WO2001054345A1 - Systemes de securite de transmission, visualisation, controle d'acces et commande d'utilisation de films, de donnees video, de programmes et de fichiers de donnees - Google Patents

Systemes de securite de transmission, visualisation, controle d'acces et commande d'utilisation de films, de donnees video, de programmes et de fichiers de donnees Download PDF

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Publication number
WO2001054345A1
WO2001054345A1 PCT/US2001/001776 US0101776W WO0154345A1 WO 2001054345 A1 WO2001054345 A1 WO 2001054345A1 US 0101776 W US0101776 W US 0101776W WO 0154345 A1 WO0154345 A1 WO 0154345A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
video
transmission
motion picture
portable storage
Prior art date
Application number
PCT/US2001/001776
Other languages
English (en)
Inventor
Farrell Newton
Gareth Williams
Charles E. Ii Moore
Christopher M. Nichols
Original Assignee
Plenar Corporation
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 Plenar Corporation filed Critical Plenar Corporation
Priority to AU2001230986A priority Critical patent/AU2001230986A1/en
Publication of WO2001054345A1 publication Critical patent/WO2001054345A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41415—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/109—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by using specially-adapted hardware at the client
    • 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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808—Management of client data
    • H04N21/25816—Management of client data involving client authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
    • 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
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • 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
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
    • 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
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Definitions

  • An object of this invention is to provide means for secure transmission of motion picture
  • a further object is to make it difficult to obtain an illicit copy by borrowing or stealing a print or the digital equivalent from a motion picture theater, or to make illicit
  • a yet further object is to control the playback of a video or motion picture recording.
  • a motion picture is downloaded or
  • our invention is both a security measure and a cost reduction. Note further that
  • a yet further object is to make it difficult to illicitly obtain a viewing-quality copy by videotaping or filming the movie screen in the theater.
  • a yet further object is to make it difficult to produce illicit copies of motion pictures
  • Star Wars Episode I showed up on illicit videotapes in Hong Kong as soon as it was released.
  • a yet further object is to support pay-per-view cable TV services or premium channels or
  • portable storage media e.g. as described in our previous patent, U.S.
  • the motion picture or video transmission e.g. a single CD-ROM for multiple motion
  • a yet further object in other implementations is to use a
  • object is to control the playback of an audio recording or the use of a computer program; e.g. again for per-use rental.
  • Yet further objects are making it difficult to obtain or make illicit copies of said file, and controlling the usage of said file.
  • video will include motion pictures and television
  • part A one part to be transmitted, and a second part (“part B") contained on one or
  • a portable storage medium in the possession of the theater operator or user.
  • black and white copy would show the plot and action of the movie; only the entertainment value is lost with the color. Since the moviegoer is buying entertainment, protecting the entertainment value is sufficient.
  • PSM portable storage medium
  • CD-ROM disks DVD-disks
  • memory cards floppy disks
  • portable hard disk drives magnetic recording tape
  • the transmission or both may optionally be encrypted and/or scrambled, e.g. by any of
  • portable storage medium can only be decoded by the playback unit to which it is being
  • the encryption or scrambling may be applied to the transmission and/or the data stored on the portable storage medium; or it may be applied to the video
  • the video information before it is divided between the two.
  • the video information In the latter case, the video information
  • portable storage medium may optionally comprise one or more keys
  • the decryption hardware may optionally further comprise decryption hardware and may perform part or all of the decryption function. Accordingly, the decryption function may be performed by the
  • portable electronic device may implement any of the authentication functions recited in our previous patent or application.
  • portable electronic devices of this patent may further comprise
  • video information e.g. motion picture
  • video information e.g. motion picture
  • timing means e.g to allow access to the information to decode
  • Said timing means may also be used to enable the unit to
  • the portable electronic device e.g. "cartridge” may
  • authentication & authorization e.g. from the transmission. For example, it
  • the portable electronic device programming can refuse to
  • device e.g. "cartridge”
  • carrier may optionally further comprise means to input and/or alter said
  • timing information either at the central location (before being sent to the user and/or
  • the chrominance information for each frame must be applied to the
  • luminance information for the same frame. Similarly, the information must also be
  • start typically comprising a given
  • a block could be the digital information for
  • beginning-of-frame / end-of-frame bit sequences function as synchronizing means.
  • Another way is to provide periodic resynchronizing means.
  • One such technique is to
  • timing signals include conventionalized synchronizing signals or timing signals, e.g. a digital bit or
  • analogous means can be used to synchronize either datastream with the corresponding
  • part A to be transmitted
  • part B contained on one or more portable storage media.
  • one part or datastream may contain the data for some blocks within each frame
  • one part or datastream may contain the data for blocks of the picture or blocks
  • the second part may contain the
  • part A may contain some bits, while “part B” contains the others.
  • part A can be any bitstream or datafile computed from the original bitstream
  • part B being another bitstream or datafile computed from the original and containing some of the information
  • the audio information can be similarly divided between a transmission
  • portable storage medium e.g. to minimize the bandwidth of the required transmission.
  • part A is
  • portable storage medium might optionally be unique to each user or theater or class
  • each transmission is unique to each user or theater or class thereof.
  • the contents of the portable storage medium might be the same for each
  • the information for each showing is preferably erased after that showing or during the course of said showing.
  • portable storage media and/or transmissions may either be concurrent with or prior to the viewing of said video.
  • transmissions may be concurrent or sequential or both. For example, repeated
  • transmissions to the theater's location may be required during a given showing of a
  • one transmission could be made at the beginning of the month or when a movie
  • This transmission contains the "part B" of the information.
  • the "part A” can be any one of the projector.
  • the playback units may also optionally be connected to a local network
  • authorization unit might alternatively be software residing on an ordinary computer.
  • one of said two or more transmissions may optionally be a low-bandwidth
  • authorization signal e.g. to enable the playback unit or decoding functions or combining
  • the information can be divided in any way between the portable storage
  • said algorithm is implemented in a portable electronic
  • said portable electronic device requires an authorization code
  • authorization codes coming from a central server or facility and/or from a human operator or user.
  • authorization codes can also be used to input a playback schedule.
  • a portable storage medium e.g. a CD-ROM or DVD disk
  • a portable storage medium e.g. a CD-ROM or DVD disk
  • the playback unit or processor or computer or local server can optionally be
  • a portable electronic device can be
  • medium may comprise programming to do the same, said programming being executed
  • the playback unit or processor or computer or local server typically by the playback unit or processor or computer or local server.
  • the information is read out as the transmission is received (e.g.
  • the information on the PED or PSM may optionally be erased as it is read out.
  • a sealed cartridge e.g. with electronic means of detecting attempts to open same
  • a sealed playback unit e.g. projector
  • auxiliary processor which may optionally be external
  • such functions may optionally be implemented a set-top box, or in
  • TV program information or other information of interest to the viewer
  • decryption may optionally take place in real time. If a one ⁇
  • a low-bandwidth link such as a telephone connection, could be used to enable a viewing of a movie.
  • decryption information for any video encryption technique may be any video encryption technique.
  • decryption means may optionally be implemented in a sealed portable electronic device.
  • the portable electronic device may require an authorization message from a
  • Yet another technique is to scramble enough of the information to render the video
  • Yet another technique is to add enough noise to render the video unwatchable or to
  • noise or pattern can then be contained in a portable storage medium of modest capacity or
  • noise or pattern may optionally be stored on the same storage medium as the rest of the video, but in encrypted form. In this case, the encryption key would be obtained
  • VHS videotapes are distributed and sold as VHS videotapes. However, the same techniques can defeat
  • One technique is to use a different frame rate than conventional video or TV cameras. This which will produce a jittery and unusable copy, especially if the frame rate is only
  • any visually perceptible flicker or instability rate may be achieved; note also that the rate can be varied.
  • Moire pattern e.g. between the almost-horizontal scan lines on a motion picture screen
  • the scan angle can also be
  • illumination source e.g. a conventional projector lamp or reasonable equivalent
  • This projection method allows us to use a variety of novel techniques in which the illumination source is varied, one purpose of which can be to create a projection that
  • the video signal can be adjusted (i.e., pre-processed) to compensate for any otherwise visible effects of varying the
  • illumination source Another purpose of varying the illumination source can be to
  • the illumination pattern or sequence varies with time (e.g. at a few seconds).
  • the theater can be compensated for by pre-processing and changing the video signal to the transmission projection unit.
  • the frame one or more times during each frame time.
  • the scan pattern, orientation, and rate can be varied.
  • the rate or range can be varied.
  • each illumination color e.g. the 3 primary colors
  • the video signal on the parts of the frame that are not illuminated at any given moment can be
  • a video signal that produces these unorthodox scans or that provides any required compensation for any residual variation visible to the movie viewer from the varying illumination techniques or which is invisible when used with said varying illumination techniques is a signal that cannot be played back on conventional video
  • part A is the video information, transmitted in the same order as the scrambled scan
  • part B is the scan order, or vice-versa.
  • part A can be a video signal that is compatible with or which cancels the variation due to a varying illumination
  • part B can be a video signal that is compatible with or which cancels the variation due to a varying illumination
  • B" can be the signal for that varying illumination.
  • all of these varying illumination techniques can be applied to the projection of conventional movie films. For example, we can, as previously recited, scan a bar or band of illumination across the frame one or more times during each frame time, or raster scan one or more spots of illumination over the frame area one or more times during each frame time. Similarly, as previously recited, we can vary or scan each illumination color over different parts of the frame, or, equivalently, vary the color balance of the illumination of different parts of the frame during the frame time. So long as the average illumination, integrated over each frame time, is uniform and white (no excess of any color), the people watching the movie on the screen will see no difference. However, as previously recited, an illicit videotape of the projected movie would be annoying and virtually unwatchable.
  • any residual variation visible to the theatergoer can be canceled or compensated by changing the movie film, e.g. by introducing an opposite or canceling
  • the illumination may contain an excess of red in the center of the screen, with the
  • these means can be varied from frame to frame; the required variation in the illumination source (to match the color distortions over the different frames in the movie film) may be supplied via a transmission during the showing of the movie, or via a portable storage medium or portable electronic device, or stored in the projection unit, an auxiliary unit, a local server, or any of the means previously recited for the electronic movies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Graphics (AREA)
  • Technology Law (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

L'invention concerne un dispositif permettant de transmettre en toute sécurité des données cinématographiques, des données de programmation vidéo, d'autres données vidéo, ainsi que des images fixes. Grâce à l'invention, il est difficile d'obtenir une copie illicite de données par emprunt ou vol d'une impression ou de l'équivalent numérique dans un cinéma, ou de faire des copies illicites de celles-ci. La transmission des données est chiffrée et électroniquement distribuée au destinataire. Une clé de déchiffrement est stockée sur un support de stockage physique, distribuée au destinataire, puis utilisée pour déchiffrer la transmission des données. Dans un mode de réalisation, un film est transmis au cinéma via une ligne de communication chaque fois qu'il va être présenté, à l'heure à laquelle il va être présenté, afin qu'une copie ne soit jamais entreposée dans le cinéma. L'invention permet également d'empêcher la production de copies illicites de matériel protégé par les droits d'auteur capturé par enregistrement vidéo ou en filmant un écran de cinéma. Des variations reproduites par des dispositifs de capture d'image sont introduites dans une image mobile, prévenant ainsi la génération d'une copie de qualité de visualisation par de tels dispositifs.
PCT/US2001/001776 2000-01-18 2001-01-18 Systemes de securite de transmission, visualisation, controle d'acces et commande d'utilisation de films, de donnees video, de programmes et de fichiers de donnees WO2001054345A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001230986A AU2001230986A1 (en) 2000-01-18 2001-01-18 Security systems for motion picture, video, program, and datafile transmission, viewing, access control and usage control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17659400P 2000-01-18 2000-01-18
US60/176,594 2000-01-18

Publications (1)

Publication Number Publication Date
WO2001054345A1 true WO2001054345A1 (fr) 2001-07-26

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PCT/US2001/001776 WO2001054345A1 (fr) 2000-01-18 2001-01-18 Systemes de securite de transmission, visualisation, controle d'acces et commande d'utilisation de films, de donnees video, de programmes et de fichiers de donnees

Country Status (2)

Country Link
AU (1) AU2001230986A1 (fr)
WO (1) WO2001054345A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2376104A (en) * 2001-04-26 2002-12-04 Kaydara Inc Mixed-media data encoding for controlling access to animation data
US7254235B2 (en) 2001-04-26 2007-08-07 Autodesk, Inc. Receiving mixed-media data
US8041034B2 (en) 2004-09-13 2011-10-18 Samsung Electronics Co., Ltd. Multi-streaming apparatus and multi-streaming method using temporary storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736368A (en) * 1972-01-28 1973-05-29 Theatre Vision Inc Technique for encoding and decoding t.v. transmissions by means of a coded electronic ticket
US5426701A (en) * 1994-02-28 1995-06-20 General Instrument Corporation Of Delaware Cable television converter box with a smart card connector underneath
US5461674A (en) * 1992-05-22 1995-10-24 Zenith Electronics Corp. Method and apparatus for controlling playback of recorded HDTV signals
US5680454A (en) * 1995-08-04 1997-10-21 Hughes Electronics Method and system for anti-piracy using frame rate dithering

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736368A (en) * 1972-01-28 1973-05-29 Theatre Vision Inc Technique for encoding and decoding t.v. transmissions by means of a coded electronic ticket
US5461674A (en) * 1992-05-22 1995-10-24 Zenith Electronics Corp. Method and apparatus for controlling playback of recorded HDTV signals
US5426701A (en) * 1994-02-28 1995-06-20 General Instrument Corporation Of Delaware Cable television converter box with a smart card connector underneath
US5680454A (en) * 1995-08-04 1997-10-21 Hughes Electronics Method and system for anti-piracy using frame rate dithering

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2376104A (en) * 2001-04-26 2002-12-04 Kaydara Inc Mixed-media data encoding for controlling access to animation data
GB2376104B (en) * 2001-04-26 2004-08-11 Kaydara Inc Mixed-media data encoding
US7254235B2 (en) 2001-04-26 2007-08-07 Autodesk, Inc. Receiving mixed-media data
US8041034B2 (en) 2004-09-13 2011-10-18 Samsung Electronics Co., Ltd. Multi-streaming apparatus and multi-streaming method using temporary storage medium

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