EP1590963A1 - Procede et dispositif pour la protection et la visualisation de flux video - Google Patents
Procede et dispositif pour la protection et la visualisation de flux videoInfo
- Publication number
- EP1590963A1 EP1590963A1 EP04708381A EP04708381A EP1590963A1 EP 1590963 A1 EP1590963 A1 EP 1590963A1 EP 04708381 A EP04708381 A EP 04708381A EP 04708381 A EP04708381 A EP 04708381A EP 1590963 A1 EP1590963 A1 EP 1590963A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- visual
- video stream
- original
- stream
- video streams
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000000007 visual effect Effects 0.000 claims abstract description 71
- 230000000295 complement effect Effects 0.000 abstract 2
- 238000012800 visualization Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005206 flow analysis Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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]
- H04N21/20—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
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
-
- 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
- H04N21/234345—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 the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
-
- 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
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
- H04N21/23892—Multiplex stream processing, e.g. multiplex stream encrypting involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
-
- 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
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
- H04N21/2541—Rights Management
-
- 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
- H04N21/25866—Management of end-user data
- H04N21/25883—Management of end-user data being end-user demographical data, e.g. age, family status or address
-
- 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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
-
- 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/4722—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting additional data associated with the content
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6581—Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8358—Generation of protective data, e.g. certificates involving watermark
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
- H04N7/165—Centralised control of user terminal ; Registering at central
Definitions
- the present invention relates to a method for distributing digital video streams, the aim of which is to prevent their illegal copying and / or distribution, by adding visual elements relating to each recipient of the original stream to said video streams.
- the addition of said personalized visual elements must allow the immediate identification of the person for whom the original film is intended, so that once out of its normal and authorized reading context, the playback of said video stream allows the authentication of the origin of the fraud, for example in the case of pirating or illicit distribution of copies of said audiovisual streams.
- the objective is to allow to trace the source of the fraud if it has taken place, and above all to have a dissuasive effect with a possible malicious person.
- the present invention makes it possible to identify immediately and without additional means a fraudulent copy, while leaving the video stream in clear when authorized viewing.
- the present invention is based on -ufî "'âyffteirfê'
- Client-Server whose objective is to identify the person who wants to view a video stream and to identify the playback device on which the viewing will be done. These identifications allow the user, at first, to recover, on his • personal or other reading device (sent physically by CD-ROM or DVD, or downloaded to a computer or a decoder
- (Set-Top-Box) a version of the video stream that he has chosen and adapted for his use.
- the Server will carry out the appropriate adaptation of the flow for said Client. For example, if the client reserves a film beforehand, the visual elements are introduced by the server and the modified stream is downloaded in the memoix or on the hard disk of the client's playback equipment. If the client wishes to watch a film immediately, the server introduces the appropriate visual elements as they go along and transmits the modified stream to the user in real time.
- the generation of the protected video stream adapted to the user is carried out by the Server.
- This one analyzes said original video stream in order to insert ⁇ e? 'additional visual adjustments that overlap with the video stream or replace the original content.
- the operation consists in analyzing said original video stream in order to designate the position (static or dynamic), the type and quantity of visual elements to be inserted as well as the number of insertions and their times of appearance at screen.
- One achievement is that said visual elements never appear in the same place when the protected stream is read, and that its content gives a maximum of information concerning the user authorized to see the film, such as his name, his address, his telephone coordinates, or any information likely to identify or authenticate it quickly. We will call all of this information below. relating to. customer. "Authentication information”.
- the server performs a flow analysis and changes a certain amount of information from the original flow with visual elements of the same format or compatible with the original information. Said original information is extracted from the flow, stored on the Server and replaced by visual elements relating to the user. This is called “marking” and produces the modified stream.
- the original information stored on the server is called “additional information”. Another variant is to superimpose the visual elements on the original film.
- the resulting modified stream is fully compatible with the standard or standard with which the original stream was generated.
- the original video stream is restored on equipment compatible with the invention and which will make a connection to the Server in order to recover the additional information which it keeps in real time, while the protected video stream is playing, and restitution of the original flow.
- This operation is called “markdown”. Without the operation of retrieving additional information in real time from the Server, only the flow marked with the visual elements is displayed and therefore all the information concerning the client is displayed for the duration of the display.
- a visualization of the original flow is only possible on the appropriate client equipment, any other form of visualization displaying said authentication information.
- anyone in possession of an unauthorized copy of said modified video stream also has all the personal authentication information to find the client who made the copy.
- the presence of visible visual elements could tempt malicious people to make them disappear.
- the visual elements being inserted into the video stream by replacing original parts, the malicious person could insert visible traces in order to hide the visual elements indicating the origin of the video stream.
- the position information of the visual elements in terms of choice of the modified frames, of position in the chosen frames, of shape and of size of the inserted visual element remain visible and can be found by an adequate processing.
- the marking being carried out by the server, all the information relating to the position, the shape, the size of the mark and the number of frames in which it is inserted are known by the server, thus uniquely identifying each user. Knowledge of this information is therefore sufficient to identify the malicious person who will have replaced the visual elements with visible "" tr ⁇ Ce ⁇ s.
- the presence of visible visual objects could also tempt several users of the same distribution group, having access to the same film, to compare the video streams marked differently that they have, and to make a new one of which all or part of the visual objects would have been removed, by combining the unmodified parts, or by replacing an image containing a visual object by an original image.
- the method according to the present invention ensures that the shape, the color, the size of the visual objects and the number of frames in which the visual object is inserted, are obtained for each user from a combinatorial method relating to a group of users and that the visual object contains at least one visual part of identical position for all the users of the group, representing an identifier of said group of users.
- the marking, transmission, markdown and display operations can be carried out sequentially in real time, during a single Client-Server connection.
- the invention relates to a method of distributing video streams to a plurality of recipients, comprising a marking step consisting in adding to said video stream at least one visual element, said marking step is applied to a original video stream common to all recipients, and is personalized for each recipient by adding a recipient-specific visual element allowing rapid visual identification of said recipient characterized in that said added visual element replaces part of the original video stream, which in the additional information on the multimedia server.
- said visual element is generated in two stages, a first stage consisting in processing marking data in any format so as to generate marking objects describing the visual element to be displayed, and a second stage consisting in adding said visual element in said video stream.
- the original flow is reconstituted on the client equipment from the modified flow and additional information sent by the server after authentication of the client and according to his rights, for reading and viewing without displaying the visual elements.
- said marking step makes it possible to include in the video stream all kinds of visual elements, the shape, position and color of which are determined.
- said marking step makes it possible to include in the video stream all kinds of visual elements, the shape, position and color of which are variable.
- the method includes a control step to authorize one or more private copies.
- the additional information is sent in real time.
- the position, the shape, the color, the size of the visual object inserted and the number of frames in which the visual object is inserted are unique and personalized for each user.
- the shape, size, visual objects and the number of frames in which the visual object is inserted are obtained from a combinatorial method relating to a group of users and the visual object contains at least one part having a position identical for all users of the group, representing an identifier of said group of users.
- the invention also relates to a system for implementing the video stream distribution method which consists of a marking module, comprising a module for generating visual elements personalized for each user, a module for inserting said elements. visuals in the original flow, thus producing a marked flow and additional information stored on the server, and a markdown module on which the original flow is reconstituted from the marked flow and additional information sent by the server.
- a marking module comprising a module for generating visual elements personalized for each user, a module for inserting said elements. visuals in the original flow, thus producing a marked flow and additional information stored on the server, and a markdown module on which the original flow is reconstituted from the marked flow and additional information sent by the server.
- a particular embodiment consists in distributing films encoded in accordance with the MPEG-2 standard.
- a Client (3) connects to the Server (2) to order a film (A)
- the latter chooses a film (A) from a list provided by the Server (2) and relating to the content of the film database ( 1).
- the latter transforms the film (A) chosen from the database (1) into a film (B) which contains, in visual and int ⁇ é form "fetôffiè 'the video stream, the personal information (24) of the customer.
- Said personal information of the Customer is constituted when he subscribes to the Service, in particular during a connection ( J), and are stored in a personal information database (24) at the Server level (2).
- An MPEG-2 digital video stream consists of sequences of images (or planes or frames), grouped into groups of "Group Of Pictures” (GOPs).
- An image can be of type I (Intra), P (Predicted), B (Bidirectional).
- the images I are the reference images, they are fully coded and are therefore of large size and do not contain any information on the movement.
- the I images are made up of slices, which themselves contain macroblocks and blocks.
- the transformation is carried out by the module (21) and consists, in this nonlimiting example, of changing a slice of an image I, and this every ten images I.
- the position of the slice (or slice) is chosen so random in the image, and this slice is replaced by a slice created so as to fit perfectly into the bit stream (A) while respecting the size of the image and the composition of the macroblocks.
- This operation of replacing slices is visually reflected by the appearance of a black band containing a text with white characters and which give the Customer's “Name - First name - Address - Telephone number”, established from personal data (D ) stored in the personal information base (24) of the server (2).
- Additional information (C) i.e. the content and position in the image of each slice removed, as well as the number of the image concerned 1 , • "sjnt: stored in a buffer (23) on the Server (2).
- the module (22) makes it possible to prepare the modified flow (B) for its transport to the Customer (3) by the means of transport (4).
- the film (B) is burned on a physical medium such as a disc and sent by post to the client (3).
- the user (3) can read it in his disc player (31) because the stream received is fully compatible with the MPEG-2 standard.
- Either the Client's disk drive (31) (3) has the module (311) necessary for the Client - Server connection (5), in which case during the reading of said disk, said module (311) included in the disk drive ( 31), via its connection to the Server (5), will recover, through the telecommunication network (5) the additional information (C) contained in the buffer (23) in order to compose before displaying on the screen of display (6) a flow (I) identical to the original flow (A), that is to say without the presence of the authentication information.
- Stream I is then conventionally decoded by the module (312) of the module (31), the module (312) being a standard MPEG-2 video player. At the end of this module
- Either the Customer's DVD player (31) (3) is not equipped with said system (311) or else if it does not succeed in identifying itself correctly by the connection (5), in which case, every ten images I , the white text strip on a black background appears on the screen (6), the stream (I) not having been transformed by the module (311).
- Any private copy of the disc will be viewable without authentication information, in the same way as the original disc, on any module authorized to a'E ⁇ 'xc r Fre'r ⁇ e , ⁇ according to the rights of the client.
- the visual elements are no longer the authentication information, but modified slices which contain text or any image paxties. For example, only a first user authorized to watch the film will be able to view it after the markdown performed by the module (311). In the case where the film is fraudulently copied by a second user who is not authorized, said second user views the film with the visual elements displayed, therefore the visual quality of the film is degraded. Any user authorized to view the film can view it on any device
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Computer Graphics (AREA)
- Human Computer Interaction (AREA)
- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Storage Device Security (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0301493A FR2851110B1 (fr) | 2003-02-07 | 2003-02-07 | Procede et dispositif pour la protection et la visualisation de flux video |
FR0301493 | 2003-02-07 | ||
PCT/FR2004/050045 WO2004073311A1 (fr) | 2003-02-07 | 2004-02-05 | Procede et dispositif pour la protection et la visualisation de flux video |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1590963A1 true EP1590963A1 (fr) | 2005-11-02 |
Family
ID=32731882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04708381A Withdrawn EP1590963A1 (fr) | 2003-02-07 | 2004-02-05 | Procede et dispositif pour la protection et la visualisation de flux video |
Country Status (4)
Country | Link |
---|---|
US (5) | US8311125B2 (fr) |
EP (1) | EP1590963A1 (fr) |
FR (1) | FR2851110B1 (fr) |
WO (1) | WO2004073311A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2851110B1 (fr) | 2003-02-07 | 2005-04-01 | Medialive | Procede et dispositif pour la protection et la visualisation de flux video |
FR2898458B1 (fr) * | 2006-03-10 | 2008-05-16 | Medialive | Procede pour la distribution securisee de sequences audiovisuelles, decodeur et systeme pour la mise en oeuvre de ce procede |
FR2898451B1 (fr) | 2006-03-13 | 2008-05-09 | Medialive | Procede et equipement de distribution de contenus audiovisuels numeriques securises par des solutions interoperables |
FR2909507B1 (fr) * | 2006-12-05 | 2009-05-22 | Medialive Sa | Procede et systeme de distribution securisee de donnees audiovisuelles par marquage transactionel |
US8707448B2 (en) | 2010-11-09 | 2014-04-22 | International Business Machines Corporation | Secure distribution of media data |
US8543623B2 (en) | 2010-11-09 | 2013-09-24 | International Business Machines Corporation | Secure distribution of media data |
CA2839236C (fr) * | 2011-07-01 | 2019-05-21 | Nagravision S.A. | Procede de lecture d'evenements pouvant etre repetes sur un lecteur multimedia |
WO2017063905A1 (fr) * | 2015-10-15 | 2017-04-20 | Nagravision S.A. | Système pour l'insertion d'un repère dans un contenu vidéo |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
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US6381367B1 (en) * | 1997-05-29 | 2002-04-30 | Macrovision Corp. | Method and apparatus for compression compatible video fingerprinting |
WO1999023657A1 (fr) * | 1997-10-31 | 1999-05-14 | Sony Corporation | Dispositif et procede de codage d'informations, dispositif et procede de decodage d'informations, et support d'enregistrement correspondant |
US6330672B1 (en) * | 1997-12-03 | 2001-12-11 | At&T Corp. | Method and apparatus for watermarking digital bitstreams |
US6285774B1 (en) * | 1998-06-08 | 2001-09-04 | Digital Video Express, L.P. | System and methodology for tracing to a source of unauthorized copying of prerecorded proprietary material, such as movies |
US6373530B1 (en) * | 1998-07-31 | 2002-04-16 | Sarnoff Corporation | Logo insertion based on constrained encoding |
US7336712B1 (en) * | 1998-09-02 | 2008-02-26 | Koninklijke Philips Electronics N.V. | Video signal transmission |
TW482987B (en) * | 2000-01-03 | 2002-04-11 | Amova Company | Automatic media editing system |
EP1134977A1 (fr) * | 2000-03-06 | 2001-09-19 | Irdeto Access B.V. | Procédé et système pour générer des copies d'un contenu brouillé avec des marquages uniques, et système de désembrouillage du contenu brouillé |
US7440584B2 (en) * | 2000-03-31 | 2008-10-21 | Intel Corporation | System and method for marking data and document distribution |
AU4436401A (en) * | 2000-04-05 | 2001-10-15 | Sony United Kingdom Limited | Identifying material |
JP3889919B2 (ja) * | 2000-08-31 | 2007-03-07 | 株式会社日立製作所 | 情報配信方法、情報受信方法、情報配信システム、情報配信装置、受信端末及び記憶媒体 |
EP1215907A3 (fr) * | 2000-12-07 | 2006-04-26 | Sony United Kingdom Limited | Filigranage de données et transmission de données filigranées |
US20020087976A1 (en) * | 2000-12-28 | 2002-07-04 | Kaplan Marc P. | System and method for distributing video with targeted advertising using switched communication networks |
US7047413B2 (en) * | 2001-04-23 | 2006-05-16 | Microsoft Corporation | Collusion-resistant watermarking and fingerprinting |
US7269622B2 (en) * | 2001-07-26 | 2007-09-11 | International Business Machines Corporation | Watermarking messaging sessions |
US7765567B2 (en) * | 2002-01-02 | 2010-07-27 | Sony Corporation | Content replacement by PID mapping |
US7349553B2 (en) * | 2002-04-29 | 2008-03-25 | The Boeing Company | Watermarks for secure distribution of digital data |
JP2005537731A (ja) * | 2002-08-30 | 2005-12-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | マルチメディアコンテンツ識別のためにフィンガープリントを埋込む方法 |
US7206409B2 (en) * | 2002-09-27 | 2007-04-17 | Technicolor, Inc. | Motion picture anti-piracy coding |
FR2851110B1 (fr) | 2003-02-07 | 2005-04-01 | Medialive | Procede et dispositif pour la protection et la visualisation de flux video |
WO2007012030A2 (fr) * | 2005-07-19 | 2007-01-25 | Verimatrix, Inc. | Marque cachee et robuste servant a identifier un support |
-
2003
- 2003-02-07 FR FR0301493A patent/FR2851110B1/fr not_active Expired - Lifetime
-
2004
- 2004-02-05 EP EP04708381A patent/EP1590963A1/fr not_active Withdrawn
- 2004-02-05 US US10/544,659 patent/US8311125B2/en active Active
- 2004-02-05 WO PCT/FR2004/050045 patent/WO2004073311A1/fr active Application Filing
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2012
- 2012-10-09 US US13/648,024 patent/US9344746B2/en active Active
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2016
- 2016-05-16 US US15/155,528 patent/US9930380B2/en not_active Expired - Lifetime
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2018
- 2018-02-09 US US15/892,991 patent/US10230998B2/en not_active Expired - Lifetime
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2019
- 2019-01-23 US US16/255,161 patent/US10979746B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
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See references of WO2004073311A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2851110B1 (fr) | 2005-04-01 |
US8311125B2 (en) | 2012-11-13 |
US20180234710A1 (en) | 2018-08-16 |
WO2004073311A1 (fr) | 2004-08-26 |
US20130036436A1 (en) | 2013-02-07 |
US20060182278A1 (en) | 2006-08-17 |
FR2851110A1 (fr) | 2004-08-13 |
US9344746B2 (en) | 2016-05-17 |
US20160337669A1 (en) | 2016-11-17 |
US10230998B2 (en) | 2019-03-12 |
US20190394501A1 (en) | 2019-12-26 |
US9930380B2 (en) | 2018-03-27 |
US10979746B2 (en) | 2021-04-13 |
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