Invention Grant
- Patent Title: Digital light processing display device
- Patent Title (中): 数码光处理显示装置
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Application No.: US12225599Application Date: 2007-03-29
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Publication No.: US09253458B2Publication Date: 2016-02-02
- Inventor: Didier Doyen , Pascal Bourdon , Thierry Borel
- Applicant: Didier Doyen , Pascal Bourdon , Thierry Borel
- Applicant Address: FR Issy-les-Moulineaux
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Issy-les-Moulineaux
- Agency: Myers Wolin LLC
- Priority: EP06290545 20060403
- International Application: PCT/EP2007/053003 WO 20070329
- International Announcement: WO2007/113195 WO 20071011
- Main IPC: G09G5/02
- IPC: G09G5/02 ; H04N9/31 ; H04N5/913

Abstract:
The invention relates to a display device using the DLP (Digital Light Processing) technology. This invention is in the field of digital cinema and content protection, where camcorder acquisition followed by immediate illegal distribution creates important revenue losses for content owners. According to the invention, the addressing of the display device is modified in order to introduce an anti-copy processing. The display device comprises modulation means for modulating the color or brightness of video data of video pictures received at a first rate and for outputting at a second rate modulated video data, said second rate being a multiple of the first rate, subfield coding means for coding said modulated video data into subfield data, said subfield data being delivered at the second rate, and addressing means for addressing the array with said subfield data at a third rate. Advantageously, the third rate is not a multiple of the first rate.
Public/Granted literature
- US20090058875A1 Digital Light Processing Display Device Public/Granted day:2009-03-05
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