Multi-channel HDTV system
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United States of America Patent
Stats
-
Jul 7, 1992
Grant Date -
N/A
app pub date -
Aug 13, 1990
filing date -
Aug 13, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter bank comprising first and second finite impulse response diamond-shaped filters with finite precision filter coefficients is used to convert a high definition progressive video sequence in a vertical-time representation into an interlaced sequence and a deinterlacing sequence. The interlaced sequence may be used by a low resolution television receiver to display a low resolution television image. The interlaced and deinterlacing sequences may be recombined to perfectly reconstruct the progressive high definition video sequence which then may be used by a high definition television receiver. Thus, the inventive system has the advantage that it enables a single high definition video sequence to be utilized by both high definition television equipment and lower resolution television equipment so that an existing base of consumer television equipment is not rendered obsolete by the introduction of a high definition television sequence.
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Family
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Cited Art Landscape
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