Device for splitting a digital interlaced television signal into

Details Device for splitting a digital interlaced television signal into Device for splitting a digital interlaced television signal into

1992-06-12

1993-08-24

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 11, 358140, H06N 701, H06N 1120, H06N 712

Patent

active

052393771

ABSTRACT:
Device for splitting a digital interlaced television signal into components in which interlaced frames are applied to a vertical low-pass filter (6). To prevent motion artefacts in the spatial signal thus obtained, the interlaced frame is also applied to a vertical high-pass filter (8). This vertical high-pass filter supplies a motion auxiliary signal which may have a small vertical bandwidth. When combining the spatial signal and the motion auxiliary signal, noticeable motion artefacts do not occur in the interlaced frame. The device may be used for deriving a standard television signal from a high-definition television (HDTV) signal and for compatible transmission of HDTV signals.

REFERENCES:
patent: 4551753 (1985-11-01), Nishigawa et al.
patent: 4868654 (1989-09-01), Juri et al.
patent: 4947243 (1990-08-01), Wendland et al.
patent: 4979041 (1990-12-01), Schreiber
patent: 5097331 (1992-03-01), Chen et al.
patent: 5101273 (1992-03-01), Gillies et al.
patent: 5115309 (1992-05-01), Hang

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