Methods and systems for MPAA filtering

Systems and methods for filtering to comply with copy-protection regulations set forth for HDTV signals by the MPAA are presented. A copy-protection filter constrains the resolution of the HDTV signal when copy-protection bits are present in a video signal. The copy-protection filter may be placed i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NEUMAN DARREN, MONAHAN CHUCK, MOVSHOVICH ALEK, LAW PATRICK
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Systems and methods for filtering to comply with copy-protection regulations set forth for HDTV signals by the MPAA are presented. A copy-protection filter constrains the resolution of the HDTV signal when copy-protection bits are present in a video signal. The copy-protection filter may be placed in an analog data stream before the video signal is converted from a digital to an analog signal. A second copy-protection filter is optionally placed in a digital data stream. The copy-protection filter may be combined with other filters in a video encoder, or with a scaler before the input video data stream enters a compositor.