CA2415373A1 - Systemes et procedes de codage et de decodage radiodiffuses - Google Patents
Systemes et procedes de codage et de decodage radiodiffuses Download PDFInfo
- Publication number
- CA2415373A1 CA2415373A1 CA002415373A CA2415373A CA2415373A1 CA 2415373 A1 CA2415373 A1 CA 2415373A1 CA 002415373 A CA002415373 A CA 002415373A CA 2415373 A CA2415373 A CA 2415373A CA 2415373 A1 CA2415373 A1 CA 2415373A1
- Authority
- CA
- Canada
- Prior art keywords
- image
- descrambler
- opaque
- bars
- broadcasted
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title description 21
- 239000000976 ink Substances 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000002452 interceptive effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 19
- 239000000758 substrate Substances 0.000 description 15
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000001629 suppression 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]
- H04N21/40—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
- H04N21/4408—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 video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
-
- 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
-
- 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
- H04N7/171—Systems operating in the amplitude domain of the television signal
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
L'invention concerne un mécanisme de codage et de décodage interactif destiné à Internet, à la télévision ou aux supports de données. Une image codée fixe ou variable est imprimée sur un film translucide ou transparent et placée devant un décodeur radiodiffusé pour décoder l'image codée. Une image zoomée oscillante est projetée sur l'écran du moniteur ou de la télévision, cette image s'alignant correctement par rapport à l'image codée, découvrant ainsi l'image cachée. L'image codée et le décodeur peuvent également être inversés pour conserver le contrôle de l'image cachée sur le site Web ou le site de transmission télévisuel. Des encres classiques suffisamment résistantes à l'usure peuvent être utilisées pour créer l'image imprimée, ou un apprêt peut être appliqué pour améliorer la protection de l'encre. L'image zoomée oscillante permet d'obtenir une plus grande uniformité entre l'équipement, les processeurs, le logiciel et les explorateurs.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61154300A | 2000-07-07 | 2000-07-07 | |
| US09/611,543 | 2000-07-07 | ||
| PCT/US2001/019671 WO2002005556A1 (fr) | 2000-07-07 | 2001-06-20 | Systemes et procedes de codage et de decodage radiodiffuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2415373A1 true CA2415373A1 (fr) | 2002-01-17 |
Family
ID=24449446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002415373A Abandoned CA2415373A1 (fr) | 2000-07-07 | 2001-06-20 | Systemes et procedes de codage et de decodage radiodiffuses |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1300015A1 (fr) |
| AU (1) | AU2001269946A1 (fr) |
| CA (1) | CA2415373A1 (fr) |
| WO (1) | WO2002005556A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100791938B1 (ko) * | 2006-10-14 | 2008-01-04 | 주식회사 아이엠에스원 | 마케팅용 매직코드와 이를 이용한 매체 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL78541A (en) * | 1986-04-18 | 1989-09-28 | Rotlex Optics Ltd | Method and apparatus for encryption of optical images |
| US6198822B1 (en) * | 1998-02-11 | 2001-03-06 | Ictv, Inc. | Enhanced scrambling of slowly changing video signals |
| US5984367A (en) * | 1998-05-20 | 1999-11-16 | Thomas L. Barnhart | Hidden image game piece |
-
2001
- 2001-06-20 AU AU2001269946A patent/AU2001269946A1/en not_active Abandoned
- 2001-06-20 CA CA002415373A patent/CA2415373A1/fr not_active Abandoned
- 2001-06-20 EP EP01948510A patent/EP1300015A1/fr not_active Withdrawn
- 2001-06-20 WO PCT/US2001/019671 patent/WO2002005556A1/fr not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AU2001269946A1 (en) | 2002-01-21 |
| WO2002005556A1 (fr) | 2002-01-17 |
| EP1300015A1 (fr) | 2003-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20050620 |