386B1 (fr) * 1983-03-21 1987-03-20 Telediffusion Fse Procedes et dispositifs d'embrouillage et de desembrouillage pour images de television
JP2531612B2 (ja) * 1983-03-28 1996-09-04 インデペンデント・ブロ−ドキヤステイング・オ−ソリテイ テレビジョン信号の暗号化方法およびその方法を用いた受信装置
EP0123422A3 (en) * 1983-03-28 1985-04-03 Plessey Overseas Limited Apparatus for scrambling and unscrambling signals
DE3479952D1 (en) * 1983-04-21 1989-11-02 Gen Instrument Corp Scrambling system for television video signal
US4563702A (en) * 1983-05-27 1986-01-07 M/A-Com Linkabit, Inc. Video signal scrambling and descrambling systems
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
CA1284211C (en) * 1985-04-29 1991-05-14 Terrence Henry Pocock Cable television system selectively distributing pre-recorder video and audio messages
FR2584556B1 (fr) * 1985-07-02 1987-09-18 France Etat Procede d'embrouillage et de desembrouillage d'images de television
US4736420A (en) * 1986-09-19 1988-04-05 M/A-Com Government Systems, Inc. Video scrambling by segmenting video information lines
DE3832611C2 (de) * 1987-09-30 1998-05-14 Thomson Brandt Gmbh Verschachtelung eines Videosignals
FR2626131B1 (fr) * 1988-01-14 1990-06-22 Telediffusion Fse Procede et dispositif de permutation de lignes de television par bloc
FR2631192A1 (fr) * 1988-05-06 1989-11-10 Europ Rech Electr Lab Procede d'embrouillage d'images de television
MY108367A (en) * 1991-09-30 1996-09-30 Thomson Consumer Electronics S A Method and apparatus for secure transmisson of video signals.
US5384497A (en) * 1992-11-04 1995-01-24 At&T Corp. Low-skew signal routing in a programmable array
US10110233B2 (en) 2016-06-23 2018-10-23 Altera Corporation Methods for specifying processor architectures for programmable integrated circuits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972008A (en) * 1956-04-23 1961-02-14 Paramount Pictures Corp Coding methods and system
JPS5754986B2 (ja) * 1974-12-30 1982-11-20
CA1097794A (en) * 1975-08-08 1981-03-17 Harold B. Shutterly Secure television transmission system

Also Published As

Publication number Publication date
EP0046798A1 (en) 1982-03-10
GB2086181A (en) 1982-05-06
DE3176785D1 (en) 1988-07-14
DK469581A (da) 1981-10-23
JPH065955B2 (ja) 1994-01-19
AU7039581A (en) 1981-09-11
JPS57500402A (ja) 1982-03-04
CA1182555A (en) 1985-02-12
EP0046798A4 (en) 1985-07-30
AU544397B2 (en) 1985-05-23
WO1981002499A1 (en) 1981-09-03
EP0046798B1 (en) 1988-06-08
BR8107088A (pt) 1982-01-05
GB2086181B (en) 1985-04-17
DK158433B (da) 1990-05-14

Similar Documents

Publication Publication Date Title
DK158433C (da) Fremgangsmaade og anlaeg til sikret udsendelse og modtagelse af videoinformation, isaer til fjernsyn
DK219082A (da) Fremgangsmaade og anlaeg til transmission af multiple signaler,isaer til fjernsyn
JPS5650658A (en) Audio* picture and data concentration type communication transmission and exchange system
DK166246C (da) Anordning til udsendelse af og genskabelse af udsendte audiosignaler
DK151744C (da) Fremgangsmaade til behandling af et informationssignal og indretninger til udoevelse af fremgangsmaaden
DK84679A (da) Fremgangsmaade og apparat til overfoering af information
HK76186A (en) Method of and system for the transmission of data packets
JPS5656081A (en) Digital video signal modulating and demodulating device
DK37283A (da) Komposition og fremgangsmaade til reformning af carbonhydrider
DK155480A (da) Fremgangsmaade og anordning til behandling af videosignaler
IT1142368B (it) Metodo ed apparecchio per televisione stereoscopica su larghezza di banda standard
DK151674C (da) Fremgangsmaade og kredsloeb til formidling af data mellem dataterminaler
DK549482A (da) Apparat til optagelse og/eller gengivelse af video- og lydsignaler
GB2064167B (en) Video track transfer system and method
KR840006365U (ko) 비디오 신호 및 디지탈 신호의 재생장치
DK147610C (da) Fremgangsmaade til seriel datatransmission og videoteksttypedatatransmissionssystem til udoevelse af fremgangsmaaden
DK435684A (da) Fremgangsmaade til overfoering, navnlig til indspilning og afspilning af fjernsynssignaler
DE3381815D1 (de) Videoplatten-aufzeichnungs- und wiedergabesystem.
DE3580353D1 (de) Interaktives video- und audioreglersystem.
DE3484582D1 (de) Strahlungsbildaufzeichnungs- und wiedergabesystem.
DK283883D0 (da) Fremgangsmade, reagenssaet og apparat til pavisning af yverbetaendelse
DK163089C (da) Fremgangsmaade til overfoering og modtagelse af digitale informationssignaler
ES496029A0 (es) Perfeccionamientos en aparatos de reproduccion de videodis- cos
DK27282A (da) Heparinnetvaerk og fremgangsmaade til fremstilling deraf
NO812240L (no) Fremgangsmaate og innretning for synkronisering av flere gyroskop.

Legal Events

Date Code Title Description
PBP Patent lapsed