WO2000074366A3 - Systemes et procedes utilises dans la prevention du piratage d'images cinematographiques par un camescope - Google Patents

Systemes et procedes utilises dans la prevention du piratage d'images cinematographiques par un camescope Download PDF

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Publication number
WO2000074366A3
WO2000074366A3 PCT/US2000/014777 US0014777W WO0074366A3 WO 2000074366 A3 WO2000074366 A3 WO 2000074366A3 US 0014777 W US0014777 W US 0014777W WO 0074366 A3 WO0074366 A3 WO 0074366A3
Authority
WO
WIPO (PCT)
Prior art keywords
motion picture
methods
preventing
systems
camcorder
Prior art date
Application number
PCT/US2000/014777
Other languages
English (en)
Other versions
WO2000074366A2 (fr
Inventor
Donald C Mead
Original Assignee
Digital Electronic Cinema Inc
Donald C Mead
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 Digital Electronic Cinema Inc, Donald C Mead filed Critical Digital Electronic Cinema Inc
Priority to AU54481/00A priority Critical patent/AU5448100A/en
Publication of WO2000074366A2 publication Critical patent/WO2000074366A2/fr
Publication of WO2000074366A3 publication Critical patent/WO2000074366A3/fr

Links

Classifications

    • 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
    • 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
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91385—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video frame number being modulated
    • 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
    • H04N2005/91392—Television signal processing therefor for scrambling ; for copy protection using means for preventing making copies of projected video images

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

L'invention porte sur de nouveaux systèmes et procédés utilisés dans la prévention du piratage d'images cinématographiques par enregistrement d'images, au moment où celles-ci passent sur un écran de cinéma, à l'aide d'un caméscope utilisé comme magnétoscope. L'invention porte sur deux systèmes et procédés alternatifs d'antipiratage. Le premier procédé consiste à faire varier la fréquence des images cinématographiques affichées de manière aléatoire, ce qui empêche le caméscope de synchroniser sa vitesse de trames interne sur celle de l'image cinématographique affichée. Le second procédé consiste à transmettre une énergie pulsée par fréquences à des fréquences de lumière visible telle que la lumière infrarouge de sorte que la puissance ou la fréquence transmise soit suffisante pour dégrader la qualité de l'image enregistrée par le magnétoscope. La qualité des images enregistrées est ainsi considérablement dégradée. Ces deux réalisations peuvent être utilisées seules ou en combinaison.
PCT/US2000/014777 1999-05-27 2000-05-26 Systemes et procedes utilises dans la prevention du piratage d'images cinematographiques par un camescope WO2000074366A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54481/00A AU5448100A (en) 1999-05-27 2000-05-26 Systems and methods for preventing camcorder piracy of motion picture images

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13662599P 1999-05-27 1999-05-27
US60/136,625 1999-05-27

Publications (2)

Publication Number Publication Date
WO2000074366A2 WO2000074366A2 (fr) 2000-12-07
WO2000074366A3 true WO2000074366A3 (fr) 2001-05-03

Family

ID=22473640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/014777 WO2000074366A2 (fr) 1999-05-27 2000-05-26 Systemes et procedes utilises dans la prevention du piratage d'images cinematographiques par un camescope

Country Status (2)

Country Link
AU (1) AU5448100A (fr)
WO (1) WO2000074366A2 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7634089B1 (en) 1999-10-29 2009-12-15 Sarnoff Corporation Cinema anti-piracy measures
US7324646B1 (en) * 1999-10-29 2008-01-29 Sarnoff Corporation Method and apparatus for film anti-piracy
AU2001234600A1 (en) * 2000-01-28 2001-08-07 Sarnoff Corporation Cinema anti-piracy measures
US7043019B2 (en) * 2001-02-28 2006-05-09 Eastman Kodak Company Copy protection for digital motion picture image data
JP3468228B2 (ja) 2001-05-16 2003-11-17 ソニー株式会社 撮像妨害方法及びシステム
JP3518528B2 (ja) 2001-08-10 2004-04-12 ソニー株式会社 撮像妨害方法及びシステム
JP3674568B2 (ja) * 2001-10-02 2005-07-20 ソニー株式会社 強度変調方法及びシステム並びに光量変調装置
GB0211612D0 (en) * 2002-05-21 2002-07-03 Eastman Kodak Co A method and system for the prevention of copyright piracy
US7332706B2 (en) 2002-11-14 2008-02-19 Auctnyc 19 Llc Detecting and thwarting imaging systems at theatrical performances
US7020383B2 (en) 2002-11-14 2006-03-28 Light Elliott D Detecting and thwarting imaging systems at theatrical performances
US6977366B2 (en) * 2002-11-14 2005-12-20 Light Elliott D Detecting and thwarting imaging systems at theatrical performances
US7326911B2 (en) 2002-11-14 2008-02-05 Auctnyc 19 Llc Detecting and thwarting content signals originating from theatrical performances
US6861640B2 (en) 2002-11-14 2005-03-01 Elliott D. Light Detecting and thwarting imaging systems at theatrical performances
US7221759B2 (en) * 2003-03-27 2007-05-22 Eastman Kodak Company Projector with enhanced security camcorder defeat
DE102004023800A1 (de) * 2004-05-05 2005-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Markierungsvorrichtung zum Versehen von optischen Informationen mit einer Marke
WO2006049616A1 (fr) 2004-11-01 2006-05-11 Thomson Licensing Projection de contenu anti-piratage faisant appel a une frequence d'images accrue
US7907248B2 (en) 2005-08-22 2011-03-15 Nds Limited Movie copy protection
WO2011021111A1 (fr) * 2009-08-20 2011-02-24 Nds Limited Procédé et système empêchant la reconnaissance optique de caractères d'un texte affiché
WO2013101021A1 (fr) * 2011-12-29 2013-07-04 Intel Corporation Modulation de rétro-éclairage d'affichage
RU2015125551A (ru) 2012-11-27 2017-01-11 Конинклейке Филипс Н.В. Использование окружающего света для защиты от копирования видеоконтента, отображаемого на экране
US9140444B2 (en) * 2013-08-15 2015-09-22 Medibotics, LLC Wearable device for disrupting unwelcome photography
US11533450B2 (en) 2017-09-25 2022-12-20 Comcast Cable Communications, Llc Anti-piracy video transmission and display
US10992900B1 (en) * 2020-04-09 2021-04-27 Goldman Sachs & Co. LLC Oscillating video refresh

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364047A1 (fr) * 1988-10-11 1990-04-18 Copyguard Enterprises S.A. Méthode pour empêcher l'enregistrement non autorisé sur bandes de programmes vidéo
US5680454A (en) * 1995-08-04 1997-10-21 Hughes Electronics Method and system for anti-piracy using frame rate dithering
US5757910A (en) * 1993-04-06 1998-05-26 Goldstar Co., Ltd. Apparatus for preventing illegal copying of a digital broadcasting signal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364047A1 (fr) * 1988-10-11 1990-04-18 Copyguard Enterprises S.A. Méthode pour empêcher l'enregistrement non autorisé sur bandes de programmes vidéo
US5757910A (en) * 1993-04-06 1998-05-26 Goldstar Co., Ltd. Apparatus for preventing illegal copying of a digital broadcasting signal
US5680454A (en) * 1995-08-04 1997-10-21 Hughes Electronics Method and system for anti-piracy using frame rate dithering
EP0851678A1 (fr) * 1995-08-04 1998-07-01 HE HOLDINGS, INC. dba HUGHES ELECTRONICS Système et procédé pour éviter la copie illégale, en utilisant des variations de vitesse de trame

Also Published As

Publication number Publication date
AU5448100A (en) 2000-12-18
WO2000074366A2 (fr) 2000-12-07

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