Methods and apparatus for decoding and displaying multiple digital images in parallel
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United States of America Patent
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Feb 6, 2007
Issued Date -
N/A
app pub date -
Apr 30, 2002
filing date -
Oct 11, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods and apparatus for implementing a reduced cost HDTV/SDTV video decoder are disclosed. The described joint video decoder is capable of decoding HDTV pictures at approximately the resolution of standard definition television pictures and can be used to decode HDTV and/or SDTV pictures. The described video decoder may be used as part of a picture-in-picture decoder circuit for providing picture-in-picture capability without providing multiple full resolution video decoders. The reduction in decoder circuit complexity is achieved through the use of a plurality of data reduction techniques including the use of a preparser, downsampling, and truncating pixel values.
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