BR8107088A - Processo e sistema para a transmissao e recepcao seguras de informacao de video particularmente para televisao - Google Patents

Processo e sistema para a transmissao e recepcao seguras de informacao de video particularmente para televisao

Info

Publication number
BR8107088A
BR8107088A BR8107088A BR8107088A BR8107088A BR 8107088 A BR8107088 A BR 8107088A BR 8107088 A BR8107088 A BR 8107088A BR 8107088 A BR8107088 A BR 8107088A BR 8107088 A BR8107088 A BR 8107088A
Authority
BR
Brazil
Prior art keywords
television
reception
video information
secure transmission
information particularly
Prior art date
Application number
BR8107088A
Other languages
English (en)
Inventor
R Block
J 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 BR8107088A publication Critical patent/BR8107088A/pt

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)
BR8107088A 1980-02-25 1981-02-25 Processo e sistema para a transmissao e recepcao seguras de informacao de video particularmente para televisao BR8107088A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12465680A 1980-02-25 1980-02-25
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 (1)

Publication Number Publication Date
BR8107088A true BR8107088A (pt) 1982-01-05

Family

ID=22416098

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8107088A BR8107088A (pt) 1980-02-25 1981-02-25 Processo e sistema para a transmissao e recepcao seguras de informacao de video particularmente para televisao

Country Status (9)

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

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
EP0105897A1 (en) * 1982-04-23 1984-04-25 Independent Broadcasting Authority Signal coding for secure transmission
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
EP0123422A3 (en) * 1983-03-28 1985-04-03 Plessey Overseas Limited Apparatus for scrambling and unscrambling signals
WO1984004013A1 (en) * 1983-03-28 1984-10-11 Indep Broadcasting Authority Encryption of television 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 (pt) * 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
DK469581A (da) 1981-10-23
JPS57500402A (pt) 1982-03-04
AU7039581A (en) 1981-09-11
JPH065955B2 (ja) 1994-01-19
WO1981002499A1 (en) 1981-09-03
DK158433C (da) 1990-10-22
CA1182555A (en) 1985-02-12
GB2086181B (en) 1985-04-17
AU544397B2 (en) 1985-05-23
GB2086181A (en) 1982-05-06
DE3176785D1 (en) 1988-07-14
EP0046798A4 (en) 1985-07-30
EP0046798A1 (en) 1982-03-10
EP0046798B1 (en) 1988-06-08
DK158433B (da) 1990-05-14

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