Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-01-31
2006-01-31
An, Shawn S. (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240280, C375S240260, C375S240010, C382S235000, C382S251000, C704S501000, C704S504000
Reexamination Certificate
active
06993073
ABSTRACT:
An MPEG Optimization Software (MOPSW) for maximizing a Video Compression Ratio (VDCR) while maintaining a good output Video Image Quality (VDIQ) of an Input MPEG file (IMPEG) is disclosed. The IMPEG has a set of adjustable MPEG Control Parameters affecting both its VDCR and VDIQ. In a specific embodiment with application to MPEG2 files, the MOPSW employs the following optimized set of adjustable MPEG Control Parameters:in-line-formulae description="In-line Formulae" end="lead"?Set Video Size=(x)×(Minutes of Video) where x=12 through 18;in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Maximum BITRATE=2200 through 3300;in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Maximum Average BITRATE=2200; andin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Minimum BITRATE=300in-line-formulae description="In-line Formulae" end="tail"?and achieved a VDCR that is at least 200% higher than what is typically available from current DVD suppliers in the art while maintaining a good output VDIQ for a representative set of movie titles. An associated method of iteratively determining the optimized set of adjustable MPEG Control Parameters is also presented.
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Foong James
Toy Steven
An Shawn S.
Chang C. P.
Zheng Joe
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