DK482984D0 - DEVICE FOR THE PROTECTION OF MAGNETIC TAPES OR OTHER RECORDING MEDIA OR TELEVISION OR RADIO TRANSMISSIONS AGAINST UNAUTHORIZED PLAYBACK AND / OR REPLACEMENT - Google Patents

DEVICE FOR THE PROTECTION OF MAGNETIC TAPES OR OTHER RECORDING MEDIA OR TELEVISION OR RADIO TRANSMISSIONS AGAINST UNAUTHORIZED PLAYBACK AND / OR REPLACEMENT

Info

Publication number
DK482984D0
DK482984D0 DK482984A DK482984A DK482984D0 DK 482984 D0 DK482984 D0 DK 482984D0 DK 482984 A DK482984 A DK 482984A DK 482984 A DK482984 A DK 482984A DK 482984 D0 DK482984 D0 DK 482984D0
Authority
DK
Denmark
Prior art keywords
television
replacement
protection
recording media
magnetic tapes
Prior art date
Application number
DK482984A
Other languages
Danish (da)
Other versions
DK482984A (en
Inventor
Jacques Pierre Picard
Claude Alain Daguillon
Original Assignee
Sisex Soc Int Servic Export
Sep Spec Elect Physiques
Rim Rech Integrees Marketing
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 Sisex Soc Int Servic Export, Sep Spec Elect Physiques, Rim Rech Integrees Marketing filed Critical Sisex Soc Int Servic Export
Publication of DK482984D0 publication Critical patent/DK482984D0/en
Publication of DK482984A publication Critical patent/DK482984A/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
    • G11B20/00688—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that a usable copy of recorded data can be made on another medium
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
    • G11B20/00695—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that data are read from the recording medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91321—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy protection control signal, e.g. a record inhibit signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
DK482984A 1983-02-09 1984-10-09 DEVICE FOR THE PROTECTION OF MAGNETIC TAPES OR OTHER RECORDING MEDIA OR TELEVISION OR RADIO TRANSMISSIONS AGAINST UNAUTHORIZED PLAYBACK AND / OR REPLACEMENT DK482984A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8302355A FR2540659A1 (en) 1983-02-09 1983-02-09 DEVICE FOR PROTECTING MAGNETIC TAPES, OR OTHER RECORDING MEDIA, OR TELEVISION OR RADIO TRANSMISSION AGAINST UNAUTHORIZED READING AND / OR REPRODUCTION
PCT/FR1984/000029 WO1984003166A1 (en) 1983-02-09 1984-02-09 Device for the protection of magnetic tapes, or other recording media, or television or radio broadcastings against an authorized reading and/or reproduction

Publications (2)

Publication Number Publication Date
DK482984D0 true DK482984D0 (en) 1984-10-09
DK482984A DK482984A (en) 1984-10-09

Family

ID=9285894

Family Applications (1)

Application Number Title Priority Date Filing Date
DK482984A DK482984A (en) 1983-02-09 1984-10-09 DEVICE FOR THE PROTECTION OF MAGNETIC TAPES OR OTHER RECORDING MEDIA OR TELEVISION OR RADIO TRANSMISSIONS AGAINST UNAUTHORIZED PLAYBACK AND / OR REPLACEMENT

Country Status (6)

Country Link
EP (1) EP0137801A1 (en)
JP (1) JPS60500835A (en)
BR (1) BR8405175A (en)
DK (1) DK482984A (en)
FR (1) FR2540659A1 (en)
WO (1) WO1984003166A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142765A (en) * 1983-07-04 1985-01-23 John William Hawkins Preventing unauthorised use of recorded information
WO1985002293A1 (en) * 1983-11-21 1985-05-23 Haute Securite Video Hsv S.A. Antipiracy device and method for cinematographic and video carriers
KR930008167B1 (en) * 1986-08-11 1993-08-26 매크로비젼 코포레이션 Method and apparatus for preventing the copying of a video program
US5371795A (en) * 1988-05-04 1994-12-06 Right Hemisphere Pty., Ltd. Automatic censorship of video programs
WO1989011199A1 (en) * 1988-05-04 1989-11-16 Vogel Peter S Automatic censorship of broadcast programmes
JPH0644755A (en) * 1992-07-24 1994-02-18 Sony Corp Method for transmitting video signal and recorder therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439113A (en) * 1963-11-15 1969-04-15 Teleglobe Pay Tv System Inc Subscription television communication system
US4185305A (en) * 1974-03-04 1980-01-22 Bell & Howell Company Video information recording and reproducing methods and apparatus
US4030128A (en) * 1974-11-21 1977-06-14 Bell & Howell Company Video record scrambling and unscrambling
AU5706180A (en) * 1979-04-11 1980-10-16 John Anthony Dimmers Video copying inhibitor
US4266243A (en) * 1979-04-25 1981-05-05 Westinghouse Electric Corp. Scrambling system for television sound signals
US4404603A (en) * 1980-05-27 1983-09-13 Warren Eugene D Apparatus and method for inspecting magnetic tape recorded material for alterations

Also Published As

Publication number Publication date
BR8405175A (en) 1985-02-12
EP0137801A1 (en) 1985-04-24
DK482984A (en) 1984-10-09
WO1984003166A1 (en) 1984-08-16
FR2540659A1 (en) 1984-08-10
JPS60500835A (en) 1985-05-30

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment