WO2001091462A1 - Dispositif et procede de synchronisation de programmes audiovisuels diffuses et d'informations complementaires - Google Patents
Dispositif et procede de synchronisation de programmes audiovisuels diffuses et d'informations complementaires Download PDFInfo
- Publication number
- WO2001091462A1 WO2001091462A1 PCT/EP2001/005853 EP0105853W WO0191462A1 WO 2001091462 A1 WO2001091462 A1 WO 2001091462A1 EP 0105853 W EP0105853 W EP 0105853W WO 0191462 A1 WO0191462 A1 WO 0191462A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- information
- broadcast
- sets
- audiovisual programs
- semantic elements
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 17
- 230000000295 complement effect Effects 0.000 title description 3
- 230000002596 correlated effect Effects 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 8
- 230000000875 corresponding effect Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000033764 rhythmic process Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 238000013528 artificial neural network Methods 0.000 claims description 3
- 238000006467 substitution reaction Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 230000002123 temporal effect Effects 0.000 claims 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 238000013473 artificial intelligence Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video 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]
- H04N21/40—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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video 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
- H04N21/454—Content or additional data filtering, e.g. blocking advertisements
-
- 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
- H04N21/454—Content or additional data filtering, e.g. blocking advertisements
- H04N21/4545—Input to filtering algorithms, e.g. filtering a region of the image
- H04N21/45452—Input to filtering algorithms, e.g. filtering a region of the image applied to an object-based stream, e.g. MPEG-4 streams
-
- 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
- H04N21/466—Learning process for intelligent management, e.g. learning user preferences for recommending movies
- H04N21/4662—Learning process for intelligent management, e.g. learning user preferences for recommending movies characterized by learning algorithms
- H04N21/4666—Learning process for intelligent management, e.g. learning user preferences for recommending movies characterized by learning algorithms using neural networks, e.g. processing the feedback provided by the user
-
- 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
- H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
-
- 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
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
Definitions
- the present invention relates to a device and a method for synchronizing broadcast audiovisual programs and additional information, as well as to corresponding applications.
- a central server receives from program centers a program guide, which contains information relating to the programs to be broadcast. A viewer can thus, directly from their television, access information that interests them.
- a particularly useful and user-friendly system would offer viewers the possibility of seeing information relating to the program being broadcast live on their screen. This display (superimposed on the image or spatially shifted) would then be automatic, and would last for for example a few seconds, or would be activated by the user.
- Certain channels do send signals to identify the program currently being broadcast, but most of them do not use such a technique, and the programs concerned are in the minority.
- the present invention provides a device and a method for synchronizing broadcast audiovisual programs and additional information, in particular allowing synchronized real-time display of the programs and additional information.
- the device and the method of the invention also make possible a sound diffusion of the additional information (for example for the visually impaired), which can interrupt the sound diffusion of the program for a short time or, possibly, be superimposed on it with a higher intensity. .
- the device and method of the invention also have applications based on the use of complementary information for purposes other than broadcasting, in particular for automatic recordings on video recorders.
- Other applications relate to the substitution of content for audiovisual programs.
- the user can for example decide in advance an automatic replacement and in real time on the screen of a certain category of programs (for example variety shows) by another (for example fiction films), by means of a selection from several sources of distribution (several channels, Internet, local storage system ).
- the invention relates to a device for synchronizing broadcast audiovisual programs and additional information according to claim 1.
- broadcasting channel means any channel or set of communication channels for information coming from broadcasting means and intended for reception means, corresponding to a given broadcasting schedule.
- broadcasting of audiovisual programs is carried out indifferently from all techniques, such as wireless broadcasting network, satellite, cable, Internet or local storage system.
- the information set for each program contains meaningful information about that program, such as one or more of the following:
- the information set also includes other information, useful for understanding the program (therefore for example for real-time display) but not very determining for the recognition of semantic elements, therefore preferably not used for correlation, for example : - director, author of the script, composer,
- the semantic elements extracted are meanings significant for recognition, that is to say for the connection of these semantic elements with the information used.
- they advantageously include: - a family of shapes (for example a moving ball to identify a football match, busts in medium shots to identify debates or presenters %),
- a sound level for example a higher sound level to identify advertisements
- a rhythm of movement for example a fast rhythm to identify advertisements and slow for identifying a debate in the studio
- Image and / or sound detection and recognition of semantic elements is implemented by techniques which are known per se.
- the correlation of semantic elements with available information advantageously uses artificial intelligence methods, built for example around neural networks (artificial intelligence motor association - self-learning).
- the device of the invention however imposes on these recognition techniques the constraint of a choice from an ordered list, which basically amounts to positioning a pointer in this list. This constraint relating to the lists in the program guide makes recognition possible, because it imposes a framework limited to the area of analysis.
- the recognition capacity is acquired by learning, and not programmed a priori.
- This learning leaves flexibility to the system and allows a large number of parameters related to the image and sound of the programs broadcast (semantic elements) and the information used (set of information) to be taken into account.
- the set of all parameters can provide reliable results. These are manifested by the most significant probability for the positioning of the pointer in each list, which corresponds to the strongest correlation between the semantic elements and the sets of information in the list.
- the invention is thus based on the combination of three nested functions:
- An important advantage of the invention is that it does not require any particular means to be implemented at the transmission level, the identification of the appropriate information being able to be entirely carried out upon reception, whether the latter is final (terminals, such as interactive TVs) or intermediate TVs (servers).
- the device according to the invention is preferably located geographically in a central server, designed to make the information obtained available to reception means.
- the central server then advantageously systematically synchronizes on a selection of channels, and transmits the information to the users automatically (for example each time the channel is changed for a few seconds) and / or on request.
- the synchronization device of the invention is in accordance with claim 2, and advantageously in claim 3.
- the positioning of the pointer in each of the ordered lists is necessarily done in one direction, towards a rank greater than or equal to the current position of the pointer. This amounts to imposing the choice of information relating to the current program or to a subsequent program - unless the list is updated.
- This additional constraint facilitates recognition operations, at the cost of an additional restriction on the determination of the relevant information sets.
- the initial positioning of the pointer in the list is advantageously obtained by means of the times indicated in the program guide and the current time.
- the summary block advantageously takes into account the set of information last selected to update the indicator. This method can make it possible to optimally position the indicators over time, and therefore make the determination of the current indicator more secure and more efficient. However, it implies that the update is done continuously. In addition, in the event of an error in the automatic selection of an indicator, this error may have repercussions on subsequent choices through less efficiency or new errors.
- the summary block uses the times indicated in the program guide for default positioning. The two forms of updating are advantageously combined, the indicator of each list preferably having its position modified each time that updating by schedule or by selection leads to a position subsequent to the current position in the list - this modification does not affect the set of information in use, but only the recognition operations.
- the synchronization device is for example implemented periodically, in time slots close to the start and end times indicated in the program guides and / or at the request of users.
- this order relation constraint is not imposed. This makes it possible to reverse programs, which can occur, for example, in the presence of sports programs broadcast live.
- the invention also relates to applications of the device of the invention, as set out in claims 8 to 10. It also relates to a method for synchronizing broadcast audiovisual programs and additional information, as defined in claim 11.
- FIG. 1 is a block diagram showing a synchronization device according to the invention, in its environment
- FIG. 1 shows a program guide used by the device of Figure 1;
- FIG. 3 illustrates the principle operation of pointing one of the indicators used in the device of FIG. 1, to the corresponding list in the program guide of FIG. 2.
- a central unit 2 (FIG. 1) of an audiovisual program receiver 10 is provided for receiving the content of the programs 10 from a broadcasting unit 1 (for example a broadcaster) and for having access to a program guide 20 an information center 3 (for example a dedicated service provider).
- the central unit 2 is then able to produce from the programs 10 and information from the information center 3, audiovisual programs 15 broadcast with synchronized complementary information, and to communicate these programs 15 to broadcasting means 4 to 1. 'screen.
- the central unit 2 more precisely comprises:
- a synthesis block 5 responsible for controlling all of the operations and in particular for synchronizing the programs 10 with selected information
- a memory 6 intended to store information relating to the program guide 20 and the extraction of appropriate information from this guide 20,
- a recognition unit 8 of semantic elements intended to relate the semantic elements 41-43 identified and information coming from the program guide 20.
- the recognition unit 8 operates on the basis of lists 21, 22 and 23 (FIG. 2) arranged chronologically from sets of information (timetables, duration, title, summary, etc.) respectively referenced 21 -
- Each of the lists 21 to 23 is associated with a broadcasting channel (television channel) and its information sets 21 ⁇ -21 n ⁇ , 22-
- the recognition unit 8 is capable of selecting respectively the set of information 44, 45 or 46 from this list which is most probably correlated with the semantic elements 41, 42 or 43 extracted from this program by the detection set 7.
- This recognition unit 8 is provided to perform a preliminary learning allowing him, by means of learning materials comprising semantic elements and associated information, to make the most judicious selections. This learning is advantageously continued during use.
- the recognition unit 8 for example implements neural network techniques associated with an artificial intelligence engine.
- an additional constraint brings into play indicators 31, 32 and 33 (FIGS. 1 and 3) pointing respectively to the current sets of information selected in lists 21, 22 and 23.
- These indicators 31 to 33 stored in memory 6, give the sets of information corresponding to the audiovisual programs last broadcast respectively on each of the broadcasting channels (for example, the indicator 31 points to the set 21 2 which corresponds to the program last broadcast on the first chain - Figure 3).
- the additional constraint imposed by the recognition unit 8 is for example that the set of information to be selected from one of the lists 21, 22 or 23 is located downstream of the set of information pointed to by the indicator 31, 32 or 33.
- the chronological nature of the lists is thus used to make it safer and / or easier to identify the appropriate information.
- the selection of a set of information is authorized downstream, but on condition that the latter is not more than two units distant from the current one.
- the summary block 5 is responsible for updating the indicators 31 to
- one selects from the chronologically ordered list 21 of sets of information associated with the first channel, the set of information 44 most probably correlated with the semantic elements 41 and respecting the constraint chosen on the displacement of the indicator 31 associated with the list 21, by means of the recognition unit 8;
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- Evolutionary Computation (AREA)
- Artificial Intelligence (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Systems (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001586920A JP2003534740A (ja) | 2000-05-25 | 2001-05-22 | ブロードキャストされるオーディオビジュアル番組と補足情報とを同期するための装置及び方法 |
KR1020027014792A KR20020093976A (ko) | 2000-05-25 | 2001-05-22 | 방송 시청각 프로그램과 보충 데이터를 동기시키기 위한디바이스 및 방법 |
MXPA02011594A MXPA02011594A (es) | 2000-05-25 | 2001-05-22 | Dispositivo y proceso para la sincronizacion de programas audiovisuales difundidos y de informaciones complementarias. |
EP01951512A EP1293094A1 (fr) | 2000-05-25 | 2001-05-22 | Dispositif et procede de synchronisation de programmes audiovisuels diffuses et d'informations complementaires |
US10/276,385 US7015972B2 (en) | 2000-05-25 | 2001-05-22 | Device and method for synchronizing broadcast audio-visual programs and complementary data |
AU2001272415A AU2001272415A1 (en) | 2000-05-25 | 2001-05-22 | Device and method for synchronising broadcast audio-visual programmes and complementary data |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00401479.1 | 2000-05-25 | ||
EP00401479 | 2000-05-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001091462A1 true WO2001091462A1 (fr) | 2001-11-29 |
Family
ID=8173703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/005853 WO2001091462A1 (fr) | 2000-05-25 | 2001-05-22 | Dispositif et procede de synchronisation de programmes audiovisuels diffuses et d'informations complementaires |
Country Status (8)
Country | Link |
---|---|
US (1) | US7015972B2 (fr) |
EP (1) | EP1293094A1 (fr) |
JP (1) | JP2003534740A (fr) |
KR (1) | KR20020093976A (fr) |
CN (1) | CN1429455A (fr) |
AU (1) | AU2001272415A1 (fr) |
MX (1) | MXPA02011594A (fr) |
WO (1) | WO2001091462A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004004336A2 (fr) | 2002-06-28 | 2004-01-08 | Thomson Licensing S.A. | Systeme et procede de synchronisation pour programmes audiovisuels, dispositifs et procedes associes |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8307403B2 (en) * | 2005-12-02 | 2012-11-06 | Microsoft Corporation | Triggerless interactive television |
US7853198B2 (en) * | 2006-10-18 | 2010-12-14 | Microsoft Corporation | Delivering individualized content over a broadcast network |
CN103024581A (zh) * | 2012-12-26 | 2013-04-03 | Tcl集团股份有限公司 | 智能电视及其节目交互实现方法、*** |
CN107465952B (zh) * | 2017-09-12 | 2019-08-16 | 中广热点云科技有限公司 | 一种广播内容与补充信息同步播放的方法和*** |
JP6903700B2 (ja) * | 2019-03-22 | 2021-07-14 | 株式会社三井住友銀行 | Aiを活用した広告推奨方法、プログラム、およびコンピュータ |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09293360A (ja) * | 1996-04-26 | 1997-11-11 | Hitachi Ltd | 映像記録再生装置 |
WO1998027497A1 (fr) * | 1996-12-05 | 1998-06-25 | Interval Research Corporation | Logiciel d'exploration aux fins de la navigation dans un bloc d'informations, notamment aux fins de l'exploration d'information sous forme de donnees audiovisuelles |
US5818510A (en) * | 1994-10-21 | 1998-10-06 | Intel Corporation | Method and apparatus for providing broadcast information with indexing |
WO1999036863A2 (fr) * | 1998-01-13 | 1999-07-22 | Koninklijke Philips Electronics N.V. | Systeme informatique multimedia a capacite de segmentation d'histoire et programme d'exploitation prevu a cet effet |
WO2000005884A1 (fr) * | 1998-07-20 | 2000-02-03 | Mate - Media Access Technologies Ltd. | Procede de selection automatique de canaux video |
JP2000048206A (ja) * | 1998-05-26 | 2000-02-18 | Sony Corp | 画像処理装置および方法、並びに媒体 |
US6141678A (en) * | 1998-04-29 | 2000-10-31 | Webtv Networks, Inc. | Presenting information relating to a program by recognizing text in closed captioning data |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6583821B1 (en) * | 1999-07-16 | 2003-06-24 | Thomson Licensing S.A. | Synchronizing apparatus for a compressed audio/video signal receiver |
US6630963B1 (en) * | 2001-01-23 | 2003-10-07 | Digeo, Inc. | Synchronizing a video program from a television broadcast with a secondary audio program |
-
2001
- 2001-05-22 EP EP01951512A patent/EP1293094A1/fr not_active Withdrawn
- 2001-05-22 MX MXPA02011594A patent/MXPA02011594A/es active IP Right Grant
- 2001-05-22 JP JP2001586920A patent/JP2003534740A/ja not_active Withdrawn
- 2001-05-22 CN CN01809480A patent/CN1429455A/zh active Pending
- 2001-05-22 KR KR1020027014792A patent/KR20020093976A/ko not_active Application Discontinuation
- 2001-05-22 WO PCT/EP2001/005853 patent/WO2001091462A1/fr not_active Application Discontinuation
- 2001-05-22 AU AU2001272415A patent/AU2001272415A1/en not_active Abandoned
- 2001-05-22 US US10/276,385 patent/US7015972B2/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5818510A (en) * | 1994-10-21 | 1998-10-06 | Intel Corporation | Method and apparatus for providing broadcast information with indexing |
JPH09293360A (ja) * | 1996-04-26 | 1997-11-11 | Hitachi Ltd | 映像記録再生装置 |
WO1998027497A1 (fr) * | 1996-12-05 | 1998-06-25 | Interval Research Corporation | Logiciel d'exploration aux fins de la navigation dans un bloc d'informations, notamment aux fins de l'exploration d'information sous forme de donnees audiovisuelles |
WO1999036863A2 (fr) * | 1998-01-13 | 1999-07-22 | Koninklijke Philips Electronics N.V. | Systeme informatique multimedia a capacite de segmentation d'histoire et programme d'exploitation prevu a cet effet |
US6141678A (en) * | 1998-04-29 | 2000-10-31 | Webtv Networks, Inc. | Presenting information relating to a program by recognizing text in closed captioning data |
JP2000048206A (ja) * | 1998-05-26 | 2000-02-18 | Sony Corp | 画像処理装置および方法、並びに媒体 |
WO2000005884A1 (fr) * | 1998-07-20 | 2000-02-03 | Mate - Media Access Technologies Ltd. | Procede de selection automatique de canaux video |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004004336A2 (fr) | 2002-06-28 | 2004-01-08 | Thomson Licensing S.A. | Systeme et procede de synchronisation pour programmes audiovisuels, dispositifs et procedes associes |
Also Published As
Publication number | Publication date |
---|---|
US7015972B2 (en) | 2006-03-21 |
CN1429455A (zh) | 2003-07-09 |
EP1293094A1 (fr) | 2003-03-19 |
US20040226040A1 (en) | 2004-11-11 |
MXPA02011594A (es) | 2003-03-27 |
AU2001272415A1 (en) | 2001-12-03 |
JP2003534740A (ja) | 2003-11-18 |
KR20020093976A (ko) | 2002-12-16 |
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